<A href="http://dontpanic82.blogspot.com/2011/12/classnotfoundexception-with-new-java.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+dontpanic82+%28DontPanic+-+a+blog+about+Lotus+Notes+%2F+Domino%29" target="_blank">Tommy Valand ran into a problem where the Java code in his XPage application</A> gave an error whenever he opened it in Designer. He explains how he fixed the problem.