An internal exception occured.

DIF cannot recover from it. The internal resources are unavailable to we cannot provide a processed error handling.

Bellow is a description of the originating Exception that broke the request execution.

pt.digitalis.dif.exception.controller.ControllerException: java.util.ConcurrentModificationException

pt.digitalis.dif.exception.controller.ControllerException: java.util.ConcurrentModificationException
	at pt.digitalis.dif.controller.AbstractDIFDispatcher.execute(AbstractDIFDispatcher.java:596)
	at pt.digitalis.dif.controller.AbstractDIFDispatcher.runDispatchingSteps(AbstractDIFDispatcher.java:1251)
	at pt.digitalis.dif.controller.AbstractDIFDispatcher.dispatch(AbstractDIFDispatcher.java:475)
	at pt.digitalis.dif.controller.AbstractChAL.serve(AbstractChAL.java:126)
	at pt.digitalis.dif.controller.http.DIF1IntegrationChALHTTPImpl.serve(DIF1IntegrationChALHTTPImpl.java:65)
	at pt.digitalis.dif.controller.http.DIF1IntegrationChALHTTPImpl.serve(DIF1IntegrationChALHTTPImpl.java:37)
	at pt.digitalis.dif.listeners.HttpListener.processRequest(HttpListener.java:76)
	at pt.digitalis.dif.listeners.AbstractRESTfullHttpListener.doGet(AbstractRESTfullHttpListener.java:64)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	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:654)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:557)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:481)
	at sun.reflect.GeneratedMethodAccessor2719.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at net.bull.javamelody.JspWrapper.invoke(JspWrapper.java:152)
	at net.bull.javamelody.JdbcWrapper$DelegatingInvocationHandler.invoke(JdbcWrapper.java:306)
	at com.sun.proxy.$Proxy366.include(Unknown Source)
	at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:968)
	at org.apache.jasper.runtime.PageContextImpl.doInclude(PageContextImpl.java:638)
	at org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:632)
	at pt.digitalis.dif.presentation.views.jsp.taglibs.TagLibUtils.includeStage(TagLibUtils.java:1050)
	at pt.digitalis.dif.presentation.views.jsp.objects.contributions.WebUIHTMLGeneratorImpl.getComponentStage(WebUIHTMLGeneratorImpl.java:1024)
	at pt.digitalis.dif.presentation.views.jsp.taglibs.AbstractDIFTag.addComponentStage(AbstractDIFTag.java:431)
	at pt.digitalis.dif.presentation.views.jsp.taglibs.objects.javascriptgenerators.ext.GridJavaScriptExtGenerator.getToolbarDeclaration(GridJavaScriptExtGenerator.java:3300)
	at pt.digitalis.dif.presentation.views.jsp.taglibs.objects.javascriptgenerators.ext.GridJavaScriptExtGenerator.getGrid(GridJavaScriptExtGenerator.java:2724)
	at pt.digitalis.dif.presentation.views.jsp.objects.contributions.WebUIJavascriptExtImpl.getGrid(WebUIJavascriptExtImpl.java:5053)
	at pt.digitalis.dif.presentation.views.jsp.objects.contributions.WebUIJavascriptExtImpl.getPanel(WebUIJavascriptExtImpl.java:6810)
	at pt.digitalis.dif.presentation.views.jsp.objects.contributions.WebUIJavascriptExtImpl.getAbstractPanelDefinition(WebUIJavascriptExtImpl.java:1296)
	at pt.digitalis.dif.presentation.views.jsp.objects.contributions.WebUIJavascriptExtImpl.getPanelContainer(WebUIJavascriptExtImpl.java:7096)
	at pt.digitalis.dif.presentation.views.jsp.taglibs.objects.htmlgenerators.AbstractGridGenerator.innerRenderNormalGrid(AbstractGridGenerator.java:1120)
	at pt.digitalis.dif.presentation.views.jsp.taglibs.objects.htmlgenerators.AbstractGridGenerator.renderGrid(AbstractGridGenerator.java:1637)
	at pt.digitalis.dif.presentation.views.jsp.taglibs.objects.htmlgenerators.GridGenerator.getGrid(GridGenerator.java:135)
	at pt.digitalis.dif.presentation.views.jsp.objects.contributions.WebUIHTMLGeneratorImpl.getGrid(WebUIHTMLGeneratorImpl.java:4303)
	at pt.digitalis.dif.presentation.views.jsp.taglibs.layout.panels.grid.Grid.customDoEndTag(Grid.java:845)
	at pt.digitalis.dif.presentation.views.jsp.taglibs.AbstractDIFTag.doEndTag(AbstractDIFTag.java:531)
	at org.apache.jsp.csenet.publico.CursosDiretorioPublico_jsp._jspService(CursosDiretorioPublico_jsp.java:332)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:373)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:336)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	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:654)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:557)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:481)
	at pt.digitalis.dif.presentation.renderers.impl.ViewRendererJSPImpl.renderView(ViewRendererJSPImpl.java:108)
	at pt.digitalis.dif.listeners.HttpListener.processRequest(HttpListener.java:150)
	at pt.digitalis.dif.listeners.AbstractRESTfullHttpListener.doGet(AbstractRESTfullHttpListener.java:64)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at pt.digitalis.dif.listeners.RESTRequestsFilter.doFilter(RESTRequestsFilter.java:100)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:239)
	at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:215)
	at pt.digitalis.dif.utils.monitoring.DIFMonitoringFilter.doFilter(DIFMonitoringFilter.java:55)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
	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:230)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
	at java.lang.Thread.run(Thread.java:750)
Caused by: java.util.ConcurrentModificationException
	at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:911)
	at java.util.ArrayList$Itr.next(ArrayList.java:861)
	at pt.digitalis.dif.utils.logging.DIFLoggerInterceptorImpl.log(DIFLoggerInterceptorImpl.java:419)
	at pt.digitalis.dif.utils.logging.DIFLoggerInterceptorImpl.debug(DIFLoggerInterceptorImpl.java:265)
	at pt.digitalis.dif.dem.objects.parameters.types.AbstractParameter.refreshParameterValue(AbstractParameter.java:1492)
	at pt.digitalis.dif.dem.objects.parameters.errors.ParameterErrors.refreshParameter(ParameterErrors.java:363)
	at pt.digitalis.dif.presentation.entities.system.grids.GridHelperCGStageInstance._rp(GridHelperCGStageInstance.java:333)
	at pt.digitalis.dif.presentation.entities.system.grids.GridHelperCGStageInstance.__Stage__InjectedAttributesInitMethod__(GridHelperCGStageInstance.java)
	at pt.digitalis.dif.presentation.entities.system.grids.GridHelperCGStageInstance._CG_init(GridHelperCGStageInstance.java:147)
	at pt.digitalis.dif.controller.AbstractDIFDispatcher.execute(AbstractDIFDispatcher.java:570)
	... 81 more