Maven出错

 ERROR -      #org.jetbrains.idea.maven - OS: Windows 10 
2019-11-12 22:22:03,225 [  45374]  ERROR -      #org.jetbrains.idea.maven - Last Action:  
2019-11-12 22:22:03,877 [  46026]   WARN -      #org.jetbrains.idea.maven - Cannot reconnect. 
java.lang.RuntimeException: Cannot reconnect.
	at org.jetbrains.idea.maven.server.RemoteObjectWrapper.perform(RemoteObjectWrapper.java:82)
	at org.jetbrains.idea.maven.server.MavenIndexerWrapper.createIndex(MavenIndexerWrapper.java:60)
	at org.jetbrains.idea.maven.indices.MavenIndex.createContext(MavenIndex.java:388)
	at org.jetbrains.idea.maven.indices.MavenIndex.access$300(MavenIndex.java:55)
	at org.jetbrains.idea.maven.indices.MavenIndex$IndexData.<init>(MavenIndex.java:675)
	at org.jetbrains.idea.maven.indices.MavenIndex.doOpen(MavenIndex.java:228)
	at org.jetbrains.idea.maven.indices.MavenIndex.open(MavenIndex.java:194)
	at org.jetbrains.idea.maven.indices.MavenIndex.<init>(MavenIndex.java:160)
	at org.jetbrains.idea.maven.indices.MavenIndices.load(MavenIndices.java:58)
	at org.jetbrains.idea.maven.indices.MavenIndices.<init>(MavenIndices.java:46)
	at org.jetbrains.idea.maven.indices.MavenIndicesManager.ensureInitialized(MavenIndicesManager.java:113)
	at org.jetbrains.idea.maven.indices.MavenIndicesManager.getIndicesObject(MavenIndicesManager.java:96)
	at org.jetbrains.idea.maven.indices.MavenIndicesManager.ensureIndicesExist(MavenIndicesManager.java:173)
	at org.jetbrains.idea.maven.indices.MavenProjectIndicesManager$3.run(MavenProjectIndicesManager.java:109)
	at com.intellij.util.ui.update.MergingUpdateQueue.execute(MergingUpdateQueue.java:337)
	at com.intellij.util.ui.update.MergingUpdateQueue.execute(MergingUpdateQueue.java:327)
	at com.intellij.util.ui.update.MergingUpdateQueue.lambda$flush$1(MergingUpdateQueue.java:277)
	at com.intellij.util.ui.update.MergingUpdateQueue.flush(MergingUpdateQueue.java:291)
	at com.intellij.util.ui.update.MergingUpdateQueue.run(MergingUpdateQueue.java:246)
	at com.intellij.util.concurrency.QueueProcessor.runSafely(QueueProcessor.java:232)
	at com.intellij.util.Alarm$Request.runSafely(Alarm.java:405)
	at com.intellij.util.Alarm$Request.access$700(Alarm.java:330)
	at com.intellij.util.Alarm$Request$1.run(Alarm.java:371)
	at com.intellij.util.Alarm$Request.run(Alarm.java:382)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at com.intellij.util.concurrency.SchedulingWrapper$MyScheduledFutureTask.run(SchedulingWrapper.java:228)
	at com.intellij.util.concurrency.BoundedTaskExecutor.doRun(BoundedTaskExecutor.java:226)
	at com.intellij.util.concurrency.BoundedTaskExecutor.access$100(BoundedTaskExecutor.java:26)
	at com.intellij.util.concurrency.BoundedTaskExecutor$2$1.run(BoundedTaskExecutor.java:199)
	at com.intellij.util.ConcurrencyUtil.runUnderThreadName(ConcurrencyUtil.java:229)
	at com.intellij.util.concurrency.BoundedTaskExecutor$2.run(BoundedTaskExecutor.java:193)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.rmi.RemoteException: Cannot start maven service; nested exception is: 
	com.intellij.execution.ExecutionException: 
	at org.jetbrains.idea.maven.server.MavenServerManager.create(MavenServerManager.java:161)
	at org.jetbrains.idea.maven.server.MavenServerManager.create(MavenServerManager.java:66)
	at org.jetbrains.idea.maven.server.RemoteObjectWrapper.getOrCreateWrappee(RemoteObjectWrapper.java:41)
	at org.jetbrains.idea.maven.server.MavenServerManager$4.create(MavenServerManager.java:508)
	at org.jetbrains.idea.maven.server.MavenServerManager$4.create(MavenServerManager.java:504)
	at org.jetbrains.idea.maven.server.RemoteObjectWrapper.getOrCreateWrappee(RemoteObjectWrapper.java:41)
	at org.jetbrains.idea.maven.server.MavenIndexerWrapper.getRemoteId(MavenIndexerWrapper.java:142)
	at org.jetbrains.idea.maven.server.MavenIndexerWrapper.lambda$createIndex$0(MavenIndexerWrapper.java:60)
	at org.jetbrains.idea.maven.server.RemoteObjectWrapper.perform(RemoteObjectWrapper.java:76)
	... 34 more
Caused by: com.intellij.execution.ExecutionException: 
	at com.intellij.execution.rmi.RemoteProcessSupport.acquire(RemoteProcessSupport.java:159)
	at org.jetbrains.idea.maven.server.MavenServerManager.create(MavenServerManager.java:158)
	... 42 more
2019-11-12 22:22:04,211 [  46360]   INFO - .diagno