Error details: Failed to obtain WLS Edit lock; it is currently held by user weblogic. This indicates that you have either started a WLS change and forgotten to activate it, or another user is performing WLS changes which have yet to be activated. The WLS Edit lock can be released by logging into WLS console and either releasing the lock or activating the pending WLS changes.
To resolve above issue
a) Login into the admin console as user weblogic:
http://yourhost:port/console (note: this is different from SB console which is /sbconsole)
b) It should show pending changes on the left hand side of the screen, just click Release Configuration.
c) If you still encounter same issue, delete the lok file at $DOMAIN_HOME/edit.lok and then try again . .