Major The following is from CTools production (2.6.0 for Calendar) automatic bug report:
stack trace:
org.sakaiproject.portal.api.PortalHandlerException: org.sakaiproject.tool.api.ToolException
at org.sakaiproject.portal.charon.SkinnableCharonPortal.doGet(SkinnableCharonPortal.java:768)
caused by: org.sakaiproject.tool.api.ToolException
at org.sakaiproject.cheftool.ToolServlet.doGet(ToolServlet.java:227)
caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
caused by: java.lang.NullPointerException
at org.sakaiproject.calendar.tool.CalendarAction.buildDescriptionContext(CalendarAction.java:3010)
at org.sakaiproject.calendar.tool.CalendarAction.buildMainPanelContext(CalendarAction.java:2481)
at sun.reflect.GeneratedMethodAccessor7013.invoke(null:-1)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:592)
at org.sakaiproject.cheftool.VelocityPortletPaneledAction.toolModeDispatch(VelocityPortletPaneledAction.java:401)
at org.sakaiproject.cheftool.ToolServlet.doGet(ToolServlet.java:227)
at org.sakaiproject.cheftool.VelocityPortletPaneledAction.doGet(VelocityPortletPaneledAction.java:1014)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
at org.sakaiproject.vm.ComponentServlet.service(ComponentServlet.java:56)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.sakaiproject.util.RequestFilter.doFilter(RequestFilter.java:565)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:461)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:364)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
at org.sakaiproject.tool.impl.ActiveToolComponent$MyActiveTool.forward(ActiveToolComponent.java:486)
at org.sakaiproject.portal.charon.SkinnableCharonPortal.forwardTool(SkinnableCharonPortal.java:1216)
at org.sakaiproject.portal.charon.handlers.ToolHandler.doTool(ToolHandler.java:188)
at org.sakaiproject.portal.charon.handlers.ToolHandler.doGet(ToolHandler.java:93)
at org.sakaiproject.portal.charon.SkinnableCharonPortal.doGet(SkinnableCharonPortal.java:768)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.sakaiproject.util.RequestFilter.doFilter(RequestFilter.java:616)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:548)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:595)
Tool Placement:
No Placement
To reproduce:
1. create a site with both Assignment tool and Schedule tool.
2. create an assignment and choose add due date to Schedule tool.
3. remove the assignment tool.
4. go to the schedule tool and try to access the event and see the error.
I will file another jira for the fact that remove assignment tool doesn't clean out all events from Schedule tool. But even after that, this is still a desired fix since the schedule tool might not refresh before user clicks on the event link.
I have attached a possible patch here.