at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:174)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:875)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.p
rocessConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpo
int.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFol
lowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
ool.java:689)
at java.lang.Thread.run(Thread.java:619)
04/12/13 16:05:06 ERROR [http-8079-Processor21] lutece.error - Error 500 : null
java.lang.NullPointerException
at fr.paris.lutece.plugins.quiz.service.QuizService.processEndOfQuiz(Qui
zService.java:587)
at fr.paris.lutece.plugins.quiz.web.QuizApp.getQuizNextStep(QuizApp.java
:373)
at fr.paris.lutece.plugins.quiz.web.QuizApp.getPage(QuizApp.java:248)
at fr.paris.lutece.portal.service.content.XPageAppService.getPage(XPageA
ppService.java:241)
at fr.paris.lutece.portal.web.PortalJspBean.getContent(PortalJspBean.jav
a:198)
at fr.paris.lutece.portal.web.PortalJspBean.getContent(PortalJspBean.jav
a:139)
at org.apache.jsp.jsp.site.Portal_jsp._jspService(Portal_jsp.java:87)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper
.java:331)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:3
29)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:188)
at fr.paris.lutece.portal.web.xss.SafeRequestFilter.doFilter(SafeRequest
Filter.java:110)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF