500 Servlet Exception javax.servlet.ServletException: javax.servlet.jsp.JspException: ServletException in '/common/layout3col.jspx': java.lang.reflect.InvocationTargetException at com.caucho.jsp.PageContextImpl.handlePageException(PageContextImpl.java:1120) at _jsp._pages._error._error__jsp._jspService(pages/error/error.jsp:9) at com.caucho.jsp.JavaPage.service(JavaPage.java:60) at com.caucho.jsp.Page.pageservice(Page.java:570) at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:179) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:485) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:350) at com.instructables.servlet.ErrorServlet.service(ErrorServlet.java:68) at javax.servlet.http.HttpServlet.service(HttpServlet.java:92) at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:106) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:277) at com.caucho.server.webapp.RequestDispatcherImpl.error(RequestDispatcherImpl.java:113) at com.caucho.server.webapp.ErrorPageManager.sendServletError(ErrorPageManager.java:362) at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:175) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:274) at com.caucho.server.port.TcpConnection.run(TcpConnection.java:514) at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:527) at com.caucho.util.ThreadPool.run(ThreadPool.java:449) at java.lang.Thread.run(Thread.java:595) Caused by: javax.servlet.jsp.JspException: ServletException in '/common/layout3col.jspx': java.lang.reflect.InvocationTargetException at org.apache.tiles.taglib.InsertTag$InsertHandler.doEndTag(InsertTag.java:923) at org.apache.tiles.taglib.InsertTag.doEndTag(InsertTag.java:457) at _jsp._pages._error._error__jsp._jspService(pages/error/error.jsp:9) at com.caucho.jsp.JavaPage.service(JavaPage.java:60) at com.caucho.jsp.Page.pageservice(Page.java:570) at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:179) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:485) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:350) at com.instructables.servlet.ErrorServlet.service(ErrorServlet.java:68) at javax.servlet.http.HttpServlet.service(HttpServlet.java:92) at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:106) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:277) at com.caucho.server.webapp.RequestDispatcherImpl.error(RequestDispatcherImpl.java:113) at com.caucho.server.webapp.ErrorPageManager.sendServletError(ErrorPageManager.java:362) at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:175) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:274) at com.caucho.server.port.TcpConnection.run(TcpConnection.java:514) at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:527) at com.caucho.util.ThreadPool.run(ThreadPool.java:449) at java.lang.Thread.run(Thread.java:595) Caused by: javax.servlet.ServletException: javax.servlet.jsp.el.ELException: java.lang.reflect.InvocationTargetException at com.caucho.jsp.PageContextImpl.handlePageException(PageContextImpl.java:1120) at _jsp._common._nav__jsp._jspService(_nav__jsp.java:263) at com.caucho.jsp.JavaPage.service(JavaPage.java:60) at com.caucho.jsp.Page.pageservice(Page.java:570) at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:179) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:485) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:350) at com.caucho.jsp.PageContextImpl.include(PageContextImpl.java:933) at _jsp._common._layout3col__jspx._jspService(file:/home/instruct/deploy/instructables/common/layout3col.jspx:192) at com.caucho.jsp.JavaPage.service(JavaPage.java:60) at com.caucho.jsp.Page.pageservice(Page.java:570) at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:179) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:485) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:350) at com.caucho.jsp.PageContextImpl.include(PageContextImpl.java:933) at com.caucho.jsp.PageContextImpl.include(PageContextImpl.java:870) at org.apache.tiles.TilesUtilImpl.doInclude(TilesUtilImpl.java:143) at org.apache.tiles.TilesUtil.doInclude(TilesUtil.java:149) at org.apache.tiles.taglib.InsertTag.doInclude(InsertTag.java:760) at org.apache.tiles.taglib.InsertTag$InsertHandler.doEndTag(InsertTag.java:892) at org.apache.tiles.taglib.InsertTag.doEndTag(InsertTag.java:457) at _jsp._pages._error._error__jsp._jspService(pages/error/error.jsp:9) at com.caucho.jsp.JavaPage.service(JavaPage.java:60) at com.caucho.jsp.Page.pageservice(Page.java:570) at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:179) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:485) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:350) at com.instructables.servlet.ErrorServlet.service(ErrorServlet.java:68) at javax.servlet.http.HttpServlet.service(HttpServlet.java:92) at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:106) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:277) at com.caucho.server.webapp.RequestDispatcherImpl.error(RequestDispatcherImpl.java:113) at com.caucho.server.webapp.ErrorPageManager.sendServletError(ErrorPageManager.java:362) at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:175) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:274) at com.caucho.server.port.TcpConnection.run(TcpConnection.java:514) at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:527) at com.caucho.util.ThreadPool.run(ThreadPool.java:449) at java.lang.Thread.run(Thread.java:595) Caused by: javax.servlet.jsp.el.ELException: java.lang.reflect.InvocationTargetException at com.caucho.el.StaticMethodExpr.evalMethod(StaticMethodExpr.java:142) at com.caucho.el.FunctionExpr.evalObject(FunctionExpr.java:71) at _jsp._common._nav__jsp._jspService(_nav__jsp.java:128) at com.caucho.jsp.JavaPage.service(JavaPage.java:60) at com.caucho.jsp.Page.pageservice(Page.java:570) at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:179) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:485) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:350) at com.caucho.jsp.PageContextImpl.include(PageContextImpl.java:933) at _jsp._common._layout3col__jspx._jspService(file:/home/instruct/deploy/instructables/common/layout3col.jspx:192) at com.caucho.jsp.JavaPage.service(JavaPage.java:60) at com.caucho.jsp.Page.pageservice(Page.java:570) at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:179) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:485) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:350) at com.caucho.jsp.PageContextImpl.include(PageContextImpl.java:933) at com.caucho.jsp.PageContextImpl.include(PageContextImpl.java:870) at org.apache.tiles.TilesUtilImpl.doInclude(TilesUtilImpl.java:143) at org.apache.tiles.TilesUtil.doInclude(TilesUtil.java:149) at org.apache.tiles.taglib.InsertTag.doInclude(InsertTag.java:760) at org.apache.tiles.taglib.InsertTag$InsertHandler.doEndTag(InsertTag.java:892) at org.apache.tiles.taglib.InsertTag.doEndTag(InsertTag.java:457) at _jsp._pages._error._error__jsp._jspService(pages/error/error.jsp:9) at com.caucho.jsp.JavaPage.service(JavaPage.java:60) at com.caucho.jsp.Page.pageservice(Page.java:570) at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:179) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:485) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:350) at com.instructables.servlet.ErrorServlet.service(ErrorServlet.java:68) at javax.servlet.http.HttpServlet.service(HttpServlet.java:92) at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:106) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:277) at com.caucho.server.webapp.RequestDispatcherImpl.error(RequestDispatcherImpl.java:113) at com.caucho.server.webapp.ErrorPageManager.sendServletError(ErrorPageManager.java:362) at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:175) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:274) at com.caucho.server.port.TcpConnection.run(TcpConnection.java:514) at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:527) at com.caucho.util.ThreadPool.run(ThreadPool.java:449) at java.lang.Thread.run(Thread.java:595) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.GeneratedMethodAccessor643.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at com.caucho.el.StaticMethodExpr.evalMethod(StaticMethodExpr.java:133) at com.caucho.el.FunctionExpr.evalObject(FunctionExpr.java:71) at _jsp._common._nav__jsp._jspService(_nav__jsp.java:128) at com.caucho.jsp.JavaPage.service(JavaPage.java:60) at com.caucho.jsp.Page.pageservice(Page.java:570) at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:179) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:485) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:350) at com.caucho.jsp.PageContextImpl.include(PageContextImpl.java:933) at _jsp._common._layout3col__jspx._jspService(file:/home/instruct/deploy/instructables/common/layout3col.jspx:192) at com.caucho.jsp.JavaPage.service(JavaPage.java:60) at com.caucho.jsp.Page.pageservice(Page.java:570) at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:179) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:485) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:350) at com.caucho.jsp.PageContextImpl.include(PageContextImpl.java:933) at com.caucho.jsp.PageContextImpl.include(PageContextImpl.java:870) at org.apache.tiles.TilesUtilImpl.doInclude(TilesUtilImpl.java:143) at org.apache.tiles.TilesUtil.doInclude(TilesUtil.java:149) at org.apache.tiles.taglib.InsertTag.doInclude(InsertTag.java:760) at org.apache.tiles.taglib.InsertTag$InsertHandler.doEndTag(InsertTag.java:892) at org.apache.tiles.taglib.InsertTag.doEndTag(InsertTag.java:457) at _jsp._pages._error._error__jsp._jspService(pages/error/error.jsp:9) at com.caucho.jsp.JavaPage.service(JavaPage.java:60) at com.caucho.jsp.Page.pageservice(Page.java:570) at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:179) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:485) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:350) at com.instructables.servlet.ErrorServlet.service(ErrorServlet.java:68) at javax.servlet.http.HttpServlet.service(HttpServlet.java:92) at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:106) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:277) at com.caucho.server.webapp.RequestDispatcherImpl.error(RequestDispatcherImpl.java:113) at com.caucho.server.webapp.ErrorPageManager.sendServletError(ErrorPageManager.java:362) at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:175) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:274) at com.caucho.server.port.TcpConnection.run(TcpConnection.java:514) at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:527) at com.caucho.util.ThreadPool.run(ThreadPool.java:449) at java.lang.Thread.run(Thread.java:595) Caused by: java.lang.NullPointerException at com.instructables.taglib.Functions$1.compare(Functions.java:1187) at com.instructables.taglib.Functions$1.compare(Functions.java:1186) at java.util.Arrays.mergeSort(Arrays.java:1284) at java.util.Arrays.mergeSort(Arrays.java:1296) at java.util.Arrays.mergeSort(Arrays.java:1296) at java.util.Arrays.sort(Arrays.java:1223) at java.util.Collections.sort(Collections.java:159) at com.instructables.taglib.Functions.alphabetize(Functions.java:1185) at com.instructables.manager.HibernateCategoryManager.getChannelsLimitedByNamesCharacterCount(HibernateCategoryManager.java:139) at sun.reflect.GeneratedMethodAccessor644.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at com.instructables.transaction.TransactionHandler.invoke(TransactionHandler.java:69) at $Proxy33.getChannelsLimitedByNamesCharacterCount(Unknown Source) at com.instructables.taglib.Functions.getChannelsLimitedByNamesCharacterCount(Functions.java:1181) Resin Professional 3.0.28 (built Mon, 18 May 2009 02:21:41 PDT)