Description:
There is a known issue in TIBCO Administrator and TRA 5.1.2 that has been fixed in hotfix 1 for these two products. The users should install both Administrator and TRA hotfixes to fix the following issue. Below is a typical example of the error message.

com.tibco.pof.entity.EntityLockedException: Missing lock for entity nova146-7500
        at
com.tibco.pof.entitystore.tibrepo.TibRepoEntityTransaction.releaseLocks(TibRepoEntityTransaction.java:225)
        at
com.tibco.pof.entitystore.AbstractEntityTransaction.a(AbstractEntityTransaction.java:610)
        at
com.tibco.pof.entitystore.AbstractEntityTransaction.commit(AbstractEntityTransaction.java:596)
        at
com.tibco.pof.entity.impl.MutableDomainChildFactory.commit(MutableDomainChildFactory.java:405)
        at
com.tibco.pof.admindomain.impl.MutableAdminDomainImpl.commit(MutableAdminDomainImpl.java:186)
        at
com.tibco.emi.sniffer.EMISniffer.cleanup(EMISniffer.java:1168)
        at com.tibco.emi.sniffer.EMISniffer.execute(EMISniffer.java:474)
        at com.tibco.emi.sniffer.EMISniffer.main(EMISniffer.java:1590)