无法发布到服务器。 Tomcat v8.0 Server中的java.lang.NullPointerException

Question

开发项目时我得到了这个错误。我使用了Eclipse Mars和Tomcat v8.0 Server。实际上到昨晚它运行良好但是第二天早上它显示了这个错误块。没有在控制台中显示，错误只显示在弹出窗口。我没有得到正确的解决方案，所以请帮我解决这个错误

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

我也遇到了这个问题，事实证明，由于某种原因，Windows（或我）使Tomcat publish文件夹为只读。我只是删除了那个，问题就解决了。