protected void markInvalid ( ) { if ( TraceComponent . isAnyTracingEnabled ( ) && tc . isEntryEnabled ( ) ) SibTr . entry ( this , tc , "markInvalid" ) ; invalid = true ; if ( TraceComponent . isAnyTracingEnabled ( ) && tc . isEntryEnabled ( ) ) SibTr . exit ( this , tc , "markInvalid" ) ; }
Marks the enumeration as invalid . This is called once the asynchronous consumer callback returns to ensure that this locked message enumeration cannot be used from outside the callback .