Parts of the JavaServer Page (JSP) 1.2 specification change the way the EmailBean class works with Email.jsp.
The specifications state that the JSP container creates a JSP page implementation class for each JSP page. The name of the JSP page implementation class is implementation-dependent. The JSP page implementation object belongs to an implementation-dependent named package which can vary between one JSP and another; therefore minimal assumptions should be made. The unnamed package should not be used without explicit import of the class.
Following these specifications, you should place EmailBean.class in a package referred to it by the fully qualified packageName in Email.jsp. Otherwise, Email.jsp is unable to find EmailBean.class.