forks work

src/main/java/com/example/statemachinedemo/Transition.java

@@ -11,8 +11,8 @@ import java.util.List;
 @ToString
 public class Transition {
     public String type;         // withExternal, withChoice, withInternal, etc.
-    public String sourceState;
-    public String targetState;
+    public List<String> sourceStates = new ArrayList<>();
+    public List<String> targetStates = new ArrayList<>();
     public String event;
 
     public String guard;
@@ -22,4 +22,5 @@ public class Transition {
     public List<Boolean> isLambdaActions = new ArrayList<>();
 
     public Integer order = null;  // optional order for withChoice or withJunction
+
 }