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java.lang.NoClassDefFoundError cannot be cast to java.lang.Exception
java.lang.ClassCastException: java.lang.NoClassDefFoundError cannot be cast to java.lang.Exception	at edu.harvard.hmdc.vdcnet.web.servlet.VDCFacesServlet.service(VDCFacesServlet.java:89)	at org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:411)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:317)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198)	at edu.harvard.hmdc.vdcnet.web.servlet.TermsOfUseFilter.doFilter(TermsOfUseFilter.java:174)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198)	at edu.harvard.hmdc.vdcnet.web.servlet.LoginFilter.doFilter(LoginFilter.java:178)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198)	at com.sun.rave.web.ui.util.UploadFilter.doFilter(UploadFilter.java:225)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:288)	at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:271)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:202)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)	at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:94)