}
            lockCount--;
            if (lockCount == 0 && lockReleaseSignal != null) {
                releaseLockIfHeld();
            } // otherwise, keep lock open
        } finally {
            stateLock.unlock();
        }
    }

    private void releaseLockIfHeld() {
        if (fileLock == null) {
            return;
        }
        if (LOGGER.isDebugEnabled()) {