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

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。