docs: public synchronized void stopInactivityTimer() {
          final boolean traceOn = TraceComponent.isAnyTracingEnabled();
  
          if (traceOn && tc.isEntryEnabled())
              Tr.entry(tc, "stopInactivityTimer");
  
          if (_inactivityTimerActive) {
              _inactivityTimerActive = false;
              EmbeddableTimeoutManager.setTimeout(this, EmbeddableTimeoutManager.INACTIVITY_TIMEOUT, 0);
          }
  
          // The inactivity timer's being stopped so the transaction is
          // back on-server. Push the thread that it's running on onto
          // the stack.
          _mostRecentThread.push(Thread.currentThread());
  
          if (traceOn && tc.isEntryEnabled())
              Tr.exit(tc, "stopInactivityTimer");
      }