XAER_RMFAIL : Resource manager is unavailable

Error:
Caused by: javax.ejb.EJBException: Unexpected exception in com.retek.rib.app.getnext.impl.GetNextPublisherEjb.getNextAndPublishMessages:
com.retek.rib.binding.exception.PublishException: java.sql.SQLException: Unexpected exception while enlisting XAConnection java.sql.SQLException: XA error: XAResource.XAER_RMFAIL start() failed on resource 'rib-rms-managed-datasource_RIBDomain': XAER_RMFAIL : Resource manager is unavailable
oracle.jdbc.xa.OracleXAException
at oracle.jdbc.xa.OracleXAResource.checkError(OracleXAResource.java:1110)
at oracle.jdbc.xa.client.OracleXAResource.start(OracleXAResource.java:240)
at weblogic.jdbc.jta.DataSource.start(DataSource.java:790)
at weblogic.transaction.internal.XAServerResourceInfo.start(XAServerResourceInfo.java:1247)
at weblogic.transaction.internal.XAServerResourceInfo.xaStart(XAServerResourceInfo.java:1180)
at weblogic.transaction.internal.XAServerResourceInfo.enlist(XAServerResourceInfo.java:285)
at weblogic.transaction.internal.ServerTransactionImpl.enlistResource(ServerTransactionImpl.java:561)
at weblogic.transaction.internal.ServerTransactionImpl.enlistResource(ServerTransactionImpl.java:488)
at weblogic.jdbc.jta.DataSource.enlist(DataSource.java:1673)
at weblogic.jdbc.jta.DataSource.refreshXAConnAndEnlist(DataSource.java:1577)
at weblogic.jdbc.jta.DataSource.getConnectionInternal(DataSource.java:478)
at weblogic.jdbc.jta.DataSource.getConnection(DataSource.java:462)
at weblogic.jdbc.common.internal.RmiDataSource.getConnectionInternal(RmiDataSource.java:512)
at weblogic.jdbc.common.internal.RmiDataSource.getConnection(RmiDataSource.java:498)
at weblogic.jdbc.common.internal.RmiDataSource.getConnection(RmiDataSource.java:491)
at com.retek.rib.app.getnext.impl.GetNextPublisherEjb.getConnection(GetNextPublisherEjb.java:161)


Causes: 
The issue is due to datasources connection are crashed when tx timeout or deadlock is occurred.

Solution: 
After applying this patch the above issue is getting resolve.

Patch 16843551: MERGE REQUEST ON TOP OF  weblogic 10.3.6.0.0