The following exception is thrown when the page loads:

[ERROR] sgf.gateway.web.filters.exception.UnhandledExceptionFilter: This exception that was not handled by the UnhandledExceptionFilter
org.apache.jasper.JasperException: An exception occurred processing JSP page /WEB-INF/views/jsp/cadis/ac/admin/listGroupUsers.jsp at line 16

13: <tiles:putAttribute type="string" name="pageTitle" value="Manage Users for Group ${command.groupName}" />
14:
15: <tiles:putAttribute name="body">
16: <ac:list-group-users command="${command}" />
17: </tiles:putAttribute>
18:
19: </tiles:insertDefinition>


Stacktrace:
at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:401)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1047)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:817)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at sgf.gateway.web.filters.metrics.ClickstreamFilter.doFilter(ClickstreamFilter.java:62)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at sgf.gateway.web.filters.metrics.UserAgentFilter.doFilter(UserAgentFilter.java:73)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:366)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:97)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:78)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:35)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:187)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:187)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378)
at org.springframework.security.web.authentication.preauth.AbstractPreAuthenticatedProcessingFilter.doFilter(AbstractPreAuthenticatedProcessingFilter.java:89)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:79)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378)
at org.springframework.security.web.access.channel.ChannelProcessingFilter.doFilter(ChannelProcessingFilter.java:109)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:167)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at sgf.gateway.web.filters.exception.UnhandledExceptionFilter.doFilter(UnhandledExceptionFilter.java:86)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:680)
Caused by: javax.servlet.ServletException: javax.servlet.jsp.JspException: javax.el.PropertyNotFoundException: Property 'gateway' not found on type sgf.gateway.model.security.User
at org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:858)
at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:791)
at org.apache.jsp.WEB_002dINF.views.jsp.cadis.ac.admin.listGroupUsers_jsp._jspService(listGroupUsers_jsp.java:117)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
... 78 more
Caused by: javax.el.PropertyNotFoundException: Property 'gateway' not found on type sgf.gateway.model.security.User
at javax.el.BeanELResolver$BeanProperties.get(BeanELResolver.java:193)
at javax.el.BeanELResolver$BeanProperties.access$400(BeanELResolver.java:170)
at javax.el.BeanELResolver.property(BeanELResolver.java:279)
at javax.el.BeanELResolver.getValue(BeanELResolver.java:60)
at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:54)
at org.apache.el.parser.AstValue.getValue(AstValue.java:118)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:935)
at org.apache.jsp.tag.web.ac.group_002dusers_002dtable_tag._jspx_meth_c_005fout_005f5(group_002dusers_002dtable_tag.java:518)
at org.apache.jsp.tag.web.ac.group_002dusers_002dtable_tag._jspx_meth_c_005fif_005f1(group_002dusers_002dtable_tag.java:395)
at org.apache.jsp.tag.web.ac.group_002dusers_002dtable_tag._jspx_meth_c_005fforEach_005f0(group_002dusers_002dtable_tag.java:336)
at org.apache.jsp.tag.web.ac.group_002dusers_002dtable_tag.doTag(group_002dusers_002dtable_tag.java:247)
at org.apache.jsp.tag.web.ac.list_002dgroup_002dusers_tag._jspx_meth_ac_005fgroup_002dusers_002dtable_005f0(list_002dgroup_002dusers_tag.java:495)
at org.apache.jsp.tag.web.ac.list_002dgroup_002dusers_tag.doTag(list_002dgroup_002dusers_tag.java:227)
at org.apache.jsp.WEB_002dINF.views.jsp.cadis.ac.admin.listGroupUsers_jsp._jspx_meth_ac_005flist_002dgroup_002dusers_005f0(listGroupUsers_jsp.java:309)
at org.apache.jsp.WEB_002dINF.views.jsp.cadis.ac.admin.listGroupUsers_jsp._jspx_meth_tiles_005fputAttribute_005f2(listGroupUsers_jsp.java:270)
at org.apache.jsp.WEB_002dINF.views.jsp.cadis.ac.admin.listGroupUsers_jsp._jspx_meth_tiles_005finsertDefinition_005f0(listGroupUsers_jsp.java:158)
at org.apache.jsp.WEB_002dINF.views.jsp.cadis.ac.admin.listGroupUsers_jsp._jspService(listGroupUsers_jsp.java:108)
... 81 more
[ERROR] sgf.gateway.web.filters.exception.UnhandledExceptionFilter: This exception occurred reporting an unhandled exception, please see the 'cause by' exception above
java.lang.NullPointerException
at sgf.gateway.service.security.impl.acegi.AcegiRuntimeUserServiceImpl.getUser(AcegiRuntimeUserServiceImpl.java:90)
at sgf.gateway.service.security.impl.acegi.AcegiRuntimeUserServiceImpl.getUser(AcegiRuntimeUserServiceImpl.java:69)
at sgf.gateway.web.filters.exception.UnhandledExceptionFilter.getUserDescription(UnhandledExceptionFilter.java:200)
at sgf.gateway.web.filters.exception.UnhandledExceptionFilter.setupExceptionDetails(UnhandledExceptionFilter.java:182)
at sgf.gateway.web.filters.exception.UnhandledExceptionFilter.reportException(UnhandledExceptionFilter.java:157)
at sgf.gateway.web.filters.exception.UnhandledExceptionFilter.doHandleException(UnhandledExceptionFilter.java:141)
at sgf.gateway.web.filters.exception.UnhandledExceptionFilter.handleException(UnhandledExceptionFilter.java:114)
at sgf.gateway.web.filters.exception.UnhandledExceptionFilter.doFilter(UnhandledExceptionFilter.java:92)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:680)