For reasons I am not going into, I am implementing my own AnnotationInvocationHandler and I want it to be compatible to the OpenJDK's annotation invocation handler with respect to the hash code and equals functionality, thus I just looked at the source in more detail. During implementing the handler, I realized that:
1. The invoke method applies a null check for an annotation value when looking it up for explicitly reading an annotation property and throws an IncompleteAnnotationException if no value and no default value is provided. 2. No such checks are applied when invoking the hashCode / equals / toString methods for the annotation which all have their own handler method. This would result in a NullPointerException for all of them. I did not find any formal specification for what is supposed to happen. Is it correct to throw these exceptions or should it rather also be an IncompleteAnnotationException? Thanks for the info! Rafael
