New submission from Alex Grönholm <alex.gronholm+jython@...>:
In some circumstances, a Python method that overrides a Java method can get null instead of None passed to it, which obviously should never happen. In the attached source code, the problem only occurs if both the model and cell renderer are set to Python class instances.
title: null passed to Python method instead of None
Added file: http://bugs.jython.org/file1028/jytree.py
Jython tracker <report@...>