code: long getMessageLockExpiry() {
  
          if (TraceComponent.isAnyTracingEnabled() && TRACE.isEntryEnabled()) {
              final String methodName = "getMessageLockExpiry";
              SibTr.entry(this, TRACE, methodName);
              SibTr.exit(this, TRACE, methodName, "0");
          }
          return 0;
  
      }
docs: Returns the expiry time for message locks.
  
  @return zero to indicate that message locks should not be used