Spring boot and Spring cloud common errors

1. Error Messages

2017-12-20 10:26:45.804 ERROR 4012---[ver-bootstrap-0] c.netflix.discovery.timedsupervisortask:task supervisor Rejec Ted the Task

Java.util.concurrent.RejectedExecutionException:Task Java.util.concurrent.futuretask@1d23ad5 rejected from java.util.concurrent.threadpoolexecutor@115da1f[terminated, pool size = 0, Active threads = 0, queued tasks = 0, completed tasks = 0]
At Java.util.concurrent.threadpoolexecutor$abortpolicy.rejectedexecution (Unknown Source) ~[na:1.8.0_11]
At Java.util.concurrent.ThreadPoolExecutor.reject (Unknown Source) [Na:1.8.0_11]
At Java.util.concurrent.ThreadPoolExecutor.execute (Unknown Source) [Na:1.8.0_11]
At Java.util.concurrent.AbstractExecutorService.submit (Unknown Source) ~[na:1.8.0_11]
At Com.netflix.discovery.TimedSupervisorTask.run (timedsupervisortask.java:62) ~[eureka-client-1.4.12.jar:1.4.12]
At Java.util.concurrent.executors$runnableadapter.call (Unknown Source) [Na:1.8.0_11]
At Java.util.concurrent.FutureTask.run (Unknown Source) [Na:1.8.0_11]
At java.util.concurrent.scheduledthreadpoolexecutor$scheduledfuturetask.access$201 (Unknown Source) [Na:1.8.0_11]
At Java.util.concurrent.scheduledthreadpoolexecutor$scheduledfuturetask.run (Unknown Source) [Na:1.8.0_11]
At Java.util.concurrent.ThreadPoolExecutor.runWorker (Unknown Source) [Na:1.8.0_11]
At Java.util.concurrent.threadpoolexecutor$worker.run (Unknown Source) [Na:1.8.0_11]
At Java.lang.Thread.run (Unknown Source) [Na:1.8.0_11]

Workaround:

eureka-client1.4 version of the reason, replaced by the D version can be resolved, the D version of the Eureka-client upgrade to more than 1.6