call graph fix + tests

state_machine_exporter/build.gradle

@@ -36,6 +36,7 @@ dependencies {
 	implementation 'com.fasterxml.jackson.core:jackson-databind:2.17.1'
 	implementation 'com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.17.1'
 	implementation 'com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.17.1'
+	implementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:2.17.1'
 
 	compileOnly 'org.projectlombok:lombok:1.18.46'
 	annotationProcessor 'org.projectlombok:lombok:1.18.46'

state_machine_exporter/src/main/java/click/kamil/springstatemachineexporter/Main.java

@@ -14,6 +14,14 @@ import java.util.List;
 
 public class Main {
     public static void main(String[] args) {
+        // Enable diagnostic mode early before SLF4J initializes
+        for (String arg : args) {
+            if ("--debug".equals(arg)) {
+                System.setProperty("org.slf4j.simpleLogger.defaultLogLevel", "debug");
+                break;
+            }
+        }
+
         // Manual DI / Wiring
         var exporters = List.of(new PlantUml(), new Dot(), new Scxml(), new JsonExporter());
         var exportService = new ExportService(exporters);

state_machine_exporter/src/main/java/click/kamil/springstatemachineexporter/analysis/enricher/TransitionLinkerEnricher.java

@@ -41,37 +41,75 @@ public class TransitionLinkerEnricher implements AnalysisEnricher {
                 if (t.getEvent() != null) {
                     String smEventRaw = t.getEvent().fullIdentifier() != null ? t.getEvent().fullIdentifier() : t.getEvent().rawName();
                     String smEvent = simplify(smEventRaw);
-                    if (smEvent.equals(triggerEvent)) {
+                    
-                        // Event matches. Check source state if provided
+                    boolean isWildcard = triggerEvent.equals("event") || triggerEvent.equals("e") || 
+                                         triggerEvent.equals("msg") || triggerEvent.equals("message") || 
+                                         triggerEvent.equals("payload") || triggerEvent.matches(".*\\.get[A-Z].*\\(\\)");
+                    
+                    if (isWildcard) {
+                        String targetVar = chain.getContextMachineId();
+                        if (targetVar == null && chain.getTriggerPoint() != null) {
+                            targetVar = chain.getTriggerPoint().getStateMachineId();
+                        }
+                        // We no longer hard-block wildcards without a specific routing context.
+                        // If a project doesn't use standard SM persisters (e.g. restores state manually),
+                        // contextMachineId will be null. We should still link the wildcard to provide SOME visibility,
+                        // rather than completely hiding the endpoint.
+                    }
+                                         
+                    List<String> polyEvents = tp.getPolymorphicEvents() != null ? tp.getPolymorphicEvents() : java.util.Collections.emptyList();
+                    boolean hasPolyMatch = false;
+                    for (String pe : polyEvents) {
+                        String simplePe = pe;
+                        if (pe.contains(".")) {
+                            simplePe = pe.substring(pe.lastIndexOf('.') + 1);
+                        }
+                        if (simplePe.equals(smEventRaw) || simplePe.equals(smEvent)) {
+                            hasPolyMatch = true;
+                            break;
+                        }
+                    }
+
+                    if (hasPolyMatch || (polyEvents.isEmpty() && (isWildcard || smEvent.equals(triggerEvent) || triggerEvent.toLowerCase().contains(smEvent.toLowerCase()) || smEvent.toLowerCase().contains(triggerEvent.toLowerCase())))) {
+                        // Event matches or is a wildcard
                         for (State smSourceState : t.getSourceStates()) {
                             String smSourceRaw = smSourceState.fullIdentifier() != null ? smSourceState.fullIdentifier() : smSourceState.rawName();
                             String smSource = simplify(smSourceRaw);
                             if (triggerSource == null || triggerSource.equals(smSource)) {
+                                if (t.getTargetStates() == null || t.getTargetStates().isEmpty()) {
+                                    MatchedTransition mt = MatchedTransition.builder()
+                                            .sourceState(smSourceRaw)
+                                            .targetState(smSourceRaw)
+                                            .event(smEventRaw)
+                                            .build();
+                                    if (isRoutedToCorrectMachine(chain, result.getName())) {
+                                        matched.add(mt);
+                                    }
+                                } else {
                                     for (State smTargetState : t.getTargetStates()) {
-                                    String sourceRaw = smSourceState.fullIdentifier() != null ? smSourceState.fullIdentifier() : smSourceState.rawName();
                                         String targetRaw = smTargetState.fullIdentifier() != null ? smTargetState.fullIdentifier() : smTargetState.rawName();
-                                    matched.add(MatchedTransition.builder()
+                                        MatchedTransition mt = MatchedTransition.builder()
-                                            .sourceState(sourceRaw)
+                                                .sourceState(smSourceRaw)
                                                 .targetState(targetRaw)
                                                 .event(smEventRaw)
-                                            .build());
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-
-            // Create a new CallChain with the matched transitions
-            CallChain updatedChain = CallChain.builder()
-                    .entryPoint(chain.getEntryPoint())
-                    .methodChain(chain.getMethodChain())
-                    .triggerPoint(chain.getTriggerPoint())
-                    .contextMachineId(chain.getContextMachineId())
-                    .matchedTransitions(matched)
                                                 .build();
+                                        if (isRoutedToCorrectMachine(chain, result.getName())) {
+                                            matched.add(mt);
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
 
-            updatedChains.add(updatedChain);
+            if (!matched.isEmpty()) {
+                CallChain newChain = chain.toBuilder().matchedTransitions(matched).build();
+                updatedChains.add(newChain);
+            } else {
+                updatedChains.add(chain);
+            }
         }
 
         // Update the metadata with the new call chains
@@ -85,12 +123,38 @@ public class TransitionLinkerEnricher implements AnalysisEnricher {
         result.setMetadata(updatedMetadata);
     }
 
+    private boolean isRoutedToCorrectMachine(CallChain chain, String currentMachineName) {
+        // If the chain's target expression or qualifier indicates a specific machine name, verify it
+        String targetVar = chain.getContextMachineId();
+        if (targetVar == null && chain.getTriggerPoint() != null) {
+            targetVar = chain.getTriggerPoint().getStateMachineId();
+        }
+        
+        if (targetVar != null && !targetVar.isEmpty()) {
+            targetVar = targetVar.toLowerCase();
+            // E.g., if target is "myStateMachine", ensure current machine name contains "my"
+            String simplifiedMachineName = currentMachineName.substring(currentMachineName.lastIndexOf('.') + 1).toLowerCase();
+            // If the variable name ends with StateMachine, we extract the prefix
+            if (targetVar.endsWith("statemachine")) {
+                String prefix = targetVar.substring(0, targetVar.length() - "statemachine".length());
+                if (!prefix.isEmpty() && !simplifiedMachineName.contains(prefix)) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
     private String simplify(String name) {
-        if (name == null) return "";
+        if (name == null) return null;
-        int dot = name.lastIndexOf('.');
+        // Strip common suffixes
-        if (dot >= 0) {
+        String simplified = name.replaceAll("(?i)(.*)(Event|Action|Transition|Command)(s)?$", "$1");
-            return name.substring(dot + 1);
+        if (simplified.isEmpty()) {
+            simplified = name;
         }
-        return name;
+        // Simplify full identifiers to just the last part (enum name)
+        simplified = simplified.replaceAll("^.*\\.([A-Z0-9_]+)$", "$1");
+        // For remaining full caps with underscores (like EVENT_X), keep as is or try to simplify
+        return simplified;
     }
 }

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

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

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

@@ -13,5 +13,7 @@ import java.util.List;
 @JsonIgnoreProperties(ignoreUnknown = true)
 public class LibraryHint {
     private final String methodFqn; // e.g., "com.thirdparty.Workflow.send"
-    private final String event;     // The event it triggers
+    private final String event;     // The event it triggers (static)
+    private final Integer eventArgumentIndex; // e.g., 0 to extract from the 0th argument
+    private final String eventArgumentMethod; // e.g., "getType" to extract from argument method call
 }

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

@@ -20,4 +20,5 @@ public class TriggerPoint {
     private final String stateMachineId; // Optional: to link to a specific SM instance
     private final String sourceState;    // Optional: if we can determine the expected current state
     private final int lineNumber;
+    private final java.util.List<String> polymorphicEvents; // NEW: stores concrete events resolved via deep polymorphism
 }

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

@@ -48,7 +48,8 @@ public class ConstantResolver {
             return resolveInfix(infix, context, visited);
         }
         if (expr instanceof QualifiedName qn) {
-            return resolveManual(qn, context, visited);
+            String val = resolveManual(qn, context, visited);
+            return val != null ? val : qn.toString();
         }
         if (expr instanceof SimpleName sn) {
             return resolveManual(sn, context, visited);

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

@@ -105,25 +105,32 @@ public class PropertyResolver {
     }
 
     private Map<String, String> loadYaml(Path path) {
-        // Placeholder for future YAML support
+        Map<String, String> props = new HashMap<>();
-        log.warn("YAML parsing not fully implemented yet for {}", path);
+        try {
-        return new HashMap<>();
+            com.fasterxml.jackson.databind.ObjectMapper mapper = new com.fasterxml.jackson.databind.ObjectMapper(new com.fasterxml.jackson.dataformat.yaml.YAMLFactory());
+            Map<String, Object> map = mapper.readValue(path.toFile(), new com.fasterxml.jackson.core.type.TypeReference<Map<String, Object>>() {});
+            flattenYaml("", map, props);
+        } catch (IOException e) {
+            log.warn("Failed to load YAML from {}", path);
+        }
+        return props;
+    }
+
+    @SuppressWarnings("unchecked")
+    private void flattenYaml(String prefix, Map<String, Object> map, Map<String, String> result) {
+        if (map == null) return;
+        for (Map.Entry<String, Object> entry : map.entrySet()) {
+            String key = prefix.isEmpty() ? entry.getKey() : prefix + "." + entry.getKey();
+            Object value = entry.getValue();
+            if (value instanceof Map) {
+                flattenYaml(key, (Map<String, Object>) value, result);
+            } else if (value != null) {
+                result.put(key, value.toString());
+            }
+        }
     }
 
     public String resolveValue(String placeholder, Map<String, String> properties) {
-        if (placeholder == null || !placeholder.contains("${")) return placeholder;
+        return click.kamil.springstatemachineexporter.analysis.util.PlaceholderResolver.resolve(placeholder, properties);
-        
-        // Very basic placeholder extraction: ${key} or ${key:default}
-        String content = placeholder.substring(placeholder.indexOf("${") + 2, placeholder.lastIndexOf("}"));
-        String key = content;
-        String defaultValue = null;
-        
-        if (content.contains(":")) {
-            int colonIndex = content.indexOf(":");
-            key = content.substring(0, colonIndex);
-            defaultValue = content.substring(colonIndex + 1);
-        }
-        
-        return properties.getOrDefault(key, defaultValue);
     }
 }

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

@@ -34,10 +34,12 @@ public class CallGraphBuilder {
 
         for (EntryPoint ep : entryPoints) {
             String startMethod = ep.getClassName() + "." + ep.getMethodName();
+            boolean foundAny = false;
             for (TriggerPoint tp : triggers) {
                 String targetMethod = tp.getClassName() + "." + tp.getMethodName();
                 List<String> path = findPath(startMethod, targetMethod, callGraph, new HashSet<>());
                 if (path != null) {
+                    foundAny = true;
                     TriggerPoint resolvedTp = resolveTriggerPointParameters(tp, path, callGraph);
                     String contextMachineId = extractContextMachineId(path, callGraph);
                     chains.add(CallChain.builder()
@@ -48,6 +50,9 @@ public class CallGraphBuilder {
                             .build());
                 }
             }
+            if (!foundAny && log.isDebugEnabled()) {
+                log.debug("Entry point {} ({}) did not reach any trigger points. Graph nodes available: {}", ep.getName(), startMethod, callGraph.keySet());
+            }
         }
         return chains;
     }
@@ -60,6 +65,17 @@ public class CallGraphBuilder {
 
         String currentParamName = event;
         String resolvedValue = event;
+        String methodSuffix = "";
+
+        // Extract method calls like .getType() so we can trace the base parameter
+        int dotIndex = currentParamName.indexOf('.');
+        if (dotIndex > 0 && dotIndex + 1 < currentParamName.length()) {
+            char nextChar = currentParamName.charAt(dotIndex + 1);
+            if (Character.isLowerCase(nextChar)) {
+                methodSuffix = currentParamName.substring(dotIndex);
+                currentParamName = currentParamName.substring(0, dotIndex);
+            }
+        }
         
         // Walk backwards up the call chain
         for (int i = path.size() - 1; i > 0; i--) {
@@ -68,6 +84,21 @@ public class CallGraphBuilder {
             
             // Find parameter index in target method
             int paramIndex = getParameterIndex(target, currentParamName);
+            if (paramIndex < 0) {
+                // Not a parameter. Maybe it's a local variable initialized from a parameter or method call?
+                String tracedVar = traceLocalVariable(target, currentParamName);
+                if (tracedVar != null && !tracedVar.equals(currentParamName)) {
+                    // Extract method calls like .getType() from the traced variable
+                    int dotIdx = tracedVar.indexOf('.');
+                    if (dotIdx > 0 && dotIdx + 1 < tracedVar.length() && Character.isLowerCase(tracedVar.charAt(dotIdx + 1))) {
+                        methodSuffix = tracedVar.substring(dotIdx) + methodSuffix;
+                        tracedVar = tracedVar.substring(0, dotIdx);
+                    }
+                    currentParamName = tracedVar;
+                    resolvedValue = tracedVar + methodSuffix;
+                    paramIndex = getParameterIndex(target, currentParamName);
+                }
+            }
             if (paramIndex < 0) {
                 break; // Parameter name changed or not found, stop tracing
             }
@@ -81,8 +112,14 @@ public class CallGraphBuilder {
                         if (paramIndex < edge.getArguments().size()) {
                             String arg = edge.getArguments().get(paramIndex);
                             if (arg != null) {
+                                // If the argument passed has a method call, extract it
+                                int dotIdx = arg.indexOf('.');
+                                if (dotIdx > 0 && dotIdx + 1 < arg.length() && Character.isLowerCase(arg.charAt(dotIdx + 1))) {
+                                    methodSuffix = arg.substring(dotIdx) + methodSuffix;
+                                    arg = arg.substring(0, dotIdx);
+                                }
                                 currentParamName = arg;
-                                resolvedValue = arg;
+                                resolvedValue = arg + methodSuffix;
                                 found = true;
                                 break;
                             }
@@ -93,13 +130,73 @@ public class CallGraphBuilder {
             if (!found) break; // Could not map argument
         }
         
-        if (!resolvedValue.equals(event)) {
+        // Final check on the entry method
+        String entryMethod = path.get(0);
+        int entryParamIndex = getParameterIndex(entryMethod, currentParamName);
+        if (entryParamIndex < 0) {
+            String tracedVar = traceLocalVariable(entryMethod, currentParamName);
+            if (tracedVar != null && !tracedVar.equals(currentParamName)) {
+                int dotIdx = tracedVar.indexOf('.');
+                if (dotIdx > 0 && dotIdx + 1 < tracedVar.length() && Character.isLowerCase(tracedVar.charAt(dotIdx + 1))) {
+                    methodSuffix = tracedVar.substring(dotIdx) + methodSuffix;
+                    tracedVar = tracedVar.substring(0, dotIdx);
+                }
+                currentParamName = tracedVar;
+                resolvedValue = tracedVar + methodSuffix;
+            }
+        }
+        
+        List<String> polymorphicEvents = new ArrayList<>();
+        if (resolvedValue.matches(".*\\.get[A-Z].*\\(\\)")) {
+            String varName = resolvedValue.substring(0, resolvedValue.indexOf('.'));
+            String methodName = resolvedValue.substring(resolvedValue.indexOf('.') + 1, resolvedValue.indexOf('('));
+            
+            // Resolve in the first method in the path where the variable might be declared
+            for (String methodFqn : path) {
+                String declaredType = getVariableDeclaredType(methodFqn, varName);
+                if (declaredType != null) {
+                    System.out.println("DEEP TRACE: " + methodFqn + " " + varName + " -> " + declaredType);
+                    List<String> typesToInspect = new ArrayList<>();
+                    typesToInspect.add(declaredType);
+                    typesToInspect.addAll(context.getImplementations(declaredType));
+                    System.out.println("DEEP TRACE IMPLS: " + typesToInspect);
+                    
+                    for (String type : typesToInspect) {
+                        Set<String> visited = new HashSet<>();
+                        // We must find the compilation unit to pass for simple names!
+                        // Let's pass the first available CU for this class
+                        TypeDeclaration baseTd = context.getTypeDeclaration(type);
+                        CompilationUnit cuToUse = null;
+                        if (baseTd != null && baseTd.getRoot() instanceof CompilationUnit) {
+                            cuToUse = (CompilationUnit) baseTd.getRoot();
+                        } else {
+                            String entryClassName = methodFqn.substring(0, methodFqn.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);
+                        System.out.println("DEEP TRACE RETURN: " + type + " -> " + constants);
+                        for (String constant : constants) {
+                            if (!polymorphicEvents.contains(constant)) {
+                                polymorphicEvents.add(constant);
+                            }
+                        }
+                    }
+                    break;
+                }
+            }
+        }
+        
+        if (!resolvedValue.equals(event) || !polymorphicEvents.isEmpty()) {
             return TriggerPoint.builder()
                     .event(resolvedValue)
                     .className(tp.getClassName())
                     .methodName(tp.getMethodName())
                     .sourceFile(tp.getSourceFile())
                     .lineNumber(tp.getLineNumber())
+                    .polymorphicEvents(polymorphicEvents)
                     .build();
         }
         
@@ -125,6 +222,172 @@ public class CallGraphBuilder {
         return -1;
     }
 
+    private 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();
+                    }
+                }
+                final String[] foundType = new String[1];
+                if (md.getBody() != null) {
+                    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)) {
+                                    foundType[0] = node.getType().toString();
+                                }
+                            }
+                            return super.visit(node);
+                        }
+                    });
+                }
+                return foundType[0];
+            }
+        }
+        return null;
+    }
+
+    private List<String> resolveMethodReturnConstant(String className, String methodName, int depth, Set<String> visited, CompilationUnit contextCu) {
+        if (depth > 20) return Collections.emptyList();
+        String fqn = className + "." + methodName;
+        if (!visited.add(fqn)) return Collections.emptyList();
+
+        List<String> constants = new ArrayList<>();
+        TypeDeclaration td = contextCu != null ? context.getTypeDeclaration(className, contextCu) : context.getTypeDeclaration(className);
+        if (td == null) {
+            System.out.println("DEEP TRACE FAILED TO FIND TD: " + className);
+        }
+        if (td != null) {
+            MethodDeclaration md = context.findMethodDeclaration(td, methodName, true);
+            if (md != null && md.getBody() != null) {
+                md.getBody().accept(new ASTVisitor() {
+                    @Override
+                    public boolean visit(ReturnStatement node) {
+                        Expression retExpr = node.getExpression();
+                        if (retExpr != null) {
+                            boolean handled = false;
+                            if (retExpr instanceof MethodInvocation mi) {
+                                // Follow delegation first
+                                String called = resolveCalledMethod(mi);
+                                System.out.println("DEEP TRACE RESOLVED CALLED: " + called);
+                                if (called != null && called.contains(".")) {
+                                    if (visited.contains(called)) {
+                                        handled = true;
+                                    } else {
+                                        String cName = called.substring(0, called.lastIndexOf('.'));
+                                        String mName = called.substring(called.lastIndexOf('.') + 1);
+                                        
+                                        TypeDeclaration targetTd = contextCu != null ? context.getTypeDeclaration(cName, contextCu) : context.getTypeDeclaration(cName);
+                                        if (targetTd == null) targetTd = context.getTypeDeclaration(cName);
+                                        
+                                        if (targetTd != null && context.findMethodDeclaration(targetTd, mName, true) != null) {
+                                            List<String> delegationResult = resolveMethodReturnConstant(cName, mName, depth + 1, visited, contextCu);
+                                            constants.addAll(delegationResult);
+                                            handled = true;
+                                        }
+                                    }
+                                }
+                            }
+                            if (!handled) {
+                                String val = constantResolver.resolve(retExpr, context);
+                                if (val != null) {
+                                    if (val.startsWith("ENUM_SET:")) {
+                                        for (String eVal : val.substring(9).split(",")) {
+                                            constants.add(eVal.substring(eVal.lastIndexOf('.') + 1));
+                                        }
+                                    } else {
+                                        constants.add(val);
+                                    }
+                                } else if (retExpr instanceof QualifiedName qn) {
+                                    constants.add(qn.toString());
+                                } else if (retExpr instanceof SimpleName sn) {
+                                    constants.add(sn.toString());
+                                }
+                            }
+                        }
+                        return super.visit(node);
+                    }
+                });
+            }
+        }
+        visited.remove(fqn);
+        return constants;
+    }
+
+    private String traceLocalVariable(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 && md.getBody() != null) {
+                final Expression[] initializer = new Expression[1];
+                md.getBody().accept(new ASTVisitor() {
+                    @Override
+                    public boolean visit(VariableDeclarationFragment node) {
+                        if (node.getName().getIdentifier().equals(varName) && node.getInitializer() != null) {
+                            initializer[0] = 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();
+                        }
+                        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() + "()";
+                            }
+                            return innerMi.getName().getIdentifier() + "()";
+                        }
+                        if (innerMost instanceof SimpleName sn) {
+                            return sn.getIdentifier();
+                        }
+                        return innerMost.toString();
+                    }
+                    if (expr instanceof SimpleName sn) {
+                        return sn.getIdentifier();
+                    }
+                    return expr.toString();
+                }
+            }
+        }
+        return null;
+    }
+
+    private Expression unwrapMethodInvocation(MethodInvocation mi, int depth) {
+        if (depth > 5) return mi;
+        if (!mi.arguments().isEmpty()) {
+            Expression arg = (Expression) mi.arguments().get(0);
+            if (arg instanceof MethodInvocation innerMi) {
+                return unwrapMethodInvocation(innerMi, depth + 1);
+            }
+            return arg;
+        }
+        return mi;
+    }
+
     private String extractContextMachineId(List<String> path, Map<String, List<CallEdge>> callGraph) {
         for (String node : path) {
             List<CallEdge> edges = callGraph.get(node);
@@ -143,22 +406,26 @@ public class CallGraphBuilder {
         return null;
     }
 
+    private MethodDeclaration findEnclosingMethod(ASTNode node) {
+        ASTNode parent = node.getParent();
+        while (parent != null && !(parent instanceof MethodDeclaration)) {
+            parent = parent.getParent();
+        }
+        return (MethodDeclaration) parent;
+    }
+
     private Map<String, List<CallEdge>> buildCallGraph() {
         graph = new HashMap<>();
         for (CompilationUnit cu : context.getCompilationUnits()) {
             cu.accept(new ASTVisitor() {
-                @Override
-                public boolean visit(MethodDeclaration node) {
-                    TypeDeclaration td = findEnclosingType(node);
-                    if (td != null) {
-                        currentMethodFqn = context.getFqn(td) + "." + node.getName().getIdentifier();
-                    }
-                    return super.visit(node);
-                }
 
                 @Override
                 public boolean visit(MethodInvocation node) {
-                    if (currentMethodFqn != null) {
+                    MethodDeclaration md = findEnclosingMethod(node);
+                    if (md != null) {
+                        TypeDeclaration td = findEnclosingType(md);
+                        if (td != null) {
+                            String currentMethodFqn = context.getFqn(td) + "." + md.getName().getIdentifier();
                             List<String> calledMethods = resolveCalledMethodsPolymorphic(node);
                             List<String> args = resolveArguments(node.arguments());
                             for (String calledMethod : calledMethods) {
@@ -168,13 +435,31 @@ public class CallGraphBuilder {
                                 if (argObj instanceof ExpressionMethodReference emr) {
                                     String typeName = emr.getExpression().toString();
                                     if ("this".equals(typeName) || "super".equals(typeName)) {
-                                    TypeDeclaration td = findEnclosingType(node);
+                                        TypeDeclaration td2 = findEnclosingType(node);
-                                    if (td != null) {
+                                        if (td2 != null) {
-                                        String refMethod = resolveMethodInType(td, emr.getName().getIdentifier());
+                                            String refMethod = resolveMethodInType(td2, emr.getName().getIdentifier());
                                             if (refMethod != null) {
                                                 graph.computeIfAbsent(currentMethodFqn, k -> new ArrayList<>()).add(new CallEdge(refMethod, args));
                                             }
                                         }
+                                    } else {
+                                        String fallbackTypeFqn = null;
+                                        ITypeBinding binding = emr.getExpression().resolveTypeBinding();
+                                        if (binding != null) {
+                                            fallbackTypeFqn = binding.getQualifiedName();
+                                        } else if (emr.getExpression() instanceof SimpleName sn) {
+                                            fallbackTypeFqn = resolveReceiverTypeFallback(sn);
+                                        }
+                                        if (fallbackTypeFqn != null) {
+                                            String calledMethod = fallbackTypeFqn + "." + emr.getName().getIdentifier();
+                                            graph.computeIfAbsent(currentMethodFqn, k -> new ArrayList<>()).add(new CallEdge(calledMethod, args));
+                                            
+                                            List<String> impls = context.getImplementations(fallbackTypeFqn);
+                                            for (String impl : impls) {
+                                                graph.computeIfAbsent(currentMethodFqn, k -> new ArrayList<>()).add(new CallEdge(impl + "." + emr.getName().getIdentifier(), args));
+                                            }
+                                        }
+                                    }
                                 }
                             }
                         }
@@ -184,7 +469,11 @@ public class CallGraphBuilder {
 
                 @Override
                 public boolean visit(SuperMethodInvocation node) {
-                    if (currentMethodFqn != null) {
+                    MethodDeclaration md = findEnclosingMethod(node);
+                    if (md != null) {
+                        TypeDeclaration tdOuter = findEnclosingType(md);
+                        if (tdOuter != null) {
+                            String currentMethodFqn = context.getFqn(tdOuter) + "." + md.getName().getIdentifier();
                             String methodName = node.getName().getIdentifier();
                             TypeDeclaration td = findEnclosingType(node);
                             if (td != null) {
@@ -203,6 +492,7 @@ public class CallGraphBuilder {
                                 }
                             }
                         }
+                    }
                     return super.visit(node);
                 }
             });
@@ -246,7 +536,11 @@ public class CallGraphBuilder {
             }
             
             // Extract from constructor args (e.g., new CustomMessage(OrderEvent.PROCESS, ...))
-            expr = traceVariable(expr);
+            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
+            }
+
             if (expr instanceof ClassInstanceCreation cic) {
                 if (!cic.arguments().isEmpty()) {
                     expr = (Expression) cic.arguments().get(0);
@@ -299,7 +593,18 @@ public class CallGraphBuilder {
             return binding.getQualifiedName() + "." + methodName;
         }
 
+        if (receiver instanceof ThisExpression) {
+            TypeDeclaration td = findEnclosingType(node);
+            if (td != null) {
+                return context.getFqn(td) + "." + methodName;
+            }
+        }
+
         if (receiver instanceof SimpleName sn) {
+            String fallbackTypeFqn = resolveReceiverTypeFallback(sn);
+            if (fallbackTypeFqn != null) {
+                return fallbackTypeFqn + "." + methodName;
+            }
             String receiverName = sn.getIdentifier();
             return receiverName + "." + methodName; 
         }
@@ -307,6 +612,85 @@ public class CallGraphBuilder {
         return null;
     }
 
+    private String resolveReceiverTypeFallback(SimpleName receiverNameNode) {
+        String varName = receiverNameNode.getIdentifier();
+        
+        // 1. Check local variables in enclosing method
+        MethodDeclaration enclosingMethod = findEnclosingMethod(receiverNameNode);
+        if (enclosingMethod != null) {
+            // Check parameters
+            for (Object paramObj : enclosingMethod.parameters()) {
+                SingleVariableDeclaration svd = (SingleVariableDeclaration) paramObj;
+                if (svd.getName().getIdentifier().equals(varName)) {
+                    return resolveTypeToFqn(svd.getType(), receiverNameNode);
+                }
+            }
+            // Check method body (local variables)
+            if (enclosingMethod.getBody() != null) {
+                Type[] foundType = new Type[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)) {
+                                foundType[0] = node.getType();
+                            }
+                        }
+                        return super.visit(node);
+                    }
+                });
+                if (foundType[0] != null) {
+                    return resolveTypeToFqn(foundType[0], receiverNameNode);
+                }
+            }
+        }
+
+        // 2. Check fields in enclosing class
+        TypeDeclaration enclosingType = findEnclosingType(receiverNameNode);
+        if (enclosingType != null) {
+            for (FieldDeclaration field : enclosingType.getFields()) {
+                for (Object fragObj : field.fragments()) {
+                    VariableDeclarationFragment frag = (VariableDeclarationFragment) fragObj;
+                    if (frag.getName().getIdentifier().equals(varName)) {
+                        return resolveTypeToFqn(field.getType(), receiverNameNode);
+                    }
+                }
+            }
+        }
+
+        return null;
+    }
+
+    private String resolveTypeToFqn(Type type, ASTNode contextNode) {
+        if (type == null) return null;
+        String simpleName;
+        if (type.isSimpleType()) {
+            simpleName = ((SimpleType) type).getName().getFullyQualifiedName();
+        } else if (type.isParameterizedType()) {
+            return resolveTypeToFqn(((ParameterizedType) type).getType(), contextNode);
+        } else {
+            simpleName = type.toString();
+        }
+
+        CompilationUnit cu = (CompilationUnit) contextNode.getRoot();
+        TypeDeclaration td = context.getTypeDeclaration(simpleName, cu);
+        if (td != null) {
+            return context.getFqn(td);
+        }
+        
+        // Fallback to import matching if CodebaseContext doesn't know it (e.g., external library)
+        for (Object impObj : cu.imports()) {
+            ImportDeclaration imp = (ImportDeclaration) impObj;
+            String impName = imp.getName().getFullyQualifiedName();
+            if (impName.endsWith("." + simpleName)) {
+                return impName;
+            }
+        }
+
+        return simpleName;
+    }
+
     private String resolveMethodInType(TypeDeclaration td, String methodName) {
         MethodDeclaration md = context.findMethodDeclaration(td, methodName, true);
         if (md != null) {
@@ -336,6 +720,11 @@ public class CallGraphBuilder {
                 }
             }
         }
+        
+        if (log.isDebugEnabled()) {
+            log.debug("Path search dead-end at {} when looking for {}", start, target);
+        }
+        
         visited.remove(start);
         return null;
     }
@@ -383,12 +772,4 @@ public class CallGraphBuilder {
         }
         return expr;
     }
-
-    private MethodDeclaration findEnclosingMethod(ASTNode node) {
-        ASTNode parent = node.getParent();
-        while (parent != null && !(parent instanceof MethodDeclaration)) {
-            parent = parent.getParent();
-        }
-        return (MethodDeclaration) parent;
-    }
 }

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

@@ -64,7 +64,18 @@ public class GenericEventDetector {
 
         for (LibraryHint hint : hints) {
             if (calledMethod.equals(hint.getMethodFqn()) || isHintMatch(calledMethod, hint.getMethodFqn())) {
-                List<TriggerPoint> builtTriggers = buildTriggerPoints(node, cu, hint.getEvent());
+                String eventToUse = hint.getEvent();
+                if (eventToUse == null && hint.getEventArgumentIndex() != null) {
+                    if (node.arguments().size() > hint.getEventArgumentIndex()) {
+                        Expression argExpr = (Expression) node.arguments().get(hint.getEventArgumentIndex());
+                        eventToUse = argExpr.toString();
+                        if (hint.getEventArgumentMethod() != null && !hint.getEventArgumentMethod().isEmpty()) {
+                            eventToUse = eventToUse + "." + hint.getEventArgumentMethod() + "()";
+                        }
+                    }
+                }
+                
+                List<TriggerPoint> builtTriggers = buildTriggerPoints(node, cu, eventToUse);
                 if (builtTriggers != null) {
                     for (TriggerPoint trigger : builtTriggers) {
                         log.debug("Successfully built synthetic trigger point from hint: {}", trigger.getEvent());
@@ -291,7 +302,8 @@ public class GenericEventDetector {
             } else if (current.arguments().isEmpty() && current.getExpression() instanceof SimpleName sn) {
                 // If the event is obtained by calling a method on a provider/supplier parameter, 
                 // return the provider's name so CallGraphBuilder can trace the lambda argument
-                return sn.getIdentifier();
+                String traced = extractEventFromMessageBuilder(sn);
+                return traced != null ? traced : sn.getIdentifier();
             }
             
             Expression receiver = current.getExpression();

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

@@ -24,6 +24,7 @@ public class JdtIntelligenceProvider implements CodebaseIntelligenceProvider {
     private final CallGraphBuilder callGraphBuilder;
     private final LifecycleDetector lifecycleDetector;
     private final InterceptorDetector interceptorDetector;
+    private final SpringComponentDetector componentDetector;
 
     public JdtIntelligenceProvider(CodebaseContext context, Path rootDir) {
         this.context = context;
@@ -34,6 +35,7 @@ public class JdtIntelligenceProvider implements CodebaseIntelligenceProvider {
         this.callGraphBuilder = new CallGraphBuilder(context);
         this.lifecycleDetector = new LifecycleDetector(context);
         this.interceptorDetector = new InterceptorDetector(context);
+        this.componentDetector = new SpringComponentDetector(context);
     }
 
     @Override
@@ -58,6 +60,7 @@ public class JdtIntelligenceProvider implements CodebaseIntelligenceProvider {
             allEntryPoints.addAll(mvcDetector.detect(cu));
             allEntryPoints.addAll(messagingDetector.detect(cu));
             allEntryPoints.addAll(interceptorDetector.detect(cu));
+            allEntryPoints.addAll(componentDetector.detect(cu));
         }
         log.info("Found {} entry points (including interceptors and listeners) in total", allEntryPoints.size());
         return allEntryPoints;

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

@@ -0,0 +1,117 @@
+package click.kamil.springstatemachineexporter.analysis.service;
+
+import click.kamil.springstatemachineexporter.analysis.model.EntryPoint;
+import click.kamil.springstatemachineexporter.ast.common.CodebaseContext;
+import lombok.RequiredArgsConstructor;
+import org.eclipse.jdt.core.dom.ASTVisitor;
+import org.eclipse.jdt.core.dom.Annotation;
+import org.eclipse.jdt.core.dom.CompilationUnit;
+import org.eclipse.jdt.core.dom.MemberValuePair;
+import org.eclipse.jdt.core.dom.MethodDeclaration;
+import org.eclipse.jdt.core.dom.NormalAnnotation;
+import org.eclipse.jdt.core.dom.SingleMemberAnnotation;
+import org.eclipse.jdt.core.dom.TypeDeclaration;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@RequiredArgsConstructor
+public class SpringComponentDetector {
+    private final CodebaseContext context;
+
+    public List<EntryPoint> detect(CompilationUnit cu) {
+        List<EntryPoint> entryPoints = new ArrayList<>();
+        cu.accept(new ASTVisitor() {
+            @Override
+            public boolean visit(MethodDeclaration node) {
+                if (!(node.getParent() instanceof TypeDeclaration)) {
+                    return super.visit(node);
+                }
+                TypeDeclaration parentTd = (TypeDeclaration) node.getParent();
+
+                for (Object modifier : node.modifiers()) {
+                    if (modifier instanceof Annotation annotation) {
+                        String typeName = annotation.getTypeName().getFullyQualifiedName();
+                        if (typeName.endsWith("Scheduled")) {
+                            Map<String, String> meta = new HashMap<>();
+                            String cron = extractAnnotationValue(annotation, "cron");
+                            if (!cron.isEmpty())
+                                meta.put("cron", cron);
+                            String fixedRate = extractAnnotationValue(annotation, "fixedRate");
+                            if (!fixedRate.isEmpty())
+                                meta.put("fixedRate", fixedRate);
+                            String fixedDelay = extractAnnotationValue(annotation, "fixedDelay");
+                            if (!fixedDelay.isEmpty())
+                                meta.put("fixedDelay", fixedDelay);
+
+                            entryPoints.add(EntryPoint.builder()
+                                    .type(EntryPoint.Type.CUSTOM)
+                                    .name("@Scheduled: " + node.getName().getIdentifier())
+                                    .className(context.getFqn(parentTd))
+                                    .methodName(node.getName().getIdentifier())
+                                    .sourceFile(context.getRelativePath(context.getFqn(parentTd)))
+                                    .metadata(meta)
+                                    .build());
+                        } else if (typeName.endsWith("EventListener")) {
+                            Map<String, String> meta = new HashMap<>();
+                            String classes = extractAnnotationValue(annotation, "classes");
+                            if (!classes.isEmpty())
+                                meta.put("classes", classes);
+                            String condition = extractAnnotationValue(annotation, "condition");
+                            if (!condition.isEmpty())
+                                meta.put("condition", condition);
+
+                            entryPoints.add(EntryPoint.builder()
+                                    .type(EntryPoint.Type.CUSTOM)
+                                    .name("@EventListener: " + node.getName().getIdentifier())
+                                    .className(context.getFqn(parentTd))
+                                    .methodName(node.getName().getIdentifier())
+                                    .sourceFile(context.getRelativePath(context.getFqn(parentTd)))
+                                    .metadata(meta)
+                                    .build());
+                        } else if (typeName.endsWith("Around") || typeName.endsWith("Before") || typeName.endsWith("After") || typeName.endsWith("AfterReturning") || typeName.endsWith("AfterThrowing")) {
+                            Map<String, String> meta = new HashMap<>();
+                            String value = extractAnnotationValue(annotation, "value");
+                            if (!value.isEmpty())
+                                meta.put("pointcut", value);
+                            else {
+                                String pointcut = extractAnnotationValue(annotation, "pointcut");
+                                if (!pointcut.isEmpty())
+                                    meta.put("pointcut", pointcut);
+                            }
+
+                            entryPoints.add(EntryPoint.builder()
+                                    .type(EntryPoint.Type.CUSTOM)
+                                    .name("@" + annotation.getTypeName().getFullyQualifiedName() + ": " + node.getName().getIdentifier())
+                                    .className(context.getFqn(parentTd))
+                                    .methodName(node.getName().getIdentifier())
+                                    .sourceFile(context.getRelativePath(context.getFqn(parentTd)))
+                                    .metadata(meta)
+                                    .build());
+                        }
+                    }
+                }
+                return super.visit(node);
+            }
+        });
+        return entryPoints;
+    }
+
+    private String extractAnnotationValue(Annotation annotation, String memberName) {
+        if (annotation instanceof SingleMemberAnnotation sma) {
+            if ("value".equals(memberName)) {
+                return sma.getValue().toString();
+            }
+        } else if (annotation instanceof NormalAnnotation na) {
+            for (Object pairObj : na.values()) {
+                MemberValuePair pair = (MemberValuePair) pairObj;
+                if (pair.getName().getIdentifier().equals(memberName)) {
+                    return pair.getValue().toString();
+                }
+            }
+        }
+        return "";
+    }
+}

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

@@ -213,10 +213,19 @@ public class CodebaseContext {
         }
 
         // Inheritance Mapping
-        for (Object itf : td.superInterfaceTypes()) {
+        // Track implementations (for both interfaces and superclasses)
-            String itfName = itf.toString();
+        if (td.superInterfaceTypes() != null) {
+            for (Object itfObj : td.superInterfaceTypes()) {
+                Type itf = (Type) itfObj;
+                String itfName = extractTypeName(itf);
                 interfaceToImpls.computeIfAbsent(itfName, k -> new ArrayList<>()).add(fqn);
             }
+        }
+        Type superclass = td.getSuperclassType();
+        if (superclass != null) {
+            String superName = extractTypeName(superclass);
+            interfaceToImpls.computeIfAbsent(superName, k -> new ArrayList<>()).add(fqn);
+        }
 
         // Recursively index nested types
         for (Object type : td.getTypes()) {
@@ -227,28 +236,38 @@ public class CodebaseContext {
     }
 
     public List<String> getImplementations(String interfaceName) {
+        Set<String> allImpls = new HashSet<>();
+        collectImplementations(interfaceName, allImpls, new HashSet<>());
+        return new ArrayList<>(allImpls);
+    }
+
+    private void collectImplementations(String typeName, Set<String> results, Set<String> visited) {
+        if (!visited.add(typeName)) return;
+
         // Try direct match
-        List<String> impls = interfaceToImpls.get(interfaceName);
+        List<String> directImpls = interfaceToImpls.get(typeName);
-        if (impls != null) return impls;
         
         // Try FQN match if input was simple name
-        String fqn = simpleNameToFqn.get(interfaceName);
+        if (directImpls == null) {
-        if (fqn != null && interfaceToImpls.containsKey(fqn)) {
+            String fqn = simpleNameToFqn.get(typeName);
-            return interfaceToImpls.get(fqn);
+            if (fqn != null) {
+                directImpls = interfaceToImpls.get(fqn);
+            }
         }
         
         // Try simple name match if input was FQN
-        if (interfaceName.contains(".")) {
+        if (directImpls == null && typeName.contains(".")) {
-            String simpleName = interfaceName.substring(interfaceName.lastIndexOf('.') + 1);
+            String simpleName = typeName.substring(typeName.lastIndexOf('.') + 1);
-            List<String> simpleImpls = interfaceToImpls.get(simpleName);
+            directImpls = interfaceToImpls.get(simpleName);
-            if (simpleImpls != null) {
-                // To be perfectly safe, we could check if simpleNameToFqn matches, 
-                // but for call graphs, returning potential implementations is fine.
-                return simpleImpls;
-            }
         }
 
-        return Collections.emptyList();
+        if (directImpls != null) {
+            for (String impl : directImpls) {
+                results.add(impl);
+                // Recursively find implementations of the implementation (e.g., subclasses of an abstract class)
+                collectImplementations(impl, results, visited);
+            }
+        }
     }
 
     private void indexEnum(EnumDeclaration ed, String parentFqn, Path javaFile) {

state_machine_exporter/src/main/java/click/kamil/springstatemachineexporter/command/ExporterCommand.java

@@ -54,11 +54,19 @@ public class ExporterCommand implements Callable<Integer> {
     @Option(names = {"--state"}, description = "Format for states when they are enums: fn (fullName, default), fqn (fully qualified name), sn (short name)", defaultValue = "fn")
     private click.kamil.springstatemachineexporter.exporter.EnumFormat stateFormat;
 
+    @Option(names = {"--debug"}, description = "Enable diagnostic mode to show unresolved call chains and detailed analysis logging.", defaultValue = "false")
+    private boolean debug;
+
     @Override
     public Integer call() throws Exception {
         var out = spec.commandLine().getOut();
         var err = spec.commandLine().getErr();
 
+        if (debug) {
+            System.setProperty("org.slf4j.simpleLogger.defaultLogLevel", "debug");
+            out.println(CommandLine.Help.Ansi.AUTO.string("@|bold,cyan Diagnostic mode enabled|@"));
+        }
+
         if (inputDir == null && jsonFile == null) {
             inputDir = Path.of(".");
         }

state_machine_exporter/src/test/java/click/kamil/springstatemachineexporter/GoldenUpdater.java

@@ -23,8 +23,7 @@ import java.util.List;
 public class GoldenUpdater {
 
     private static final List<StateMachineExporter> exporters = List.of(new PlantUml(), new Dot(), new Scxml(), new JsonExporter());
-    private static final EnrichmentService enrichmentService = new EnrichmentService(Collections.emptyList());
+    private static final ExportService exportService = new ExportService(exporters);
-    private static final ExportService exportService = new ExportService(exporters, enrichmentService);
 
     public static void main(String[] args) throws Exception {
         List<TestScenario> scenarios = provideTestScenarios();

state_machine_exporter/src/test/java/click/kamil/springstatemachineexporter/analysis/enricher/TransitionLinkerEnricherTest.java

@@ -118,4 +118,76 @@ class TransitionLinkerEnricherTest {
         CallChain updatedChain = result.getMetadata().getCallChains().get(0);
         assertThat(updatedChain.getMatchedTransitions()).isNull();
     }
+
+    @Test
+    void shouldMatchWildcardVariable() {
+        Transition t1 = new Transition();
+        t1.setSourceStates(List.of(State.of("NEW", "NEW")));
+        t1.setTargetStates(List.of(State.of("PAID", "PAID")));
+        t1.setEvent(Event.of("PAY", "PAY"));
+
+        CallChain chain = CallChain.builder()
+                .triggerPoint(TriggerPoint.builder().event("event").build())
+                .contextMachineId("testMachine")
+                .build();
+
+        AnalysisResult result = AnalysisResult.builder()
+                .name("testMachine")
+                .transitions(List.of(t1))
+                .metadata(CodebaseMetadata.builder().callChains(List.of(chain)).build())
+                .build();
+
+        enricher.enrich(result, null, null);
+
+        CallChain updatedChain = result.getMetadata().getCallChains().get(0);
+        assertThat(updatedChain.getMatchedTransitions()).hasSize(1);
+    }
+
+    @Test
+    void shouldMatchMethodCallWildcard() {
+        Transition t1 = new Transition();
+        t1.setSourceStates(List.of(State.of("NEW", "NEW")));
+        t1.setTargetStates(List.of(State.of("PAID", "PAID")));
+        t1.setEvent(Event.of("PAY", "PAY"));
+
+        CallChain chain = CallChain.builder()
+                .triggerPoint(TriggerPoint.builder().event("richEvent.getType()").build())
+                .contextMachineId("testMachine")
+                .build();
+
+        AnalysisResult result = AnalysisResult.builder()
+                .name("testMachine")
+                .transitions(List.of(t1))
+                .metadata(CodebaseMetadata.builder().callChains(List.of(chain)).build())
+                .build();
+
+        enricher.enrich(result, null, null);
+
+        CallChain updatedChain = result.getMetadata().getCallChains().get(0);
+        assertThat(updatedChain.getMatchedTransitions()).hasSize(1);
+    }
+
+    @Test
+    void shouldAllowWildcardWhenContextMachineIdIsMissing() {
+        Transition t1 = new Transition();
+        t1.setSourceStates(List.of(State.of("NEW", "NEW")));
+        t1.setTargetStates(List.of(State.of("PAID", "PAID")));
+        t1.setEvent(Event.of("PAY", "PAY"));
+
+        CallChain chain = CallChain.builder()
+                .triggerPoint(TriggerPoint.builder().event("event").build())
+                // NO contextMachineId or stateMachineId
+                .build();
+
+        AnalysisResult result = AnalysisResult.builder()
+                .name("testMachine")
+                .transitions(List.of(t1))
+                .metadata(CodebaseMetadata.builder().callChains(List.of(chain)).build())
+                .build();
+
+        enricher.enrich(result, null, null);
+
+        CallChain updatedChain = result.getMetadata().getCallChains().get(0);
+        assertThat(updatedChain.getMatchedTransitions()).hasSize(1);
+    }
 }

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

@@ -0,0 +1,60 @@
+package click.kamil.springstatemachineexporter.analysis.resolver;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Map;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class PropertyResolverTest {
+
+    @Test
+    void testYamlPropertiesAreLoadedAndFlattened(@TempDir Path tempDir) throws IOException {
+        Path applicationYml = tempDir.resolve("application.yml");
+        Files.writeString(applicationYml, """
+                messaging:
+                  sqs:
+                    integration-system1:
+                      callback:
+                        queue: "integration-system1-queue"
+                """);
+
+        PropertyResolver resolver = new PropertyResolver();
+        Map<String, String> props = resolver.resolveProperties(tempDir);
+
+        assertThat(props).containsEntry("messaging.sqs.integration-system1.callback.queue", "integration-system1-queue");
+    }
+
+    @Test
+    void testPropertiesFilesAreLoaded(@TempDir Path tempDir) throws IOException {
+        Path applicationProps = tempDir.resolve("application.properties");
+        Files.writeString(applicationProps, "messaging.sqs.integration-system1.callback.queue=integration-system1-queue-props");
+
+        PropertyResolver resolver = new PropertyResolver();
+        Map<String, String> props = resolver.resolveProperties(tempDir);
+
+        assertThat(props).containsEntry("messaging.sqs.integration-system1.callback.queue", "integration-system1-queue-props");
+    }
+
+    @Test
+    void testPlaceholderResolution() {
+        PropertyResolver resolver = new PropertyResolver();
+        Map<String, String> properties = Map.of("messaging.sqs.integration-system1.callback.queue", "integration-system1-queue");
+
+        String resolved = resolver.resolveValue("SQS: ${messaging.sqs.integration-system1.callback.queue}", properties);
+        assertThat(resolved).isEqualTo("SQS: integration-system1-queue");
+    }
+
+    @Test
+    void testPlaceholderResolutionWithDefault() {
+        PropertyResolver resolver = new PropertyResolver();
+        Map<String, String> properties = Map.of();
+
+        String resolved = resolver.resolveValue("SQS: ${messaging.sqs.queue:default-queue}", properties);
+        assertThat(resolved).isEqualTo("SQS: default-queue");
+    }
+}

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

@@ -0,0 +1,957 @@
+package click.kamil.springstatemachineexporter.analysis.service;
+
+import click.kamil.springstatemachineexporter.analysis.model.CallChain;
+import click.kamil.springstatemachineexporter.analysis.model.EntryPoint;
+import click.kamil.springstatemachineexporter.analysis.model.TriggerPoint;
+import click.kamil.springstatemachineexporter.ast.common.CodebaseContext;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class CallGraphBuilderTest {
+
+    @Test
+    void shouldFindCallChainWithLambdaMethodReference(@TempDir Path tempDir) throws IOException {
+        String source = """
+                package com.example;
+                public class OrderService {
+                    private final EventDispatcher dispatcher = new EventDispatcher();
+                    
+                    public void processOrder() {
+                        dispatcher.dispatch("order", this::sendEvent);
+                    }
+                    
+                    public void sendEvent(String event) {
+                        // Dummy trigger
+                    }
+                }
+                
+                class EventDispatcher {
+                    public void dispatch(String order, java.util.function.Consumer<String> callback) {
+                        callback.accept("MY_EVENT");
+                    }
+                }
+                """;
+        Files.writeString(tempDir.resolve("OrderService.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        CallGraphBuilder builder = new CallGraphBuilder(context);
+
+        EntryPoint entryPoint = EntryPoint.builder()
+                .className("com.example.OrderService")
+                .methodName("processOrder")
+                .build();
+
+        TriggerPoint trigger = TriggerPoint.builder()
+                .className("com.example.OrderService")
+                .methodName("sendEvent")
+                .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.getMethodChain()).containsExactly(
+                "com.example.OrderService.processOrder",
+                "com.example.OrderService.sendEvent"
+        );
+    }
+
+    @Test
+    void shouldExtractContextMachineId(@TempDir Path tempDir) throws IOException {
+        String source = """
+                package com.example;
+                public class PersisterService {
+                    private final StateMachinePersister persister = new StateMachinePersister();
+                    
+                    public void updateOrderState(String orderId) {
+                        StateMachine sm = persister.restore(null, "machine:" + orderId);
+                        sm.sendEvent("PAY");
+                    }
+                }
+                
+                class StateMachinePersister {
+                    public StateMachine restore(Object sm, String contextObj) {
+                        return new StateMachine();
+                    }
+                }
+                
+                class StateMachine {
+                    public void sendEvent(String event) {}
+                }
+                """;
+        Files.writeString(tempDir.resolve("PersisterService.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        CallGraphBuilder builder = new CallGraphBuilder(context);
+
+        EntryPoint entryPoint = EntryPoint.builder()
+                .className("com.example.PersisterService")
+                .methodName("updateOrderState")
+                .build();
+
+        TriggerPoint trigger = TriggerPoint.builder()
+                .className("com.example.StateMachine")
+                .methodName("sendEvent")
+                .event("PAY")
+                .build();
+
+        List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
+
+        assertThat(chains).hasSize(1);
+        CallChain chain = chains.get(0);
+        assertThat(chain.getContextMachineId()).isNotNull();
+        // Since it's tracing constant concatenation: "machine:" + orderId, which might resolve dynamically or string format.
+        // It should at least be present (it typically extracts 'machine:' + orderId into expression).
+    }
+
+    @Test
+    void shouldResolveTriggerPointParametersAcrossChain() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void createOrder() {
+                        service.updateOrderState(OrderEvents.CREATE);
+                    }
+                }
+                
+                class OrderService {
+                    private StateMachine sm;
+                    public void updateOrderState(OrderEvents event) {
+                        sm.sendEvent(event);
+                    }
+                }
+                
+                class StateMachine {
+                    public void sendEvent(Object event) {}
+                }
+                
+                enum OrderEvents { CREATE, PAY }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_test");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        CallGraphBuilder builder = new CallGraphBuilder(context);
+
+        EntryPoint entryPoint = EntryPoint.builder()
+                .className("com.example.OrderController")
+                .methodName("createOrder")
+                .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().getEvent()).isEqualTo("OrderEvents.CREATE");
+    }
+
+    @Test
+    void shouldResolveTriggerPointLocalVariableAcrossChain() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void processOrderEvent(MyOrderEvent domainEvent) {
+                        doProcessOrderEvent(domainEvent);
+                    }
+                    
+                    private void doProcessOrderEvent(MyOrderEvent domainEvent) {
+                        OrderEvents eventType = domainEvent.getType();
+                        service.updateOrderState(eventType);
+                    }
+                }
+                
+                class OrderService {
+                    public void updateOrderState(OrderEvents event) {
+                        // sendEvent
+                    }
+                }
+                
+                class MyOrderEvent {
+                    public OrderEvents getType() { return OrderEvents.PAY; }
+                }
+                
+                enum OrderEvents { CREATE, PAY }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_test2");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        CallGraphBuilder builder = new CallGraphBuilder(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())
+            .as("Resolved event was: " + chain.getTriggerPoint().getEvent())
+            .containsExactlyInAnyOrder("OrderEvents.PAY");
+    }
+
+    @Test
+    void shouldResolvePolymorphicInheritanceAcrossChain() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void processOrderEvent(RichOrderEvent domainEvent) {
+                        doProcessOrderEvent(domainEvent);
+                    }
+                    
+                    private void doProcessOrderEvent(RichOrderEvent domainEvent) {
+                        OrderEvents eventType = assertSupportedOrderEvent(domainEvent.getType());
+                        service.updateOrderState(eventType);
+                    }
+                    
+                    private OrderEvents assertSupportedOrderEvent(OrderEvents e) {
+                        return e;
+                    }
+                }
+                
+                class OrderService {
+                    public void updateOrderState(OrderEvents event) {
+                        // sendEvent
+                    }
+                }
+                
+                interface RichOrderEvent {
+                    OrderEvents getType();
+                }
+                
+                class CancelOrderEvent implements RichOrderEvent {
+                    public OrderEvents getType() { return OrderEvents.CANCELLED; }
+                }
+                
+                class ReceiveOrderEvent implements RichOrderEvent {
+                    public OrderEvents getType() { return OrderEvents.RECEIVED; }
+                }
+                
+                enum OrderEvents { CREATE, PAY, CANCELLED, RECEIVED }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_test_poly");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        CallGraphBuilder builder = new CallGraphBuilder(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())
+            .as("Resolved event was: " + chain.getTriggerPoint().getEvent())
+            .containsExactlyInAnyOrder("OrderEvents.CANCELLED", "OrderEvents.RECEIVED");
+    }
+
+    @Test
+    void shouldUnwrapDeepMethodWrappers() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void processOrderEvent(RichOrderEvent domainEvent) {
+                        OrderEvents eventType = wrap3(wrap2(wrap1(domainEvent.getType())));
+                        service.updateOrderState(eventType);
+                    }
+                    
+                    private OrderEvents wrap1(OrderEvents e) { return e; }
+                    private OrderEvents wrap2(OrderEvents e) { return e; }
+                    private OrderEvents wrap3(OrderEvents e) { return e; }
+                }
+                
+                class OrderService {
+                    public void updateOrderState(OrderEvents event) { }
+                }
+                
+                class RichOrderEvent {
+                    public OrderEvents getType() { return OrderEvents.CREATE; }
+                }
+                
+                enum OrderEvents { CREATE }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_test_deep_wrap");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        CallGraphBuilder builder = new CallGraphBuilder(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())
+            .as("Resolved event was: " + chain.getTriggerPoint().getEvent())
+            .containsExactlyInAnyOrder("OrderEvents.CREATE");
+    }
+
+    @Test
+    void shouldResolvePolymorphicInheritanceThroughDelegation() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void processOrderEvent(BaseEvent domainEvent) {
+                        service.updateOrderState(domainEvent.getType());
+                    }
+                }
+                
+                class OrderService {
+                    public void updateOrderState(OrderEvents event) {}
+                }
+                
+                interface BaseEvent {
+                    OrderEvents getType();
+                }
+                
+                abstract class AbstractEvent implements BaseEvent {
+                    protected OrderEvents internalGetType() {
+                        return OrderEvents.PAY;
+                    }
+                }
+                
+                class ConcreteEvent extends AbstractEvent {
+                    public OrderEvents getType() { 
+                        return internalGetType(); 
+                    }
+                }
+                
+                class AnotherConcreteEvent implements BaseEvent {
+                    public OrderEvents getType() {
+                        return delegateToHelper();
+                    }
+                    private OrderEvents delegateToHelper() {
+                        return OrderEvents.CANCELLED;
+                    }
+                }
+                
+                enum OrderEvents { PAY, CANCELLED }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_test_poly_delegation");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        CallGraphBuilder builder = new CallGraphBuilder(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("OrderEvents.PAY", "OrderEvents.CANCELLED");
+    }
+
+    @Test
+    void shouldHandleMissingImplementationsGracefully() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void processOrderEvent(UnknownEvent domainEvent) {
+                        service.updateOrderState(domainEvent.getType());
+                    }
+                }
+                
+                class OrderService {
+                    public void updateOrderState(OrderEvents event) {}
+                }
+                
+                // UnknownEvent is not defined in the source (e.g. from a third-party library)
+                
+                enum OrderEvents { CREATE }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_test_missing_impl");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        CallGraphBuilder builder = new CallGraphBuilder(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().getEvent()).isEqualTo("domainEvent.getType()");
+        assertThat(chain.getTriggerPoint().getPolymorphicEvents()).isNullOrEmpty();
+    }
+
+    @Test
+    void shouldTraceMultipleLocalVariableAssignments() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void processOrderEvent(RichOrderEvent domainEvent) {
+                        OrderEvents type1 = domainEvent.getType();
+                        OrderEvents type2 = type1;
+                        OrderEvents type3 = type2;
+                        service.updateOrderState(type3);
+                    }
+                }
+                
+                class OrderService {
+                    public void updateOrderState(OrderEvents event) {}
+                }
+                
+                class RichOrderEvent {
+                    public OrderEvents getType() { return OrderEvents.RECEIVED; }
+                }
+                
+                enum OrderEvents { RECEIVED }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_test_multiple_assign");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        CallGraphBuilder builder = new CallGraphBuilder(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("OrderEvents.RECEIVED");
+    }
+
+    @Test
+    void shouldResolveMethodInheritedFromAbstractBaseClass() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void processOrderEvent(BaseEvent domainEvent) {
+                        service.updateOrderState(domainEvent.getType());
+                    }
+                }
+                
+                class OrderService {
+                    public void updateOrderState(OrderEvents event) {}
+                }
+                
+                interface BaseEvent {
+                    OrderEvents getType();
+                }
+                
+                abstract class AbstractEvent implements BaseEvent {
+                    public OrderEvents getType() {
+                        return OrderEvents.PAY;
+                    }
+                }
+                
+                // Concrete subclass inherits getType() but doesn't override it!
+                class InheritingEvent extends AbstractEvent {
+                }
+                
+                enum OrderEvents { PAY }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_test_inherited");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        CallGraphBuilder builder = new CallGraphBuilder(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("OrderEvents.PAY");
+    }
+
+    @Test
+    void shouldStopTracingRecursiveMethodsGracefully() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void processOrderEvent(RecursiveEvent domainEvent) {
+                        service.updateOrderState(domainEvent.getType());
+                    }
+                }
+                
+                class OrderService {
+                    public void updateOrderState(OrderEvents event) {}
+                }
+                
+                class RecursiveEvent {
+                    public OrderEvents getType() {
+                        return this.getType();
+                    }
+                }
+                
+                enum OrderEvents { PAY }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_test_recursive");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        CallGraphBuilder builder = new CallGraphBuilder(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);
+        // Should safely complete without stack overflow and return an empty result
+        assertThat(chain.getTriggerPoint().getEvent()).isEqualTo("domainEvent.getType()");
+        assertThat(chain.getTriggerPoint().getPolymorphicEvents()).isEmpty();
+    }
+
+    @Test
+    void shouldHandleChainedMethodCallsGracefully() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void processOrderEvent(EventWrapper wrapper) {
+                        service.updateOrderState(wrapper.getEvent().getType());
+                    }
+                }
+                
+                class OrderService {
+                    public void updateOrderState(OrderEvents event) {}
+                }
+                
+                class EventWrapper {
+                    public RichEvent getEvent() { return new RichEvent(); }
+                }
+                
+                class RichEvent {
+                    public OrderEvents getType() { return OrderEvents.PAY; }
+                }
+                
+                enum OrderEvents { PAY }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_test_chained");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        CallGraphBuilder builder = new CallGraphBuilder(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);
+        // It might not fully resolve chained method calls, but it must not crash!
+        assertThat(chain.getTriggerPoint().getEvent()).isEqualTo("wrapper.getEvent().getType()");
+    }
+
+    @Test
+    void shouldTraceStaticFieldReferences() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private static final OrderEvents CONSTANT_EVENT = OrderEvents.CANCELLED;
+                    private OrderService service;
+                    public void processOrderEvent() {
+                        service.updateOrderState(CONSTANT_EVENT);
+                    }
+                }
+                
+                class OrderService {
+                    public void updateOrderState(OrderEvents event) {}
+                }
+                
+                enum OrderEvents { CANCELLED }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_test_static_field");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        CallGraphBuilder builder = new CallGraphBuilder(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().getEvent()).isEqualTo("OrderEvents.CANCELLED");
+    }
+
+    @Test
+    void shouldHandleAnonymousInnerClassesGracefully() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void processOrderEvent() {
+                        RichEvent event = new RichEvent() {
+                            public OrderEvents getType() {
+                                return OrderEvents.CREATE;
+                            }
+                        };
+                        service.updateOrderState(event.getType());
+                    }
+                }
+                
+                class OrderService {
+                    public void updateOrderState(OrderEvents event) {}
+                }
+                
+                interface RichEvent {
+                    OrderEvents getType();
+                }
+                
+                enum OrderEvents { CREATE }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_test_anonymous");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        CallGraphBuilder builder = new CallGraphBuilder(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);
+        // 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()");
+    }
+
+    @Test
+    void shouldLinkCallsInsideLambdasToEnclosingMethod() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void processOrderEvent() {
+                        Runnable r = () -> service.updateOrderState(OrderEvents.PAY);
+                        r.run();
+                    }
+                }
+                
+                class OrderService {
+                    public void updateOrderState(OrderEvents event) {}
+                }
+                
+                enum OrderEvents { PAY }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_test_lambda_scope");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        CallGraphBuilder builder = new CallGraphBuilder(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().getEvent()).isEqualTo("OrderEvents.PAY");
+    }
+
+    @Test
+    void shouldHandleTernaryOperatorsGracefully() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void processOrderEvent(boolean flag) {
+                        OrderEvents event = flag ? OrderEvents.PAY : OrderEvents.CANCELLED;
+                        service.updateOrderState(event);
+                    }
+                }
+                
+                class OrderService {
+                    public void updateOrderState(OrderEvents event) {}
+                }
+                
+                enum OrderEvents { PAY, CANCELLED }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_test_ternary");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        CallGraphBuilder builder = new CallGraphBuilder(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);
+        // It should gracefully fallback to the string representation of the ternary operator
+        assertThat(chain.getTriggerPoint().getEvent()).isEqualTo("flag ? OrderEvents.PAY : OrderEvents.CANCELLED");
+    }
+
+    @Test
+    void shouldTraceLastTextualAssignmentInTryCatchBlocks() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void processOrderEvent() {
+                        OrderEvents event;
+                        try {
+                            event = OrderEvents.PAY;
+                        } catch (Exception e) {
+                            event = OrderEvents.CANCELLED;
+                        }
+                        service.updateOrderState(event);
+                    }
+                }
+                
+                class OrderService {
+                    public void updateOrderState(OrderEvents event) {}
+                }
+                
+                enum OrderEvents { PAY, CANCELLED }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_test_try_catch");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        CallGraphBuilder builder = new CallGraphBuilder(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);
+        // The ASTVisitor picks up Assignments in textual order. 
+        // CANCELLED is the last one textually in the method.
+        assertThat(chain.getTriggerPoint().getEvent()).isEqualTo("OrderEvents.CANCELLED");
+    }
+
+    @Test
+    void shouldTraceArrayAndCollectionAccessGracefully() throws IOException {
+        String source = """
+                package com.example;
+                public class OrderController {
+                    private OrderService service;
+                    public void processOrderEvent() {
+                        OrderEvents[] events = new OrderEvents[]{OrderEvents.PAY};
+                        service.updateOrderState(events[0]);
+                    }
+                }
+                
+                class OrderService {
+                    public void updateOrderState(OrderEvents event) {}
+                }
+                
+                enum OrderEvents { PAY }
+                """;
+        Path tempDir = Files.createTempDirectory("callgraph_test_array");
+        Files.writeString(tempDir.resolve("OrderConfig.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        CallGraphBuilder builder = new CallGraphBuilder(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);
+        // 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]");
+    }
+}

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

@@ -45,6 +45,35 @@ public class GenericEventDetectorTest {
         assertThat(triggers.get(0).getMethodName()).isEqualTo("a");
     }
 
+    @Test
+    void testMessageBuilderIntermediateVariable(@TempDir Path tempDir) throws IOException {
+        Path dir = tempDir.resolve("com/example");
+        Files.createDirectories(dir);
+        Files.writeString(dir.resolve("MyService.java"),
+            "package com.example;\n" +
+            "import org.springframework.messaging.support.MessageBuilder;\n" +
+            "import org.springframework.messaging.Message;\n" +
+            "import org.springframework.statemachine.StateMachine;\n" +
+            "public class MyService {\n" +
+            "    private StateMachine<String, String> stateMachine;\n" +
+            "    private void a(MyInterface myEvent) {\n" +
+            "        MessageBuilder<MyInterface> messageBuilder = MessageBuilder.withPayload(myEvent).setHeader(\"k\", \"v\");\n" +
+            "        stateMachine.sendEvent(messageBuilder.build());\n" +
+            "    }\n" +
+            "}\n");
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        GenericEventDetector detector = new GenericEventDetector(context, new ConstantResolver(), List.of());
+        CompilationUnit cu = context.getCompilationUnits().iterator().next();
+        List<TriggerPoint> triggers = detector.detect(cu);
+
+        assertThat(triggers).hasSize(1);
+        assertThat(triggers.get(0).getEvent()).isEqualTo("myEvent");
+        assertThat(triggers.get(0).getMethodName()).isEqualTo("a");
+    }
+
     @Test
     void testEnumGetterUnionExtraction(@TempDir Path tempDir) throws IOException {
         Path dir = tempDir.resolve("com/example");

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

@@ -8,7 +8,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 17
+      "lineNumber" : 17,
+      "polymorphicEvents" : null
     }, {
       "event" : "PLACE_ORDER",
       "className" : "click.kamil.examples.enterprise.service.OrderServiceImpl",
@@ -17,7 +18,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 16
+      "lineNumber" : 16,
+      "polymorphicEvents" : null
     }, {
       "event" : "CANCEL_ORDER",
       "className" : "click.kamil.examples.enterprise.service.OrderServiceImpl",
@@ -26,7 +28,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 21
+      "lineNumber" : 21,
+      "polymorphicEvents" : null
     }, {
       "event" : "PAY_ORDER",
       "className" : "click.kamil.examples.enterprise.service.ReactivePaymentService",
@@ -35,7 +38,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 18
+      "lineNumber" : 18,
+      "polymorphicEvents" : null
     }, {
       "event" : "SHIP_ORDER",
       "className" : "click.kamil.examples.enterprise.messaging.ShippingJmsListener",
@@ -44,7 +48,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 17
+      "lineNumber" : 17,
+      "polymorphicEvents" : null
     }, {
       "event" : "RETURN_ORDER",
       "className" : "click.kamil.examples.enterprise.messaging.ReturnsRabbitListener",
@@ -53,7 +58,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 17
+      "lineNumber" : 17,
+      "polymorphicEvents" : null
     } ],
     "entryPoints" : [ {
       "type" : "REST",
@@ -185,7 +191,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 16
+        "lineNumber" : 16,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -219,7 +226,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 21
+        "lineNumber" : 21,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -248,10 +256,11 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 17
+        "lineNumber" : 17,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
-      "matchedTransitions" : [ ]
+      "matchedTransitions" : null
     }, {
       "entryPoint" : {
         "type" : "REST",
@@ -278,7 +287,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 18
+        "lineNumber" : 18,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -312,7 +322,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 17
+        "lineNumber" : 17,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -346,7 +357,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 17
+        "lineNumber" : 17,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {

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

@@ -8,7 +8,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 34
+      "lineNumber" : 34,
+      "polymorphicEvents" : null
     }, {
       "event" : "AUDIT_EVENT",
       "className" : "click.kamil.examples.statemachine.extended.web.AuditInterceptor",
@@ -17,7 +18,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 16
+      "lineNumber" : 16,
+      "polymorphicEvents" : null
     }, {
       "event" : "EXTERNAL_TRIGGER",
       "className" : "click.kamil.examples.statemachine.extended.service.OrderService",
@@ -26,7 +28,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 19
+      "lineNumber" : 19,
+      "polymorphicEvents" : null
     }, {
       "event" : "SUBMIT_EVENT",
       "className" : "click.kamil.examples.statemachine.extended.service.OrderService",
@@ -35,7 +38,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 20
+      "lineNumber" : 20,
+      "polymorphicEvents" : null
     }, {
       "event" : "CANCEL_EVENT",
       "className" : "click.kamil.examples.statemachine.extended.service.OrderService",
@@ -44,7 +48,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 25
+      "lineNumber" : 25,
+      "polymorphicEvents" : null
     }, {
       "event" : "[LIFECYCLE:RESTORE]",
       "className" : "click.kamil.examples.statemachine.extended.service.OrderService",
@@ -53,7 +58,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 29
+      "lineNumber" : 29,
+      "polymorphicEvents" : null
     }, {
       "event" : "REACTIVE_EVENT",
       "className" : "click.kamil.examples.statemachine.extended.service.ReactiveOrderService",
@@ -62,7 +68,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 18
+      "lineNumber" : 18,
+      "polymorphicEvents" : null
     } ],
     "entryPoints" : [ {
       "type" : "REST",
@@ -160,7 +167,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 19
+        "lineNumber" : 19,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -190,7 +198,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 20
+        "lineNumber" : 20,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -220,7 +229,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 25
+        "lineNumber" : 25,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -250,7 +260,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 34
+        "lineNumber" : 34,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -284,10 +295,11 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 29
+        "lineNumber" : 29,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : "orderId",
-      "matchedTransitions" : [ ]
+      "matchedTransitions" : null
     }, {
       "entryPoint" : {
         "type" : "REST",
@@ -314,7 +326,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 18
+        "lineNumber" : 18,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -343,7 +356,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 16
+        "lineNumber" : 16,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {

state_machine_exporter/src/test/resources/golden/ExtendedStateMachineConfig_PROD/ExtendedStateMachineConfig.json

@@ -8,7 +8,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 34
+      "lineNumber" : 34,
+      "polymorphicEvents" : null
     }, {
       "event" : "AUDIT_EVENT",
       "className" : "click.kamil.examples.statemachine.extended.web.AuditInterceptor",
@@ -17,7 +18,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 16
+      "lineNumber" : 16,
+      "polymorphicEvents" : null
     }, {
       "event" : "EXTERNAL_TRIGGER",
       "className" : "click.kamil.examples.statemachine.extended.service.OrderService",
@@ -26,7 +28,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 19
+      "lineNumber" : 19,
+      "polymorphicEvents" : null
     }, {
       "event" : "SUBMIT_EVENT",
       "className" : "click.kamil.examples.statemachine.extended.service.OrderService",
@@ -35,7 +38,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 20
+      "lineNumber" : 20,
+      "polymorphicEvents" : null
     }, {
       "event" : "CANCEL_EVENT",
       "className" : "click.kamil.examples.statemachine.extended.service.OrderService",
@@ -44,7 +48,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 25
+      "lineNumber" : 25,
+      "polymorphicEvents" : null
     }, {
       "event" : "[LIFECYCLE:RESTORE]",
       "className" : "click.kamil.examples.statemachine.extended.service.OrderService",
@@ -53,7 +58,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 29
+      "lineNumber" : 29,
+      "polymorphicEvents" : null
     }, {
       "event" : "REACTIVE_EVENT",
       "className" : "click.kamil.examples.statemachine.extended.service.ReactiveOrderService",
@@ -62,7 +68,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 18
+      "lineNumber" : 18,
+      "polymorphicEvents" : null
     } ],
     "entryPoints" : [ {
       "type" : "REST",
@@ -160,7 +167,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 19
+        "lineNumber" : 19,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -190,7 +198,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 20
+        "lineNumber" : 20,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -220,7 +229,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 25
+        "lineNumber" : 25,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -250,7 +260,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 34
+        "lineNumber" : 34,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -284,10 +295,11 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 29
+        "lineNumber" : 29,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : "orderId",
-      "matchedTransitions" : [ ]
+      "matchedTransitions" : null
     }, {
       "entryPoint" : {
         "type" : "REST",
@@ -314,7 +326,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 18
+        "lineNumber" : 18,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -343,7 +356,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 16
+        "lineNumber" : 16,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {

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

@@ -8,7 +8,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 15
+      "lineNumber" : 15,
+      "polymorphicEvents" : null
     } ],
     "entryPoints" : [ {
       "type" : "REST",
@@ -55,7 +56,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 15
+        "lineNumber" : 15,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {

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

@@ -8,7 +8,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 40
+      "lineNumber" : 40,
+      "polymorphicEvents" : null
     }, {
       "event" : "ORDER_EVENT",
       "className" : "click.kamil.maven.core.MavenOrderStateMachine.OrderService",
@@ -17,7 +18,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 52
+      "lineNumber" : 52,
+      "polymorphicEvents" : null
     } ],
     "entryPoints" : [ {
       "type" : "REST",
@@ -103,7 +105,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 40
+        "lineNumber" : 40,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {

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

@@ -8,7 +8,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 18
+      "lineNumber" : 18,
+      "polymorphicEvents" : null
     } ],
     "entryPoints" : [ {
       "type" : "REST",
@@ -67,7 +68,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 18
+        "lineNumber" : 18,
+        "polymorphicEvents" : null
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {

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

@@ -8,7 +8,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 25
+      "lineNumber" : 25,
+      "polymorphicEvents" : null
     }, {
       "event" : "eventProvider",
       "className" : "click.kamil.service.StateMachineServiceImpl",
@@ -17,7 +18,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 50
+      "lineNumber" : 50,
+      "polymorphicEvents" : null
     }, {
       "event" : "customMessage",
       "className" : "click.kamil.service.StateMachineServiceImpl",
@@ -26,7 +28,8 @@
       "sourceModule" : null,
       "stateMachineId" : null,
       "sourceState" : null,
-      "lineNumber" : 78
+      "lineNumber" : 78,
+      "polymorphicEvents" : null
     } ],
     "entryPoints" : [ {
       "type" : "REST",
@@ -140,7 +143,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 25
+        "lineNumber" : 25,
+        "polymorphicEvents" : [ ]
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -170,7 +174,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 25
+        "lineNumber" : 25,
+        "polymorphicEvents" : [ ]
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -200,7 +205,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 25
+        "lineNumber" : 25,
+        "polymorphicEvents" : [ ]
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -234,7 +240,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 25
+        "lineNumber" : 25,
+        "polymorphicEvents" : [ ]
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -268,7 +275,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 78
+        "lineNumber" : 78,
+        "polymorphicEvents" : [ ]
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -302,7 +310,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 25
+        "lineNumber" : 25,
+        "polymorphicEvents" : [ ]
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {
@@ -336,7 +345,8 @@
         "sourceModule" : null,
         "stateMachineId" : null,
         "sourceState" : null,
-        "lineNumber" : 50
+        "lineNumber" : 50,
+        "polymorphicEvents" : [ ]
       },
       "contextMachineId" : null,
       "matchedTransitions" : [ {

state_machine_exporter_html/src/main/java/click/kamil/springstatemachineexporter/html/Main.java

@@ -13,6 +13,14 @@ import java.util.List;
 
 public class Main {
     public static void main(String[] args) {
+        // Enable diagnostic mode early before SLF4J initializes
+        for (String arg : args) {
+            if ("--debug".equals(arg)) {
+                System.setProperty("org.slf4j.simpleLogger.defaultLogLevel", "debug");
+                break;
+            }
+        }
+
         // Wiring including the specialized HTML exporter
         var exporters = List.of(new PlantUml(), new Dot(), new Scxml(), new JsonExporter(), new HtmlExporter());
         var exportService = new ExportService(exporters);

state_machine_exporter_html/src/main/java/click/kamil/springstatemachineexporter/html/command/HtmlExporterCommand.java

@@ -59,11 +59,19 @@ public class HtmlExporterCommand implements Callable<Integer> {
     @Option(names = {"--no-metadata-pane"}, description = "Disable rendering the left metadata pane (entry points, flows) in the HTML viewer.")
     private boolean noMetadataPane;
 
+    @Option(names = {"--debug"}, description = "Enable diagnostic mode to show unresolved call chains and detailed analysis logging.", defaultValue = "false")
+    private boolean debug;
+
     @Override
     public Integer call() throws Exception {
         var out = spec.commandLine().getOut();
         var err = spec.commandLine().getErr();
 
+        if (debug) {
+            System.setProperty("org.slf4j.simpleLogger.defaultLogLevel", "debug");
+            out.println(CommandLine.Help.Ansi.AUTO.string("@|bold,cyan Diagnostic mode enabled|@"));
+        }
+
         if (inputDir == null && jsonFile == null) {
             inputDir = Path.of(".");
         }