There were a few memory leak problems with
jbossmq prior to 3.0.4, most notably using selectors.
From 3.0.7 there will be an improved message cache
implementation that copes better with large throughputs.
Will JBoss 3.0.7 be built to run on the IBM JVM?
Right now 3.0.5 and 3.0.6 do not run on IBM's JVM. There have been a lot of complaints about this recently, since the solution (so I've read) is to build the JBoss source yourself using the Sun JDK 1.3. Then JBoss will run on the IBM JVM.