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CWWKZ002E headRegion must not be null


Bryant Lane (2611) | asked Jun 26 '18, 2:54 p.m.

Recently had a power outage and my Jazz Team Server is down.  When the applications load, it produces the error:

[ERROR  ] CWWKZ002E: An exception occurred while starting the application X.  The exception message was: com.ibm.ws.container.service.MetaDataException: java.lang.IllegalArgumentException: The headRegion must not be null.

X = the application (e.g. jts, qm, dm, etc.)

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Bryant Lane (2611) | answered Jul 05 '18, 2:48 p.m.

 I resolved this with the IBM helpdesk, here is the attempts and resolution:

Attempt: c:...\server.startup.bat -clean feature, but it did not resolve the headRegion issue.


Fix: 
Backup c:\Program Files\IBM\JazzTeamServer\server\liberty\servers folder
Run server.startup.bat, wait for it to reconfigure the CLM
Run server.shutdown.bat after CLM starts and you can get to the authentication page (https://DOMAIN:PORT/APP)
Replace the c:...\servers\conf folder with the backup files.  You'll need this for your user database.

Ralph Schoon selected this answer as the correct answer

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Guido Schneider (3.4k1490115) | answered Jun 08 '19, 10:32 a.m.

 I had this problem yesterday.

 

The fix was similar, bus a bit different. <o:p> </o:p>

- stop the service (if not already stopped) <o:p> </o:p>

- rename c:\Program Files\IBM\JazzTeamServer\server\liberty\servers folder <o:p> </o:p>

- Run server.startup.bat, wait for it to reconfigure the CLM <o:p> </o:p>

- Run server.shutdown.bat after CLM starts <o:p> </o:p>

- copy the config files from clm folder out the renamed servers folder to the new clm folder in the new servers folder. <o:p> </o:p>

e.g. bootstrap.properties, jvm.options, server.xml, maybe some more depending of your config <o:p> </o:p>

- start the service <o:p> </o:p>

<o:p>   </o:p>

Another idea maybe just to delete the workarea folder in servers\clm folder. <o:p> </o:p>


Comments
Liam Doherty commented Jul 29 '20, 3:04 a.m.
JAZZ DEVELOPER

The last line worked for me on a EWM server running on z/OS. Rename the workarea folder and the server came up.


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Don Yang (7.7k21110139) | answered Jun 26 '18, 8:34 p.m.
edited Jun 26 '18, 8:36 p.m.

Are you using Liberty or not?
According to the post:
https://developer.ibm.com/answers/questions/372957/i-had-a-server-power-outage-affecting-netcool-impa.html

Liberty Java class could be corrupted due to the power failure.
Based on the above suggestion, you may try:

1) Stop the Liberty Server

2) Restart the server with the --clean option

installeddir/ wlp/bin/./server start --clean

3) After it has restarted you can stop the server again

installeddir/ wlp/bin/./server stop

or kill the process

4) Start the servers as normal

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