MyEclipse强制退出后闪退进不去workbench

MyEclipse发生内存溢出，强制结束任务，再次启动MyEclipse发现闪退,再点开重复闪退。查看workspace/.metadata/.log文件发现如下错误信息：

!ENTRY com.genuitec.eclipse.migration 4 0 2015-11-13 15:09:43.413
!MESSAGE Unable to execute early startup code for an extension
!STACK 0
java.lang.ExceptionInInitializerError
at com.genuitec.eclipse.migration.core.internal.MigrationStartup.earlyStartup(MigrationStartup.java:12)
at org.eclipse.ui.internal.EarlyStartupRunnable.runEarlyStartup(EarlyStartupRunnable.java:87)
at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:66)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.internal.Workbench$55.run(Workbench.java:2551)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
Caused by: java.lang.NullPointerException
at com.genuitec.eclipse.migration.core.project.internal.Enablement.createFilter(Enablement.java:117)
at com.genuitec.eclipse.migration.core.project.internal.Enablement.<init>(Enablement.java:70)
at com.genuitec.eclipse.migration.core.project.internal.ProjectMigrationFilterableObject.<init>(ProjectMigrationFilterableObject.java:26)
at com.genuitec.eclipse.migration.core.project.internal.ProjectMigrationOperationDef.<init>(ProjectMigrationOperationDef.java:29)
at com.genuitec.eclipse.migration.core.project.internal.ProjectMigrationManagerImpl.readProjectExtensionPoint(ProjectMigrationManagerImpl.java:160)
at com.genuitec.eclipse.migration.core.project.internal.ProjectMigrationManagerImpl.<clinit>(ProjectMigrationManagerImpl.java:101)
... 6 more

!ENTRY org.eclipse.ui 4 0 2015-11-13 15:09:43.414
!MESSAGE Error occurred during status handling
!STACK 0
java.lang.NullPointerException
at org.eclipse.ui.internal.statushandlers.StatusHandlerRegistry.<init>(StatusHandlerRegistry.java:61)
at org.eclipse.ui.internal.statushandlers.StatusHandlerRegistry.getDefault(StatusHandlerRegistry.java:91)
at org.eclipse.ui.statushandlers.StatusManager.getStatusHandler(StatusManager.java:135)
at org.eclipse.ui.statushandlers.StatusManager.handle(StatusManager.java:189)
at org.eclipse.ui.statushandlers.StatusManager.handle(StatusManager.java:231)
at org.eclipse.ui.statushandlers.StatusManager$StatusManagerLogListener.logging(StatusManager.java:305)
at org.eclipse.core.internal.runtime.RuntimeLog.logToListeners(RuntimeLog.java:160)
at org.eclipse.core.internal.runtime.PlatformLogWriter.logged(PlatformLogWriter.java:100)
at org.eclipse.equinox.log.internal.ExtendedLogReaderServiceFactory.safeLogged(ExtendedLogReaderServiceFactory.java:86)
at org.eclipse.equinox.log.internal.ExtendedLogReaderServiceFactory.logPrivileged(ExtendedLogReaderServiceFactory.java:205)
at org.eclipse.equinox.log.internal.ExtendedLogReaderServiceFactory.log(ExtendedLogReaderServiceFactory.java:178)
at org.eclipse.equinox.log.internal.ExtendedLogServiceFactory.log(ExtendedLogServiceFactory.java:65)
at org.eclipse.equinox.log.internal.ExtendedLogServiceImpl.log(ExtendedLogServiceImpl.java:87)
at org.eclipse.equinox.log.internal.LoggerImpl.log(LoggerImpl.java:54)
at org.eclipse.core.internal.runtime.Log.log(Log.java:62)
at org.eclipse.ui.internal.WorkbenchPlugin.log(WorkbenchPlugin.java:822)
at org.eclipse.ui.internal.EarlyStartupRunnable.handleException(EarlyStartupRunnable.java:81)
at org.eclipse.core.runtime.SafeRunner.handleException(SafeRunner.java:75)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:46)
at org.eclipse.ui.internal.Workbench$55.run(Workbench.java:2551)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
!SESSION 2015-11-13 15:17:27.315 -----------------------------------------------
解决方法是删除workspace/.metadata/.plugins/目录下的org.eclipse.equinox.p2.ui和org.eclipse.e4.workbench这两个文件夹，再启动MyEclipse恢复正常。