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
binding= var.getDeclaringMethod();
			if (binding == null) {
				binding= var.getDeclaringClass();
			}
		}
		if (binding instanceof IMethodBinding) {
			if (binding == typeVariable.getDeclaringMethod()) {
				return true;
			}
			binding= ((IMethodBinding) binding).getDeclaringClass();
		}
		while (binding instanceof ITypeBinding) {
			if (binding == typeVariable.getDeclaringClass()) {
				return true;
			}
			if (Modifier.isStatic(binding.getModifiers())) {
				break;
			}
			binding= ((ITypeBinding) binding).getDeclaringClass();
		}
		return false;
	}
	public static boolean isUseableTypeInContext(ITypeBinding[] binding, IBinding context, boolean noWildcards) {
		for (int i= 0; i < binding.length; i++) {
			if (!isUseableTypeInContext(binding[i], context, noWildcards)) {
				return false;
			}
		}
		return true;
	}