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我不確定是什麼引發了這個問題。我將它作爲Eclipse的一個錯誤提交給它，但它們關閉了它，表明它是一個JBoss擴展問題。但是，這個問題在我的其他工作區中不會發生（都使用JBoss工具）。Helios Annoyance：內部錯誤發生在：「緩存刷新」 - 空指針異常
它發生每次我打按Ctrl +移+Ť到打開一個新的類型的時間。它只報告「緩存刷新」錯誤。然後，當我輸入搜索字符串並點擊確定時，它會彈出「緩存刷新」錯誤和「項目篩選」錯誤。這兩個報告NPE。
我檢查了日誌，但沒有看到堆棧中特定於jboss的任何東西。
緩存刷新：
!ENTRY org.eclipse.core.jobs 4 2 2011-04-19 11:55:05.983
!MESSAGE An internal error occurred during: "Cache refresh".
!STACK 0
java.lang.NullPointerException
at org.jboss.ide.eclipse.as.classpath.core.ejb3.EJB3ClasspathContainer.getClasspathEntries(EJB3ClasspathContainer.java:106)
at org.eclipse.jdt.internal.core.JavaProject.resolveClasspath(JavaProject.java:2656)
at org.eclipse.jdt.internal.core.JavaProject.resolveClasspath(JavaProject.java:2788)
at org.eclipse.jdt.internal.core.JavaProject.getResolvedClasspath(JavaProject.java:1920)
at org.eclipse.jdt.internal.core.search.JavaWorkspaceScope.enclosingProjectsAndJars(JavaWorkspaceScope.java:84)
at org.eclipse.jdt.internal.core.search.IndexSelector.initializeIndexLocations(IndexSelector.java:181)
at org.eclipse.jdt.internal.core.search.IndexSelector.getIndexLocations(IndexSelector.java:276)
at org.eclipse.jdt.internal.core.search.JavaSearchParticipant.selectIndexes(JavaSearchParticipant.java:107)
at org.eclipse.jdt.internal.core.search.PatternSearchJob.getIndexes(PatternSearchJob.java:79)
at org.eclipse.jdt.internal.core.search.PatternSearchJob.ensureReadyToRun(PatternSearchJob.java:50)
at org.eclipse.jdt.internal.core.search.processing.JobManager.performConcurrentJob(JobManager.java:174)
at org.eclipse.jdt.internal.core.search.BasicSearchEngine.searchAllTypeNames(BasicSearchEngine.java:1135)
at org.eclipse.jdt.core.search.SearchEngine.searchAllTypeNames(SearchEngine.java:744)
at org.eclipse.jdt.internal.ui.dialogs.FilteredTypesSelectionDialog$ConsistencyRunnable.refreshSearchIndices(FilteredTypesSelectionDialog.java:654)
at org.eclipse.jdt.internal.ui.dialogs.FilteredTypesSelectionDialog$ConsistencyRunnable.run(FilteredTypesSelectionDialog.java:637)
at org.eclipse.jdt.internal.ui.dialogs.FilteredTypesSelectionDialog.reloadCache(FilteredTypesSelectionDialog.java:680)
at org.eclipse.ui.dialogs.FilteredItemsSelectionDialog$RefreshCacheJob.run(FilteredItemsSelectionDialog.java:1508)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
項目篩選：
java.lang.NullPointerException
at org.jboss.ide.eclipse.as.classpath.core.ejb3.EJB3ClasspathContainer.getClasspathEntries(EJB3ClasspathContainer.java:106)
at org.eclipse.jdt.internal.core.JavaProject.resolveClasspath(JavaProject.java:2656)
at org.eclipse.jdt.internal.core.JavaProject.resolveClasspath(JavaProject.java:2788)
at org.eclipse.jdt.internal.core.JavaProject.getResolvedClasspath(JavaProject.java:1920)
at org.eclipse.jdt.internal.core.search.JavaWorkspaceScope.enclosingProjectsAndJars(JavaWorkspaceScope.java:84)
at org.eclipse.jdt.internal.core.search.IndexSelector.initializeIndexLocations(IndexSelector.java:181)
at org.eclipse.jdt.internal.core.search.IndexSelector.getIndexLocations(IndexSelector.java:276)
at org.eclipse.jdt.internal.core.search.JavaSearchParticipant.selectIndexes(JavaSearchParticipant.java:107)
at org.eclipse.jdt.internal.core.search.PatternSearchJob.getIndexes(PatternSearchJob.java:79)
at org.eclipse.jdt.internal.core.search.PatternSearchJob.ensureReadyToRun(PatternSearchJob.java:50)
at org.eclipse.jdt.internal.core.search.processing.JobManager.performConcurrentJob(JobManager.java:174)
at org.eclipse.jdt.internal.core.search.BasicSearchEngine.searchAllTypeNames(BasicSearchEngine.java:1135)
at org.eclipse.jdt.core.search.SearchEngine.searchAllTypeNames(SearchEngine.java:846)
at org.eclipse.jdt.internal.ui.dialogs.FilteredTypesSelectionDialog.fillContentProvider(FilteredTypesSelectionDialog.java:557)
at org.eclipse.ui.dialogs.FilteredItemsSelectionDialog$FilterJob.filterContent(FilteredItemsSelectionDialog.java:2188)
at org.eclipse.ui.dialogs.FilteredItemsSelectionDialog$FilterJob.internalRun(FilteredItemsSelectionDialog.java:2130)
at org.eclipse.ui.dialogs.FilteredItemsSelectionDialog$FilterJob.doRun(FilteredItemsSelectionDialog.java:2102)
at org.eclipse.ui.dialogs.FilteredItemsSelectionDialog$FilterJob.run(FilteredItemsSelectionDialog.java:2089)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)