每当我开始日食时，我会一次又一次地在控制台中打印这条消息。
WARNING: Couldn't flush user prefs: java.util.prefs.BackingStoreException: Couldn't get file lock.
消息似乎很清楚，但我怎么知道它试图获取锁定的文件？
以下是.log文件的摘录，似乎相关：
!ENTRY org.eclipse.ui.navigator 2 0 2014-02-27 13:40:53.913
!MESSAGE Can't find Navigator Content Descriptor with id: org.eclipse.jst.servlet.ui.EnhancedJavaRendering
!ENTRY org.eclipse.mylyn.tasks.ui 4 0 2014-02-27 13:40:57.125
!MESSAGE Could not load repository template extension contributed by org.eclipse.mylyn.bugzilla.ide with connectorKind bugzilla
!ENTRY com.google.gdt.eclipse.login 4 0 2014-02-27 13:40:58.904
!MESSAGE Could not flush preferences while saving login credentials