[Building Sakai] Lessons Tool NullPointerException
Jaco Gillman
jaco at opencollab.co.za
Thu Jan 9 05:43:28 PST 2014
Hi Neal
Sorry... I noticed I had the wrong Tool name in the Subject - it is suppose
to be the Forums tool where this occurred.
I asked our client what exactly he did and here is his reply: I was busy
creating forums, I am not sure if I went to click save or back and the site
froze up. I really can't give you any more info than that. The bug was
really just
brief and after I sent the report and refreshed the page it went back to
normal and has been fine since then.
Hope this helps :)
Regards,
*Jaco Gillman*
Java Developer
opencollab
*Tel*: +27 21 970 4017 | *Fax*: +27 21 914 3098
*Email*: jaco at opencollab.co.za | *Skype*: gillmanjc
*Web*: www.opencollab.co.za
On 9 January 2014 15:08, Neal Caidin <neal.caidin at apereo.org> wrote:
> Hi Jaco,
>
> How can the issue be reproduced?
>
> Thanks,
> Neal
>
>
> Jaco Gillman <jaco at opencollab.co.za>
> January 9, 2014 at 7:53 AM
> Hi all
>
> We have installed a new Sakai 2.9.3 version and came across the NullPointerException
> exception below. Have someone else came across the same issue?
>
>
> stack trace:
>
>
> org.sakaiproject.portal.api.PortalHandlerException:
> org.sakaiproject.tool.api.ToolException: org.apache.jasper.JasperException:
> An exception occurred processing JSP page /jsp/
> dfReviseTopicSettingsAttach.jsp at line 89
>
> 86: </h:panelGrid>
> 87: <%-- //designNote: rendered attr below should
> resolve to false only if there is no prior short description
> 88: and if there is server property
> (TBD) saying not to use it - below just checking for pre-existing short
> description--%>
> 89: <h:panelGrid columns="1" columnClasses="longtext"
> rendered="#{ForumTool.showTopicShortDescription}">
> 90: <h:panelGroup>
> 91: <h:outputLabel id="outputLabel1"
> for="topic_shortDescription" value="#{msgs.cdfm_shortDescription}" />
> 92:
>
>
> Stacktrace:
> at org.sakaiproject.portal.charon.SkinnableCharonPortal.
> doGet(SkinnableCharonPortal.java:894)
> caused by: org.sakaiproject.tool.api.ToolException: org.apache.jasper.JasperException:
> An exception occurred processing JSP page /jsp/
> dfReviseTopicSettingsAttach.jsp at line 89
>
> 86: </h:panelGrid>
> 87: <%-- //designNote: rendered attr below should
> resolve to false only if there is no prior short description
> 88: and if there is server property
> (TBD) saying not to use it - below just checking for pre-existing short
> description--%>
> 89: <h:panelGrid columns="1" columnClasses="longtext"
> rendered="#{ForumTool.showTopicShortDescription}">
> 90: <h:panelGroup>
> 91: <h:outputLabel id="outputLabel1"
> for="topic_shortDescription" value="#{msgs.cdfm_shortDescription}" />
> 92:
>
>
> Stacktrace:
> at org.sakaiproject.portal.charon.SkinnableCharonPortal.forwardTool(
> SkinnableCharonPortal.java:1483)
> caused by: org.apache.jasper.JasperException: An exception occurred
> processing JSP page /jsp/dfReviseTopicSettingsAttach.jsp at line 89
>
> 86: </h:panelGrid>
> 87: <%-- //designNote: rendered attr below should
> resolve to false only if there is no prior short description
> 88: and if there is server property
> (TBD) saying not to use it - below just checking for pre-existing short
> description--%>
> 89: <h:panelGrid columns="1" columnClasses="longtext"
> rendered="#{ForumTool.showTopicShortDescription}">
> 90: <h:panelGroup>
> 91: <h:outputLabel id="outputLabel1"
> for="topic_shortDescription" value="#{msgs.cdfm_shortDescription}" />
> 92:
>
>
> Stacktrace:
> at org.apache.jasper.servlet.JspServletWrapper.service(
> JspServletWrapper.java:455)
> caused by: javax.servlet.ServletException: javax.servlet.jsp.JspException:
> javax.faces.el.EvaluationException: javax.faces.el.EvaluationException:
> Error getting property 'showTopicShortDescription' from bean of type
> org.sakaiproject.tool.messageforums.DiscussionForumTool:
> java.lang.NullPointerException
> at org.apache.jasper.runtime.PageContextImpl.handlePageException(
> PageContextImpl.java:841)
> caused by: javax.faces.el.EvaluationException: javax.faces.el.EvaluationException:
> Error getting property 'showTopicShortDescription' from bean of type
> org.sakaiproject.tool.messageforums.DiscussionForumTool:
> java.lang.NullPointerException
> at com.sun.faces.el.ValueBindingImpl.getValue(
> ValueBindingImpl.java:143)
> caused by: javax.faces.el.EvaluationException: Error getting property
> 'showTopicShortDescription' from bean of type org.sakaiproject.tool.
> messageforums.DiscussionForumTool: java.lang.NullPointerException
> at com.sun.faces.el.impl.ArraySuffix.evaluate(ArraySuffix.java:187)
> caused by: java.lang.NullPointerException
> at org.sakaiproject.tool.messageforums.DiscussionForumTool.
> getShowTopicShortDescription(DiscussionForumTool.java:7789)
> at sun.reflect.GeneratedMethodAccessor2287.invoke(null:-1)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(
> DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at com.sun.faces.el.PropertyResolverImpl.getValue(
> PropertyResolverImpl.java:99)
> at com.sun.faces.el.impl.ArraySuffix.evaluate(ArraySuffix.java:187)
> at com.sun.faces.el.impl.ComplexValue.evaluate(ComplexValue.java:171)
> at com.sun.faces.el.impl.ExpressionEvaluatorImpl.evaluate(
> ExpressionEvaluatorImpl.java:263)
> at com.sun.faces.el.ValueBindingImpl.getValue(
> ValueBindingImpl.java:160)
> at com.sun.faces.el.ValueBindingImpl.getValue(
> ValueBindingImpl.java:143)
> at javax.faces.component.UIComponentBase.isRendered(
> UIComponentBase.java:335)
> at javax.faces.webapp.UIComponentTag.shouldBeSuppressed(
> UIComponentTag.java:1289)
> at javax.faces.webapp.UIComponentTag.doStartTag(
> UIComponentTag.java:497)
> at com.sun.faces.taglib.html_basic.PanelGridTag.doStartTag(
> PanelGridTag.java:442)
> at org.apache.jsp.jsp.dfReviseTopicSettingsAttach_jsp._jspx_meth_h_
> 005fpanelGrid_005f1(dfReviseTopicSettingsAttach_jsp.java:1502)
> at org.apache.jsp.jsp.dfReviseTopicSettingsAttach_jsp._jspService(
> dfReviseTopicSettingsAttach_jsp.java:451)
> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
> at org.apache.jasper.servlet.JspServletWrapper.service(
> JspServletWrapper.java:432)
> at org.apache.jasper.servlet.JspServlet.serviceJspFile(
> JspServlet.java:390)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
> ApplicationFilterChain.java:305)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(
> ApplicationFilterChain.java:210)
> at org.apache.catalina.core.ApplicationDispatcher.invoke(
> ApplicationDispatcher.java:749)
> at org.apache.catalina.core.ApplicationDispatcher.processRequest(
> ApplicationDispatcher.java:487)
> at org.apache.catalina.core.ApplicationDispatcher.doForward(
> ApplicationDispatcher.java:412)
> at org.apache.catalina.core.ApplicationDispatcher.forward(
> ApplicationDispatcher.java:339)
> at com.sun.faces.context.ExternalContextImpl.dispatch(
> ExternalContextImpl.java:346)
> at com.sun.faces.application.ViewHandlerImpl.renderView(
> ViewHandlerImpl.java:152)
> at org.sakaiproject.jsf.app.SakaiViewHandler.renderView(
> SakaiViewHandler.java:159)
> at com.sun.faces.lifecycle.RenderResponsePhase.execute(
> RenderResponsePhase.java:107)
> at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:245)
> at com.sun.faces.lifecycle.LifecycleImpl.render(
> LifecycleImpl.java:137)
> at javax.faces.webapp.FacesServlet.service(FacesServlet.java:214)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
> ApplicationFilterChain.java:305)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(
> ApplicationFilterChain.java:210)
> at org.sakaiproject.util.RequestFilter.doFilter(
> RequestFilter.java:634)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
> ApplicationFilterChain.java:243)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(
> ApplicationFilterChain.java:210)
> at org.apache.catalina.core.ApplicationDispatcher.invoke(
> ApplicationDispatcher.java:749)
> at org.apache.catalina.core.ApplicationDispatcher.processRequest(
> ApplicationDispatcher.java:487)
> at org.apache.catalina.core.ApplicationDispatcher.doForward(
> ApplicationDispatcher.java:412)
> at org.apache.catalina.core.ApplicationDispatcher.forward(
> ApplicationDispatcher.java:339)
> at org.sakaiproject.tool.messageforums.MessageForumsFilePickerServlet
> .dispatch(MessageForumsFilePickerServlet.java:166)
> at org.sakaiproject.jsf.util.JsfTool.doGet(JsfTool.java:241)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
> ApplicationFilterChain.java:305)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(
> ApplicationFilterChain.java:210)
> at org.sakaiproject.util.RequestFilter.doFilter(
> RequestFilter.java:634)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
> ApplicationFilterChain.java:243)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(
> ApplicationFilterChain.java:210)
> at org.apache.catalina.core.ApplicationDispatcher.invoke(
> ApplicationDispatcher.java:749)
> at org.apache.catalina.core.ApplicationDispatcher.processRequest(
> ApplicationDispatcher.java:487)
> at org.apache.catalina.core.ApplicationDispatcher.doForward(
> ApplicationDispatcher.java:379)
> at org.apache.catalina.core.ApplicationDispatcher.forward(
> ApplicationDispatcher.java:339)
> at org.sakaiproject.tool.impl.ActiveToolComponent$
> MyActiveTool.forward(ActiveToolComponent.java:511)
> at org.sakaiproject.portal.charon.SkinnableCharonPortal.forwardTool(
> SkinnableCharonPortal.java:1483)
> at org.sakaiproject.portal.charon.handlers.ToolHandler.
> doTool(ToolHandler.java:213)
> at org.sakaiproject.portal.charon.handlers.ToolHandler.
> doGet(ToolHandler.java:96)
> at org.sakaiproject.portal.charon.SkinnableCharonPortal.
> doGet(SkinnableCharonPortal.java:894)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
> ApplicationFilterChain.java:305)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(
> ApplicationFilterChain.java:210)
> at org.sakaiproject.util.RequestFilter.doFilter(
> RequestFilter.java:695)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
> ApplicationFilterChain.java:243)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(
> ApplicationFilterChain.java:210)
> at org.apache.catalina.core.StandardWrapperValve.invoke(
> StandardWrapperValve.java:222)
> at org.apache.catalina.core.StandardContextValve.invoke(
> StandardContextValve.java:123)
> at org.apache.catalina.authenticator.AuthenticatorBase.invoke(
> AuthenticatorBase.java:502)
> at org.apache.catalina.core.StandardHostValve.invoke(
> StandardHostValve.java:171)
> at org.apache.catalina.valves.ErrorReportValve.invoke(
> ErrorReportValve.java:100)
> at org.apache.catalina.valves.AccessLogValve.invoke(
> AccessLogValve.java:953)
> at org.apache.catalina.core.StandardEngineValve.invoke(
> StandardEngineValve.java:118)
> at org.apache.catalina.connector.CoyoteAdapter.service(
> CoyoteAdapter.java:408)
> at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:200)
> at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.
> process(AbstractProtocol.java:603)
> at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.
> run(JIoEndpoint.java:310)
> at java.util.concurrent.ThreadPoolExecutor$Worker.
> runTask(ThreadPoolExecutor.java:895)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(
> ThreadPoolExecutor.java:918)
> at java.lang.Thread.run(Thread.java:662)
>
>
> Regards,
>
> *Jaco Gillman*
>
> Java Developer
>
> opencollab
>
> *Tel*: +27 21 970 4017 | *Fax*: +27 21 914 3098
>
> *Email*: jaco at opencollab.co.za | *Skype*: gillmanjc
>
> *Web*: www.opencollab.co.za
>
> ------------------------------
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> za/email-disclaimer
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>
> --
> Neal Caidin
> Sakai Community Coordinator
> Apereo Foundation
> neal.caidin at apereo.org
> Skype me! (but let me know in advance for the first interaction) - nealkdin
>
>
--
------------------------------
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