When we restart or connect a Windows slave, the master shuts down. This doesn't happen consistently, but now that we are restarting the slaves over night, the master is down pretty much every morning.

The master log just says:

Aug 16, 2017 4:41:48 AM winstone.Logger logInternal
INFO: JVM is terminating. Shutting down Winstone

No exception or other error.

We had this issue for some time which happened sporadically, when connecting a Windows slave.

Our Windows slaves are on Windows 7 64bit and uses the Jenkins agent installed as a service. When we restart the machine, the node is not brought temporary offline, that is, it goes offline because the slave is disconnected, then comes back online by itself. I wonder is that could be an issue?

How can I get more information on why the JVM is shutting down?