User development, A new message was posted in the thread "A question about JVM activ thread count": http://community.jboss.org/message/521131#521131 Author : Peter Johnson Profile : http://community.jboss.org/people/peterj Message: -------------------------------------------------------------- Without knowing how that tool calculates the active thread count, and without knowing what is going on in the application server at that time, I am afraid I cannot help you.   You might try taking a thread dump (or several spaced a few seconds apart) and look at those dumps to see if they tell you anything. Identifying the "active" threads is always the key - perhaps you have some errant piece of code the spawns threads and that code gets into a loop? -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/521131#521131