JMC agent does not allow modification of the event signature by modifying the preset XML file and re-injecting it. and this results in the crash of target JVM (Existing Bug : JMC-7364)

But it allows adding new events with the help of a brand new present XML file, However, in this scenario, the already injected events get removed from JVM.

1. Prepare 2 XML files for events a, b respectively.

2. Inject a.xml (that contains event a) to  target JVM

3. Inject b.xml after a while to the target JVM

4. after injecting b.xml, event a is no longer triggered in the target JVM.