I am trying to figure out how to debug the following exception that's thrown in one of my jsps. The line number from the exception trace is 259. If this is a line number from the underlying jsp then the line is: <%@(protected):

java.util.NoSuchElementException
at java.util.AbstractList$Itr.next(AbstractList.java:427)
at org.apache.jsp.commentList_jsp._jspService(org.apache.jsp.commentList_jsp:259)
at org.apache.jasper.runtime.HttpJspBase.service (HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service (HttpServlet.java:810)
at org.apache.jasper.servlet.JspServletWrapper.service (JspServletWrapper.java:322)
at org.apache.jasper.servlet.JspServlet.serviceJspFile (JspServlet.java:314)
at org.apache.jasper.servlet.JspServlet.service (JspServlet.java:264)
at javax.servlet.http.HttpServlet.service (HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter (ApplicationFilterChain.java:173)
at org.displaytag.filter.ResponseOverrideFilter.doFilter (ResponseOverrideFilter.java:125)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter (ApplicationFilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter (ReplyHeaderFilter.java:81)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter (ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke (StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke (StandardContextValve.java:178)
at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke (CustomPrincipalValve.java:39)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke (SecurityAssociationValve.java:159)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke (AuthenticatorBase.java:407)
at org.jboss.web.tomcat.security.JaccContextValve.invoke (JaccContextValve.java:59)
at org.apache.catalina.core.StandardHostValve.invoke (StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke (StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service (CoyoteAdapter.java:148)
at org.apache.jk.server.JkCoyoteHandler.invoke (JkCoyoteHandler.java:307)
at org.apache.jk.common.HandlerRequest.invoke (HandlerRequest.java:385)
at org.apache.jk.common.ChannelSocket.invoke (ChannelSocket.java:748)
at org.apache.jk.common.ChannelSocket.processConnection (ChannelSocket.java:678)
at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:871)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run (Thread.java:595)