Exception in thread "Thread-18" java.lang.IllegalArgumentException: count < 0

[developers-youcong]

• I have searched the issues of this repository and believe that this is not a duplicate.

1. Bug Description

详细错误信息:
Exception in thread "Thread-18" java.lang.IllegalArgumentException: count < 0
at java.util.concurrent.CountDownLatch.(CountDownLatch.java:199)
at com.codingapi.txlcn.tc.txmsg.TMSearcher.search(TMSearcher.java:80)
at com.codingapi.txlcn.tc.txmsg.AutoTMClusterEngine.prepareToResearchTMCluster(AutoTMClusterEngine.java:83)
at com.codingapi.txlcn.tc.txmsg.AutoTMClusterEngine.onInitialized(AutoTMClusterEngine.java:57)
at com.codingapi.txlcn.tc.txmsg.TCSideRpcInitCallBack.lambda$null$1(TCSideRpcInitCallBack.java:95)
at java.util.ArrayList.forEach(ArrayList.java:1257)
at com.codingapi.txlcn.tc.txmsg.TCSideRpcInitCallBack.lambda$connected$2(TCSideRpcInitCallBack.java:95)
at java.lang.Thread.run(Thread.java:748)

为什么启动集群配置，启动正常成功，但是会出现这样的异常信息？

2. Environment:

• JDK version:1.8
• OS:window10或centos7.8
• TX-LCN version:5.0.2
• Others:

3. Exception Stacktrace

Paste your Exception Stacktrace here!

4. Tour Idea