### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core
Index: compiler/org/eclipse/jdt/internal/compiler/lookup/Scope.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/lookup/Scope.java,v
retrieving revision 1.307
diff -u -r1.307 Scope.java
--- compiler/org/eclipse/jdt/internal/compiler/lookup/Scope.java	16 May 2007 20:49:40 -0000	1.307
+++ compiler/org/eclipse/jdt/internal/compiler/lookup/Scope.java	21 May 2007 19:30:24 -0000
@@ -2536,12 +2536,12 @@
 			nextCandidate: for (int k = 0, max = mecs.length; k < max; k++) {
 				TypeBinding mec = mecs[k];
 				if (mec == null) continue nextCandidate;
-				Set invalidInvocations = (Set) invocations.get(mec);
+				List invalidInvocations = (List) invocations.get(mec);
 				int invalidSize = invalidInvocations.size();
 				if (invalidSize > 1) {
-					TypeBinding[] collisions;
-					invalidInvocations.toArray(collisions = new TypeBinding[invalidSize]);
-					problemReporter().superinterfacesCollide(collisions[0].erasure(), typeRef, collisions[0], collisions[1]);
+					TypeBinding firstInvocation = (TypeBinding) invalidInvocations.get(0);
+					TypeBinding secondInvocation = (TypeBinding) invalidInvocations.get(1);
+					problemReporter().superinterfacesCollide(firstInvocation.erasure(), typeRef, firstInvocation, secondInvocation);
 					type.tagBits |= TagBits.HierarchyHasProblems;
 					return true;
 				}
@@ -2756,7 +2756,7 @@
 		return false;
 	}
 
-	private TypeBinding leastContainingInvocation(TypeBinding mec, Set invocations, List lubStack) {
+	private TypeBinding leastContainingInvocation(TypeBinding mec, List invocations, List lubStack) {
 		if (invocations == null) return mec; // no alternate invocation
 		int length = invocations.size();
 		Iterator iter = invocations.iterator();
@@ -2928,7 +2928,7 @@
 		for (int i = 0; i < length; i++) {
 			TypeBinding mec = mecs[i];
 			if (mec == null) continue;
-			mec = leastContainingInvocation(mec, (Set)invocations.get(mec), lubStack);
+			mec = leastContainingInvocation(mec, (List)invocations.get(mec), lubStack);
 			if (mec == null) return null;
 			int dim = mec.dimensions();
 			if (commonDim == -1) {
@@ -3001,7 +3001,7 @@
 		TypeBinding leafType = firstType.leafComponentType();
 		TypeBinding firstErasure = (leafType.isTypeVariable() || leafType.isWildcard()/*&& !leafType.isCapture()*/) ? firstType : firstType.erasure();
 		if (firstErasure != firstType) {
-			Set someInvocations = new HashSet(1);
+			List someInvocations = new ArrayList(1);
 			someInvocations.add(firstType);
 			allInvocations.put(firstErasure, someInvocations);
 		}						
@@ -3063,7 +3063,7 @@
 						max++;
 						TypeBinding superTypeErasure = (firstBound.isTypeVariable() || firstBound.isWildcard() /*&& !itsInterface.isCapture()*/) ? superType : superType.erasure();
 						if (superTypeErasure != superType) {
-							Set someInvocations = new HashSet(1);
+							List someInvocations = new ArrayList(1);
 							someInvocations.add(superType);
 							allInvocations.put(superTypeErasure, someInvocations);
 						}						
@@ -3082,7 +3082,7 @@
 						max++;
 						TypeBinding superTypeErasure = (itsInterface.isTypeVariable() || itsInterface.isWildcard() /*&& !itsInterface.isCapture()*/) ? superType : superType.erasure();
 						if (superTypeErasure != superType) {
-							Set someInvocations = new HashSet(1);
+							List someInvocations = new ArrayList(1);
 							someInvocations.add(superType);
 							allInvocations.put(superTypeErasure, someInvocations);
 						}						
@@ -3097,7 +3097,7 @@
 					max++;
 					TypeBinding superTypeErasure = (itsSuperclass.isTypeVariable() || itsSuperclass.isWildcard() /*&& !itsSuperclass.isCapture()*/) ? superType : superType.erasure();
 					if (superTypeErasure != superType) {
-						Set someInvocations = new HashSet(1);
+						List someInvocations = new ArrayList(1);
 						someInvocations.add(superType);
 						allInvocations.put(superTypeErasure, someInvocations);
 					}
@@ -3128,9 +3128,14 @@
 						continue nextSuperType;
 					}
 					// record invocation
-					Set someInvocations = (Set) allInvocations.get(erasedSuperType);
-					if (someInvocations == null) someInvocations = new HashSet(1);
-					someInvocations.add(match);
+					List someInvocations = (List) allInvocations.get(erasedSuperType);
+					if (someInvocations == null) {
+						someInvocations = new ArrayList(1);
+						someInvocations.add(match);
+					} else {
+						// using a list to record invocations in order (188103)
+						if (!someInvocations.contains(match)) someInvocations.add(match);
+					}
 					allInvocations.put(erasedSuperType, someInvocations);
 				}
 				continue nextOtherType;
@@ -3154,9 +3159,14 @@
 					}
 				}
 				// record invocation
-				Set someInvocations = (Set) allInvocations.get(erasedSuperType);
-				if (someInvocations == null) someInvocations = new HashSet(1);
-				someInvocations.add(match);
+				List someInvocations = (List) allInvocations.get(erasedSuperType);
+				if (someInvocations == null) {
+					someInvocations = new ArrayList(1);
+					someInvocations.add(match);
+				} else {
+					// using a list to record invocations in order (188103)
+					if (!someInvocations.contains(match)) someInvocations.add(match);
+				}
 				allInvocations.put(erasedSuperType, someInvocations);
 			}				
 		}