Access restriction: The method typeNameToClass(String) from the type ObjectHandler is not accessible due to restriction on required library

异常：

Access restriction: The method typeNameToClass(String) from the type ObjectHandler is not accessible due to restriction on required library

解决方法： 
这是eclipse设置问题，eclipse默认把这些受访问限制的API设成了ERROR，只要把 
Windows-Preferences-Java-Complicer-Errors/Warnings 
里面的Deprecated and restricted API中的Forbidden references(access rules)设置为Warning即可。