查看.log文件，错误日志如下：
!MESSAGE Job found still running after platform shutdown. Jobs should be canceled by the plugin that scheduled them during shutdown:
解决方案：删除YOUR_PROJECT_DIR/.metadata/.plugins/org.eclipse.e4.workbench/workbench.xmi文件，重启eclipse
原文：http://www.cnblogs.com/bianmajiang/p/4318165.html