The jvm_monitor probe is alarms similar to the following
The probe internal used memory 501760KB (196%) is >= 100.0% of 256000KB
By default the jvm_monitor probe has a max memory limit of 256000KB (256MB)
If the total memory used by the probe (Heap and Non Heap) exceeds this limit then the probe generates the above alarm and restarts
The jvm_monitor probe creates a child process for each jvm that you monitor but this child process by default does not have any heap space setting.
When a jvm is launched without any heap settings it is allowed to use 1/64 of system memory.
Therefore, if your server has 32GB RAM, then the child process is allowed to use up to 512MB.
This exceeds the internal memory usage limit in the probe, so it raises the alarm and restarts the probe.
You can configure the HEAP setting for the child jvm processes. This is documented here
In addition you can increase the Internal limit for the probe. To do so