Segfault on call abstract method

[Thrameos]

In order to allow jpype to call the method on a base class the method lookup calls invoke with an option to not call anything deeper than requested method. This is fine unless somehow you manage to invoke an abstract method. This currently goes down in flames on the develop branch while handling the exception on the java side.

Tasks:

• Test this on master
• Stop the segfault.
• Add to test cases.