we have a running Groupwise Server on Windows Server 2012 R2 STD with GW14.2.0.

Now we will install the 14.2.1HP1 Update on that Server.
After install the "Groupwise Server" from 14.2.1hp1 the Windows Service gwadmin will not start again.
This is the error what Windows logs during starting the Service:
Request stop of service gwadmin. No action is required as programm jre\bin\java.exe is not running.
I hope someone can help me to find the problem.