無法發布到服務器。 Tomcat v8.0 服務器中的java.lang.NullPointerException

Question

在開發項目時，我遇到了這個錯誤。我使用了 Eclipse Mars 和 Tomcat v8.0 Server。實際上直到昨晚它運行良好，但第二天早上它顯示了這個錯誤塊。控制台中沒有任何顯示，錯誤只是顯示在彈出窗口中.我沒有得到正確的解決方案，所以請幫我解決這個錯誤

java.lang.NullPointerException
at org.eclipse.jst.common.internal.modulecore.IgnoreJavaInSourceFolderParticipant.shouldAddExportableFile(IgnoreJavaInSourceFolderParticipant.java:64)
at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.shouldAddComponentFile(FlatVirtualComponent.java:288)
at org.eclipse.wst.common.componentcore.internal.flat.VirtualComponentFlattenUtility.addFile(VirtualComponentFlattenUtility.java:122)
at org.eclipse.wst.common.componentcore.internal.flat.VirtualComponentFlattenUtility.addMembersInternal(VirtualComponentFlattenUtility.java:99)
at org.eclipse.wst.common.componentcore.internal.flat.VirtualComponentFlattenUtility.addMembersInternal(VirtualComponentFlattenUtility.java:96)
at org.eclipse.wst.common.componentcore.internal.flat.VirtualComponentFlattenUtility.addMembers(VirtualComponentFlattenUtility.java:51)
at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.treeWalk(FlatVirtualComponent.java:230)
at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.cacheResources(FlatVirtualComponent.java:188)
at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.fetchResources(FlatVirtualComponent.java:118)
at org.eclipse.wst.web.internal.deployables.FlatComponentDeployable.members(FlatComponentDeployable.java:227)
at org.eclipse.jst.j2ee.internal.deployables.J2EEFlexProjDeployable.members(J2EEFlexProjDeployable.java:267)
at org.eclipse.wst.server.core.internal.ModulePublishInfo.fillCache(ModulePublishInfo.java:314)
at org.eclipse.wst.server.core.internal.ModulePublishInfo.getDelta(ModulePublishInfo.java:396)
at org.eclipse.wst.server.core.internal.ServerPublishInfo.getDelta(ServerPublishInfo.java:366)
at org.eclipse.wst.server.core.internal.Server.getPublishedResourceDelta(Server.java:1578)
at org.eclipse.wst.server.core.model.ServerBehaviourDelegate.getPublishedResourceDelta(ServerBehaviourDelegate.java:698)
at org.eclipse.jst.server.tomcat.core.internal.TomcatServerBehaviour.getPublishedResourceDelta(TomcatServerBehaviour.java:958)
at org.eclipse.wst.server.core.model.ServerBehaviourDelegate.computeDelta(ServerBehaviourDelegate.java:874)
at org.eclipse.wst.server.core.model.ServerBehaviourDelegate.publish(ServerBehaviourDelegate.java:909)
at org.eclipse.wst.server.core.model.ServerBehaviourDelegate.publish(ServerBehaviourDelegate.java:774)
at org.eclipse.wst.server.core.internal.Server.publishImpl(Server.java:3172)
at org.eclipse.wst.server.core.internal.Server$PublishJob.run(Server.java:345)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

Answer 1

我也遇到了這個問題，結果是 Windows（或我）出於某種原因將 Tomcat 發布文件夾設為只讀。 我剛剛刪除了它，問題就解決了。