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When deploying/updating a dynamic web project that has a library dependency supplied by maven locally and the source for the dependency is in a project also open in the work space a null pater exception occurs. If the source project is closed then the dyanmic web project can be deployed to the preview server successfully. java.lang.NullPointerException at org.eclipse.wst.common.componentcore.internal.util.VirtualReferenceUtilities.getDefaultProjectArchiveName(VirtualReferenceUtilities.java:81) at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getJavaClasspathReferences(J2EEModuleVirtualComponent.java:338) at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getNonManifestRefs(J2EEModuleVirtualComponent.java:242) at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getReferences(J2EEModuleVirtualComponent.java:166) at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getReferences(J2EEModuleVirtualComponent.java:214) at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getReferences(J2EEModuleVirtualComponent.java:207) at org.eclipse.jst.common.internal.modulecore.SingleRootUtil.hasConsumableReferences(SingleRootUtil.java:217) at org.eclipse.jst.common.internal.modulecore.SingleRootUtil.validateSingleRoot(SingleRootUtil.java:165) at org.eclipse.jst.common.internal.modulecore.SingleRootUtil.isSingleRoot(SingleRootUtil.java:93) at org.eclipse.jst.common.internal.modulecore.SingleRootExportParticipant.canOptimize(SingleRootExportParticipant.java:84) at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.canOptimize(FlatVirtualComponent.java:136) at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.cacheResources(FlatVirtualComponent.java:118) at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.fetchResources(FlatVirtualComponent.java:101) at org.eclipse.wst.web.internal.deployables.FlatComponentDeployable.members(FlatComponentDeployable.java:147) at org.eclipse.wst.server.core.internal.ModulePublishInfo.hasDelta(ModulePublishInfo.java:415) at org.eclipse.wst.server.core.internal.ServerPublishInfo.hasDelta(ServerPublishInfo.java:440) at org.eclipse.wst.server.core.internal.Server.hasPublishedResourceDelta(Server.java:1534) at org.eclipse.wst.server.core.internal.Server$ResourceChangeJob$1.visit(Server.java:214) at org.eclipse.wst.server.core.internal.Server.visitModule(Server.java:2910) at org.eclipse.wst.server.core.internal.Server.visit(Server.java:2894) at org.eclipse.wst.server.core.internal.Server$ResourceChangeJob.run(Server.java:225) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54) -- Configuration Details -- Product: Eclipse 1.4.1.20110909-0613 (org.eclipse.epp.package.jee.product) Installed Features: org.eclipse.jdt 3.7.1.r371_v20110810-0800-7z8gFcoFMLfTabvKsR5Qm9rBGEBK
Please report m2e-wtp integration issues to https://issues.sonatype.org/browse/MECLIPSEWTP
I'm not sure why this problem was filed under m2e to begin with; I don't see a single m2e class in the original stack trace. That being said, I'm getting a similar stack trace: java.lang.NullPointerException at org.eclipse.wst.common.componentcore.internal.util.VirtualReferenceUtilities.getDefaultProjectArchiveName(VirtualReferenceUtilities.java:81) at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getJavaClasspathReferences(J2EEModuleVirtualComponent.java:338) at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getNonManifestRefs(J2EEModuleVirtualComponent.java:242) at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getReferences(J2EEModuleVirtualComponent.java:166) at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getReferences(J2EEModuleVirtualComponent.java:214) at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getReferences(J2EEModuleVirtualComponent.java:207) at org.eclipse.jst.common.internal.modulecore.SingleRootUtil.hasConsumableReferences(SingleRootUtil.java:217) at org.eclipse.jst.common.internal.modulecore.SingleRootUtil.validateSingleRoot(SingleRootUtil.java:165) at org.eclipse.jst.common.internal.modulecore.SingleRootUtil.isSingleRoot(SingleRootUtil.java:93) at org.eclipse.jst.common.internal.modulecore.SingleRootExportParticipant.canOptimize(SingleRootExportParticipant.java:88) at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.canOptimize(FlatVirtualComponent.java:136) at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.cacheResources(FlatVirtualComponent.java:118) at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.fetchResources(FlatVirtualComponent.java:101) at org.eclipse.wst.web.internal.deployables.FlatComponentDeployable.members(FlatComponentDeployable.java:147) at org.eclipse.wst.server.core.internal.ModulePublishInfo.hasDelta(ModulePublishInfo.java:415) at org.eclipse.wst.server.core.internal.ServerPublishInfo.hasDelta(ServerPublishInfo.java:440) at org.eclipse.wst.server.core.internal.Server.hasPublishedResourceDelta(Server.java:1579) at org.eclipse.wst.server.core.internal.Server$ResourceChangeJob$1.visit(Server.java:217) at org.eclipse.wst.server.core.internal.Server.visitModule(Server.java:2970) at org.eclipse.wst.server.core.internal.Server.visit(Server.java:2954) at org.eclipse.wst.server.core.internal.Server$ResourceChangeJob.run(Server.java:228) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54) The annoying thing is that an error dialog pops up every time I make a change to my project. The project in question is a Spring project, which, as it happens, does use a Maven dependency container, but I'm not at all convinced that this is a Maven or m2e issue. I suggest that this bug be re-opened and moved to the appropriate project (JST/WST?).
Moved to https://github.com/eclipse-m2e/m2e-core/issues/
