https://bugs.documentfoundation.org/show_bug.cgi?id=156648
--- Comment #5 from Matt K <matt...@gmail.com> --- The problem is that createUnoListener doesn't return anything. You should check existence of the return value before adding it as a listener. That said, the LO code shouldn't allow an empty listener. Code fix for that coming shortly. -- You are receiving this mail because: You are the assignee for the bug.