OTM java.lang.NullPointerException

In OTM we got this error reported by end users:

On many screens for example User Manager > New Button > key in all details > Click Finish.

Users Finder > Results

Results
Errors
Create Another Modify Another

Error

java.lang.NullPointerException

Stack Trace
java.lang.NullPointerException

java.lang.NullPointerException
at glog.util.jdbc.noserver.T2SharedConnection$ReferencedConnection.setAutoCommit(T2SharedConnection.java:421)
at glog.util.jdbc.noserver.T2SharedConnection$ReferencedConnection.release(T2SharedConnection.java:326)
at glog.util.jdbc.noserver.T2SharedConnection.close(T2SharedConnection.java:61)
at glog.database.security.dbrealm.RdbmsRealm.createUser(RdbmsRealm.java:642)
at glog.database.security.dbrealm.RdbmsRealm.createUser(RdbmsRealm.java:652)
at glog.database.security.dbrealm.CachingRealm.newUser(CachingRealm.java:483)
at glog.database.security.SecurityUserImpl.create(SecurityUserImpl.java:65)
at glog.database.security.SecurityUtil.createUser(SecurityUtil.java:52)
at glog.database.security.SecuritySessionBean.createUser(SecuritySessionBean.java:40)
at glog.database.security.SecuritySessionServerSideEJBWrapper.createUser(SecuritySessionServerSideEJBWrapper.java:167)
at glog.database.security.SecuritySessionHome_snlvan_EOImpl.createUser(SecuritySessionHome_snlvan_EOImpl.java:5947)
at glog.database.security.SecuritySessionHome_snlvan_EOImpl_WLSkel.invoke(Unknown Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:589)
at weblogic.rmi.cluster.ClusterableServerRef.invoke(ClusterableServerRef.java:230)
at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:477)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:147)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:473)
at weblogic.rmi.internal.wls.WLSExecuteRequest.run(WLSExecuteRequest.java:118)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)






Fix Errors


This was due to the fact that DB Listener was down. Once DB listener was brought up, this error disappeared.