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
boolean suggestVariableProposals= true;
		int typeKind= 0;
		while (selectedNode instanceof ParenthesizedExpression) {
			selectedNode= ((ParenthesizedExpression) selectedNode).getExpression();
		}
		Name node= null;
		switch (selectedNode.getNodeType()) {
			case ASTNode.SIMPLE_NAME:
				node= (SimpleName) selectedNode;
				ASTNode parent= node.getParent();
				StructuralPropertyDescriptor locationInParent= node.getLocationInParent();
				if (locationInParent == MethodInvocation.EXPRESSION_PROPERTY) {
					typeKind= SimilarElementsRequestor.CLASSES;
				} else if (locationInParent == FieldAccess.NAME_PROPERTY) {
					Expression expression= ((FieldAccess) parent).getExpression();
					if (expression != null) {
						binding= expression.resolveTypeBinding();
						if (binding == null) {
							node= null;
						}
					}
				} else if (parent instanceof SimpleType) {
					suggestVariableProposals= false;
					typeKind= SimilarElementsRequestor.REF_TYPES;
				} else if (parent instanceof QualifiedName) {
					Name qualifier= ((QualifiedName) parent).getQualifier();
					if (qualifier != node) {
						binding= qualifier.resolveTypeBinding();
					} else {
						typeKind= SimilarElementsRequestor.REF_TYPES & ~SimilarElementsRequestor.VARIABLES;