Error in javassist.compiler.TypeChecker

[mpresley]

Noticed that if a TypeChecker is ever created for java.lang.Object that it will throw a NullPointerException if TypeChecker.getSuperName(..) is ever called.

Found this out 'cause I'm trying to create an implementation for hashCode() in an object that directly subclasses java.lang.Object. The body I'm creating for the overriding definition of hashCode invokes super.hashCode(). The javassist compiler is choking because a TypeChecker for java.lang.Object is created and TyperChecker.atKeyword(..) is finding the "super" keyword but somehow the "thisClass" attributte is set to java.lang.Object. This utlimately leads to NullPointerException. Seems like "thisClass" should not be java.lang.Object. Is there something I'm missing here?

In any case, something more polite than NullPointerException might be considered.

Thanks,
Matt

[mpresley]

Don't mind me. I figured out that the MtMethod I was doing setBody(..) on was from java.lang.Object, so putting in a method body that invoked super was a losing proposition.

However, I would still recommend something a little more overt than ultimately a NullPointerException.

[chiba]

I modified Javassist so that an error message is thrown instead of NullPointerException.

Thanks for your suggestion.