FSEditLogAsync#enqueueEdit does not synchronized this before invoke wait method

        if (Thread.holdsLock(this)) {
          // if queue is full, synchronized caller must immediately relinquish
          // the monitor before re-offering to avoid deadlock with sync thread
          // which needs the monitor to write transactions.
          int permits = overflowMutex.drainPermits();
          try {
            do {
              this.wait(1000); // will be notified by next logSync.
            } while (!editPendingQ.offer(edit));
          } finally {
            overflowMutex.release(permits);
          }
        }