public void addPersistentRef ( ) { if ( TraceComponent . isAnyTracingEnabled ( ) && tc . isEntryEnabled ( ) ) SibTr . entry ( this , tc , "addPersistentRef" ) ; // We have at least one durable reference so the message // must maintain its level of persistence maintainPersistence = 1 ; if ( TraceComponent . isAnyTracingEnabled ( ) && tc . isEntryEnabled ( ) ) SibTr . exit ( this , tc , "addPersistentRef" ) ; }
Note the existence of a persistent reference