1 Reply Latest reply on Nov 1, 2006 3:48 PM by Ciro Cavani

    Tomahawk dataTable & NPE Problem

    Ciro Cavani Novice

      I use this:

      <t:dataTable id="operationsTable"
       rendered="#{ operations.rowCount > 0 }"
       value="#{ operations }"
       var="operation"
       rowIndexVar="i"
       sortColumn="#{ operationView.column }"
       sortAscending="#{ operationView.ascending }"
       headerClass="dataHeader"
       rowClasses="dataLine1, dataLine2"
       styleClass="dataTable">
      
       <h:column>
       <f:facet name="header">
       <h:commandLink action="#{ operationFiling.create }">
      <h:graphicImage url="/img/new.png"style="margin-left: 2px; margin-right: 10px;"/>
       </h:commandLink>
       </f:facet>
       <h:outputText value="#{ i+1 }"/>
       </h:column>
      
       <h:column>
       <f:facet name="header">
       <t:commandSortHeader columnName="name" arrow="true">
      <h:outputText value="Nome"/>
       </t:commandSortHeader>
       </f:facet>
       <s:link value="#{ operation[1] }" action="#{ operationFiling.open(operation[0]) }" styleClass="blue"/>
       </h:column>
      </t:dataTable>
      


      Action:

      @Stateful
      @Name("operationView")
      @Scope(ScopeType.SESSION)
      public class OperationViewAction implements OperationView
      {
      
       @In(create = true)
       private QueryService queryService;
      
       @DataModel
       private List<Object[]> operations;
      
       private String column;
      
       private boolean ascending;
      
       public String getColumn()
       {
       return column;
       }
      
       public void setColumn(String column)
       {
       if (!column.equals(this.column)) sortOperations();
       this.column = column;
       }
      
       public boolean isAscending()
       {
       return ascending;
       }
      
       public void setAscending(boolean ascending)
       {
       if (ascending != this.ascending) sortOperations();
       this.ascending = ascending;
       }
      
      
       public String clean()
       {
       operations = null;
       column = "name";
       ascending = false;
      
       return "operation";
       }
      
      
       @Observer("updateOperationList")
       public void loadOperations()
       {
       // fill operations list
       // ...
      
       sortFidcOperations();
       }
      
       private void sortOperations()
       {
       if (operations == null)
       return;
      
       Comparator<Object[]> comp = new Comparator<Object[]>()
       {
      
       private RuleBasedCollator collator = (RuleBasedCollator) Collator.getInstance(new Locale("pt_BR"));
      
       public int compare(Object[] x, Object[] y)
       {
       if (ascending)
       {
       Object[] t = y;
       y = x;
       x = t;
       }
       if (column.equals("name"))
       {
       String x1 = (String) x[1];
       String y1 = (String) y[1];
      
       if (x1 == null && y1 == null) return 0;
      
       if (x1 == null) return 1;
      
       if (y1 == null) return -1;
      
       return collator.compare(x1, y1);
       }
       }
      
       };
      
       Collections.sort(operations, comp);
       }
      
      
       @Destroy @Remove
       public void destroy()
       {
       clean();
       }
      
      }
      


      And I had this exception:

      16:12:59,165 ERROR [STDERR] 01/11/2006 16:12:59 com.sun.facelets.FaceletViewHandler handleRenderException
      SEVERE: Error Rendering View[/Data/Operation.xhtml]
      java.lang.NullPointerException
       at org.jboss.seam.ui.UISelection.getValue(UISelection.java:27)
       at org.jboss.seam.ui.HtmlLink.getParameterString(HtmlLink.java:250)
       at org.jboss.seam.ui.HtmlLink.encodeBegin(HtmlLink.java:178)
       at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:433)
       at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChildren(RendererUtils.java:419)
       at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:440)
       at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.renderColumnBody(HtmlTableRendererBase.java:313)
       at org.apache.myfaces.renderkit.html.ext.HtmlTableRenderer.renderColumnBody(HtmlTableRenderer.java:593)
       at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeColumnChild(HtmlTableRendererBase.java:282)
       at org.apache.myfaces.renderkit.html.ext.HtmlTableRenderer.encodeColumnChild(HtmlTableRenderer.java:496)
       at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeInnerHtml(HtmlTableRendererBase.java:258)
       at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeChildren(HtmlTableRendererBase.java:123)
       at org.apache.myfaces.renderkit.html.ext.HtmlTableRenderer.encodeChildren(HtmlTableRenderer.java:171)
       at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:524)
       at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChild(RendererUtils.java:436)
       at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChildren(RendererUtils.java:419)
       at org.apache.myfaces.shared_impl.renderkit.html.HtmlGroupRendererBase.encodeEnd(HtmlGroupRendererBase.java:75)
       at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:536)
       at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:242)
       at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:239)
       at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:239)
       at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:580)
       at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384)
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32)
       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:96)
       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.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
       at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
       at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
       at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
       at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
       at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
       at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
       at java.lang.Thread.run(Thread.java:595)
      16:12:59,189 ERROR [SeamExceptionFilter] could not destroy contexts
      java.lang.IllegalStateException: No session context active
       at org.jboss.seam.core.ConversationEntries.instance(ConversationEntries.java:85)
       at org.jboss.seam.core.Manager.getCurrentConversationEntry(Manager.java:681)
       at org.jboss.seam.core.Manager.unlockConversation(Manager.java:329)
       at org.jboss.seam.contexts.Lifecycle.flushAndDestroyContexts(Lifecycle.java:367)
       at org.jboss.seam.contexts.Lifecycle.endRequest(Lifecycle.java:281)
       at org.jboss.seam.servlet.SeamExceptionFilter.endWebRequestAfterException(SeamExceptionFilter.java:81)
       at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:56)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32)
       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:96)
       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.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
       at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
       at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
       at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
       at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
       at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
       at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
       at java.lang.Thread.run(Thread.java:595)
      16:12:59,190 ERROR [SeamExceptionFilter] uncaught exception handled by Seam
      javax.servlet.ServletException
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:156)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32)
       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:96)
       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.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
       at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
       at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
       at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
       at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
       at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
       at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
       at java.lang.Thread.run(Thread.java:595)
      16:12:59,220 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception
      java.lang.NullPointerException
       at org.jboss.seam.ui.UISelection.getValue(UISelection.java:27)
       at org.jboss.seam.ui.HtmlLink.getParameterString(HtmlLink.java:250)
       at org.jboss.seam.ui.HtmlLink.encodeBegin(HtmlLink.java:178)
       at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:433)
       at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChildren(RendererUtils.java:419)
       at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:440)
       at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.renderColumnBody(HtmlTableRendererBase.java:313)
       at org.apache.myfaces.renderkit.html.ext.HtmlTableRenderer.renderColumnBody(HtmlTableRenderer.java:593)
       at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeColumnChild(HtmlTableRendererBase.java:282)
       at org.apache.myfaces.renderkit.html.ext.HtmlTableRenderer.encodeColumnChild(HtmlTableRenderer.java:496)
       at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeInnerHtml(HtmlTableRendererBase.java:258)
       at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeChildren(HtmlTableRendererBase.java:123)
       at org.apache.myfaces.renderkit.html.ext.HtmlTableRenderer.encodeChildren(HtmlTableRenderer.java:171)
       at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:524)
       at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChild(RendererUtils.java:436)
       at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChildren(RendererUtils.java:419)
       at org.apache.myfaces.shared_impl.renderkit.html.HtmlGroupRendererBase.encodeEnd(HtmlGroupRendererBase.java:75)
       at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:536)
       at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:242)
       at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:239)
       at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:239)
       at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:580)
       at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384)
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32)
       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:96)
       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.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
       at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
       at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
       at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
       at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
       at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
       at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
       at java.lang.Thread.run(Thread.java:595)
      


      The exception occurs in UISelection:

       public Object getValue()
       {
       Object value = Contexts.lookupInStatefulContexts(dataModel);
       int rowIndex = ( (DataModel) value ).getRowIndex();
       return value==null || rowIndex<0 ?
       null : var + ':' + dataModel + '[' + rowIndex + ']';
       }
      


      I think this should be:

       public Object getValue()
       {
       Object value = Contexts.lookupInStatefulContexts(dataModel);
       int rowIndex = value==null ? -1 : ( (DataModel) value ).getRowIndex();
       return rowIndex<0 ?
       null : var + ':' + dataModel + '[' + rowIndex + ']';
       }
      


      Someone could give me a clue why this is not working? I should give up from Tomahawk?

        • 1. Re: Tomahawk dataTable & NPE Problem
          Ciro Cavani Novice

          I am using 1.1 Beta 1 (or my own CVS build when something interesting shows), JBoss 4.0.5 from Installer Beta3.

          And I put org.jboss.seam.ui.facelet.SeamFaceletViewHandler in faces-config.xml

          I remove all tomahawk stuff and the some error occurs:

          18:42:21,152 ERROR [STDERR] 01/11/2006 18:42:21 com.sun.facelets.FaceletViewHandler handleRenderException
          SEVERE: Error Rendering View[/Data/Operation.xhtml]
          java.lang.NullPointerException
           at org.jboss.seam.ui.UISelection.getValue(UISelection.java:27)
           at org.jboss.seam.ui.HtmlLink.getParameterString(HtmlLink.java:253)
           at org.jboss.seam.ui.HtmlLink.encodeBegin(HtmlLink.java:182)
           at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChild(RendererUtils.java:433)
           at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChildren(RendererUtils.java:419)
           at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChild(RendererUtils.java:440)
           at org.apache.myfaces.shared_impl.renderkit.html.HtmlTableRendererBase.renderColumnBody(HtmlTableRendererBase.java:332)
           at org.apache.myfaces.shared_impl.renderkit.html.HtmlTableRendererBase.encodeColumnChild(HtmlTableRendererBase.java:301)
           at org.apache.myfaces.shared_impl.renderkit.html.HtmlTableRendererBase.encodeInnerHtml(HtmlTableRendererBase.java:277)
           at org.apache.myfaces.shared_impl.renderkit.html.HtmlTableRendererBase.encodeChildren(HtmlTableRendererBase.java:123)
           at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:524)
           at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:234)
           at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:239)
           at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:580)
           at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384)
           at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138)
           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
           at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
           at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45)
           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
           at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32)
           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:96)
           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.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
           at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
           at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
           at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
           at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
           at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
           at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
           at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
           at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
           at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
           at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
           at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
           at java.lang.Thread.run(Thread.java:595)
          18:42:21,159 ERROR [SeamExceptionFilter] could not destroy contexts
          java.lang.IllegalStateException: No session context active
           at org.jboss.seam.core.ConversationEntries.instance(ConversationEntries.java:85)
           at org.jboss.seam.core.Manager.getCurrentConversationEntry(Manager.java:700)
           at org.jboss.seam.core.Manager.unlockConversation(Manager.java:327)
           at org.jboss.seam.contexts.Lifecycle.flushAndDestroyContexts(Lifecycle.java:367)
           at org.jboss.seam.contexts.Lifecycle.endRequest(Lifecycle.java:281)
           at org.jboss.seam.servlet.SeamExceptionFilter.endWebRequestAfterException(SeamExceptionFilter.java:81)
           at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:56)
           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
           at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32)
           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:96)
           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.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
           at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
           at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
           at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
           at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
           at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
           at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
           at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
           at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
           at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
           at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
           at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
           at java.lang.Thread.run(Thread.java:595)
          18:42:21,161 ERROR [SeamExceptionFilter] uncaught exception handled by Seam
          javax.servlet.ServletException
           at javax.faces.webapp.FacesServlet.service(FacesServlet.java:156)
           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
           at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
           at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45)
           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
           at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32)
           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:96)
           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.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
           at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
           at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
           at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
           at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
           at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
           at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
           at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
           at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
           at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
           at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
           at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
           at java.lang.Thread.run(Thread.java:595)
          18:42:21,163 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception
          java.lang.NullPointerException
           at org.jboss.seam.ui.UISelection.getValue(UISelection.java:27)
           at org.jboss.seam.ui.HtmlLink.getParameterString(HtmlLink.java:253)
           at org.jboss.seam.ui.HtmlLink.encodeBegin(HtmlLink.java:182)
           at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChild(RendererUtils.java:433)
           at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChildren(RendererUtils.java:419)
           at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChild(RendererUtils.java:440)
           at org.apache.myfaces.shared_impl.renderkit.html.HtmlTableRendererBase.renderColumnBody(HtmlTableRendererBase.java:332)
           at org.apache.myfaces.shared_impl.renderkit.html.HtmlTableRendererBase.encodeColumnChild(HtmlTableRendererBase.java:301)
           at org.apache.myfaces.shared_impl.renderkit.html.HtmlTableRendererBase.encodeInnerHtml(HtmlTableRendererBase.java:277)
           at org.apache.myfaces.shared_impl.renderkit.html.HtmlTableRendererBase.encodeChildren(HtmlTableRendererBase.java:123)
           at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:524)
           at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:234)
           at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:239)
           at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:580)
           at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384)
           at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138)
           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
           at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
           at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45)
           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
           at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32)
           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:96)
           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.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
           at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
           at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
           at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
           at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
           at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
           at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
           at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
           at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
           at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
           at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
           at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
           at java.lang.Thread.run(Thread.java:595)