Bug 98487 TypedElementSelectionValidator.isSelectedValid got removed
20050606 Several subclasses of TypedElementSelectionValidator override isSelectedValid, but it doesn't exist anymore in TypedElementSelectionValidator. I suggest to add it again for RC2, the checks implemented in the subclasses make sense.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/TypedElementSelectionValidator.java
if (fAcceptedTypes[i].isInstance(o)) {
				return true;
			}
		}
		return false;
	}
	
	private boolean isRejectedElement(Object elem) {
		return (fRejectedElements != null) && fRejectedElements.contains(elem);
	}
	
	private boolean isValid(Object[] selection) {
		if (selection.length == 0) {
			return false;
		}
		
		if (!fAllowMultipleSelection && selection.length != 1) {
			return false;
		}
		
		for (int i= 0; i < selection.length; i++) {
			Object o= selection[i];	
			if (!isOfAcceptedType(o) || isRejectedElement(o)) {
				return false;
			}
		}
		return true;
	}
}