方法一:
全局属性Project>preferences>java>Compiler>Errors/Warnings>把右侧的【Deprecated and restricted API>Forbidden reference的Error】置为【Warning】.
方法二(终极方法:)
项目属性preferences>java build path>把右侧【libraries中的JRE System Library】删除重新导入.
Access restriction: The type Resource is not accessible due to restriction on required library
原文：http://www.cnblogs.com/jing1617/p/6490201.html