Question

我不确定是什么引发了这个问题。我把它作为一个bug提交给Eclipse，但他们关闭了它，说明这是一个JBoss扩展问题。但是，这个问题并没有发生在我的其他工作区（都使用JBoss工具）。

每次按 Ctrl + Shift + T 打开新类型时都会出现。它只报告＆＃34;缓存刷新＆＃34;错误。然后，当我输入一个搜索字符串并点击OK时，它会弹出＆＃34; Cache Refresh＆＃34;错误和＆＃34;项目过滤＆＃34;错误。这两个都报告了NPE。

我检查了日志，但没有在堆栈中看到任何特定于jboss的内容。

缓存刷新：

!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)

项目过滤：

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)

Answer 1

我不得不重新安装Helios（SR2）以免这些错误消失。

Answer 2

我遇到了同样的问题并做了同样的事情。为了避免eclipse存在一些内存问题，可以增加安装文件夹中eclipse.ini文件的内存使用量，但不要过度使用，这取决于你的机器ram。

Helios Annoyance：在“缓存刷新”期间发生内部错误 - NullPointerException

2 个答案: