EBS 12.2 Unable to start up the managed server oacore_server1 - after clone

Unable to Start OACORE Services during clone on RUN Filesystem

Recently we did a clone and as part of execution of adcfgclone.pl in run Filesystem, I responded to adcfgclone.pl to start Application Filesystems. But I observed the start of Managed servers failed and below is the output from one of oacore services.

Successfully Connected to Node Manager.

The Node Manager is already up.
Starting server oacore_server1 ...
Error Starting server oacore_server1: weblogic.nodemanager.NMException: Exception while starting server 'oacore_server1'

ERROR: Unable to start up the managed server oacore_server1

05/20/15-00:20:43 :: admanagedsrvctl.sh: exiting with status 1

This information is not sufficient to identify the cause of the issue and I had go through the oacore log files under $EBS_DOMAIN_HOME/servers/oacore_server1/logs

9ee0eb174c5acfd:2fe0c70b:14d72092155:-8000-0000000000000eda> <1432203790547> <BEA-100028> <Could not deserialize session data.
oracle.apps.fnd.common.PoolException: Exception creating new Poolable object.
        at oracle.apps.fnd.common.Pool.createObject(Pool.java:1289)
..
 <<WLS Kernel>> <> <> <1432099154476> <BEA-149205> <Failed to initialize the application 'EBSDataSource' due to error weblogic.application.ModuleException: .
..
java.lang.NoClassDefFoundError: Could not initialize class oracle.apps.fnd.common.WebAppsContext
        at oracle.apps.fnd.security.AppsServletFilter.init(AppsServletFilter.java:148)
..
<Could not load user defined filter in web.xml: oracle.apps.jtf.cabo.interceptor.JTFWrapperFilter.
java.lang.NullPointerException
..

..
..

Caused By: weblogic.common.resourcepool.ResourceSystemException:
 Could not connect to 'oracle.jdbc.OracleDriver'.

 The returned message is: ORA-01017: invalid username/password; logon denied

 It is likely that the login or password is not valid.
 It is also possible that something else is invalid in the configuration or that the database is not available.




Then this gave clear information which says that the apps password provided during adcfgclone.pl is noot being accepted even though the password provided is correct.

Later it is observed that Apps Password is changed as part of execution of adcfgclone.pl on DBTier and theis new password change is somehow not reflected when Managed servers are created during execution of rapidclone on Apps Tier.

Now this is fixed manually by performing below steps.

As ADMIN Server is up and runnning,

Login to EBS Weblogic console -> Perform Lock & Edit -> Under Domain Structure -> Services -> Datasources -> Select "EBSDataSource"

Navigate to Configuration -> Connection pool  -> Update with new password in password fields.

Then Save changes.

Perform the above steps of other Datasource OAADatasource.

Now Activate the changes in Control Center.

This should resolve the issue. Bring up the managed servers from Console or using command line.