JavaRanch Web Component Mock Exam is down

[ming fan]

Error: 500
Location: /carl/scwcd/scwcd_mock.jsp
Internal Servlet Error:
java.lang.NoClassDefFoundError
at com.javaranch.jspbeans.scwcd.QuizBean.(QuizBean.java:277)
at java.lang.Class.newInstance0(Native Method)
at java.lang.Class.newInstance(Class.java:237)
at java.beans.Beans.instantiate(Beans.java:207)
at java.beans.Beans.instantiate(Beans.java:51)
at carl.scwcd.scwcd_mock_1._jspService(scwcd_mock_1.java:109)
at org.apache.jasper.runtime.HttpJspBase.service(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java)
at org.apache.tomcat.facade.ServletHandler.doService(Unknown Source)
at org.apache.tomcat.core.Handler.invoke(Unknown Source)
at org.apache.tomcat.core.Handler.service(Unknown Source)
at org.apache.tomcat.facade.ServletHandler.service(Unknown Source)
at org.apache.tomcat.core.ContextManager.internalService(Unknown Source)
at org.apache.tomcat.core.ContextManager.service(Unknown Source)
at org.apache.tomcat.modules.server.Http10Interceptor.processConnection(Unknown Source)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(Unknown Source)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(Unknown Source)
at java.lang.Thread.run(Thread.java:484)

What's wrong?

[Madhav Lakkapragada]

No, I am able to start it.
What browser are you using?
and What operation did you perform?
Pl. let us know when you get a chance.
Thanks.

- satya