This refers to release 0.9.8, in-memory implementation (although I doubt it has influence on the bug).
I use TMAPI interface. If it is attempted to create a TopicName with exactly the same value as previously removed TopicName (using Topic.createTopicName(String, Collection)), a RuntimeException is thrown, which is initiated by a NullPointerException.
As far as I could infer, it has...
2007-07-08 16:40:22 UTC in TM4J