Listener Metric error : Exception: : java.lang.IllegalThreadStateException: process has not exited

Hello,

Several times per day we received Metric error concerning a listener.

The complete error message is : Metric evaluation error start - oracle.sysman.emSDK.agent.fetchlet.exception.FetchletException: Exception: : java.lang.IllegalThreadStateException: process has not exited

OMS Version is 13.4 and Agent version is 13.3

Did someone has already hit this error ? How can we fix it ?

Thanks,

Gilles.