好用的架包

eclipse的plug-ins源码下载jar,org.freejava.javasourceattacher_1.2.1.jar放到dropins重启，选中add to java search;org.eclipse.jface.text_3.9.0.201408051014.jar是排除代码补全是对空格的排除，放到plugins下，在删掉原来那个