Eclipse 编译错误 Access restriction:The type *** is not accessible due to restriction on... 解决方案

Eclipse 编译错误 Access restriction:The type *** is not accessible due to restriction on... 解决方案
Eclipse 编译时报错：
Access restriction:The type JPEGCodec is not accessible due to restriction on required library C:/Program Files/Java/jre6/lib/rt.jar
解决方法：
Project -> Properties -> libraries，
先 remove 掉 JRE System Library，然后再 Add Library 重新加入。
原文链接：http://rxxluowei.iteye.com/blog/671893。