Weblogic Server is getting crashed while updating the mapviewer on solaris platform.
According to our logs JVM crashed exactly during zipfile processing of this mapcache.jar.
As we are using exploded ear deployment mentioned in the mapviewer documentation, the files in the location mapviewer.ear/WEB-INF/lib which is in use is being modified
and when tried to be redeployed causing this JVM crash.
Now the reason for the mapviewer.ear/WEB-INF/lib files are in use is thought to be because of the exploded ear deployment format of mapviewer.
According to weblogic they have seen issues when using a exploded ear format of deployment and they have made recommendation not to use.
As a workaround we have Undeploy the mapviewer before the start of upgrade .With this approach the upgrade went through without any errors.
Any pointer would be helpful resolve this issue of upgrading mapviewer.