http://pragmatic.springnote.com/pages/524847
http://snowflower.tistory.com/178
http://www.ibm.com/developerworks/kr/library/os-eclipse-plugindev1/index.html
http://www.ibm.com/developerworks/kr/library/os-ecplug/
http://www.eclipsepluginsite.com/eclipse-plugin-development-3.html