the org.jbpm.db.hibernate.Converters class has a method initConvertionMaps() which is called by three other methods.
initConvertionMaps() is not synched on anything and if call concurrently seems to be causing 'duplicate converter id' runtime exceptions. (I haven't traced it completely yet.)
Is this a known problem? Is it a problem at all? Any opinions?
(This only happens during startup, so one could say technically not critical, but the admin guys read logs and tell the app guys etc. etc.)
This is a known problem and fixed in the beta releases of jbpm 3.1.