@SuppressWarnings("SameParameterValue")
    private void sendTimeoutNow(final boolean unlockId, final boolean stopAfterFinish) {
        sendTimeoutNow(unlockId, stopAfterFinish, -1);
    }
Send log entries to follower, returns true when success, otherwise false and unlock the id.

@param nextSendingIndex next sending index
@return send result.
jraft-core/src/main/java/com/alipay/sofa/jraft/core/Replicator.java