[jbosstools-issues] [JBoss JIRA] (JBIDE-15178) Errors when closing and reopening a maven project

[Jiri Peterka (JIRA)]

Jiri Peterka created JBIDE-15178:
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             Summary: Errors when closing and reopening a maven project
                 Key: JBIDE-15178
                 URL: https://issues.jboss.org/browse/JBIDE-15178
             Project: Tools (JBoss Tools)
          Issue Type: Bug
          Components: common/jst/core, upstream
    Affects Versions: 4.1.0.CR1
            Reporter: Jiri Peterka
            Priority: Critical
             Fix For: 4.2.0.Alpha1


When closing created project there is this NPE (#1):
{code}java.lang.NullPointerException
	at org.eclipse.jst.common.project.facet.core.libprov.internal.LibraryProviderFrameworkImpl.getCurrentProvider(LibraryProviderFrameworkImpl.java:144)
	at org.eclipse.jst.common.project.facet.core.libprov.LibraryProviderFramework.getCurrentProvider(LibraryProviderFramework.java:81)
	at org.eclipse.jst.common.project.facet.core.libprov.user.UserLibraryProviderInstallOperationConfig.reset(UserLibraryProviderInstallOperationConfig.java:280)
	at org.eclipse.jst.common.project.facet.core.libprov.user.UserLibraryProviderInstallOperationConfig.init(UserLibraryProviderInstallOperationConfig.java:153)
	at org.eclipse.jst.j2ee.internal.common.classpath.WtpUserLibraryProviderInstallOperationConfig.init(WtpUserLibraryProviderInstallOperationConfig.java:64)
	at org.eclipse.jst.common.project.facet.core.libprov.LibraryProviderInstallOperationConfig.init(LibraryProviderInstallOperationConfig.java:46)
	at org.eclipse.jst.common.project.facet.core.libprov.internal.LibraryProvider.createInstallOperationConfig(LibraryProvider.java:396)
	at org.eclipse.jst.common.project.facet.core.libprov.LibraryInstallDelegate.refresh(LibraryInstallDelegate.java:409)
	at org.eclipse.jst.common.project.facet.core.libprov.LibraryInstallDelegate$2.handleEvent(LibraryInstallDelegate.java:132)
	at org.eclipse.wst.common.project.facet.core.events.internal.ProjectListenerRegistry.notifyListeners(ProjectListenerRegistry.java:76)
	at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.notifyListeners(FacetedProject.java:1326)
	at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.refresh(FacetedProject.java:1825)
	at org.eclipse.wst.common.project.facet.core.internal.FacetedProject.refresh(FacetedProject.java:1678)
	at org.eclipse.wst.common.project.facet.core.internal.FacetedProjectFrameworkImpl$ResourceChangeListener.resourceChanged(FacetedProjectFrameworkImpl.java:2364)
	at org.eclipse.core.internal.events.NotificationManager$1.run(NotificationManager.java:291)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:285)
	at org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java:149)
	at org.eclipse.core.internal.resources.Workspace.broadcastPostChange(Workspace.java:396)
	at org.eclipse.core.internal.resources.Workspace.endOperation(Workspace.java:1531)
	at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:45)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
{code}

And after reopening there is this one (#2)
{code}
org.eclipse.core.internal.resources.ResourceException: The resource tree is locked for modifications.
	at org.eclipse.core.internal.resources.WorkManager.checkIn(WorkManager.java:116)
	at org.eclipse.core.internal.resources.Workspace.prepareOperation(Workspace.java:2283)
	at org.eclipse.core.internal.resources.Folder.create(Folder.java:92)
	at org.eclipse.core.internal.resources.Folder.create(Folder.java:125)
	at org.jboss.tools.common.model.filesystems.impl.FileSystemImpl.getResource(FileSystemImpl.java:87)
	at org.jboss.tools.common.model.filesystems.impl.FileSystemsImpl.addChild_0(FileSystemsImpl.java:64)
	at org.jboss.tools.common.model.impl.XModelObjectImpl.addChild(XModelObjectImpl.java:273)
	at org.jboss.tools.jst.web.model.helpers.InnerModelHelper.createXModel(InnerModelHelper.java:72)
	at org.jboss.tools.jst.web.kb.internal.scanner.ClassPathMonitor.init(ClassPathMonitor.java:60)
	at org.jboss.tools.jst.web.kb.internal.KbProject.setProject(KbProject.java:202)
	at org.eclipse.core.internal.resources.NatureManager.createNature(NatureManager.java:233)
	at org.eclipse.core.internal.resources.Project.getNature(Project.java:448)
	at org.jboss.tools.jst.web.kb.KbProjectFactory.getKbProject(KbProjectFactory.java:67)
	at org.jboss.tools.jst.web.kb.WebKbPlugin$RCL.resourceChanged(WebKbPlugin.java:155)
	at org.eclipse.core.internal.events.NotificationManager$1.run(NotificationManager.java:291)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:285)
	at org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java:149)
	at org.eclipse.core.internal.resources.Workspace.broadcastPostChange(Workspace.java:396)
	at org.eclipse.core.internal.resources.Workspace.endOperation(Workspace.java:1531)
	at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:45)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
{code}

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