[BUG] - The registration center response exception cause nullPointerException. #4910
Description
Steps to Reproduce
java.lang.NullPointerException: null
at org.apache.servicecomb.service.center.client.ServiceCenterRegistration$SendHeartBeatTask.execute(ServiceCenterRegistration.java:294) ~[service-center-client-2.8.26.jar:2.8.26]
at org.apache.servicecomb.http.client.task.AbstractTask.lambda$startTask$2(AbstractTask.java:94) ~[http-client-common-2.8.26.jar:2.8.26]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_372]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_372]
at java.lang.Thread.run(Thread.java:750) ~[na:1.8.0_372]
Expected Behavior
No response
Servicecomb Version
No response
Additional Context
No response