forward analysis

state_machine_exporter/src/main/java/click/kamil/springstatemachineexporter/analysis/enricher/matching/HeuristicEventMatchingEngine.java

@@ -27,7 +27,7 @@ public class HeuristicEventMatchingEngine implements EventMatchingEngine {
                     hasPolyMatch = true;
                     break;
                 }
-                continue; // Stricter matching: do not fallback if both have qualifiers but don't match
+                continue;
             }
 
             String simplePe = pe;

state_machine_exporter/src/main/java/click/kamil/springstatemachineexporter/analysis/enricher/path/ForwardPathEstimationEnricher.java

@@ -0,0 +1,69 @@
+package click.kamil.springstatemachineexporter.analysis.enricher.path;
+
+import click.kamil.springstatemachineexporter.analysis.enricher.AnalysisEnricher;
+import click.kamil.springstatemachineexporter.analysis.model.AnalysisResult;
+import click.kamil.springstatemachineexporter.analysis.model.CallChain;
+import click.kamil.springstatemachineexporter.analysis.model.TriggerPoint;
+import click.kamil.springstatemachineexporter.analysis.service.CodebaseIntelligenceProvider;
+import click.kamil.springstatemachineexporter.ast.common.CodebaseContext;
+import lombok.extern.slf4j.Slf4j;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Slf4j
+public class ForwardPathEstimationEnricher implements AnalysisEnricher {
+
+    private final boolean isEnabled;
+    private final PathValueEstimator estimator;
+
+    public ForwardPathEstimationEnricher() {
+        this.isEnabled = Boolean.parseBoolean(System.getProperty("analyzer.forward-path-estimation.enabled", "false"));
+        this.estimator = new SymbolicPathValueEstimator();
+    }
+
+    @Override
+    public void enrich(AnalysisResult result, CodebaseContext context, CodebaseIntelligenceProvider intelligence) {
+        if (!isEnabled || result.getMetadata() == null || result.getMetadata().getCallChains() == null) {
+            return;
+        }
+
+        log.info("Running Symbolic Forward Path Analysis for {}", result.getName());
+        
+        List<CallChain> chains = result.getMetadata().getCallChains();
+        List<CallChain> updatedChains = chains.stream().map(chain -> {
+            if (chain.getTriggerPoint() == null || chain.getTriggerPoint().getEvent() == null) return chain;
+            
+            // If the event looks like a dynamic variable (no dots, not an enum format)
+            if (!chain.getTriggerPoint().getEvent().contains(".")) {
+                List<String> estimatedValues = estimator.estimatePossibleValues(chain, context);
+                if (estimatedValues != null && !estimatedValues.isEmpty()) {
+                    log.info("Symbolic Path Analysis estimated values for {} -> {}", chain.getTriggerPoint().getEvent(), estimatedValues);
+                    
+                    List<String> polyEvents = new ArrayList<>();
+                    if (chain.getTriggerPoint().getPolymorphicEvents() != null) {
+                        polyEvents.addAll(chain.getTriggerPoint().getPolymorphicEvents());
+                    }
+                    polyEvents.addAll(estimatedValues);
+                    
+                    TriggerPoint newTp = chain.getTriggerPoint().toBuilder()
+                            .polymorphicEvents(polyEvents)
+                            .build();
+                            
+                    return chain.toBuilder().triggerPoint(newTp).build();
+                }
+            }
+            return chain;
+        }).collect(Collectors.toList());
+        click.kamil.springstatemachineexporter.analysis.model.CodebaseMetadata updatedMetadata = 
+                click.kamil.springstatemachineexporter.analysis.model.CodebaseMetadata.builder()
+                .triggers(result.getMetadata().getTriggers())
+                .entryPoints(result.getMetadata().getEntryPoints())
+                .callChains(updatedChains)
+                .properties(result.getMetadata().getProperties())
+                .build();
+
+        result.setMetadata(updatedMetadata);
+    }
+}

state_machine_exporter/src/main/java/click/kamil/springstatemachineexporter/analysis/enricher/path/PathValueEstimator.java

@@ -0,0 +1,10 @@
+package click.kamil.springstatemachineexporter.analysis.enricher.path;
+
+import click.kamil.springstatemachineexporter.analysis.model.CallChain;
+import click.kamil.springstatemachineexporter.ast.common.CodebaseContext;
+
+import java.util.List;
+
+public interface PathValueEstimator {
+    List<String> estimatePossibleValues(CallChain chain, CodebaseContext context);
+}

state_machine_exporter/src/main/java/click/kamil/springstatemachineexporter/analysis/enricher/path/SymbolicPathValueEstimator.java

@@ -0,0 +1,130 @@
+package click.kamil.springstatemachineexporter.analysis.enricher.path;
+
+import click.kamil.springstatemachineexporter.analysis.model.CallChain;
+import click.kamil.springstatemachineexporter.ast.common.CodebaseContext;
+import org.eclipse.jdt.core.dom.*;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+public class SymbolicPathValueEstimator implements PathValueEstimator {
+
+    @Override
+    public List<String> estimatePossibleValues(CallChain chain, CodebaseContext context) {
+        if (chain.getMethodChain() == null || chain.getMethodChain().isEmpty()) {
+            return null;
+        }
+
+        Set<String> collectedConstants = new HashSet<>();
+
+        for (String methodFqn : chain.getMethodChain()) {
+            int lastDot = methodFqn.lastIndexOf('.');
+            if (lastDot == -1) continue;
+            
+            String className = methodFqn.substring(0, lastDot);
+            String methodName = methodFqn.substring(lastDot + 1);
+
+            TypeDeclaration td = context.getTypeDeclaration(className);
+            if (td == null) continue;
+
+            MethodDeclaration md = context.findMethodDeclaration(td, methodName, true);
+            if (md == null || md.getBody() == null) continue;
+
+            md.getBody().accept(new ASTVisitor() {
+                @Override
+                public boolean visit(MethodInvocation node) {
+                    if ((node.getName().getIdentifier().equals("equals") || node.getName().getIdentifier().equals("equalsIgnoreCase")) 
+                        && node.arguments().size() == 1) {
+                        
+                        Expression caller = node.getExpression();
+                        Expression arg = (Expression) node.arguments().get(0);
+                        
+                        click.kamil.springstatemachineexporter.analysis.resolver.ConstantResolver resolver = new click.kamil.springstatemachineexporter.analysis.resolver.ConstantResolver();
+                        
+                        String callerVal = resolver.resolve(caller, context);
+                        if (callerVal != null && !callerVal.isEmpty()) {
+                            addValue(collectedConstants, callerVal);
+                        }
+                        
+                        String argVal = resolver.resolve(arg, context);
+                        if (argVal != null && !argVal.isEmpty()) {
+                            addValue(collectedConstants, argVal);
+                        }
+                    }
+                    return super.visit(node);
+                }
+
+                @Override
+                public boolean visit(InfixExpression node) {
+                    if (node.getOperator() == InfixExpression.Operator.EQUALS) {
+                        click.kamil.springstatemachineexporter.analysis.resolver.ConstantResolver resolver = new click.kamil.springstatemachineexporter.analysis.resolver.ConstantResolver();
+                        String left = resolver.resolve(node.getLeftOperand(), context);
+                        if (left != null && !left.isEmpty()) {
+                            addValue(collectedConstants, left);
+                        }
+                        String right = resolver.resolve(node.getRightOperand(), context);
+                        if (right != null && !right.isEmpty()) {
+                            addValue(collectedConstants, right);
+                        }
+                    }
+                    return super.visit(node);
+                }
+
+                @Override
+                public boolean visit(SwitchStatement node) {
+                    for (Object stmt : node.statements()) {
+                        if (stmt instanceof SwitchCase sc && !sc.isDefault()) {
+                            for (Object expr : sc.expressions()) {
+                                click.kamil.springstatemachineexporter.analysis.resolver.ConstantResolver resolver = new click.kamil.springstatemachineexporter.analysis.resolver.ConstantResolver();
+                                String val = resolver.resolve((Expression) expr, context);
+                                if (val != null && !val.isEmpty()) {
+                                    addValue(collectedConstants, val);
+                                }
+                            }
+                        }
+                    }
+                    return super.visit(node);
+                }
+                
+                @Override
+                public boolean visit(SwitchExpression node) {
+                    for (Object stmt : node.statements()) {
+                        if (stmt instanceof SwitchCase sc && !sc.isDefault()) {
+                            for (Object expr : sc.expressions()) {
+                                click.kamil.springstatemachineexporter.analysis.resolver.ConstantResolver resolver = new click.kamil.springstatemachineexporter.analysis.resolver.ConstantResolver();
+                                String val = resolver.resolve((Expression) expr, context);
+                                if (val != null && !val.isEmpty()) {
+                                    addValue(collectedConstants, val);
+                                }
+                            }
+                        }
+                    }
+                    return super.visit(node);
+                }
+            });
+        }
+
+        if (collectedConstants.isEmpty()) return null;
+        return new ArrayList<>(collectedConstants);
+    }
+    
+    private void addValue(Set<String> collectedConstants, String val) {
+        if (val.startsWith("ENUM_SET:")) {
+            for (String eVal : val.substring(9).split(",")) {
+                String parsed = parseEnumSetElement(eVal);
+                if (!collectedConstants.contains(parsed)) collectedConstants.add(parsed);
+            }
+        } else {
+            collectedConstants.add(val);
+        }
+    }
+    
+    private String parseEnumSetElement(String element) {
+        if (element.contains(".")) {
+            return element.substring(element.lastIndexOf('.') + 1);
+        }
+        return element;
+    }
+}

state_machine_exporter/src/main/java/click/kamil/springstatemachineexporter/analysis/model/TriggerPoint.java

@@ -8,7 +8,7 @@ import lombok.extern.jackson.Jacksonized;
 import java.util.Map;
 
 @Data
-@Builder
+@Builder(toBuilder = true)
 @Jacksonized
 @JsonIgnoreProperties(ignoreUnknown = true)
 public class TriggerPoint {

state_machine_exporter/src/main/java/click/kamil/springstatemachineexporter/analysis/resolver/ConstantResolver.java

@@ -64,6 +64,9 @@ public class ConstantResolver {
             String val = resolveManual(qn, context, visited);
             return val != null ? val : qn.toString();
         }
+        if (expr instanceof FieldAccess fa) {
+            return resolveManual(fa.getName(), context, visited);
+        }
         if (expr instanceof SimpleName sn) {
             return resolveManual(sn, context, visited);
         }
@@ -87,7 +90,14 @@ public class ConstantResolver {
                     return sn.getIdentifier();
                 }
             }
-
+                
+            if ("valueOf".equals(mi.getName().getIdentifier()) && mi.getExpression() != null) {
+                java.util.List<String> enumValues = context.getEnumValues(mi.getExpression().toString());
+                if (enumValues != null && !enumValues.isEmpty()) {
+                    return "ENUM_SET:" + String.join(",", enumValues);
+                }
+            }
+            
             IMethodBinding mb = mi.resolveMethodBinding();
             if (mb != null) {
                 ITypeBinding returnType = mb.getReturnType();
@@ -98,13 +108,43 @@ public class ConstantResolver {
                     }
                 }
             } else {
-                TypeDeclaration td = findEnclosingType(mi);
+                TypeDeclaration td = null;
+                if (mi.getExpression() != null) {
+                    ITypeBinding typeBinding = mi.getExpression().resolveTypeBinding();
+                    if (typeBinding != null) {
+                        String typeName = typeBinding.getQualifiedName();
+                        if (typeName != null && !typeName.isEmpty()) {
+                            td = context.getTypeDeclaration(typeName);
+                        }
+                    }
+                }
+                
+                if (td == null && mi.getExpression() instanceof SimpleName sn) {
+                    String typeName = resolveLocalType(sn);
+                    if (typeName != null) {
+                        td = context.getTypeDeclaration(typeName);
+                        if (td == null) {
+                            CompilationUnit cu = (CompilationUnit) mi.getRoot();
+                            td = context.getTypeDeclaration(typeName, cu);
+                        }
+                    }
+                }
+                
+                if (td == null) {
+                    td = findEnclosingType(mi);
+                }
+                
                 if (td != null) {
                     MethodDeclaration md = context.findMethodDeclaration(td, mi.getName().getIdentifier(), true);
-                    if (md != null && md.getReturnType2() != null) {
-                        java.util.List<String> values = context.getEnumValues(md.getReturnType2().toString());
-                        if (values != null && !values.isEmpty()) {
-                            return "ENUM_SET:" + String.join(",", values);
+                    if (md != null) {
+                        String evaluated = evaluateMethodOutput(mi, md, context, visited);
+                        if (evaluated != null) return evaluated;
+                        
+                        if (md.getReturnType2() != null) {
+                            java.util.List<String> values = context.getEnumValues(md.getReturnType2().toString());
+                            if (values != null && !values.isEmpty()) {
+                                return "ENUM_SET:" + String.join(",", values);
+                            }
                         }
                     }
                 }
@@ -114,6 +154,183 @@ public class ConstantResolver {
         return null;
     }
 
+    private String evaluateMethodOutput(MethodInvocation mi, MethodDeclaration md, CodebaseContext context, Set<String> visited) {
+        if (md.getBody() == null || mi.arguments().size() != md.parameters().size()) return null;
+
+        java.util.Map<String, String> localVars = new java.util.HashMap<>();
+        java.util.Set<String> declaredLocals = new java.util.HashSet<>();
+        
+        for (int i = 0; i < mi.arguments().size(); i++) {
+            Expression arg = (Expression) mi.arguments().get(i);
+            String val = resolveInternal(arg, context, visited);
+            if (val != null) {
+                org.eclipse.jdt.core.dom.SingleVariableDeclaration param = (org.eclipse.jdt.core.dom.SingleVariableDeclaration) md.parameters().get(i);
+                String paramName = param.getName().getIdentifier();
+                localVars.put(paramName, val);
+                declaredLocals.add(paramName);
+            }
+        }
+
+        String[] finalResult = new String[1];
+
+        md.getBody().accept(new ASTVisitor() {
+            @Override
+            public boolean visit(VariableDeclarationStatement vds) {
+                for (Object fragmentObj : vds.fragments()) {
+                    if (fragmentObj instanceof VariableDeclarationFragment fragment) {
+                        String varName = fragment.getName().getIdentifier();
+                        declaredLocals.add(varName);
+                        if (fragment.getInitializer() != null) {
+                            String rhsVal = resolveExpressionWithParams(fragment.getInitializer(), localVars);
+                            if (rhsVal == null) rhsVal = resolveInternal(fragment.getInitializer(), context, visited);
+                            if (rhsVal != null) {
+                                localVars.put(varName, rhsVal);
+                            }
+                        }
+                    }
+                }
+                return super.visit(vds);
+            }
+
+            @Override
+            public boolean visit(Assignment assignment) {
+                Expression lhs = assignment.getLeftHandSide();
+                String varName = null;
+                if (lhs instanceof SimpleName sn) {
+                    varName = sn.getIdentifier();
+                } else if (lhs instanceof FieldAccess fa) {
+                    varName = "this." + fa.getName().getIdentifier();
+                }
+                
+                String rhsVal = resolveExpressionWithParams(assignment.getRightHandSide(), localVars);
+                if (rhsVal == null) rhsVal = resolveInternal(assignment.getRightHandSide(), context, visited);
+                
+                if (varName != null && rhsVal != null) {
+                    if (varName.startsWith("this.")) {
+                        localVars.put(varName, rhsVal);
+                        String bareName = varName.substring(5);
+                        if (!declaredLocals.contains(bareName)) {
+                            localVars.put(bareName, rhsVal); // alias without 'this.' only if not shadowed
+                        }
+                    } else {
+                        localVars.put(varName, rhsVal);
+                        if (!declaredLocals.contains(varName)) {
+                            localVars.put("this." + varName, rhsVal); // alias with 'this.' only if not shadowed
+                        }
+                    }
+                }
+                return super.visit(assignment);
+            }
+
+            @Override
+            public boolean visit(org.eclipse.jdt.core.dom.SwitchStatement ss) {
+                if (finalResult[0] == null) {
+                    String result = evaluateSwitchStatement(ss, localVars, context, visited);
+                    if (result != null) finalResult[0] = result;
+                }
+                return false; // Do not visit children — ReturnStatements inside the switch are handled by evaluateSwitchStatement
+            }
+
+            @Override
+            public boolean visit(org.eclipse.jdt.core.dom.ReturnStatement rs) {
+                if (finalResult[0] == null) {
+                    if (rs.getExpression() instanceof org.eclipse.jdt.core.dom.SwitchExpression se) {
+                        String result = evaluateSwitchExpression(se, localVars, context, visited);
+                        if (result != null) finalResult[0] = result;
+                    } else if (rs.getExpression() != null) {
+                        String result = resolveExpressionWithParams(rs.getExpression(), localVars);
+                        if (result == null) result = resolveInternal(rs.getExpression(), context, visited);
+                        if (result != null) finalResult[0] = result;
+                    }
+                }
+                return super.visit(rs);
+            }
+        });
+
+        return finalResult[0];
+    }
+
+    private String evaluateSwitchStatement(org.eclipse.jdt.core.dom.SwitchStatement ss, java.util.Map<String, String> paramValues, CodebaseContext context, Set<String> visited) {
+        String switchVar = resolveExpressionWithParams(ss.getExpression(), paramValues);
+        if (switchVar == null) return null;
+
+        boolean matchingCase = false;
+        for (Object stmtObj : ss.statements()) {
+            if (stmtObj instanceof org.eclipse.jdt.core.dom.SwitchCase sc) {
+                matchingCase = false;
+                if (sc.isDefault()) {
+                    matchingCase = true;
+                } else {
+                    for (Object exprObj : sc.expressions()) {
+                        String caseVal = resolveExpressionWithParams((Expression) exprObj, paramValues);
+                        if (caseVal != null && switchVar.endsWith(caseVal)) {
+                            matchingCase = true;
+                            break;
+                        }
+                    }
+                }
+            } else if (matchingCase) {
+                if (stmtObj instanceof org.eclipse.jdt.core.dom.ReturnStatement rs) {
+                    return resolveInternal(rs.getExpression(), context, visited);
+                } else if (stmtObj instanceof org.eclipse.jdt.core.dom.YieldStatement ys) {
+                    return resolveInternal(ys.getExpression(), context, visited);
+                } else if (stmtObj instanceof org.eclipse.jdt.core.dom.ExpressionStatement es) {
+                    return resolveInternal(es.getExpression(), context, visited);
+                }
+            }
+        }
+        return null;
+    }
+
+    private String evaluateSwitchExpression(org.eclipse.jdt.core.dom.SwitchExpression se, java.util.Map<String, String> paramValues, CodebaseContext context, Set<String> visited) {
+        String switchVar = resolveExpressionWithParams(se.getExpression(), paramValues);
+        if (switchVar == null) return null;
+
+        boolean matchingCase = false;
+        for (Object stmtObj : se.statements()) {
+            if (stmtObj instanceof org.eclipse.jdt.core.dom.SwitchCase sc) {
+                matchingCase = false;
+                if (sc.isDefault()) {
+                    matchingCase = true;
+                } else {
+                    for (Object exprObj : sc.expressions()) {
+                        String caseVal = resolveExpressionWithParams((Expression) exprObj, paramValues);
+                        if (caseVal != null && switchVar.endsWith(caseVal)) {
+                            matchingCase = true;
+                            break;
+                        }
+                    }
+                }
+            } else if (matchingCase) {
+                if (stmtObj instanceof org.eclipse.jdt.core.dom.ExpressionStatement es) {
+                    return resolveInternal(es.getExpression(), context, visited);
+                } else if (stmtObj instanceof org.eclipse.jdt.core.dom.YieldStatement ys) {
+                    return resolveInternal(ys.getExpression(), context, visited);
+                } else if (stmtObj instanceof org.eclipse.jdt.core.dom.ReturnStatement rs) {
+                    return resolveInternal(rs.getExpression(), context, visited);
+                }
+            }
+        }
+        return null;
+    }
+
+    private String resolveExpressionWithParams(Expression expr, java.util.Map<String, String> paramValues) {
+        if (expr instanceof SimpleName sn) {
+            String name = sn.getIdentifier();
+            if (paramValues.containsKey(name)) return paramValues.get(name);
+            return null;
+        } else if (expr instanceof FieldAccess fa) {
+            String name = "this." + fa.getName().getIdentifier();
+            if (paramValues.containsKey(name)) return paramValues.get(name);
+            return null;
+        } else if (expr instanceof QualifiedName qn) {
+            return qn.getName().getIdentifier();
+        } else if (expr instanceof org.eclipse.jdt.core.dom.StringLiteral sl) {
+            return sl.getLiteralValue();
+        }
+        return null;
+    }
+
     private String resolveInfix(InfixExpression expr, CodebaseContext context, Set<String> visited) {
         if (expr.getOperator() != InfixExpression.Operator.PLUS) return null;
 
@@ -193,6 +410,28 @@ public class ConstantResolver {
                     }
                 }
             }
+            
+            // Check constructors for assignments
+            for (MethodDeclaration md : td.getMethods()) {
+                if (md.isConstructor() && md.getBody() != null) {
+                    for (Object stmtObj : md.getBody().statements()) {
+                        if (stmtObj instanceof ExpressionStatement es) {
+                            if (es.getExpression() instanceof Assignment assignment) {
+                                Expression lhs = assignment.getLeftHandSide();
+                                boolean matches = false;
+                                if (lhs instanceof SimpleName snLhs && snLhs.getIdentifier().equals(fieldName)) {
+                                    matches = true;
+                                } else if (lhs instanceof FieldAccess fa && fa.getName().getIdentifier().equals(fieldName) && fa.getExpression() instanceof ThisExpression) {
+                                    matches = true;
+                                }
+                                if (matches) {
+                                    return resolveInternal(assignment.getRightHandSide(), context, visited);
+                                }
+                            }
+                        }
+                    }
+                }
+            }
         } finally {
             visited.remove(fieldId);
         }
@@ -238,4 +477,49 @@ public class ConstantResolver {
         }
         return (TypeDeclaration) parent;
     }
+
+    private MethodDeclaration findEnclosingMethod(ASTNode node) {
+        ASTNode parent = node.getParent();
+        while (parent != null) {
+            if (parent instanceof MethodDeclaration md) {
+                return md;
+            }
+            parent = parent.getParent();
+        }
+        return null;
+    }
+
+    private String resolveLocalType(SimpleName sn) {
+        String varName = sn.getIdentifier();
+        MethodDeclaration enclosingMethod = findEnclosingMethod(sn);
+        if (enclosingMethod != null && enclosingMethod.getBody() != null) {
+            String[] typeName = new String[1];
+            enclosingMethod.getBody().accept(new ASTVisitor() {
+                @Override
+                public boolean visit(VariableDeclarationStatement node) {
+                    for (Object fragObj : node.fragments()) {
+                        VariableDeclarationFragment frag = (VariableDeclarationFragment) fragObj;
+                        if (frag.getName().getIdentifier().equals(varName)) {
+                            typeName[0] = node.getType().toString();
+                        }
+                    }
+                    return super.visit(node);
+                }
+            });
+            if (typeName[0] != null) return typeName[0];
+        }
+        
+        TypeDeclaration enclosingType = findEnclosingType(sn);
+        if (enclosingType != null) {
+            for (FieldDeclaration field : enclosingType.getFields()) {
+                for (Object fragObj : field.fragments()) {
+                    VariableDeclarationFragment frag = (VariableDeclarationFragment) fragObj;
+                    if (frag.getName().getIdentifier().equals(varName)) {
+                        return field.getType().toString();
+                    }
+                }
+            }
+        }
+        return null;
+    }
 }

state_machine_exporter/src/main/java/click/kamil/springstatemachineexporter/analysis/service/AbstractCallGraphEngine.java

@@ -144,6 +144,7 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
             }
 
             String tracedVar = traceLocalVariable(entryMethod, currentParamName);
+            System.out.println("DEBUG tracedVar: " + tracedVar + " for currentParamName: " + currentParamName);
             if (tracedVar != null && !tracedVar.equals(currentParamName)) {
                 String[] extractedFinalTraced = extractMethodSuffix(tracedVar, methodSuffix);
                 tracedVar = extractedFinalTraced[0];
@@ -174,10 +175,12 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
         }
         
         // Parse resolvedValue using JDT to robustly handle complex expressions
-        org.eclipse.jdt.core.dom.ASTParser exprParser = org.eclipse.jdt.core.dom.ASTParser.newParser(org.eclipse.jdt.core.dom.AST.getJLSLatest());
-        exprParser.setSource(resolvedValue.toCharArray());
+        System.out.println("DEBUG Parsing resolvedValue: " + resolvedValue);
+        org.eclipse.jdt.core.dom.ASTParser exprParser = org.eclipse.jdt.core.dom.ASTParser.newParser(org.eclipse.jdt.core.dom.AST.JLS17);
         exprParser.setKind(org.eclipse.jdt.core.dom.ASTParser.K_EXPRESSION);
+        exprParser.setSource(resolvedValue.toCharArray());
         org.eclipse.jdt.core.dom.ASTNode exprNode = exprParser.createAST(null);
+        System.out.println("DEBUG exprNode: " + (exprNode != null ? exprNode.getClass().getName() : "null") + ", node: " + exprNode);
         
         String varName = null;
         String methodName = null;
@@ -186,6 +189,7 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
 
         if (exprNode instanceof org.eclipse.jdt.core.dom.MethodInvocation mi) {
             methodName = mi.getName().getIdentifier();
+            System.out.println("DEBUG mi.getName(): " + methodName + ", mi.getExpression() type: " + (mi.getExpression() != null ? mi.getExpression().getClass().getName() : "null"));
             if (mi.getExpression() instanceof org.eclipse.jdt.core.dom.SimpleName sn) {
                 varName = sn.getIdentifier();
             } else if (mi.getExpression() instanceof org.eclipse.jdt.core.dom.ParenthesizedExpression pe && 
@@ -195,11 +199,44 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
                 declaredType = ce.getType().toString();
                 sourceMethod = "inline-cast";
             } else if (mi.getExpression() instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cic) {
+                System.out.println("DEBUG found ClassInstanceCreation!");
                 declaredType = click.kamil.springstatemachineexporter.ast.common.AstUtils.extractSimpleTypeName(cic.getType());
                 sourceMethod = "inline-instantiation";
+                if (cic.getAnonymousClassDeclaration() != null) {
+                    System.out.println("DEBUG resolving anonymous class!");
+                    final List<String> polyEventsRef = polymorphicEvents;
+                    for (Object declObj : cic.getAnonymousClassDeclaration().bodyDeclarations()) {
+                        if (declObj instanceof org.eclipse.jdt.core.dom.MethodDeclaration mDecl && mDecl.getName().getIdentifier().equals(methodName) && mDecl.getBody() != null) {
+                            System.out.println("DEBUG visiting anonymous class method: " + methodName);
+                            mDecl.getBody().accept(new org.eclipse.jdt.core.dom.ASTVisitor() {
+                                @Override
+                                public boolean visit(org.eclipse.jdt.core.dom.ReturnStatement rs) {
+                                    if (rs.getExpression() != null) {
+                                        System.out.println("DEBUG found return expression: " + rs.getExpression().toString());
+                                        List<org.eclipse.jdt.core.dom.Expression> tracedReturns = traceVariableAll(rs.getExpression());
+                                        for (org.eclipse.jdt.core.dom.Expression tracedRet : tracedReturns) {
+                                            extractConstantsFromExpression(tracedRet, polyEventsRef);
+                                        }
+                                    }
+                                    return super.visit(rs);
+                                }
+                            });
+                        }
+                    }
+                }
+            } else if (mi.getExpression() instanceof org.eclipse.jdt.core.dom.MethodInvocation innerMi) {
+                methodName = innerMi.getName().getIdentifier();
+                if (innerMi.getExpression() instanceof org.eclipse.jdt.core.dom.SimpleName snInner) {
+                    varName = snInner.getIdentifier();
+                } else {
+                    String exprStr = innerMi.getExpression() != null ? innerMi.getExpression().toString() : "";
+                    if (!exprStr.contains("(")) {
+                        varName = exprStr;
+                    }
+                }
             } else {
                 // Fallback for complex chained expressions
-                String exprStr = mi.getExpression() != null ? mi.getExpression().toString() : "";
+                String exprStr = mi.getExpression() != null ? mi.getExpression().toString() : "this";
                 if (!exprStr.contains("(")) {
                     varName = exprStr;
                 }
@@ -240,10 +277,13 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
                     List<org.eclipse.jdt.core.dom.Expression> tracedSetters = traceVariableAll(localSetterExpr);
                     for (org.eclipse.jdt.core.dom.Expression tracedSetter : tracedSetters) {
                         extractConstantsFromExpression(tracedSetter, polymorphicEvents);
+                        if (tracedSetter instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cic && cic.getAnonymousClassDeclaration() != null) {
+                            resolvedValue = cic.toString() + "." + methodName + "()";
+                        }
                     }
                     if (!polymorphicEvents.isEmpty()) {
                         return TriggerPoint.builder()
-                            .event(tp.getEvent())
+                            .event(resolvedValue)
                             .className(tp.getClassName())
                             .methodName(tp.getMethodName())
                             .sourceFile(tp.getSourceFile())
@@ -258,57 +298,155 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
             }
             
             if (varName != null && declaredType == null) {
-                for (String methodFqn : path) {
-                    declaredType = getVariableDeclaredType(methodFqn, varName);
-                    if (declaredType != null) {
-                        sourceMethod = methodFqn;
-                        break;
+                if (!varName.isEmpty() && !"this".equals(varName) && !"super".equals(varName)) {
+                    TypeDeclaration currentTd = context.getTypeDeclaration(tp.getClassName());
+                    if (currentTd != null) {
+                        MethodDeclaration currentMd = context.findMethodDeclaration(currentTd, tp.getMethodName(), true);
+                        if (currentMd != null) {
+                            final String[] extractedFinalTraced = {null, null};
+                            final String targetVar = varName;
+                            final String mName = methodName;
+                            final String[] finalDeclaredType = {null};
+                            final String[] finalSourceMethod = {null};
+                            currentMd.accept(new org.eclipse.jdt.core.dom.ASTVisitor() {
+                                public boolean visit(org.eclipse.jdt.core.dom.VariableDeclarationStatement node) {
+                                    for (Object fragObj : node.fragments()) {
+                                        if (fragObj instanceof org.eclipse.jdt.core.dom.VariableDeclarationFragment vdf && vdf.getName().getIdentifier().equals(targetVar)) {
+                                            if (vdf.getInitializer() != null) {
+                                                org.eclipse.jdt.core.dom.Expression valueNode = traceVariable(vdf.getInitializer());
+                                                if (valueNode instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cic) {
+                                                    if (cic.getAnonymousClassDeclaration() != null) {
+                                                        extractedFinalTraced[0] = cic.toString();
+                                                        extractedFinalTraced[1] = mName != null && !mName.equals("VariableReference") ? "." + mName + "()" : "";
+                                                    } else {
+                                                        finalDeclaredType[0] = click.kamil.springstatemachineexporter.ast.common.AstUtils.extractSimpleTypeName(cic.getType());
+                                                        finalSourceMethod[0] = "inline-instantiation";
+                                                    }
+                                                } else {
+                                                    extractedFinalTraced[0] = valueNode.toString();
+                                                    extractedFinalTraced[1] = mName != null && !mName.equals("VariableReference") ? "." + mName + "()" : "";
+                                                }
+                                            }
+                                        }
+                                    }
+                                    return super.visit(node);
+                                }
+                            });
+                            if (finalDeclaredType[0] != null) {
+                                declaredType = finalDeclaredType[0];
+                                sourceMethod = finalSourceMethod[0];
+                            }
+                            if (extractedFinalTraced[0] != null) {
+                                resolvedValue = extractedFinalTraced[0] + extractedFinalTraced[1];
+                                System.out.println("DEBUG localized tracing resolvedValue to: " + resolvedValue);
+                                // Since we updated resolvedValue, we need to extract from it if it's an inline anonymous class
+                                if (extractedFinalTraced[0].contains("new ") && extractedFinalTraced[0].contains("{")) {
+                                    org.eclipse.jdt.core.dom.ASTParser p = org.eclipse.jdt.core.dom.ASTParser.newParser(org.eclipse.jdt.core.dom.AST.JLS17);
+                                    p.setKind(org.eclipse.jdt.core.dom.ASTParser.K_EXPRESSION);
+                                    p.setSource(resolvedValue.toCharArray());
+                                    org.eclipse.jdt.core.dom.ASTNode newNode = p.createAST(null);
+                                    if (newNode instanceof org.eclipse.jdt.core.dom.Expression) {
+                                        List<org.eclipse.jdt.core.dom.Expression> traced = traceVariableAll((org.eclipse.jdt.core.dom.Expression) newNode);
+                                        for (org.eclipse.jdt.core.dom.Expression ex : traced) {
+                                            extractConstantsFromExpression(ex, polymorphicEvents);
+                                        }
+                                    }
+                                }
+                            }
+                        }
                     }
                 }
-                // If it wasn't a variable, it might be a static method call (e.g., EventBuilder.buildEvent())
-                if (declaredType == null && varName.matches("^[A-Z].*")) {
-                    org.eclipse.jdt.core.dom.TypeDeclaration staticTd = context.getTypeDeclaration(varName);
-                    if (staticTd != null) {
-                        declaredType = context.getFqn(staticTd);
-                        sourceMethod = "static-call";
+                
+                if (declaredType == null) {
+                    for (String methodFqn : path) {
+                        declaredType = getVariableDeclaredType(methodFqn, varName);
+                        if (declaredType != null) {
+                            System.out.println("DEBUG getVariableDeclaredType(" + methodFqn + ", " + varName + ") = " + declaredType);
+                            TypeDeclaration currentTd = context.getTypeDeclaration(methodFqn.substring(0, methodFqn.lastIndexOf('.')));
+                            CompilationUnit cu = currentTd != null && currentTd.getRoot() instanceof CompilationUnit ? (CompilationUnit) currentTd.getRoot() : null;
+                            List<String> values = resolveMethodReturnConstant(declaredType, methodName, 0, new HashSet<>(), cu);
+                            System.out.println("DEBUG resolveMethodReturnConstant returned: " + values);
+                            if (values != null && !values.isEmpty()) {
+                                polymorphicEvents.addAll(values);
+                            }
+                            sourceMethod = methodFqn;
+                            break;
+                        }
+                    }
+                    // If it wasn't a variable, it might be a static method call (e.g., EventBuilder.buildEvent())
+                    if (declaredType == null && varName.matches("^[A-Z].*")) {
+                        org.eclipse.jdt.core.dom.TypeDeclaration staticTd = context.getTypeDeclaration(varName);
+                        if (staticTd != null) {
+                            declaredType = context.getFqn(staticTd);
+                            sourceMethod = "static-call";
+                        } else if (context.getEnumValues(varName) != null) {
+                            declaredType = varName;
+                            sourceMethod = "static-call";
+                        }
+                    }
+                }
+            }
+            
+            if (declaredType == null && methodName != null && !methodName.equals("VariableReference")) {
+                System.out.println("DEBUG fallback triggered for methodName: " + methodName);
+                for (String methodFqn : path) {
+                    System.out.println("DEBUG fallback checking path method: " + methodFqn);
+                    TypeDeclaration currentTd = context.getTypeDeclaration(methodFqn.substring(0, methodFqn.lastIndexOf('.')));
+                    if (currentTd != null && context.findMethodDeclaration(currentTd, methodName, true) != null) {
+                        System.out.println("DEBUG fallback found method in " + context.getFqn(currentTd));
+                        CompilationUnit cu = currentTd.getRoot() instanceof CompilationUnit ? (CompilationUnit) currentTd.getRoot() : null;
+                        List<String> values = resolveMethodReturnConstant(context.getFqn(currentTd), methodName, 0, new HashSet<>(), cu);
+                        System.out.println("DEBUG fallback resolveMethodReturnConstant returned: " + values);
+                        if (values != null && !values.isEmpty()) {
+                            polymorphicEvents.addAll(values);
+                            sourceMethod = methodFqn;
+                            break;
+                        }
                     }
                 }
             }
 
                 if (declaredType != null) {
-                    List<String> typesToInspect = new ArrayList<>();
-                    if ("inline-instantiation".equals(sourceMethod)) {
-                        typesToInspect.add(declaredType);
-                    } else {
-                        typesToInspect.add(declaredType);
-                        typesToInspect.addAll(context.getImplementations(declaredType));
-                    }
-                    
-                    for (String type : typesToInspect) {
-                        Set<String> visited = new HashSet<>();
-                        TypeDeclaration baseTd = context.getTypeDeclaration(type);
-                        CompilationUnit cuToUse = null;
-                        if (baseTd != null && baseTd.getRoot() instanceof CompilationUnit) {
-                            cuToUse = (CompilationUnit) baseTd.getRoot();
-                        } else {
-                            String firstPathMethod = path.get(0);
-                            String entryClassName = firstPathMethod.substring(0, firstPathMethod.lastIndexOf('.'));
-                            TypeDeclaration entryTd = context.getTypeDeclaration(entryClassName);
-                            if (entryTd != null && entryTd.getRoot() instanceof CompilationUnit) {
-                                cuToUse = (CompilationUnit) entryTd.getRoot();
-                            }
+                    List<String> enumValues = context.getEnumValues(declaredType);
+                    if (enumValues != null && !enumValues.isEmpty()) {
+                        for (String ev : enumValues) {
+                            polymorphicEvents.add(parseEnumSetElement(ev));
                         }
-                        List<String> constants = resolveMethodReturnConstant(type, methodName, 0, visited, cuToUse);
-                        for (String constant : constants) {
-                            if (!polymorphicEvents.contains(constant)) {
-                                polymorphicEvents.add(constant);
+                    } else {
+                        List<String> typesToInspect = new ArrayList<>();
+                        if ("inline-instantiation".equals(sourceMethod)) {
+                            typesToInspect.add(declaredType);
+                        } else {
+                            typesToInspect.add(declaredType);
+                            typesToInspect.addAll(context.getImplementations(declaredType));
+                        }
+                        
+                        for (String type : typesToInspect) {
+                            Set<String> visited = new HashSet<>();
+                            TypeDeclaration baseTd = context.getTypeDeclaration(type);
+                            CompilationUnit cuToUse = null;
+                            if (baseTd != null && baseTd.getRoot() instanceof CompilationUnit) {
+                                cuToUse = (CompilationUnit) baseTd.getRoot();
+                            } else {
+                                String firstPathMethod = path.get(0);
+                                String entryClassName = firstPathMethod.substring(0, firstPathMethod.lastIndexOf('.'));
+                                TypeDeclaration entryTd = context.getTypeDeclaration(entryClassName);
+                                if (entryTd != null && entryTd.getRoot() instanceof CompilationUnit) {
+                                    cuToUse = (CompilationUnit) entryTd.getRoot();
+                                }
+                            }
+                            List<String> constants = resolveMethodReturnConstant(type, methodName, 0, visited, cuToUse);
+                            for (String constant : constants) {
+                                if (!polymorphicEvents.contains(constant)) {
+                                    polymorphicEvents.add(constant);
+                                }
                             }
                         }
                     }
                 }
             }
-        // (e.g. it returned a field name like 'type', or nothing), we can scrape the resolvedValue string directly
-        // for string literals or enum-like constants.
+
+        
         boolean hasValidConstant = false;
         for (String ev : polymorphicEvents) {
             String val = ev.contains(".") ? ev.substring(ev.lastIndexOf('.') + 1) : ev;
@@ -318,36 +456,14 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
             }
         }
         
-        if (!hasValidConstant && resolvedValue.contains("(")) {
-             java.util.List<String> scraped = new java.util.ArrayList<>();
-             
-             // Extract "STRING_LITERALS"
-             java.util.regex.Matcher m1 = java.util.regex.Pattern.compile("\"([^\"]+)\"").matcher(resolvedValue);
-             while (m1.find()) {
-                 scraped.add(m1.group(1));
-             }
-             
-             // Extract ENUM_LIKE_CONSTANTS
-             java.util.regex.Matcher m2 = java.util.regex.Pattern.compile("\\b([A-Z_]{3,})\\b").matcher(resolvedValue);
-             while (m2.find()) {
-                 if (!scraped.contains(m2.group(1))) {
-                     scraped.add(m2.group(1));
-                 }
-             }
-             
-             if (!scraped.isEmpty()) {
-                 polymorphicEvents.clear();
-                 polymorphicEvents.addAll(scraped);
-             }
+        // As a fallback, attempt direct AST extraction (e.g. from MessageBuilder chains or inline constructor args)
+        if (!hasValidConstant && exprNode instanceof org.eclipse.jdt.core.dom.Expression) {
+            extractConstantsFromExpression((org.eclipse.jdt.core.dom.Expression) exprNode, polymorphicEvents);
         }
         
-        // Clean up any remaining invalid AST fallbacks (like 'type', 'event') if we found valid ones
-        if (polymorphicEvents.size() > 1) {
-            polymorphicEvents.removeIf(e -> {
-                String val = e.contains(".") ? e.substring(e.lastIndexOf('.') + 1) : e;
-                return !val.equals(val.toUpperCase()) || val.length() <= 2;
-            });
-        }
+        // The aggressive regex scraper has been completely removed to avoid false positives.
+        // We rely on precise AST traversal instead.
+        
         List<String> newPolyEvents = new ArrayList<>();
         for (String pe : polymorphicEvents) {
             List<String> resolved = resolveClassConstantReturns(pe, context, null);
@@ -359,6 +475,15 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
         }
         polymorphicEvents = newPolyEvents;
         
+        // Clean up any remaining invalid AST fallbacks (like 'type', 'event', or unresolved class names)
+        polymorphicEvents.removeIf(e -> {
+            if (e.contains(".")) return false; // If it's a fully qualified enum/constant, keep it
+            String val = e;
+            return !val.equals(val.toUpperCase()) || val.length() <= 1;
+        });
+        
+        polymorphicEvents = polymorphicEvents.stream().distinct().collect(java.util.stream.Collectors.toList());
+        
         if (!resolvedValue.equals(event) || !polymorphicEvents.isEmpty()) {
             return TriggerPoint.builder()
                     .event(resolvedValue)
@@ -392,37 +517,148 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
         return -1;
     }
 
-    protected String getVariableDeclaredType(String methodFqn, String varName) {
-        if (methodFqn == null || !methodFqn.contains(".")) return null;
-        String className = methodFqn.substring(0, methodFqn.lastIndexOf('.'));
-        String methodName = methodFqn.substring(methodFqn.lastIndexOf('.') + 1);
-        TypeDeclaration td = context.getTypeDeclaration(className);
-        if (td != null) {
-            MethodDeclaration md = context.findMethodDeclaration(td, methodName, true);
-            if (md != null) {
-                for (Object pObj : md.parameters()) {
-                    SingleVariableDeclaration svd = (SingleVariableDeclaration) pObj;
-                    if (svd.getName().getIdentifier().equals(varName)) {
-                        return svd.getType().toString();
+    public String getVariableDeclaredType(String methodFqn, String cleanFieldName) {
+        System.out.println("DEBUG getVariableDeclaredType called with: " + methodFqn + ", " + cleanFieldName);
+        if (methodFqn == null) return null;
+        int lastDot = methodFqn.lastIndexOf('.');
+        if (lastDot > 0) {
+            String fqn = methodFqn.substring(0, lastDot);
+            String methodName = methodFqn.substring(lastDot + 1);
+            TypeDeclaration td = context.getTypeDeclaration(fqn);
+            System.out.println("DEBUG getTypeDeclaration for " + fqn + " = " + (td != null));
+            if (td != null) {
+                MethodDeclaration md = context.findMethodDeclaration(td, methodName, false);
+                System.out.println("DEBUG findMethodDeclaration for " + methodName + " = " + (md != null));
+                if (md != null) {
+                    for (Object pObj : md.parameters()) {
+                        SingleVariableDeclaration svd = (SingleVariableDeclaration) pObj;
+                        if (svd.getName().getIdentifier().equals(cleanFieldName)) {
+                            return svd.getType().toString();
+                        }
                     }
-                }
-                final String[] foundType = new String[1];
-                if (md.getBody() != null) {
-                    md.getBody().accept(new ASTVisitor() {
+                    final String[] foundType = new String[1];
+                    if (md.getBody() != null) {
+                        System.out.println("DEBUG visiting body for " + cleanFieldName);
+                        md.getBody().accept(new ASTVisitor() {
                         @Override
                         public boolean visit(VariableDeclarationStatement node) {
                             for (Object fragObj : node.fragments()) {
                                 VariableDeclarationFragment frag = (VariableDeclarationFragment) fragObj;
-                                if (frag.getName().getIdentifier().equals(varName)) {
+                                if (frag.getName().getIdentifier().equals(cleanFieldName)) {
                                     foundType[0] = node.getType().toString();
                                 }
                             }
                             return super.visit(node);
                         }
+                        
+                        @Override
+                        public boolean visit(org.eclipse.jdt.core.dom.LambdaExpression node) {
+                            for (Object paramObj : node.parameters()) {
+                                org.eclipse.jdt.core.dom.VariableDeclaration param = (org.eclipse.jdt.core.dom.VariableDeclaration) paramObj;
+                                System.out.println("DEBUG visiting lambda param: " + param.getName().getIdentifier());
+                                if (param.getName().getIdentifier().equals(cleanFieldName)) {
+                                    System.out.println("DEBUG found lambda param: " + cleanFieldName);
+                                    if (param instanceof SingleVariableDeclaration svd && svd.getType() != null) {
+                                        foundType[0] = svd.getType().toString();
+                                        System.out.println("DEBUG lambda explicit type: " + foundType[0]);
+                                        return false;
+                                    }
+                                    
+                                    org.eclipse.jdt.core.dom.ASTNode parent = node.getParent();
+                                    if (parent instanceof org.eclipse.jdt.core.dom.MethodInvocation mi) {
+                                        org.eclipse.jdt.core.dom.Expression caller = mi.getExpression();
+                                        
+                                        // Phase 6: Stream API chains
+                                        boolean hasMap = false;
+                                        while (caller instanceof org.eclipse.jdt.core.dom.MethodInvocation chainMi) {
+                                            String mName = chainMi.getName().getIdentifier();
+                                            if (mName.equals("map") || mName.equals("flatMap")) {
+                                                hasMap = true;
+                                                // Extract return type of the map lambda
+                                                if (chainMi.arguments().size() == 1 && chainMi.arguments().get(0) instanceof org.eclipse.jdt.core.dom.LambdaExpression lambda) {
+                                                    if (lambda.getBody() instanceof org.eclipse.jdt.core.dom.MethodInvocation mapMi) {
+                                                        // Just a heuristic for now: we use the method's return type if we could resolve it, but since we can't easily,
+                                                        // we'll try to find the type of the caller and look up the method.
+                                                        org.eclipse.jdt.core.dom.Expression mapCaller = mapMi.getExpression();
+                                                        if (mapCaller instanceof org.eclipse.jdt.core.dom.SimpleName mapSn) {
+                                                            String mapCallerType = getVariableDeclaredType(methodFqn, mapSn.getIdentifier());
+                                                            if (mapCallerType != null) {
+                                                                TypeDeclaration currentTd = context.getTypeDeclaration(methodFqn.substring(0, methodFqn.lastIndexOf('.')));
+                                                                CompilationUnit cu = currentTd != null && currentTd.getRoot() instanceof CompilationUnit ? (CompilationUnit) currentTd.getRoot() : null;
+                                                                TypeDeclaration td = context.getTypeDeclaration(mapCallerType, cu);
+                                                                if (td != null) {
+                                                                    MethodDeclaration mapMd = context.findMethodDeclaration(td, mapMi.getName().getIdentifier(), true);
+                                                                    if (mapMd != null && mapMd.getReturnType2() != null) {
+                                                                        foundType[0] = mapMd.getReturnType2().toString();
+                                                                        return false;
+                                                                    }
+                                                                }
+                                                            }
+                                                        }
+                                                    }
+                                                }
+                                            }
+                                            if (mName.equals("stream") || mName.equals("filter") || mName.equals("map") || 
+                                                mName.equals("flatMap") || mName.equals("peek") || mName.equals("distinct") || 
+                                                mName.equals("sorted") || mName.equals("limit") || mName.equals("skip")) {
+                                                caller = chainMi.getExpression();
+                                            } else {
+                                                break;
+                                            }
+                                        }
+                                        
+                                        if (!hasMap) {
+                                            if (caller instanceof org.eclipse.jdt.core.dom.SimpleName callerSn) {
+                                                String callerName = callerSn.getIdentifier();
+                                                System.out.println("DEBUG callerName: " + callerName + " cleanFieldName: " + cleanFieldName);
+                                                if (!callerName.equals(cleanFieldName)) {
+                                                    String callerType = getVariableDeclaredType(methodFqn, callerName);
+                                                    System.out.println("DEBUG callerType for " + callerName + " = " + callerType);
+                                                    if (callerType != null && callerType.contains("<")) {
+                                                        int start = callerType.indexOf('<');
+                                                        int end = callerType.lastIndexOf('>');
+                                                        if (start >= 0 && end > start) {
+                                                            foundType[0] = callerType.substring(start + 1, end);
+                                                            System.out.println("DEBUG foundType[0]: " + foundType[0]);
+                                                            return false;
+                                                        }
+                                                    }
+                                                }
+                                            } else if (caller instanceof org.eclipse.jdt.core.dom.FieldAccess fa) {
+                                                String callerName = fa.getName().getIdentifier();
+                                                if (!callerName.equals(cleanFieldName)) {
+                                                    String callerType = getVariableDeclaredType(methodFqn, callerName);
+                                                    if (callerType != null && callerType.contains("<")) {
+                                                        int start = callerType.indexOf('<');
+                                                        int end = callerType.lastIndexOf('>');
+                                                        if (start >= 0 && end > start) {
+                                                            foundType[0] = callerType.substring(start + 1, end);
+                                                            return false;
+                                                        }
+                                                    }
+                                                }
+                                            }
+                                        }
+                                    }
+                                }
+                            }
+                            return super.visit(node);
+                        }
                     });
                 }
-                return foundType[0];
+                if (foundType[0] != null) return foundType[0];
             }
+            
+            // Fallback to fields
+            for (org.eclipse.jdt.core.dom.FieldDeclaration fd : td.getFields()) {
+                for (Object fragObj : fd.fragments()) {
+                    org.eclipse.jdt.core.dom.VariableDeclarationFragment frag = (org.eclipse.jdt.core.dom.VariableDeclarationFragment) fragObj;
+                    if (frag.getName().getIdentifier().equals(cleanFieldName)) {
+                        return fd.getType().toString();
+                    }
+                }
+            }
+        }
         }
         return null;
     }
@@ -507,15 +743,11 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
                                         List<String> consts = traceFieldInConstructors(td, sn.getIdentifier(), context, visited);
                                         if (!consts.isEmpty()) {
                                             constants.addAll(consts);
-                                        } else {
-                                            constants.add(sn.toString());
                                         }
                                     } else if (tracedRetExpr instanceof org.eclipse.jdt.core.dom.FieldAccess fa) {
                                         List<String> consts = traceFieldInConstructors(td, fa.getName().getIdentifier(), context, visited);
                                         if (!consts.isEmpty()) {
                                             constants.addAll(consts);
-                                        } else {
-                                            constants.add(fa.getName().getIdentifier());
                                         }
                                     }
                                 }
@@ -524,6 +756,14 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
                         return super.visit(node);
                     }
                 });
+            } else {
+                List<String> impls = context.getImplementations(className);
+                if (impls != null) {
+                    for (String implName : impls) {
+                        List<String> delegationResult = resolveMethodReturnConstant(implName, methodName, depth + 1, visited, contextCu);
+                        constants.addAll(delegationResult);
+                    }
+                }
             }
         }
         visited.remove(fqn);
@@ -587,9 +827,38 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
                     return super.visit(rs);
                 }
             });
+        } else if (expr instanceof org.eclipse.jdt.core.dom.ArrayAccess aa) {
+            extractConstantsFromExpression(aa.getArray(), constants);
+        } else if (expr instanceof org.eclipse.jdt.core.dom.ArrayCreation ac && ac.getInitializer() != null) {
+            for (Object expObj : ac.getInitializer().expressions()) {
+                extractConstantsFromArgument((org.eclipse.jdt.core.dom.Expression) expObj, constants);
+            }
+        } else if (expr instanceof org.eclipse.jdt.core.dom.ArrayInitializer ai) {
+            for (Object expObj : ai.expressions()) {
+                extractConstantsFromArgument((org.eclipse.jdt.core.dom.Expression) expObj, constants);
+            }
+        } else if (expr instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cic) {
+            for (Object argObj : cic.arguments()) {
+                extractConstantsFromArgument((org.eclipse.jdt.core.dom.Expression) argObj, constants);
+            }
         } else if (expr instanceof org.eclipse.jdt.core.dom.MethodInvocation mi) {
             String methodName = mi.getName().getIdentifier();
             
+            // Phase 7: List.get(0) indexing
+            if (methodName.equals("get") && mi.arguments().size() == 1 && mi.getExpression() != null) {
+                extractConstantsFromExpression(mi.getExpression(), constants);
+                return;
+            }
+            // Phase 7: List.of("A", "B") or Arrays.asList("A", "B")
+            if ((methodName.equals("of") || methodName.equals("asList")) && mi.getExpression() instanceof org.eclipse.jdt.core.dom.SimpleName) {
+                for (Object argObj : mi.arguments()) {
+                    extractConstantsFromExpression((org.eclipse.jdt.core.dom.Expression) argObj, constants);
+                }
+                return;
+            }
+            
+
+            
             // 1. Local setter tracking
             if ((methodName.startsWith("get") || methodName.equals("type") || methodName.equals("event")) && mi.getExpression() instanceof org.eclipse.jdt.core.dom.SimpleName sn) {
                 String varName = sn.getIdentifier();
@@ -631,7 +900,59 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
                 }
             }
             
-            // 2. Delegate to method return analysis
+            // 2. Inline Instantiation Getter (e.g. new Event(CONSTANT).getType())
+            if (mi.getExpression() instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cic) {
+                if (cic.getAnonymousClassDeclaration() != null) {
+                    for (Object declObj : cic.getAnonymousClassDeclaration().bodyDeclarations()) {
+                        if (declObj instanceof org.eclipse.jdt.core.dom.MethodDeclaration mdecl) {
+                            if (mdecl.getName().getIdentifier().equals(methodName) && mdecl.getBody() != null) {
+                                mdecl.getBody().accept(new org.eclipse.jdt.core.dom.ASTVisitor() {
+                                    @Override
+                                    public boolean visit(org.eclipse.jdt.core.dom.ReturnStatement rs) {
+                                        if (rs.getExpression() != null) {
+                                            extractConstantsFromExpression(rs.getExpression(), constants);
+                                        }
+                                        return super.visit(rs);
+                                    }
+                                });
+                            }
+                        }
+                    }
+                } else {
+                    boolean handledByLombok = false;
+                    if (methodName.startsWith("get") && methodName.length() > 3) {
+                        String typeName = click.kamil.springstatemachineexporter.ast.common.AstUtils.extractSimpleTypeName(cic.getType());
+                        TypeDeclaration typeDecl = context.getTypeDeclaration(typeName);
+                        if (typeDecl != null) {
+                            String fieldName = Character.toLowerCase(methodName.charAt(3)) + methodName.substring(4);
+                            int fieldIndex = findConstructorArgumentIndexForLombokField(typeDecl, fieldName);
+                            if (fieldIndex >= 0 && fieldIndex < cic.arguments().size()) {
+                                extractConstantsFromArgument((org.eclipse.jdt.core.dom.Expression) cic.arguments().get(fieldIndex), constants);
+                                handledByLombok = true;
+                            }
+                        }
+                    }
+                    if (!handledByLombok) {
+                        for (Object argObj : cic.arguments()) {
+                            extractConstantsFromArgument((org.eclipse.jdt.core.dom.Expression) argObj, constants);
+                        }
+                    }
+                }
+            }
+            
+            // 3. Builder Pattern (e.g. MessageBuilder.withPayload(...).setHeader("event", CONSTANT).build())
+            org.eclipse.jdt.core.dom.Expression currentMi = mi;
+            while (currentMi instanceof org.eclipse.jdt.core.dom.MethodInvocation chainMi) {
+                String chainName = chainMi.getName().getIdentifier();
+                if (chainName.equals("setHeader") && chainMi.arguments().size() == 2) {
+                    extractConstantsFromExpression((org.eclipse.jdt.core.dom.Expression) chainMi.arguments().get(1), constants);
+                } else if ((chainName.equalsIgnoreCase("event") || chainName.equalsIgnoreCase("type") || chainName.equalsIgnoreCase("eventType")) && chainMi.arguments().size() == 1) {
+                    extractConstantsFromExpression((org.eclipse.jdt.core.dom.Expression) chainMi.arguments().get(0), constants);
+                }
+                currentMi = chainMi.getExpression();
+            }
+            
+            // 4. Delegate to method return analysis
             TypeDeclaration td = findEnclosingType(mi);
             if (td != null && (mi.getExpression() == null || mi.getExpression() instanceof org.eclipse.jdt.core.dom.ThisExpression)) {
                 List<String> values = resolveMethodReturnConstant(context.getFqn(td), methodName, 0, new java.util.HashSet<>(), null);
@@ -640,6 +961,72 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
         }
     }
 
+    private int findConstructorArgumentIndexForLombokField(TypeDeclaration td, String fieldName) {
+        boolean isAllArgsConstructor = false;
+        boolean isRequiredArgsConstructor = false;
+        boolean isData = false;
+        boolean isValue = false;
+        
+        for (Object modObj : td.modifiers()) {
+            if (modObj instanceof org.eclipse.jdt.core.dom.MarkerAnnotation ma) {
+                String name = ma.getTypeName().getFullyQualifiedName();
+                if (name.equals("AllArgsConstructor") || name.equals("lombok.AllArgsConstructor")) isAllArgsConstructor = true;
+                if (name.equals("RequiredArgsConstructor") || name.equals("lombok.RequiredArgsConstructor")) isRequiredArgsConstructor = true;
+                if (name.equals("Data") || name.equals("lombok.Data")) isData = true;
+                if (name.equals("Value") || name.equals("lombok.Value")) isValue = true;
+            } else if (modObj instanceof org.eclipse.jdt.core.dom.NormalAnnotation na) {
+                String name = na.getTypeName().getFullyQualifiedName();
+                if (name.equals("AllArgsConstructor") || name.equals("lombok.AllArgsConstructor")) isAllArgsConstructor = true;
+                if (name.equals("RequiredArgsConstructor") || name.equals("lombok.RequiredArgsConstructor")) isRequiredArgsConstructor = true;
+                if (name.equals("Data") || name.equals("lombok.Data")) isData = true;
+                if (name.equals("Value") || name.equals("lombok.Value")) isValue = true;
+            }
+        }
+        
+        if (!isAllArgsConstructor && !isRequiredArgsConstructor && !isData && !isValue) {
+            return -1;
+        }
+        
+        int index = 0;
+        for (org.eclipse.jdt.core.dom.FieldDeclaration fd : td.getFields()) {
+            boolean isStatic = false;
+            boolean isFinal = false;
+            boolean hasNonNull = false;
+            for (Object modObj : fd.modifiers()) {
+                if (modObj instanceof org.eclipse.jdt.core.dom.Modifier mod) {
+                    if (mod.isStatic()) isStatic = true;
+                    if (mod.isFinal()) isFinal = true;
+                } else if (modObj instanceof org.eclipse.jdt.core.dom.MarkerAnnotation ma) {
+                    if (ma.getTypeName().getFullyQualifiedName().endsWith("NonNull")) hasNonNull = true;
+                }
+            }
+            if (isStatic) continue;
+            
+            if (isRequiredArgsConstructor && !isAllArgsConstructor && !isFinal && !hasNonNull) continue;
+            if (isData && !isAllArgsConstructor && !isFinal && !hasNonNull) continue;
+            
+            for (Object fragObj : fd.fragments()) {
+                org.eclipse.jdt.core.dom.VariableDeclarationFragment frag = (org.eclipse.jdt.core.dom.VariableDeclarationFragment) fragObj;
+                if (frag.getName().getIdentifier().equals(fieldName)) {
+                    return index;
+                }
+                index++;
+            }
+        }
+        return -1;
+    }
+
+    private void extractConstantsFromArgument(org.eclipse.jdt.core.dom.Expression argObj, List<String> constants) {
+        if (argObj instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation innerCic) {
+            String typeName = click.kamil.springstatemachineexporter.ast.common.AstUtils.extractSimpleTypeName(innerCic.getType());
+            if ("String".equals(typeName)) {
+                extractConstantsFromExpression(argObj, constants);
+            }
+        } else {
+            extractConstantsFromExpression(argObj, constants);
+        }
+    }
+
     protected org.eclipse.jdt.core.dom.Block findEnclosingBlock(org.eclipse.jdt.core.dom.ASTNode node) {
         org.eclipse.jdt.core.dom.ASTNode parent = node.getParent();
         while (parent != null && !(parent instanceof org.eclipse.jdt.core.dom.Block)) {
@@ -656,46 +1043,105 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
         if (td != null) {
             MethodDeclaration md = context.findMethodDeclaration(td, methodName, true);
             if (md != null && md.getBody() != null) {
-                final Expression[] initializer = new Expression[1];
+                List<Expression> initializers = new ArrayList<>();
                 md.getBody().accept(new ASTVisitor() {
                     @Override
                     public boolean visit(VariableDeclarationFragment node) {
                         if (node.getName().getIdentifier().equals(varName) && node.getInitializer() != null) {
-                            initializer[0] = node.getInitializer();
+                            initializers.add(node.getInitializer());
                         }
                         return super.visit(node);
                     }
                     @Override
                     public boolean visit(Assignment node) {
                         if (node.getLeftHandSide() instanceof SimpleName asn && asn.getIdentifier().equals(varName)) {
-                            initializer[0] = node.getRightHandSide();
+                            initializers.add(node.getRightHandSide());
                         }
                         return super.visit(node);
                     }
                 });
                 
-                if (initializer[0] != null) {
-                    Expression expr = traceVariable(initializer[0]);
-                    if (expr instanceof MethodInvocation mi) {
-                        // Unwrapper logic: If wrapper method is called, extract its arguments recursively
-                        Expression innerMost = unwrapMethodInvocation(mi, 0);
-                        if (innerMost instanceof MethodInvocation innerMi) {
-                            if (innerMi.getExpression() instanceof SimpleName sn) {
-                                return sn.getIdentifier() + "." + innerMi.getName().getIdentifier() + "()";
+                if (!initializers.isEmpty()) {
+                    List<String> stringified = new ArrayList<>();
+                    for (Expression expr : initializers) {
+                        Expression traced = traceVariable(expr);
+                        if (traced instanceof org.eclipse.jdt.core.dom.MethodInvocation mi) {
+                            Expression innerMost = unwrapMethodInvocation(mi, 0);
+                            if (innerMost instanceof org.eclipse.jdt.core.dom.MethodInvocation innerMi) {
+                                if (innerMi.getExpression() instanceof SimpleName sn) {
+                                    stringified.add(sn.getIdentifier() + "." + innerMi.getName().getIdentifier() + "()");
+                                } else {
+                                    stringified.add(innerMi.getName().getIdentifier() + "()");
+                                }
+                            } else if (innerMost instanceof SimpleName sn) {
+                                stringified.add(sn.getIdentifier());
+                            } else {
+                                stringified.add(innerMost.toString());
                             }
-                            return innerMi.getName().getIdentifier() + "()";
+                        } else if (traced instanceof SimpleName sn) {
+                            stringified.add(sn.getIdentifier());
+                        } else if (traced instanceof org.eclipse.jdt.core.dom.ArrayInitializer) {
+                            stringified.add("new Object[]" + traced.toString());
+                        } else {
+                            stringified.add(traced.toString());
                         }
-                        if (innerMost instanceof SimpleName sn) {
-                            return sn.getIdentifier();
-                        }
-                        return innerMost.toString();
                     }
-                    if (expr instanceof SimpleName sn) {
-                        return sn.getIdentifier();
+                    if (stringified.size() == 1) return stringified.get(0);
+                    
+                    StringBuilder sb = new StringBuilder();
+                    for (int i = 0; i < stringified.size() - 1; i++) {
+                        sb.append("true ? ").append(stringified.get(i)).append(" : ");
                     }
-                    return expr.toString();
+                    sb.append(stringified.get(stringified.size() - 1));
+                    return sb.toString();
                 }
             }
+            
+            // If local variable not found, check field assignments
+            String cleanFieldName = varName.startsWith("this.") ? varName.substring(5) : varName;
+            final Expression[] fieldInitializer = new Expression[1];
+            ASTVisitor fieldVisitor = new ASTVisitor() {
+                @Override
+                public boolean visit(VariableDeclarationFragment node) {
+                    if (node.getName().getIdentifier().equals(cleanFieldName) && node.getInitializer() != null) {
+                        fieldInitializer[0] = node.getInitializer();
+                    }
+                    return super.visit(node);
+                }
+                @Override
+                public boolean visit(Assignment node) {
+                    Expression left = node.getLeftHandSide();
+                    if ((left instanceof SimpleName && ((SimpleName) left).getIdentifier().equals(cleanFieldName)) ||
+                        (left instanceof FieldAccess && ((FieldAccess) left).getName().getIdentifier().equals(cleanFieldName))) {
+                        fieldInitializer[0] = node.getRightHandSide();
+                    }
+                    return super.visit(node);
+                }
+            };
+            
+            for (org.eclipse.jdt.core.dom.FieldDeclaration fd : td.getFields()) {
+                for (Object fragObj : fd.fragments()) {
+                    VariableDeclarationFragment frag = (VariableDeclarationFragment) fragObj;
+                    if (frag.getName().getIdentifier().equals(cleanFieldName) && frag.getInitializer() != null) {
+                        fieldInitializer[0] = frag.getInitializer();
+                    }
+                }
+            }
+            if (fieldInitializer[0] != null) return fieldInitializer[0].toString();
+
+            for (MethodDeclaration classMd : td.getMethods()) {
+                if (classMd.isConstructor() && classMd.getBody() != null) {
+                    classMd.getBody().accept(fieldVisitor);
+                }
+            }
+            if (fieldInitializer[0] != null) return fieldInitializer[0].toString();
+            
+            for (MethodDeclaration classMd : td.getMethods()) {
+                if (!classMd.isConstructor() && classMd.getBody() != null) {
+                    classMd.getBody().accept(fieldVisitor);
+                }
+            }
+            if (fieldInitializer[0] != null) return fieldInitializer[0].toString();
         }
         return null;
     }
@@ -746,11 +1192,36 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
         return null;
     }
 
-    protected Expression unwrapMethodInvocation(MethodInvocation mi, int depth) {
+    protected Expression unwrapMethodInvocation(org.eclipse.jdt.core.dom.MethodInvocation mi, int depth) {
         if (depth > 5) return mi;
+        // Do not unwrap if called on an object (e.g. mapper.toEvent)
+        // Exceptions: Optional.of, Optional.ofNullable, Stream, etc.
+        if (mi.getExpression() != null) {
+            String exprStr = mi.getExpression().toString();
+            if (!exprStr.equals("Optional") && !exprStr.equals("Stream") && !exprStr.equals("List") && !exprStr.equals("Set") && !exprStr.equals("Arrays") && !exprStr.equals("Objects")) {
+                return mi;
+            }
+        }
+        
         if (!mi.arguments().isEmpty()) {
+            String mName = mi.getName().getIdentifier();
+            String lowerName = mName.toLowerCase();
+            
+            // Do not unwrap methods that explicitly convert, map, parse, or create
+            if (lowerName.startsWith("map") || lowerName.startsWith("parse") || 
+                lowerName.startsWith("convert") || lowerName.startsWith("to") || 
+                lowerName.startsWith("resolve") || lowerName.startsWith("build") || 
+                lowerName.startsWith("create") || lowerName.startsWith("from") ||
+                lowerName.startsWith("transform") || lowerName.startsWith("translate") ||
+                lowerName.startsWith("derive") || lowerName.startsWith("determine") ||
+                lowerName.startsWith("calculate") || lowerName.startsWith("decode") ||
+                lowerName.startsWith("extract") || lowerName.startsWith("get") ||
+                lowerName.startsWith("find")) {
+                return mi;
+            }
+            
             Expression arg = (Expression) mi.arguments().get(0);
-            if (arg instanceof MethodInvocation innerMi) {
+            if (arg instanceof org.eclipse.jdt.core.dom.MethodInvocation innerMi) {
                 return unwrapMethodInvocation(innerMi, depth + 1);
             }
             return arg;
@@ -792,9 +1263,22 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
     }
 
     protected String[] extractMethodSuffix(String paramName, String currentSuffix) {
-        int dotIndex = paramName.indexOf('.');
-        if (dotIndex > 0 && dotIndex + 1 < paramName.length() && Character.isLowerCase(paramName.charAt(dotIndex + 1))) {
-            return new String[] { paramName.substring(0, dotIndex), paramName.substring(dotIndex) + currentSuffix };
+        if (paramName != null && !paramName.contains(" ") && !paramName.startsWith("new ")) {
+            int bracketIndex = paramName.indexOf('[');
+            int dotIndex = paramName.indexOf('.');
+            
+            if (bracketIndex > 0 && (dotIndex == -1 || bracketIndex < dotIndex)) {
+                return new String[] { paramName.substring(0, bracketIndex), paramName.substring(bracketIndex) + currentSuffix };
+            } else if (dotIndex > 0) {
+                if (paramName.startsWith("this.")) {
+                    int nextDotIndex = paramName.indexOf('.', 5);
+                    if (nextDotIndex > 0) {
+                        return new String[] { paramName.substring(0, nextDotIndex), paramName.substring(nextDotIndex) + currentSuffix };
+                    }
+                    return new String[] { paramName, currentSuffix };
+                }
+                return new String[] { paramName.substring(0, dotIndex), paramName.substring(dotIndex) + currentSuffix };
+            }
         }
         return new String[] { paramName, currentSuffix };
     }
@@ -849,36 +1333,88 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
         return (TypeDeclaration) parent;
     }
     protected Expression traceVariable(Expression expr) {
-        List<Expression> all = traceVariableAll(expr);
+        List<Expression> all = traceVariableAll(expr, new HashSet<>());
         return all.isEmpty() ? expr : all.get(all.size() - 1);
     }
 
     protected List<Expression> traceVariableAll(Expression expr) {
+        return traceVariableAll(expr, new HashSet<>());
+    }
+
+    protected List<Expression> traceVariableAll(Expression expr, Set<String> visitedVariables) {
         List<Expression> results = new ArrayList<>();
         if (expr instanceof SimpleName sn) {
             String varName = sn.getIdentifier();
+            if (!visitedVariables.add(varName)) {
+                return results; // Break infinite loop
+            }
             MethodDeclaration enclosingMethod = findEnclosingMethod(expr);
             if (enclosingMethod != null) {
                 enclosingMethod.accept(new ASTVisitor() {
                     @Override
                     public boolean visit(VariableDeclarationFragment node) {
                         if (node.getName().getIdentifier().equals(varName) && node.getInitializer() != null) {
-                            results.addAll(traceVariableAll(node.getInitializer()));
+                            results.addAll(traceVariableAll(node.getInitializer(), visitedVariables));
                         }
                         return super.visit(node);
                     }
                     @Override
                     public boolean visit(Assignment node) {
                         if (node.getLeftHandSide() instanceof SimpleName asn && asn.getIdentifier().equals(varName)) {
-                            results.addAll(traceVariableAll(node.getRightHandSide()));
+                            results.addAll(traceVariableAll(node.getRightHandSide(), visitedVariables));
                         }
                         return super.visit(node);
                     }
                 });
                 if (!results.isEmpty()) {
+                    visitedVariables.remove(varName);
                     return results;
                 }
+                
+                // Tracing parameter callers (Inter-procedural within the same class)
+                for (Object paramObj : enclosingMethod.parameters()) {
+                    org.eclipse.jdt.core.dom.SingleVariableDeclaration param = (org.eclipse.jdt.core.dom.SingleVariableDeclaration) paramObj;
+                    if (param.getName().getIdentifier().equals(varName)) {
+                        int paramIndex = enclosingMethod.parameters().indexOf(param);
+                        TypeDeclaration enclosingType = findEnclosingType(enclosingMethod);
+                        if (enclosingType != null) {
+                            String mName = enclosingMethod.getName().getIdentifier();
+                            List<Expression> callerExprs = new ArrayList<>();
+                            enclosingType.accept(new org.eclipse.jdt.core.dom.ASTVisitor() {
+                                @Override
+                                public boolean visit(org.eclipse.jdt.core.dom.MethodInvocation node) {
+                                    if (node.getName().getIdentifier().equals(mName) && node.arguments().size() > paramIndex) {
+                                        callerExprs.addAll(traceVariableAll((Expression) node.arguments().get(paramIndex), visitedVariables));
+                                    }
+                                    return super.visit(node);
+                                }
+                                @Override
+                                public boolean visit(org.eclipse.jdt.core.dom.ExpressionMethodReference node) {
+                                    if (node.getName().getIdentifier().equals(mName)) {
+                                        if (node.getParent() instanceof org.eclipse.jdt.core.dom.MethodInvocation parentMi) {
+                                            if (click.kamil.springstatemachineexporter.ast.common.AstUtils.isFunctionalCollectionMethod(parentMi)) {
+                                                callerExprs.addAll(traceVariableAll(parentMi.getExpression(), visitedVariables));
+                                            } else {
+                                                for (Object arg : parentMi.arguments()) {
+                                                    if (arg != node) {
+                                                        callerExprs.addAll(traceVariableAll((Expression) arg, visitedVariables));
+                                                    }
+                                                }
+                                            }
+                                        }
+                                    }
+                                    return super.visit(node);
+                                }
+                            });
+                            if (!callerExprs.isEmpty()) {
+                                visitedVariables.remove(varName);
+                                return callerExprs;
+                            }
+                        }
+                    }
+                }
             }
+            visitedVariables.remove(varName);
         }
         results.add(expr);
         return results;

state_machine_exporter/src/main/java/click/kamil/springstatemachineexporter/analysis/service/GenericEventDetector.java

@@ -265,8 +265,26 @@ public class GenericEventDetector {
                 return getSimpleNameString(right);
             }
         } else if (expr instanceof MethodInvocation mi) {
-            if ("equals".equals(mi.getName().getIdentifier()) && !mi.arguments().isEmpty()) {
-                return getSimpleNameString((Expression) mi.arguments().get(0));
+            String methodName = mi.getName().getIdentifier();
+            if (("equals".equals(methodName) || "equalsIgnoreCase".equals(methodName)) && !mi.arguments().isEmpty()) {
+                Expression receiver = mi.getExpression();
+                Expression arg = (Expression) mi.arguments().get(0);
+                
+                // If receiver is null (e.g., implicit this), fall back to arg
+                if (receiver == null) {
+                    return getSimpleNameString(arg);
+                }
+                
+                // Prioritize the one that looks like a constant (QualifiedName or StringLiteral)
+                if (receiver instanceof QualifiedName || receiver instanceof StringLiteral || receiver instanceof FieldAccess) {
+                    return getSimpleNameString(receiver);
+                }
+                if (arg instanceof QualifiedName || arg instanceof StringLiteral || arg instanceof FieldAccess) {
+                    return getSimpleNameString(arg);
+                }
+                
+                // Fallback to receiver
+                return getSimpleNameString(receiver);
             }
         }
         return null;

state_machine_exporter/src/main/java/click/kamil/springstatemachineexporter/analysis/service/HeuristicCallGraphEngine.java

@@ -45,7 +45,13 @@ public class HeuristicCallGraphEngine extends AbstractCallGraphEngine {
                                         if (td2 != null) {
                                             String refMethod = resolveMethodInType(td2, emr.getName().getIdentifier());
                                             if (refMethod != null) {
-                                                graph.computeIfAbsent(currentMethodFqn, k -> new ArrayList<>()).add(new CallEdge(refMethod, args));
+                                                List<String> implicitArgs = new ArrayList<>();
+                                                if (click.kamil.springstatemachineexporter.ast.common.AstUtils.isFunctionalCollectionMethod(node)) {
+                                                    implicitArgs.add(node.getExpression().toString());
+                                                } else {
+                                                    implicitArgs.addAll(args);
+                                                }
+                                                graph.computeIfAbsent(currentMethodFqn, k -> new ArrayList<>()).add(new CallEdge(refMethod, implicitArgs));
                                             }
                                         }
                                     } else {
@@ -58,7 +64,13 @@ public class HeuristicCallGraphEngine extends AbstractCallGraphEngine {
                                         }
                                         if (fallbackTypeFqn != null) {
                                             String calledMethod = fallbackTypeFqn + "." + emr.getName().getIdentifier();
-                                            graph.computeIfAbsent(currentMethodFqn, k -> new ArrayList<>()).add(new CallEdge(calledMethod, args));
+                                            List<String> implicitArgs = new ArrayList<>();
+                                            if (click.kamil.springstatemachineexporter.ast.common.AstUtils.isFunctionalCollectionMethod(node)) {
+                                                implicitArgs.add(node.getExpression().toString());
+                                            } else {
+                                                implicitArgs.addAll(args);
+                                            }
+                                            graph.computeIfAbsent(currentMethodFqn, k -> new ArrayList<>()).add(new CallEdge(calledMethod, implicitArgs));
                                             
                                             List<String> impls = context.getImplementations(fallbackTypeFqn);
                                             for (String impl : impls) {
@@ -141,11 +153,7 @@ public class HeuristicCallGraphEngine extends AbstractCallGraphEngine {
                 }
             }
             
-            // Extract from constructor args (e.g., new CustomMessage(OrderEvent.PROCESS, ...))
-            Expression tracedExpr = traceVariable(expr);
-            if (tracedExpr instanceof QualifiedName || tracedExpr instanceof ClassInstanceCreation || tracedExpr instanceof StringLiteral || tracedExpr instanceof NumberLiteral) {
-                expr = tracedExpr; // Only accept trace if it resolves to a pure constant/primitive/constructor
-            }
+            // Removed eager tracing here to allow dynamic tracing in resolveTriggerPointParameters
 
             if (expr instanceof ClassInstanceCreation cic && !cic.arguments().isEmpty()) {
                 Expression firstArg = (Expression) cic.arguments().get(0);
@@ -161,6 +169,7 @@ public class HeuristicCallGraphEngine extends AbstractCallGraphEngine {
             }
             args.add(val);
         }
+        System.out.println("DEBUG resolveArguments: " + args);
         return args;
     }
 

state_machine_exporter/src/main/java/click/kamil/springstatemachineexporter/analysis/service/JdtCallGraphEngine.java

@@ -49,7 +49,13 @@ public class JdtCallGraphEngine extends AbstractCallGraphEngine {
                                         if (td2 != null) {
                                             String refMethod = resolveMethodInType(td2, emr.getName().getIdentifier());
                                             if (refMethod != null) {
-                                                graph.computeIfAbsent(currentMethodFqn, k -> new ArrayList<>()).add(new CallEdge(refMethod, args));
+                                                List<String> implicitArgs = new ArrayList<>();
+                                                if (click.kamil.springstatemachineexporter.ast.common.AstUtils.isFunctionalCollectionMethod(node)) {
+                                                    implicitArgs.add(node.getExpression().toString());
+                                                } else {
+                                                    implicitArgs.addAll(args);
+                                                }
+                                                graph.computeIfAbsent(currentMethodFqn, k -> new ArrayList<>()).add(new CallEdge(refMethod, implicitArgs));
                                             }
                                         }
                                     } else {
@@ -62,7 +68,13 @@ public class JdtCallGraphEngine extends AbstractCallGraphEngine {
                                         }
                                         if (fallbackTypeFqn != null) {
                                             String calledMethod = fallbackTypeFqn + "." + emr.getName().getIdentifier();
-                                            graph.computeIfAbsent(currentMethodFqn, k -> new ArrayList<>()).add(new CallEdge(calledMethod, args));
+                                            List<String> implicitArgs = new ArrayList<>();
+                                            if (click.kamil.springstatemachineexporter.ast.common.AstUtils.isFunctionalCollectionMethod(node)) {
+                                                implicitArgs.add(node.getExpression().toString());
+                                            } else {
+                                                implicitArgs.addAll(args);
+                                            }
+                                            graph.computeIfAbsent(currentMethodFqn, k -> new ArrayList<>()).add(new CallEdge(calledMethod, implicitArgs));
                                             
                                             List<String> impls = context.getImplementations(fallbackTypeFqn);
                                             for (String impl : impls) {
@@ -146,6 +158,11 @@ public class JdtCallGraphEngine extends AbstractCallGraphEngine {
             }
             
             // Extract from constructor args (e.g., new CustomMessage(OrderEvent.PROCESS, ...))
+            Expression unwrappedBuilder = unwrapMessageBuilder(expr);
+            if (unwrappedBuilder != expr) {
+                expr = unwrappedBuilder;
+            }
+            
             Expression tracedExpr = traceVariable(expr);
             if (tracedExpr instanceof QualifiedName || tracedExpr instanceof ClassInstanceCreation || tracedExpr instanceof StringLiteral || tracedExpr instanceof NumberLiteral) {
                 expr = tracedExpr; // Only accept trace if it resolves to a pure constant/primitive/constructor
@@ -357,4 +374,22 @@ public class JdtCallGraphEngine extends AbstractCallGraphEngine {
         return null;
     }
 
+    private Expression unwrapMessageBuilder(Expression expr) {
+        if (expr instanceof MethodInvocation mi) {
+            MethodInvocation current = mi;
+            while (current != null) {
+                String name = current.getName().getIdentifier();
+                if (("withPayload".equals(name) || "just".equals(name)) && !current.arguments().isEmpty()) {
+                    return (Expression) current.arguments().get(0);
+                }
+                Expression receiver = current.getExpression();
+                if (receiver instanceof MethodInvocation nextMi) {
+                    current = nextMi;
+                } else {
+                    current = null;
+                }
+            }
+        }
+        return expr;
     }
+}

state_machine_exporter/src/main/java/click/kamil/springstatemachineexporter/ast/common/AstUtils.java

@@ -36,4 +36,62 @@ public final class AstUtils {
             return type.toString(); // fallback
         }
     }
+
+    public static boolean isFunctionalCollectionMethod(org.eclipse.jdt.core.dom.MethodInvocation node) {
+        if (node.getExpression() == null) {
+            return false;
+        }
+
+        org.eclipse.jdt.core.dom.ITypeBinding typeBinding = node.getExpression().resolveTypeBinding();
+        if (typeBinding != null) {
+            if (isCollectionOrStreamType(typeBinding)) {
+                return true;
+            }
+            return false;
+        }
+        
+        String methodName = node.getName().getIdentifier();
+        if (methodName.equals("forEach") || methodName.equals("map") || 
+            methodName.equals("filter") || methodName.equals("flatMap") || 
+            methodName.equals("anyMatch") || methodName.equals("allMatch") || 
+            methodName.equals("noneMatch") || methodName.equals("reduce") ||
+            methodName.equals("collect") || methodName.equals("removeIf") ||
+            methodName.equals("ifPresent") || methodName.equals("ifPresentOrElse") ||
+            methodName.equals("compute") || methodName.equals("computeIfAbsent") ||
+            methodName.equals("computeIfPresent") || methodName.equals("replaceAll") ||
+            methodName.equals("merge") || methodName.equals("peek") ||
+            methodName.equals("doOnNext") || methodName.equals("doOnSuccess") ||
+            methodName.equals("doOnError") || methodName.equals("concatMap") ||
+            methodName.equals("switchMap")) {
+            return true;
+        }
+        
+        return false; 
+    }
+
+    private static boolean isCollectionOrStreamType(org.eclipse.jdt.core.dom.ITypeBinding typeBinding) {
+        String fqn = typeBinding.getErasure().getQualifiedName();
+        if (fqn.startsWith("java.util.stream.") || 
+            fqn.equals("java.lang.Iterable") || 
+            fqn.equals("java.util.Collection") || 
+            fqn.equals("java.util.List") || 
+            fqn.equals("java.util.Set") || 
+            fqn.equals("java.util.Map") || 
+            fqn.equals("java.util.Iterator") || 
+            fqn.equals("java.util.Optional") ||
+            fqn.equals("reactor.core.publisher.Flux") ||
+            fqn.equals("reactor.core.publisher.Mono")) {
+            return true;
+        }
+        
+        for (org.eclipse.jdt.core.dom.ITypeBinding intf : typeBinding.getInterfaces()) {
+            if (isCollectionOrStreamType(intf)) return true;
+        }
+        
+        if (typeBinding.getSuperclass() != null) {
+            return isCollectionOrStreamType(typeBinding.getSuperclass());
+        }
+        
+        return false;
+    }
 }

state_machine_exporter/src/main/java/click/kamil/springstatemachineexporter/ast/common/CodebaseContext.java

@@ -65,7 +65,7 @@ public class CodebaseContext {
         return Collections.unmodifiableList(libraryHints);
     }
 
-    private final Set<String> ignorePatterns = new HashSet<>(Set.of("**/test/**", "**/build/**", "**/node_modules/**", "**/out/**"));
+    private final Set<String> ignorePatterns = new HashSet<>(Set.of("**/test/**", "**/build/classes/**", "**/build/libs/**", "**/build/tmp/**", "**/build/reports/**", "**/build/test-results/**", "**/node_modules/**", "**/out/**"));
     private String[] classpath = new String[0];
     private String[] sourcepath = new String[0];
     private boolean resolveBindings = false;
@@ -191,6 +191,8 @@ public class CodebaseContext {
                     indexType(td, packageName, javaFile);
                 } else if (type instanceof EnumDeclaration ed) {
                     indexEnum(ed, packageName, javaFile);
+                } else if (type instanceof org.eclipse.jdt.core.dom.RecordDeclaration rd) {
+                    indexRecord(rd, packageName, javaFile);
                 }
             }
         }
@@ -235,6 +237,33 @@ public class CodebaseContext {
         }
     }
 
+    private void indexRecord(org.eclipse.jdt.core.dom.RecordDeclaration rd, String parentFqn, Path javaFile) {
+        String simpleName = rd.getName().getIdentifier();
+        String fqn = parentFqn.isEmpty() ? simpleName : parentFqn + "." + simpleName;
+        
+        // Treat as a class since it is a type
+        classes.put(fqn, (CompilationUnit) rd.getRoot());
+        classPaths.put(fqn, javaFile);
+
+        if (simpleNameToFqn.containsKey(simpleName)) {
+            String existingFqn = simpleNameToFqn.get(simpleName);
+            if (!existingFqn.equals(fqn)) {
+                ambiguousSimpleNames.add(simpleName);
+            }
+        } else {
+            simpleNameToFqn.put(simpleName, fqn);
+        }
+
+        // Recursively index nested types
+        for (Object type : rd.bodyDeclarations()) {
+            if (type instanceof TypeDeclaration nestedTd) {
+                indexType(nestedTd, fqn, javaFile);
+            } else if (type instanceof org.eclipse.jdt.core.dom.RecordDeclaration nestedRd) {
+                indexRecord(nestedRd, fqn, javaFile);
+            }
+        }
+    }
+
     public List<String> getImplementations(String interfaceName) {
         Set<String> allImpls = new HashSet<>();
         collectImplementations(interfaceName, allImpls, new HashSet<>());

state_machine_exporter/src/main/java/click/kamil/springstatemachineexporter/service/ExportService.java

@@ -45,6 +45,7 @@ public class ExportService {
                 new EntryPointEnricher(),
                 new PropertyEnricher(),
                 new CallChainEnricher(),
+                new click.kamil.springstatemachineexporter.analysis.enricher.path.ForwardPathEstimationEnricher(),
                 new click.kamil.springstatemachineexporter.analysis.enricher.TransitionLinkerEnricher()
         )));
     }

state_machine_exporter/src/test/java/click/kamil/springstatemachineexporter/analysis/resolver/ConstantResolverTest.java

@@ -152,4 +152,334 @@ public class ConstantResolverTest {
         String result = resolver.resolve(returnExpr, context);
         assertThat(result).isEqualTo("${app.path}");
     }
+
+    @Test
+    void testConstructorAssignmentAndFieldAccess(@TempDir Path tempDir) throws IOException {
+        Path dir = tempDir.resolve("com/example");
+        Files.createDirectories(dir);
+        Files.writeString(dir.resolve("EventDto.java"),
+            "package com.example;\n" +
+            "public class EventDto {\n" +
+            "    private String eventType;\n" +
+            "    public EventDto() {\n" +
+            "        this.eventType = \"PAYMENT_SUCCESS\";\n" +
+            "    }\n" +
+            "    public String getEventType() {\n" +
+            "        return this.eventType;\n" +
+            "    }\n" +
+            "}");
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        TypeDeclaration td = context.getTypeDeclaration("com.example.EventDto");
+        MethodDeclaration method = td.getMethods()[1]; // getEventType
+        ReturnStatement rs = (ReturnStatement) method.getBody().statements().get(0);
+        Expression returnExpr = rs.getExpression(); // this.eventType
+
+        ConstantResolver resolver = new ConstantResolver();
+        String result = resolver.resolve(returnExpr, context);
+
+        assertThat(result).isEqualTo("PAYMENT_SUCCESS");
+    }
+
+    @Test
+    void testMethodEvaluationWithNestedBlocksAndVars(@TempDir Path tempDir) throws IOException {
+        Path dir = tempDir.resolve("com/example");
+        Files.createDirectories(dir);
+        Files.writeString(dir.resolve("Logic.java"),
+            "package com.example;\n" +
+            "public class Logic {\n" +
+            "    public String process(String event) {\n" +
+            "        String myVar = event;\n" +
+            "        if (myVar != null) {\n" +
+            "            return myVar;\n" +
+            "        }\n" +
+            "        return \"DEFAULT\";\n" +
+            "    }\n" +
+            "}");
+
+        Files.writeString(dir.resolve("Caller.java"),
+            "package com.example;\n" +
+            "public class Caller {\n" +
+            "    public void call() {\n" +
+            "        Logic logic = new Logic();\n" +
+            "        String result = logic.process(\"MY_EVENT\");\n" +
+            "    }\n" +
+            "}");
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        TypeDeclaration callerTd = context.getTypeDeclaration("com.example.Caller");
+        MethodDeclaration callMethod = callerTd.getMethods()[0]; // call()
+        
+        VariableDeclarationStatement vds = (VariableDeclarationStatement) callMethod.getBody().statements().get(1);
+        VariableDeclarationFragment fragment = (VariableDeclarationFragment) vds.fragments().get(0);
+        MethodInvocation mi = (MethodInvocation) fragment.getInitializer(); // logic.process("MY_EVENT")
+
+        ConstantResolver resolver = new ConstantResolver();
+        String result = resolver.resolve(mi, context);
+
+        assertThat(result).isEqualTo("MY_EVENT");
+    }
+
+    @Test
+    void testMethodShadowingReturnsParameter(@TempDir Path tempDir) throws IOException {
+        Path dir = tempDir.resolve("com/example");
+        Files.createDirectories(dir);
+        Files.writeString(dir.resolve("Logic.java"),
+            "package com.example;\n" +
+            "public class Logic {\n" +
+            "    public String a = \"OLD_FIELD\";\n" +
+            "    public String process(String a) {\n" + // shadowing
+            "        this.a = \"NEW_FIELD\";\n" +
+            "        return a;\n" + // should return the parameter
+            "    }\n" +
+            "}");
+
+        Files.writeString(dir.resolve("Caller.java"),
+            "package com.example;\n" +
+            "public class Caller {\n" +
+            "    public void call() {\n" +
+            "        Logic logic = new Logic();\n" +
+            "        String result = logic.process(\"PARAM_VALUE\");\n" +
+            "    }\n" +
+            "}");
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        TypeDeclaration callerTd = context.getTypeDeclaration("com.example.Caller");
+        MethodDeclaration callMethod = callerTd.getMethods()[0]; // call()
+        
+        VariableDeclarationStatement vds = (VariableDeclarationStatement) callMethod.getBody().statements().get(1);
+        VariableDeclarationFragment fragment = (VariableDeclarationFragment) vds.fragments().get(0);
+        MethodInvocation mi = (MethodInvocation) fragment.getInitializer(); // logic.process(...)
+
+        ConstantResolver resolver = new ConstantResolver();
+        String result = resolver.resolve(mi, context);
+
+        assertThat(result).isEqualTo("PARAM_VALUE");
+    }
+
+    @Test
+    void testMethodShadowingReturnsField(@TempDir Path tempDir) throws IOException {
+        Path dir = tempDir.resolve("com/example");
+        Files.createDirectories(dir);
+        Files.writeString(dir.resolve("Logic.java"),
+            "package com.example;\n" +
+            "public class Logic {\n" +
+            "    public String a = \"OLD_FIELD\";\n" +
+            "    public String process(String a) {\n" + // shadowing
+            "        this.a = \"NEW_FIELD_VALUE\";\n" +
+            "        return this.a;\n" + // should return the field
+            "    }\n" +
+            "}");
+
+        Files.writeString(dir.resolve("Caller.java"),
+            "package com.example;\n" +
+            "public class Caller {\n" +
+            "    public void call() {\n" +
+            "        Logic logic = new Logic();\n" +
+            "        String result = logic.process(\"PARAM_VALUE\");\n" +
+            "    }\n" +
+            "}");
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        TypeDeclaration callerTd = context.getTypeDeclaration("com.example.Caller");
+        MethodDeclaration callMethod = callerTd.getMethods()[0]; // call()
+        
+        VariableDeclarationStatement vds = (VariableDeclarationStatement) callMethod.getBody().statements().get(1);
+        VariableDeclarationFragment fragment = (VariableDeclarationFragment) vds.fragments().get(0);
+        MethodInvocation mi = (MethodInvocation) fragment.getInitializer(); // logic.process(...)
+
+        ConstantResolver resolver = new ConstantResolver();
+        String result = resolver.resolve(mi, context);
+
+        assertThat(result).isEqualTo("NEW_FIELD_VALUE");
+    }
+
+    @Test
+    void testMethodImplicitFieldAssignment(@TempDir Path tempDir) throws IOException {
+        Path dir = tempDir.resolve("com/example");
+        Files.createDirectories(dir);
+        Files.writeString(dir.resolve("Logic.java"),
+            "package com.example;\n" +
+            "public class Logic {\n" +
+            "    public String a = \"OLD_FIELD\";\n" +
+            "    public String process(String p) {\n" +
+            "        a = p;\n" + // implicit field assignment
+            "        return this.a;\n" +
+            "    }\n" +
+            "}");
+
+        Files.writeString(dir.resolve("Caller.java"),
+            "package com.example;\n" +
+            "public class Caller {\n" +
+            "    public void call() {\n" +
+            "        Logic logic = new Logic();\n" +
+            "        String result = logic.process(\"MY_EVENT\");\n" +
+            "    }\n" +
+            "}");
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        TypeDeclaration callerTd = context.getTypeDeclaration("com.example.Caller");
+        MethodDeclaration callMethod = callerTd.getMethods()[0]; // call()
+        
+        VariableDeclarationStatement vds = (VariableDeclarationStatement) callMethod.getBody().statements().get(1);
+        VariableDeclarationFragment fragment = (VariableDeclarationFragment) vds.fragments().get(0);
+        MethodInvocation mi = (MethodInvocation) fragment.getInitializer(); // logic.process(...)
+
+        ConstantResolver resolver = new ConstantResolver();
+        String result = resolver.resolve(mi, context);
+
+        assertThat(result).isEqualTo("MY_EVENT");
+    }
+
+    @Test
+    void testZeroArgMethodEvaluation(@TempDir Path tempDir) throws IOException {
+        Path dir = tempDir.resolve("com/example");
+        Files.createDirectories(dir);
+        Files.writeString(dir.resolve("Logic.java"),
+            "package com.example;\n" +
+            "public class Logic {\n" +
+            "    public String a = \"MY_CONSTANT\";\n" +
+            "    public String getEvent() {\n" +
+            "        return this.a;\n" +
+            "    }\n" +
+            "}");
+
+        Files.writeString(dir.resolve("Caller.java"),
+            "package com.example;\n" +
+            "public class Caller {\n" +
+            "    public void call() {\n" +
+            "        Logic logic = new Logic();\n" +
+            "        String result = logic.getEvent();\n" +
+            "    }\n" +
+            "}");
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        TypeDeclaration callerTd = context.getTypeDeclaration("com.example.Caller");
+        MethodDeclaration callMethod = callerTd.getMethods()[0]; // call()
+        
+        VariableDeclarationStatement vds = (VariableDeclarationStatement) callMethod.getBody().statements().get(1);
+        VariableDeclarationFragment fragment = (VariableDeclarationFragment) vds.fragments().get(0);
+        MethodInvocation mi = (MethodInvocation) fragment.getInitializer(); // logic.getEvent()
+
+        ConstantResolver resolver = new ConstantResolver();
+        String result = resolver.resolve(mi, context);
+
+        assertThat(result).isEqualTo("MY_CONSTANT");
+    }
+
+    /**
+     * When a switch method is called with a <em>known</em> constant argument, {@code evaluateMethodOutput}
+     * should evaluate the switch and return only the matching branch.
+     *
+     * <p>Regression guard: before the {@code SwitchStatement.visit} fix, the ASTVisitor would also descend
+     * into child {@code ReturnStatement} nodes after the switch was already handled, potentially overwriting
+     * a correct result with a wrong one.
+     */
+    @Test
+    void testOldStyleSwitchResolvesCorrectBranchForKnownConstant(@TempDir Path tempDir) throws IOException {
+        Path dir = tempDir.resolve("com/example");
+        Files.createDirectories(dir);
+        Files.writeString(dir.resolve("Classifier.java"),
+            "package com.example;\n" +
+            "public class Classifier {\n" +
+            "    public OrderEvents classify(String q) {\n" +
+            "        switch (q) {\n" +
+            "            case \"a\": return OrderEvents.A8;\n" +
+            "            case \"b\": return OrderEvents.B2;\n" +
+            "            default:  return OrderEvents.DEF;\n" +
+            "        }\n" +
+            "    }\n" +
+            "}\n" +
+            "enum OrderEvents { A8, B2, DEF }");
+        Files.writeString(dir.resolve("Caller.java"),
+            "package com.example;\n" +
+            "public class Caller {\n" +
+            "    public void call() {\n" +
+            "        Classifier c = new Classifier();\n" +
+            "        OrderEvents r = c.classify(\"a\");\n" + // known constant → should match case "a"
+            "    }\n" +
+            "}");
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        TypeDeclaration callerTd = context.getTypeDeclaration("com.example.Caller");
+        MethodDeclaration callMethod = callerTd.getMethods()[0];
+        VariableDeclarationStatement vds = (VariableDeclarationStatement) callMethod.getBody().statements().get(1);
+        VariableDeclarationFragment fragment = (VariableDeclarationFragment) vds.fragments().get(0);
+        MethodInvocation mi = (MethodInvocation) fragment.getInitializer(); // c.classify("a")
+
+        ConstantResolver resolver = new ConstantResolver();
+        String result = resolver.resolve(mi, context);
+
+        // Only the matching branch should be returned, not all branches
+        assertThat(result).isEqualTo("OrderEvents.A8");
+    }
+
+    /**
+     * When a switch method is called with a <em>runtime</em> variable that cannot be statically resolved,
+     * {@code evaluateMethodOutput} must return {@code null} so the resolver falls back to the return-type
+     * enum set (covering all branches).
+     *
+     * <p>Regression: before the fix, {@code SwitchStatement.visit} returned {@code super.visit(ss)} (true),
+     * causing child {@code ReturnStatement} nodes inside the switch to fire. The first return — e.g.
+     * {@code return OrderEvents.A8} — was captured as if it were the only possible result, silently
+     * dropping the other branches. After the fix the visitor returns {@code false}, preventing child
+     * traversal, so the resolver correctly falls back to the full ENUM_SET.
+     */
+    @Test
+    void testOldStyleSwitchWithUnknownVariableReturnsFallbackEnumSet(@TempDir Path tempDir) throws IOException {
+        Path dir = tempDir.resolve("com/example");
+        Files.createDirectories(dir);
+        Files.writeString(dir.resolve("Classifier.java"),
+            "package com.example;\n" +
+            "public class Classifier {\n" +
+            "    public OrderEvents classify(String q) {\n" +
+            "        switch (q) {\n" +
+            "            case \"a\": return OrderEvents.A8;\n" +
+            "            case \"b\": return OrderEvents.B2;\n" +
+            "            default:  return OrderEvents.DEF;\n" +
+            "        }\n" +
+            "    }\n" +
+            "}\n" +
+            "enum OrderEvents { A8, B2, DEF }");
+        Files.writeString(dir.resolve("Caller.java"),
+            "package com.example;\n" +
+            "public class Caller {\n" +
+            "    public void call(String x) {\n" + // x is a runtime parameter — not a constant
+            "        Classifier c = new Classifier();\n" +
+            "        OrderEvents r = c.classify(x);\n" +
+            "    }\n" +
+            "}");
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        TypeDeclaration callerTd = context.getTypeDeclaration("com.example.Caller");
+        MethodDeclaration callMethod = callerTd.getMethods()[0];
+        VariableDeclarationStatement vds = (VariableDeclarationStatement) callMethod.getBody().statements().get(1);
+        VariableDeclarationFragment fragment = (VariableDeclarationFragment) vds.fragments().get(0);
+        MethodInvocation mi = (MethodInvocation) fragment.getInitializer(); // c.classify(x)
+
+        ConstantResolver resolver = new ConstantResolver();
+        String result = resolver.resolve(mi, context);
+
+        // Must cover ALL branches via ENUM_SET — not just the first one ("A8")
+        assertThat(result).startsWith("ENUM_SET:");
+        assertThat(result).contains("OrderEvents.A8");
+        assertThat(result).contains("OrderEvents.B2");
+        assertThat(result).contains("OrderEvents.DEF");
+    }
 }

state_machine_exporter/src/test/java/click/kamil/springstatemachineexporter/analysis/service/AnonymousClassTests.java

@@ -0,0 +1,61 @@
+package click.kamil.springstatemachineexporter.analysis.service;
+
+import click.kamil.springstatemachineexporter.ast.common.CodebaseContext;
+import click.kamil.springstatemachineexporter.analysis.model.TriggerPoint;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.List;
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class AnonymousClassTests {
+
+    @TempDir
+    Path tempDir;
+
+    @Test
+    void shouldResolveEventFromAnonymousClass() throws Exception {
+        String source = """
+            package com.example;
+            public class AnonymousService {
+                private EventService service;
+                
+                public void process() {
+                    MyEvent event = new MyEvent() {
+                        @Override
+                        public String getEvent() {
+                            return "ANON_EVENT";
+                        }
+                    };
+                    service.trigger(event.getEvent());
+                }
+            }
+            class EventService {
+                public void trigger(String ev) {}
+            }
+            class MyEvent {
+                public String getEvent() { return "BASE_EVENT"; }
+            }
+            """;
+            
+        Files.writeString(tempDir.resolve("AnonymousService.java"), source);
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        HeuristicCallGraphEngine engine = new HeuristicCallGraphEngine(context);
+        
+        TriggerPoint trigger = TriggerPoint.builder()
+            .className("com.example.EventService")
+            .methodName("trigger")
+            .sourceFile("AnonymousService.java")
+            .sourceModule("com.example")
+            .event("event.getEvent()")
+            .lineNumber(12)
+            .build();
+            
+        TriggerPoint result = engine.resolveTriggerPointParameters(trigger, List.of("com.example.AnonymousService.process", "com.example.EventService.trigger"), java.util.Collections.emptyMap());
+        
+        assertThat(result.getPolymorphicEvents()).contains("ANON_EVENT");
+    }
+}

state_machine_exporter/src/test/java/click/kamil/springstatemachineexporter/analysis/service/CollectionIndexingTests.java

@@ -0,0 +1,54 @@
+package click.kamil.springstatemachineexporter.analysis.service;
+
+import click.kamil.springstatemachineexporter.ast.common.CodebaseContext;
+import click.kamil.springstatemachineexporter.analysis.model.TriggerPoint;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.List;
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class CollectionIndexingTests {
+
+    @TempDir
+    Path tempDir;
+
+    @Test
+    void shouldResolveEventFromArrayAccess() throws Exception {
+        String source = """
+            package com.example;
+            public class ArrayService {
+                private EventService service;
+                
+                public void process() {
+                    String[] events = new String[] {"EVENT_1", "EVENT_2"};
+                    service.trigger(events[0]);
+                }
+            }
+            class EventService {
+                public void trigger(String ev) {}
+            }
+            """;
+            
+        Files.writeString(tempDir.resolve("ArrayService.java"), source);
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        HeuristicCallGraphEngine engine = new HeuristicCallGraphEngine(context);
+        
+        TriggerPoint trigger = TriggerPoint.builder()
+            .className("com.example.EventService")
+            .methodName("trigger")
+            .sourceFile("ArrayService.java")
+            .sourceModule("com.example")
+            .event("events[0]")
+            .lineNumber(7)
+            .build();
+            
+        TriggerPoint result = engine.resolveTriggerPointParameters(trigger, List.of("com.example.ArrayService.process", "com.example.EventService.trigger"), java.util.Collections.emptyMap());
+        
+        // When using array indexing, we should ideally extract the indexed element or at least all elements in the array
+        assertThat(result.getPolymorphicEvents()).contains("EVENT_1");
+    }
+}

state_machine_exporter/src/test/java/click/kamil/springstatemachineexporter/analysis/service/GenericEventDetectorTest.java

@@ -89,7 +89,8 @@ public class GenericEventDetectorTest {
             "import org.springframework.statemachine.StateMachine;\n" +
             "public class MyService {\n" +
             "    private StateMachine<String, String> stateMachine;\n" +
-            "    public MyEnum getEvent() { return MyEnum.STATE_A; }\n" + // Pretend it returns the enum
+            "    public MyEnum getEvent() { return someExternalCall(); }\n" +
+            "    public MyEnum someExternalCall() { return null; }\n" +
             "    public void trigger() {\n" +
             "        stateMachine.sendEvent(this.getEvent());\n" +
             "    }\n" +

state_machine_exporter/src/test/java/click/kamil/springstatemachineexporter/analysis/service/HeuristicCallGraphEngineTest.java

@@ -1002,9 +1002,10 @@ class HeuristicCallGraphEngineTest {
 
         assertThat(chains).hasSize(1);
         CallChain chain = chains.get(0);
-        // It successfully traces the local variable 'event' to its anonymous class initializer
-        assertThat(chain.getTriggerPoint().getEvent()).startsWith("new RichEvent(){");
-        assertThat(chain.getTriggerPoint().getEvent()).endsWith(".getType()");
+        // The engine traces the anonymous class's getType() through the RichEvent interface,
+        // resolving to OrderEvents.CREATE via the enum return-type fallback.
+        assertThat(chain.getTriggerPoint().getPolymorphicEvents())
+                .containsExactlyInAnyOrder("OrderEvents.CREATE");
     }
 
     @Test
@@ -1097,7 +1098,7 @@ class HeuristicCallGraphEngineTest {
     }
 
     @Test
-    void shouldTraceLastTextualAssignmentInTryCatchBlocks() throws IOException {
+    void shouldTraceAllTextualAssignmentsInTryCatchBlocks() throws IOException {
         String source = """
                 package com.example;
                 public class OrderController {
@@ -1142,9 +1143,69 @@ class HeuristicCallGraphEngineTest {
 
         assertThat(chains).hasSize(1);
         CallChain chain = chains.get(0);
-        // The ASTVisitor picks up Assignments in textual order. 
-        // CANCELLED is the last one textually in the method.
-        assertThat(chain.getTriggerPoint().getEvent()).isEqualTo("OrderEvents.CANCELLED");
+        
+        assertThat(chain.getTriggerPoint().getPolymorphicEvents()).containsExactlyInAnyOrder("OrderEvents.PAY", "OrderEvents.CANCELLED");
+    }
+
+    @Test
+    void shouldTraceEventsThroughMapStructInterfaceImpl() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    private OrderMapper mapper = new OrderMapperImpl();
+                    public void processOrderEvent(String eventDtoStr) {
+                        OrderEvent e = mapper.toEvent(eventDtoStr);
+                        service.updateOrderState(e.getEvent());
+                    }
+                }
+                
+                class OrderService {
+                    public void updateOrderState(String event) {}
+                }
+                
+                interface OrderMapper {
+                    OrderEvent toEvent(String source);
+                }
+                
+                class OrderMapperImpl implements OrderMapper {
+                    @Override
+                    public OrderEvent toEvent(String source) {
+                        return new OrderEvent("MAPPED_EVENT");
+                    }
+                }
+                
+                class OrderEvent {
+                    private String event;
+                    public OrderEvent(String event) { this.event = event; }
+                    public String getEvent() { return event; }
+                }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_test_mapstruct");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
+
+        EntryPoint entryPoint = EntryPoint.builder()
+                .className("com.example.OrderController")
+                .methodName("processOrderEvent")
+                .build();
+
+        TriggerPoint trigger = TriggerPoint.builder()
+                .className("com.example.OrderService")
+                .methodName("updateOrderState")
+                .event("event")
+                .build();
+
+        List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
+
+        assertThat(chains).hasSize(1);
+        CallChain chain = chains.get(0);
+        
+        assertThat(chain.getTriggerPoint().getPolymorphicEvents()).containsExactlyInAnyOrder("MAPPED_EVENT");
     }
 
     @Test
@@ -1190,7 +1251,7 @@ class HeuristicCallGraphEngineTest {
         CallChain chain = chains.get(0);
         // We don't dynamically resolve array indexes, but it shouldn't crash.
         // It returns the array access expression as a string.
-        assertThat(chain.getTriggerPoint().getEvent()).isEqualTo("events[0]");
+        assertThat(chain.getTriggerPoint().getEvent()).isEqualTo("new OrderEvents[]{OrderEvents.PAY}[0]");
     }
 
     @Test
@@ -2134,5 +2195,639 @@ class HeuristicCallGraphEngineTest {
         org.assertj.core.api.Assertions.assertThat(chains).hasSize(1);
         org.assertj.core.api.Assertions.assertThat(chains.get(0).getTriggerPoint().getPolymorphicEvents()).contains("COMPLEX_INLINE_CONST");
     }
+    @Test
+    void shouldResolveEventFromConstructorAssignment() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void handleStatus() {
+                        EventWithConstructorArg e = new EventWithConstructorArg("EVENT_FROM_CONSTRUCTOR", 123);
+                        service.process(e.getType());
+                    }
+                }
+                
+                class EventWithConstructorArg {
+                    private String type;
+                    public EventWithConstructorArg(String typeArg, int other) {
+                        this.type = typeArg;
+                    }
+                    public String getType() { return type; }
+                }
+                
+                class OrderService {
+                    public void process(String event) {}
+                }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_constructor_assignment");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+        HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
 
-}
+        EntryPoint entryPoint = EntryPoint.builder().className("com.example.OrderController").methodName("handleStatus").build();
+        TriggerPoint trigger = TriggerPoint.builder().className("com.example.OrderService").methodName("process").event("event").build();
+        List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
+        
+        org.assertj.core.api.Assertions.assertThat(chains).hasSize(1);
+        org.assertj.core.api.Assertions.assertThat(chains.get(0).getTriggerPoint().getPolymorphicEvents()).containsExactlyInAnyOrder("EVENT_FROM_CONSTRUCTOR");
+    }
+
+    @Test
+    void shouldPrioritizeSetterOverConstructor() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void handleStatus() {
+                        EventWithConstructorArg e = new EventWithConstructorArg("EVENT_FROM_CONSTRUCTOR", 123);
+                        e.setType("EVENT_FROM_SETTER");
+                        service.process(e.getType());
+                    }
+                }
+                
+                class EventWithConstructorArg {
+                    private String type;
+                    public EventWithConstructorArg(String typeArg, int other) {
+                        this.type = typeArg;
+                    }
+                    public void setType(String t) { this.type = t; }
+                    public String getType() { return type; }
+                }
+                
+                class OrderService {
+                    public void process(String event) {}
+                }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_setter_priority");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+        HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
+
+        EntryPoint entryPoint = EntryPoint.builder().className("com.example.OrderController").methodName("handleStatus").build();
+        TriggerPoint trigger = TriggerPoint.builder().className("com.example.OrderService").methodName("process").event("event").build();
+        List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
+        
+        org.assertj.core.api.Assertions.assertThat(chains).hasSize(1);
+        org.assertj.core.api.Assertions.assertThat(chains.get(0).getTriggerPoint().getPolymorphicEvents()).containsExactlyInAnyOrder("EVENT_FROM_SETTER");
+    }
+
+    @Test
+    void shouldResolveEventFromArrayAndList() throws IOException {
+        String source = """
+                package com.example;
+                import java.util.List;
+                public class OrderController {
+                    private OrderService service;
+                    public void handleArray() {
+                        String[] events = {"ARRAY_EVENT"};
+                        service.process(events[0]);
+                    }
+                    public void handleList() {
+                        List<String> listEvents = List.of("LIST_EVENT");
+                        service.process(listEvents.get(0));
+                    }
+                }
+                
+                class OrderService {
+                    public void process(String event) {}
+                }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_array");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+        HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
+
+        EntryPoint entryPoint1 = EntryPoint.builder().className("com.example.OrderController").methodName("handleArray").build();
+        EntryPoint entryPoint2 = EntryPoint.builder().className("com.example.OrderController").methodName("handleList").build();
+        TriggerPoint trigger = TriggerPoint.builder().className("com.example.OrderService").methodName("process").event("event").build();
+        List<CallChain> chains = builder.findChains(List.of(entryPoint1, entryPoint2), List.of(trigger));
+        
+        org.assertj.core.api.Assertions.assertThat(chains).hasSize(2);
+        List<String> resolvedEvents = chains.stream().flatMap(c -> c.getTriggerPoint().getPolymorphicEvents().stream()).toList();
+        org.assertj.core.api.Assertions.assertThat(resolvedEvents).containsExactlyInAnyOrder("ARRAY_EVENT", "LIST_EVENT");
+    }
+
+    @Test
+    void shouldResolveEventFromFieldConstructorAssignment() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    private EventWithConstructorArg e;
+                    public OrderController() {
+                        this.e = new EventWithConstructorArg("EVENT_FROM_FIELD", 123);
+                    }
+                    public void handleStatus() {
+                        service.process(this.e.getType());
+                    }
+                }
+                
+                class EventWithConstructorArg {
+                    private String type;
+                    public EventWithConstructorArg(String typeArg, int other) {
+                        this.type = typeArg;
+                    }
+                    public String getType() { return type; }
+                }
+                
+                class OrderService {
+                    public void process(String event) {}
+                }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_field_assignment");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+        HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
+
+        EntryPoint entryPoint = EntryPoint.builder().className("com.example.OrderController").methodName("handleStatus").build();
+        TriggerPoint trigger = TriggerPoint.builder().className("com.example.OrderService").methodName("process").event("event").build();
+        List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
+        System.out.println("DEBUG CHAINS: " + (chains.isEmpty() ? "empty" : chains.get(0).getTriggerPoint().getPolymorphicEvents()));
+        
+        org.assertj.core.api.Assertions.assertThat(chains).hasSize(1);
+        org.assertj.core.api.Assertions.assertThat(chains.get(0).getTriggerPoint().getPolymorphicEvents()).containsExactlyInAnyOrder("EVENT_FROM_FIELD");
+    }
+
+    @Test
+    void shouldResolveEventFromLambda() throws IOException {
+        String source = """
+                package com.example;
+                import java.util.List;
+                public class OrderController {
+                    private OrderService service;
+                    public void handleList(List<LambdaEvent> events) {
+                        events.forEach(e -> service.process(e.getType()));
+                    }
+                }
+                
+                class LambdaEvent {
+                    private String type;
+                    public LambdaEvent(String typeArg) { this.type = typeArg; }
+                    public String getType() { return type; }
+                }
+                
+                class OrderService {
+                    public void process(String event) {}
+                }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_lambda");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+        HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
+
+        EntryPoint entryPoint = EntryPoint.builder().className("com.example.OrderController").methodName("handleList").build();
+        TriggerPoint trigger = TriggerPoint.builder().className("com.example.OrderService").methodName("process").event("event").build();
+        List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
+        System.out.println("DEBUG LAMBDA CHAINS: " + (chains.isEmpty() ? "empty" : chains.get(0).getTriggerPoint().getPolymorphicEvents()));
+        
+        org.assertj.core.api.Assertions.assertThat(chains).hasSize(1);
+        org.assertj.core.api.Assertions.assertThat(chains.get(0).getTriggerPoint().getPolymorphicEvents()).isNullOrEmpty();
+    }
+
+    @Test
+    void shouldResolveEventFromAnonymousClass() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void handleStatus() {
+                        service.process(new EventProvider() {
+                            @Override
+                            public String getEvent() { return "ANONYMOUS_EVENT"; }
+                        }.getEvent());
+                    }
+                }
+                
+                interface EventProvider {
+                    String getEvent();
+                }
+                
+                class OrderService {
+                    public void process(String event) {}
+                }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_anonymous");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+        HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
+
+        EntryPoint entryPoint = EntryPoint.builder().className("com.example.OrderController").methodName("handleStatus").build();
+        TriggerPoint trigger = TriggerPoint.builder().className("com.example.OrderService").methodName("process").event("event").build();
+        List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
+        
+        org.assertj.core.api.Assertions.assertThat(chains).hasSize(1);
+        org.assertj.core.api.Assertions.assertThat(chains.get(0).getTriggerPoint().getPolymorphicEvents()).containsExactlyInAnyOrder("ANONYMOUS_EVENT");
+    }
+
+    @Test
+    void shouldResolveEventFromBranchingAssignments() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void handleStatus(boolean isRefund) {
+                        String event;
+                        if (isRefund) {
+                            event = "REFUND_EVENT";
+                        } else {
+                            event = "CHARGE_EVENT";
+                        }
+                        service.process(event);
+                    }
+                }
+                
+                class OrderService {
+                    public void process(String event) {}
+                }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_branch");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+        HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
+
+        EntryPoint entryPoint = EntryPoint.builder().className("com.example.OrderController").methodName("handleStatus").build();
+        TriggerPoint trigger = TriggerPoint.builder().className("com.example.OrderService").methodName("process").event("event").build();
+        List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
+        
+        org.assertj.core.api.Assertions.assertThat(chains).hasSize(1);
+        List<String> resolvedEvents = chains.stream().flatMap(c -> c.getTriggerPoint().getPolymorphicEvents().stream()).toList();
+        org.assertj.core.api.Assertions.assertThat(resolvedEvents).containsExactlyInAnyOrder("REFUND_EVENT", "CHARGE_EVENT");
+    }
+
+    @Test
+    void shouldResolveEventFromLombokDataAndAllArgsConstructor() throws IOException {
+        String source = """
+                package com.example;
+                import lombok.Data;
+                import lombok.AllArgsConstructor;
+                public class OrderController {
+                    private OrderService service;
+                    public void handleLombok() {
+                        LombokEvent e = new LombokEvent("LOMBOK_EVENT", 1);
+                        service.process(e.getEvent());
+                    }
+                }
+                
+                class OrderService {
+                    public void process(String event) {}
+                }
+                
+                @Data
+                @AllArgsConstructor
+                class LombokEvent {
+                    private String event;
+                    private int id;
+                }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_lombok");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+        HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
+
+        EntryPoint entryPoint = EntryPoint.builder().className("com.example.OrderController").methodName("handleLombok").build();
+        TriggerPoint trigger = TriggerPoint.builder().className("com.example.OrderService").methodName("process").event("event").build();
+        List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
+        
+        org.assertj.core.api.Assertions.assertThat(chains).hasSize(1);
+        org.assertj.core.api.Assertions.assertThat(chains.get(0).getTriggerPoint().getPolymorphicEvents()).containsExactlyInAnyOrder("LOMBOK_EVENT");
+    }
+
+    @Test
+    void shouldResolveEventFromMethodReference() throws IOException {
+        String source = """
+                package com.example;
+                import java.util.List;
+                public class OrderController {
+                    private OrderService service;
+                    public void handleMethodRef() {
+                        List<RefEvent> events = List.of(new RefEvent("METHOD_REF_EVENT"));
+                        events.forEach(this::delegateProcessing);
+                    }
+                    private void delegateProcessing(RefEvent e) {
+                        service.process(e.getType());
+                    }
+                }
+                
+                class OrderService {
+                    public void process(String event) {}
+                }
+                
+                class RefEvent {
+                    private String type;
+                    public RefEvent(String type) { this.type = type; }
+                    public String getType() { return type; }
+                }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_method_ref");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+        HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
+
+        EntryPoint entryPoint = EntryPoint.builder().className("com.example.OrderController").methodName("handleMethodRef").build();
+        TriggerPoint trigger = TriggerPoint.builder().className("com.example.OrderService").methodName("process").event("event").build();
+        List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
+        
+        org.assertj.core.api.Assertions.assertThat(chains).hasSize(1);
+        org.assertj.core.api.Assertions.assertThat(chains.get(0).getTriggerPoint().getPolymorphicEvents()).containsExactlyInAnyOrder("METHOD_REF_EVENT");
+    }
+
+    @Test
+    void shouldResolveEventFromJavaRecord() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void handleRecord() {
+                        RecordEvent e = new RecordEvent("RECORD_EVENT", 42);
+                        service.process(e.type());
+                    }
+                }
+                
+                class OrderService {
+                    public void process(String event) {}
+                }
+                
+                record RecordEvent(String type, int someId) {}
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_record");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+        HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
+
+        EntryPoint entryPoint = EntryPoint.builder().className("com.example.OrderController").methodName("handleRecord").build();
+        TriggerPoint trigger = TriggerPoint.builder().className("com.example.OrderService").methodName("process").event("event").build();
+        List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
+        
+        org.assertj.core.api.Assertions.assertThat(chains).hasSize(1);
+        org.assertj.core.api.Assertions.assertThat(chains.get(0).getTriggerPoint().getPolymorphicEvents()).containsExactlyInAnyOrder("RECORD_EVENT");
+    }
+
+    @Test
+    void shouldFailHeuristicAndRequireAccurateLombokMapping() throws IOException {
+        String source = """
+                package com.example;
+                import lombok.Data;
+                import lombok.AllArgsConstructor;
+                public class OrderController {
+                    private OrderService service;
+                    public void handleLombok() {
+                        MultiEvent e = new MultiEvent("CORRECT_EVENT", "WRONG_EVENT");
+                        service.process(e.getEventType());
+                    }
+                }
+                
+                class OrderService {
+                    public void process(String event) {}
+                }
+                
+                @Data
+                @AllArgsConstructor
+                class MultiEvent {
+                    private String eventType;
+                    private String unrelatedString;
+                }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_lombok_heuristic_break");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+        HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
+
+        EntryPoint entryPoint = EntryPoint.builder().className("com.example.OrderController").methodName("handleLombok").build();
+        TriggerPoint trigger = TriggerPoint.builder().className("com.example.OrderService").methodName("process").event("event").build();
+        List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
+        
+        org.assertj.core.api.Assertions.assertThat(chains).hasSize(1);
+        org.assertj.core.api.Assertions.assertThat(chains.get(0).getTriggerPoint().getPolymorphicEvents())
+            .containsExactly("CORRECT_EVENT"); // If heuristic rips both, it will fail because it contains WRONG_EVENT too!
+    }
+
+    @Test
+    void shouldNotExtractConstantsFromNestedClassInstanceCreations() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void handleNestedConstructors() {
+                        // The event contains a nested constructor. The heuristic should NOT extract WRONG_EVENT.
+                        OuterEvent e = new OuterEvent("CORRECT_EVENT", new InnerPayload("WRONG_EVENT"));
+                        service.process(e.getEventType());
+                    }
+                }
+                
+                class OrderService {
+                    public void process(String event) {}
+                }
+                
+                class OuterEvent {
+                    private String eventType;
+                    private InnerPayload payload;
+                    public OuterEvent(String eventType, InnerPayload payload) {
+                        this.eventType = eventType;
+                        this.payload = payload;
+                    }
+                    public String getEventType() { return eventType; }
+                }
+                
+                class InnerPayload {
+                    private String someData;
+                    public InnerPayload(String someData) { this.someData = someData; }
+                }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_nested_constructor");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+        HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
+
+        EntryPoint entryPoint = EntryPoint.builder().className("com.example.OrderController").methodName("handleNestedConstructors").build();
+        TriggerPoint trigger = TriggerPoint.builder().className("com.example.OrderService").methodName("process").event("event").build();
+        List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
+        
+        org.assertj.core.api.Assertions.assertThat(chains).hasSize(1);
+        org.assertj.core.api.Assertions.assertThat(chains.get(0).getTriggerPoint().getPolymorphicEvents())
+            .containsExactly("CORRECT_EVENT");
+    }
+
+    @Test
+    void shouldNotExtractConstantsFromNestedArraysOfObjects() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void handleNestedArrays() {
+                        // The event contains a nested array of objects. The heuristic should NOT extract WRONG_EVENT.
+                        OuterEvent e = new OuterEvent("CORRECT_EVENT", new InnerPayload[] { new InnerPayload("WRONG_EVENT") });
+                        service.process(e.getEventType());
+                    }
+                }
+                
+                class OrderService {
+                    public void process(String event) {}
+                }
+                
+                class OuterEvent {
+                    private String eventType;
+                    private InnerPayload[] payloads;
+                    public OuterEvent(String eventType, InnerPayload[] payloads) {
+                        this.eventType = eventType;
+                        this.payloads = payloads;
+                    }
+                    public String getEventType() { return eventType; }
+                }
+                
+                class InnerPayload {
+                    private String someData;
+                    public InnerPayload(String someData) { this.someData = someData; }
+                }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_nested_array");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+        HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
+
+        EntryPoint entryPoint = EntryPoint.builder().className("com.example.OrderController").methodName("handleNestedArrays").build();
+        TriggerPoint trigger = TriggerPoint.builder().className("com.example.OrderService").methodName("process").event("event").build();
+        List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
+        
+        org.assertj.core.api.Assertions.assertThat(chains).hasSize(1);
+        org.assertj.core.api.Assertions.assertThat(chains.get(0).getTriggerPoint().getPolymorphicEvents())
+            .containsExactly("CORRECT_EVENT");
+    }
+    @Test
+    void shouldResolveEnumValueOfFromString(@TempDir Path tempDir) throws IOException {
+        String source = """
+                package com.example;
+                public class Endpoint {
+                    private OrderService service;
+                    public void trigger(String eventString) {
+                        service.doSomething(eventString);
+                    }
+                }
+                
+                class OrderService {
+                    public void doSomething(String str) {
+                        MyEvents event = mapToEnum(str);
+                        sendEvent(event);
+                    }
+                    private MyEvents mapToEnum(String str) {
+                        return MyEvents.valueOf(str);
+                    }
+                    public void sendEvent(MyEvents e) {}
+                }
+                
+                enum MyEvents { A, B }
+                """;
+        Files.writeString(tempDir.resolve("Endpoint.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
+
+        EntryPoint entryPoint = EntryPoint.builder()
+                .className("com.example.Endpoint")
+                .methodName("trigger")
+                .build();
+
+        TriggerPoint trigger = TriggerPoint.builder()
+                .className("com.example.OrderService")
+                .methodName("sendEvent")
+                .event("e")
+                .build();
+
+        List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
+
+        assertThat(chains).hasSize(1);
+        CallChain chain = chains.get(0);
+        assertThat(chain.getTriggerPoint().getPolymorphicEvents())
+            .containsExactlyInAnyOrder("MyEvents.A", "MyEvents.B");
+    }
+
+    /**
+     * Regression test for the early-exit bug in {@code resolveTriggerPointParameters}.
+     *
+     * <p>When {@code traceLocalSetter} matches a field method call whose name happens to equal the
+     * accessor suffix (e.g. {@code mapper.transform(dto)} matching {@code methodName="transform"}),
+     * and the argument passed to that method is a non-constant runtime parameter, no events are
+     * extracted. The old condition
+     * <pre>if (!polymorphicEvents.isEmpty() || !resolvedValue.equals(tp.getEvent()))</pre>
+     * caused an early return with empty {@code polymorphicEvents} because {@code resolvedValue} had
+     * already diverged from the original event name.
+     *
+     * <p>After the fix the condition is just {@code !polymorphicEvents.isEmpty()}, so resolution
+     * continues through {@code getVariableDeclaredType} → {@code resolveMethodReturnConstant},
+     * which correctly traces the field's declared type to its implementation and extracts the
+     * constant returned by {@code TransformerImpl.transform()}.
+     */
+    @Test
+    void shouldResolveEventsWhenFieldTransformerMethodMatchesSetterPatternButArgIsNonConstant() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private Transformer transformer;
+                    public void processEvent(String dto) {
+                        Event e = transformer.transform(dto);
+                        machine.fire(e.getType());
+                    }
+                }
+
+                interface Transformer {
+                    Event transform(String input);
+                }
+
+                class TransformerImpl implements Transformer {
+                    public Event transform(String input) {
+                        return new Event("ORDER_DISPATCHED");
+                    }
+                }
+
+                class Event {
+                    private String type;
+                    public Event(String type) { this.type = type; }
+                    public String getType() { return type; }
+                }
+
+                class Machine {
+                    public void fire(String event) {}
+                }
+                """;
+        java.nio.file.Path tempDir = java.nio.file.Files.createTempDirectory("callgraph_test_transformer");
+        java.nio.file.Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        HeuristicCallGraphEngine engine = new HeuristicCallGraphEngine(context);
+
+        EntryPoint entryPoint = EntryPoint.builder()
+                .className("com.example.OrderController")
+                .methodName("processEvent")
+                .build();
+
+        TriggerPoint trigger = TriggerPoint.builder()
+                .className("com.example.Machine")
+                .methodName("fire")
+                .event("event")
+                .build();
+
+        List<CallChain> chains = engine.findChains(List.of(entryPoint), List.of(trigger));
+
+        assertThat(chains).hasSize(1);
+        // Must resolve through TransformerImpl.transform() → "ORDER_DISPATCHED",
+        // NOT return empty polymorphicEvents due to early exit on the setter match.
+        assertThat(chains.get(0).getTriggerPoint().getPolymorphicEvents())
+                .containsExactlyInAnyOrder("ORDER_DISPATCHED");
+    }
+}

state_machine_exporter/src/test/java/click/kamil/springstatemachineexporter/analysis/service/StreamApiTests.java

@@ -0,0 +1,66 @@
+package click.kamil.springstatemachineexporter.analysis.service;
+
+import click.kamil.springstatemachineexporter.ast.common.CodebaseContext;
+import click.kamil.springstatemachineexporter.analysis.model.TriggerPoint;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.List;
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class StreamApiTests {
+
+    @TempDir
+    Path tempDir;
+
+    @Test
+    void shouldHandleStreamApiChains() throws Exception {
+        String source = """
+            package com.example;
+            import java.util.List;
+            
+            public class StreamService {
+                private EventService service;
+                
+                public void process(List<MyEvent> events) {
+                    events.stream()
+                        .filter(e -> e.isValid())
+                        .map(e -> e.toEvent())
+                        .forEach(t -> service.trigger(t.getEvent()));
+                }
+            }
+            class EventService {
+                public void trigger(String ev) {}
+            }
+            class MyEvent {
+                public boolean isValid() { return true; }
+                public OrderEvent toEvent() { return new OrderEvent(); }
+            }
+            class OrderEvent {
+                public String getEvent() { return "STREAM_EVENT"; }
+            }
+            """;
+            
+        Files.writeString(tempDir.resolve("StreamService.java"), source);
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        HeuristicCallGraphEngine engine = new HeuristicCallGraphEngine(context);
+        
+        TriggerPoint trigger = TriggerPoint.builder()
+            .className("com.example.EventService")
+            .methodName("trigger")
+            .sourceFile("StreamService.java")
+            .sourceModule("com.example")
+            .event("t.getEvent()")
+            .lineNumber(11)
+            .build();
+            
+        TriggerPoint result = engine.resolveTriggerPointParameters(trigger, List.of("com.example.StreamService.process", "com.example.EventService.trigger"), java.util.Collections.emptyMap());
+        System.out.println("TEST RESULT: " + result);
+        System.out.println("POLY EVENTS: " + result.getPolymorphicEvents());
+        
+        assertThat(result.getPolymorphicEvents()).isNotNull().containsExactlyInAnyOrder("STREAM_EVENT");
+    }
+}

state_machine_exporter/src/test/resources/golden/PolymorphicStateMachineConfiguration/PolymorphicStateMachineConfiguration.json

@@ -381,10 +381,18 @@
         "stateMachineId" : null,
         "sourceState" : null,
         "lineNumber" : 13,
-        "polymorphicEvents" : [ ]
+        "polymorphicEvents" : [ "OrderEvents.PAY", "OrderEvents.CANCEL" ]
       },
       "contextMachineId" : null,
-      "matchedTransitions" : null
+      "matchedTransitions" : [ {
+        "sourceState" : "OrderStates.SUBMITTED",
+        "targetState" : "OrderStates.PAID",
+        "event" : "OrderEvents.PAY"
+      }, {
+        "sourceState" : "OrderStates.SUBMITTED",
+        "targetState" : "OrderStates.CANCELED",
+        "event" : "OrderEvents.CANCEL"
+      } ]
     }, {
       "entryPoint" : {
         "type" : "REST",
@@ -400,7 +408,7 @@
       },
       "methodChain" : [ "click.kamil.examples.statemachine.polymorphic.PolymorphicController.payList", "click.kamil.examples.statemachine.polymorphic.OrderService.processEvent" ],
       "triggerPoint" : {
-        "event" : "event",
+        "event" : "new PayEvent()",
         "className" : "click.kamil.examples.statemachine.polymorphic.OrderService",
         "methodName" : "processEvent",
         "sourceFile" : "src/main/java/click/kamil/examples/statemachine/polymorphic/OrderService.java",
@@ -408,25 +416,13 @@
         "stateMachineId" : null,
         "sourceState" : null,
         "lineNumber" : 13,
-        "polymorphicEvents" : null
+        "polymorphicEvents" : [ "OrderEvents.PAY" ]
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
         "sourceState" : "OrderStates.SUBMITTED",
         "targetState" : "OrderStates.PAID",
         "event" : "OrderEvents.PAY"
-      }, {
-        "sourceState" : "OrderStates.PAID",
-        "targetState" : "OrderStates.FULFILLED",
-        "event" : "OrderEvents.FULFILL"
-      }, {
-        "sourceState" : "OrderStates.SUBMITTED",
-        "targetState" : "OrderStates.CANCELED",
-        "event" : "OrderEvents.CANCEL"
-      }, {
-        "sourceState" : "OrderStates.PAID",
-        "targetState" : "OrderStates.CANCELED",
-        "event" : "OrderEvents.ABCD"
       } ]
     }, {
       "entryPoint" : {

state_machine_exporter/src/test/resources/golden/StateMachineConfig/StateMachineConfig.json

@@ -144,7 +144,7 @@
         "stateMachineId" : null,
         "sourceState" : null,
         "lineNumber" : 25,
-        "polymorphicEvents" : [ ]
+        "polymorphicEvents" : [ "OrderEvent.PROCESS" ]
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -175,7 +175,7 @@
         "stateMachineId" : null,
         "sourceState" : null,
         "lineNumber" : 25,
-        "polymorphicEvents" : [ ]
+        "polymorphicEvents" : [ "OrderEvent.COMPLETE" ]
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -206,7 +206,7 @@
         "stateMachineId" : null,
         "sourceState" : null,
         "lineNumber" : 25,
-        "polymorphicEvents" : [ ]
+        "polymorphicEvents" : [ "OrderEvent.CANCEL" ]
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -241,7 +241,7 @@
         "stateMachineId" : null,
         "sourceState" : null,
         "lineNumber" : 25,
-        "polymorphicEvents" : [ ]
+        "polymorphicEvents" : [ "OrderEvent.COMPLETE" ]
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -276,7 +276,7 @@
         "stateMachineId" : null,
         "sourceState" : null,
         "lineNumber" : 78,
-        "polymorphicEvents" : [ ]
+        "polymorphicEvents" : [ "OrderEvent.PROCESS" ]
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -311,7 +311,7 @@
         "stateMachineId" : null,
         "sourceState" : null,
         "lineNumber" : 25,
-        "polymorphicEvents" : [ ]
+        "polymorphicEvents" : [ "OrderEvent.PROCESS" ]
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -346,7 +346,7 @@
         "stateMachineId" : null,
         "sourceState" : null,
         "lineNumber" : 50,
-        "polymorphicEvents" : [ ]
+        "polymorphicEvents" : [ "OrderEvent.CANCEL" ]
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {