runtime modeler error: Wrapper class org.example.mywsdl.Add is not found. Have you run APT to genera

突然间Myeclipse里面的webservice项目不能运行了，一运行就报此错误：

runtime modeler error: Wrapper class org.example.mywsdl.Add is not found. Have you run APT to generate them?

郁闷了很久，查了很多的文档，最终解决方式是升级jdk，最好版本在1.6.16以上！