On all systems, you can change a user-defined extension file by completing the following steps.
These two approaches should be used with caution, because any execution group that is connected to the same broker also detects the new .lil, .pdb, and .jar files when that execution group is restarted, or when something is first deployed to it. If you restart the broker, you ensure that anyone with an interest in a particular execution group is made aware that recent changes have been made to the broker.
These two situations assume that you have used either the mqsichangebroker command or the mqsicreatebroker command to notify the broker of the directory in which the user-defined extension files have been placed.