Cannot Produce a JVM Thread Dump After Server Crash

Description

If the Application Server crashes, the server dumps a core file and, by default, restarts with the -Xrs flag, which prevents the dump of a JVM thread dump.

Solution

To enable a JVM thread dump

Steps

1. Comment out the -Xrs flag in the server.xml file for the Application Server.

2. Kill the server process (kill -3 on UNIX; Ctrl+Break on Windows).