[ 
https://issues.apache.org/jira/browse/ISIS-893?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Dan Haywood updated ISIS-893:
-----------------------------
    Summary: [WON'T FIX] (Cosmetics): If attempt to invoke non-existent action, 
get nasty error message  (was: (Cosmetics): If attempt to invoke non-existent 
action, get nasty error message)

> [WON'T FIX] (Cosmetics): If attempt to invoke non-existent action, get nasty 
> error message
> ------------------------------------------------------------------------------------------
>
>                 Key: ISIS-893
>                 URL: https://issues.apache.org/jira/browse/ISIS-893
>             Project: Isis
>          Issue Type: Improvement
>          Components: Core, Core: Viewer: Wicket
>    Affects Versions: viewer-wicket-1.6.0, core-1.6.0
>            Reporter: Dan Haywood
>            Priority: Minor
>             Fix For: 2.7.0
>
>
> see the actionId="fooBar"
> diverted to error page with following stack trace:
> 15:59:41,112  [RequestCycleExtra    577739874@qtp-1148559558-0 WARN ]  
> Handling the following exception
> org.apache.wicket.WicketRuntimeException: Can't instantiate page using 
> constructor 'public 
> org.apache.isis.viewer.wicket.ui.pages.actionprompt.ActionPromptPage(org.apache.wicket.request.mapper.parameter.PageParameters)'
>  and argument 'actionArgs=[abc], actionArgs=[Professional], 
> actionArgs=[$nullArg$], actionArgs=[20140925], actionArgs=[$nullArg$], 
> objectOid=[dom.todo.ToDoItems:1], actionOwningSpec=[dom.todo.ToDoItems], 
> actionId=[fooBar(java.lang.String,dom.todo.ToDoItem$Category,dom.todo.ToDoItem$Subcategory,org.joda.time.LocalDate,java.math.BigDecimal)],
>  actionType=[USER]'. An exception has been thrown during construction!
>       at 
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:194)
>       at 
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:99)
>       at 
> org.apache.wicket.DefaultMapperContext.newPageInstance(DefaultMapperContext.java:137)
>       at 
> org.apache.wicket.core.request.handler.PageProvider.resolvePageInstance(PageProvider.java:268)
>       at 
> org.apache.wicket.core.request.handler.PageProvider.getPageInstance(PageProvider.java:166)
>       at 
> org.apache.wicket.request.handler.render.PageRenderer.getPage(PageRenderer.java:78)
>       at 
> org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:100)
>       at 
> org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:221)
>       at 
> org.apache.wicket.core.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:175)
>       at 
> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:862)
>       at 
> org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
>       at 
> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:261)
>       at 
> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:218)
>       at 
> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:289)
>       at 
> org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:259)
>       at 
> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:201)
>       at 
> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:282)
>       at 
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
>       at 
> org.apache.isis.core.webapp.diagnostics.IsisLogOnExceptionFilter.doFilter(IsisLogOnExceptionFilter.java:52)
>       at 
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
>       at 
> org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
>       at 
> org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
>       at 
> org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
>       at 
> org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
>       at 
> org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383)
>       at 
> org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
>       at 
> org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
>       at 
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
>       at 
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
>       at 
> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
>       at 
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
>       at 
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
>       at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
>       at 
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
>       at org.mortbay.jetty.Server.handle(Server.java:326)
>       at 
> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
>       at 
> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
>       at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
>       at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
>       at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
>       at 
> org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
>       at 
> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> Caused by: java.lang.reflect.InvocationTargetException
>       at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>       at 
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
>       at 
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
>       at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
>       at 
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:171)
>       ... 41 more
> Caused by: java.lang.NullPointerException
>       at 
> org.apache.isis.viewer.wicket.model.mementos.ActionMemento.<init>(ActionMemento.java:62)
>       at 
> org.apache.isis.viewer.wicket.model.mementos.ActionMemento.<init>(ActionMemento.java:50)
>       at 
> org.apache.isis.viewer.wicket.model.models.ActionModel.newActionMementoFrom(ActionModel.java:277)
>       at 
> org.apache.isis.viewer.wicket.model.models.ActionModel.<init>(ActionModel.java:267)
>       at 
> org.apache.isis.viewer.wicket.model.models.ActionModel.createForPersistent(ActionModel.java:111)
>       at 
> org.apache.isis.viewer.wicket.ui.pages.actionprompt.ActionPromptPage.buildModel(ActionPromptPage.java:64)
>       at 
> org.apache.isis.viewer.wicket.ui.pages.actionprompt.ActionPromptPage.<init>(ActionPromptPage.java:52)
>       ... 46 more
> 15:59:41,116  [RequestCycleExtra    577739874@qtp-1148559558-0 WARN ]  
> ********************************



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