java.lang.NoClassDefFoundError: Could not initialize class jihe.Test3解决方案

java.lang.NoClassDefFoundError: Could not initialize class jihe.Test3
public   class   index   extends   Action   {


public   ActionForward   execute(ActionMapping   mapping,   ActionForm   form,
HttpServletRequest   request,   HttpServletResponse   response)   throws   Exception   {

Test3   t=new   Test3();

List   m=   t.findAllUser();

request.setAttribute( "sutao ",   m);
 

//request.removeAttribute(mapping.getAttribute());

return   mapping.findForward( "ss ");
}
}
就是这个ACTION不知道有没有错?

------解决方案--------------------
没编译,没包进来