Sourceforge から Java Web アプリケーションをインポートし、プロジェクト名とパッケージに付けられたすべての赤十字を取り除くために 3 週間の作業を行いましたが、Eclipse および tomcat6 開発環境でアプリケーションを実行できませんでした。配置アセンブリを設定しようとしたときのプロジェクト プロパティで、ダイアログ ボックスに次のように表示されました。現在表示されているページに無効な値が含まれています。そして、エラー ログで、Deployment Assembly をクリックすると、次のエラー メッセージが表示されました。
エラー
Wed Jan 09 10:25:16 CST 2013
Problems occurred when invoking code from plug-in: "org.eclipse.jface".
java.lang.NullPointerException
at org.eclipse.wst.common.componentcore.internal.resources.VirtualFolder.getFirstTaggedResource(VirtualFolder.java:185)
at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getDefaultDeploymentDescriptorFolder(J2EEModuleVirtualComponent.java:542)
at org.eclipse.jst.j2ee.internal.ui.JavaEEDeploymentAssemblyAdvancedSectionBuilder.(JavaEEDeploymentAssemblyAdvancedSectionBuilder.java:86)
at org.eclipse.jst.j2ee.internal.ui.J2EEModuleDependenciesPropertyPage.getAdvancedSectionBuilder(J2EEModuleDependenciesPropertyPage.java:381)
at org.eclipse.jst.j2ee.internal.ui.J2EEModuleDependenciesPropertyPage.(J2EEModuleDependenciesPropertyPage.java:65)
at org.eclipse.jst.servlet.ui.internal.WebDependencyPropertyPage.(WebDependencyPropertyPage.java:34)
at org.eclipse.jst.servlet.ui.internal.WebModuleDependencyPageProvider.createPages(WebModuleDependencyPageProvider.java:54)
at org.eclipse.wst.common.componentcore.ui.propertypage.ModuleAssemblyRootPage.createContents(ModuleAssemblyRootPage.java:195)
at org.eclipse.jface.preference.PreferencePage.createControl(PreferencePage.java:232)
at org.eclipse.wst.common.componentcore.ui.propertypage.ModuleAssemblyRootPage.createControl(ModuleAssemblyRootPage.java:346)
at org.eclipse.jface.preference.PreferenceDialog.createPageControl(PreferenceDialog.java:1502)
at org.eclipse.jface.preference.PreferenceDialog$14.run(PreferenceDialog.java:1259)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1253)
at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:675)
at org.eclipse.jface.preference.PreferenceDialog$10.run(PreferenceDialog.java:709)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.jface.preference.PreferenceDialog$9.selectionChanged(PreferenceDialog.java:705)
at org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:888)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:886)
at org.eclipse.jface.viewers.StructuredViewer.handlePostSelect(StructuredViewer.java:1226)
at org.eclipse.jface.viewers.StructuredViewer$5.widgetSelected(StructuredViewer.java:1251)
at org.eclipse.jface.util.OpenStrategy.firePostSelectionEvent(OpenStrategy.java:262)
at org.eclipse.jface.util.OpenStrategy.access$5(OpenStrategy.java:256)
at org.eclipse.jface.util.OpenStrategy$3.run(OpenStrategy.java:433)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4144)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3761)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
at org.eclipse.jface.window.Window.open(Window.java:801)
at org.eclipse.ui.dialogs.PropertyDialogAction.run(PropertyDialogAction.java:158)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4169)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3758)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1022)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:916)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:585)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:540)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:353)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
at org.eclipse.equinox.launcher.Main.main(Main.java:1414)
何度もグーグル検索しましたが、解決策が見つかりません。展開アセンブリを機能させるために、だれか好意を与えることができますか? これが私のアプリが実行できない主な理由だと思います。前もって感謝します。