Bug 96926 [quick fix] Change method return type quick fix gives invalid proposal for wildcard types
Against I20050527-0010: Code: void a() { ArrayList<? extends Number> b = null; return b.get(0); } Ask for a quick fix on the compile error. Three things happen: 1) BAD: The quick fix is entitled "Change method return type to '? extends Number'". 2) GOOD: The correct return type, Number, is shown originally. 3) BAD: However, the top completion proposal, and the one chosen if the user simply hits return, is "? extends Number", which creates a compile error.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/correction/UnresolvedElementsSubProcessor.java
addNewMethodProposals(cu, astRoot, sender, arguments, isSuperInvocation, invocationNode, methodName, proposals);
		if (!isOnlyParameterMismatch && !isSuperInvocation && sender != null) {
			addMissingCastParentsProposal(cu, (MethodInvocation) invocationNode, proposals);
		}
		if (!isSuperInvocation && sender == null && invocationNode.getParent() instanceof ThrowStatement) {
			String str= "new ";   
			String label= CorrectionMessages.UnresolvedElementsSubProcessor_addnewkeyword_description;
			int relevance= Character.isUpperCase(methodName.charAt(0)) ? 7 : 4;
			ReplaceCorrectionProposal proposal= new ReplaceCorrectionProposal(label, cu, invocationNode.getStartPosition(), 0, str, relevance);
			proposals.add(proposal);
		}
	}
	private static void addNewMethodProposals(ICompilationUnit cu, CompilationUnit astRoot, Expression sender, List arguments, boolean isSuperInvocation, ASTNode invocationNode, String methodName, Collection proposals) throws JavaModelException {
		ITypeBinding nodeParentType= Bindings.getBindingOfParentType(invocationNode);
		ITypeBinding binding= null;
		if (sender != null) {
			binding= sender.resolveTypeBinding();
		} else {
			binding= nodeParentType;
			if (isSuperInvocation && binding != null) {
				binding= binding.getSuperclass();
			}
		}
		if (binding != null && binding.isFromSource()) {
			ITypeBinding senderDeclBinding= binding.getTypeDeclaration();
			ICompilationUnit targetCU= ASTResolving.findCompilationUnitForBinding(cu, astRoot, senderDeclBinding);
			if (targetCU != null) {
				String label;
				Image image;
				ITypeBinding[] parameterTypes= getParameterTypes(arguments);