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/ASTResolving.java
private final TypeBindingVisitor fVisitor;
		
		private static class VisitCancelledException extends RuntimeException {
			private static final long serialVersionUID= 1L;
		}
		public AllBindingsVisitor(TypeBindingVisitor visitor) {
			super(true);
			fVisitor= visitor;
		}
		public boolean visit(SimpleName node) {
			ITypeBinding binding= node.resolveTypeBinding();
			if (binding != null) {
				boolean res= fVisitor.visit(binding);
				if (res) {
					res= Bindings.visitHierarchy(binding, fVisitor);
				}
				if (!res) {
					throw new VisitCancelledException();
				}
			}
			return false;
		}
	}
	public static IBinding getParentMethodOrTypeBinding(ASTNode node) {
		do {
			if (node instanceof MethodDeclaration) {