docs: private void incrementThreadLockCount()
    {
      if (tc.isEntryEnabled())
        SibTr.entry(tc, "incrementThreadLockCount", this);
      //get the current thread
      Thread currentThread = Thread.currentThread();
      //get it's current read lock count
      LockCount count = (LockCount) readerThreads.get(currentThread);
      //if it doesn't exist, create it
      if(count == null)
      {
        count = new LockCount();
        readerThreads.put(currentThread, count);
      }
      //increment the count
      if(count.count == 0) readerThreadCount++;
      count.count++;
      readLockCount++;
      
      if (tc.isEntryEnabled())
        SibTr.exit(tc, "incrementThreadLockCount");
    }