Eclipse啟動失敗，啟動一半後自動關閉

今天不知道為什麼，啟動Eclipse，啟動一半後自動關閉，啟動失敗。具體圖片如下：

1、啟動介面

但是到一半後，就自動消失。後天提示問題如下：

java.lang.NullPointerException
        at org.eclipse.core.internal.runtime.InternalPlatform.getLog(InternalPlatform.java:354)
        at org.eclipse.core.runtime.Plugin.getLog(Plugin.java:291)
        at org.eclipse.ui.internal.WorkbenchPlugin.log(WorkbenchPlugin.java:830)
        at org.eclipse.ui.statushandlers.StatusManager.logError(StatusManager.java:285)
        at org.eclipse.ui.statushandlers.StatusManager.handle(StatusManager.java:200)
        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)

...........................................................

Job found still running after platform shutdown.  Jobs should be canceled by the plugin that scheduled them during shutdown: org.eclipse.ui.internal.Workbench$55

怎麼解決這個問題。

看問題是在Loading Workbench處關閉。可知是此處的問題

首先我做的是更改Workspace檔案夾的名字，

，之後再啟動啟動成功，可是所有的工程全部消失，等於以前的配置都沒了。

2、之後我用了另一個方法，就是把元workspace的內容直接複製到新的workspace中，但是保留已存的檔案，之後再啟動提示如下內容