in order to get a stable environment for JBoss please go to this url
and vote for this bug so that SUN starts soon to fix it. Eventually you need to register an account.
We are running our application.ear on JBoss 3.2.2 and Sun JDK 1.3.1_09 on Win2k. However, we are getting the JVM crash with all 1.3 versions on Win and Linux.
this bug is now second on the Top 25 list. I hope SUN will soon(er) start to fix the bug.
The toppest one is obviously submitted by the JBoss team.