上記で報告されたエラー メッセージを解決するにはどうすればよいですか? 追加の詳細を以下に示します。
例外スタック トレース
java.lang.NullPointerException
at org.eclipse.m2e.jdt.internal.MavenClasspathContainerInitializer.initialize(MavenClasspathContainerInitializer.java:48)
at org.eclipse.jdt.internal.core.JavaModelManager.initializeContainer(JavaModelManager.java:2843)
at org.eclipse.jdt.internal.core.JavaModelManager.getClasspathContainer(JavaModelManager.java:1878)
at org.eclipse.jdt.core.JavaCore.getClasspathContainer(JavaCore.java:3128)
at org.eclipse.jdt.internal.core.JavaProject.resolveClasspath(JavaProject.java:2691)
at org.eclipse.jdt.internal.core.JavaProject.resolveClasspath(JavaProject.java:2855)
at org.eclipse.jdt.internal.core.ClasspathChange.generateDelta(ClasspathChange.java:220)
at org.eclipse.jdt.internal.core.DeltaProcessor.resourceChanged(DeltaProcessor.java:2052)
at org.eclipse.jdt.internal.core.DeltaProcessingState.resourceChanged(DeltaProcessingState.java:470)
at org.eclipse.core.internal.events.NotificationManager$1.run(NotificationManager.java:291)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:285)
at org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java:149)
at org.eclipse.core.internal.resources.Workspace.broadcastPostChange(Workspace.java:395)
at org.eclipse.core.internal.resources.Workspace.endOperation(Workspace.java:1530)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2353)
at org.eclipse.wst.jsdt.internal.core.JavaModelManager.initializeAllContainers(JavaModelManager.java:2153)
at org.eclipse.wst.jsdt.internal.core.JavaModelManager.getJsGlobalScopeContainer(JavaModelManager.java:1530)
at org.eclipse.wst.jsdt.core.JavaScriptCore.getJsGlobalScopeContainer(JavaScriptCore.java:1319)
at org.eclipse.wst.jsdt.internal.core.JavaProject.resolveClasspath(JavaProject.java:2740)
at org.eclipse.wst.jsdt.internal.core.JavaProject.getResolvedClasspath(JavaProject.java:2019)
at org.eclipse.wst.jsdt.core.JavaScriptCore.initializeAfterLoad(JavaScriptCore.java:2655)
at org.eclipse.wst.jsdt.internal.ui.InitializeAfterLoadJob$RealJob.run(InitializeAfterLoadJob.java:32)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
セッションデータ
eclipse.buildId=I20120608-1400
java.version=1.7.0_08-ea
java.vendor=Oracle Corporation
BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=en_US
Framework arguments: -product org.eclipse.epp.package.jee.product -keyring /Users/ravisankars/.eclipse_keyring -showlocation
Command-line arguments: -os macosx -ws cocoa -arch x86_64 -product org.eclipse.epp.package.jee.product -keyring /Users/ravisankars/.eclipse_keyring -showlocation