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Issue 119: DIY Recovery from Flowservice errors
1 person starred this issue and may be notified of changes. Back to list
Status:  Fixed
Owner:  shirk...@gmail.com
Closed:  Jun 2010
Cc:  zgg...@gmail.com


 
Project Member Reported by kumarami...@gmail.com, Jun 16, 2010
Before the webflow we had a nice way to recover from the flowservice errors -that is not longer the case. If the flowservice goes down we get this nasty exception. I would like it recover and display an error message using either a exception handler. Guojun did something to make it work but it is not working as far as I can tell.


Yikes!

org.springframework.webflow.execution.ActionExecutionException: Exception thrown executing [AnnotatedAction@25d285b targetAction = [EvaluateAction@32046f93 expression = tasksService.run(flow,componentMap,jobForm.name,jobForm.description), resultExpression = flowScope.job], attributes = map[[empty]]] in state 'run' of flow 'task' -- action execution attributes were 'map[[empty]]'
	at org.springframework.webflow.execution.ActionExecutor.execute(ActionExecutor.java:60)
	at org.springframework.webflow.engine.ActionState.doEnter(ActionState.java:101)
	at org.springframework.webflow.engine.State.enter(State.java:194)
	at org.springframework.webflow.engine.Transition.execute(Transition.java:227)
	at org.springframework.webflow.engine.impl.FlowExecutionImpl.execute(FlowExecutionImpl.java:391)
	at org.springframework.webflow.engine.impl.RequestControlContextImpl.execute(RequestControlContextImpl.java:214)
	at org.springframework.webflow.engine.TransitionableState.handleEvent(TransitionableState.java:119)
	at org.springframework.webflow.engine.Flow.handleEvent(Flow.java:555)
	at org.springframework.webflow.engine.impl.FlowExecutionImpl.handleEvent(FlowExecutionImpl.java:386)
	at org.springframework.webflow.engine.impl.RequestControlContextImpl.handleEvent(RequestControlContextImpl.java:210)
	at org.springframework.webflow.engine.ViewState.handleEvent(ViewState.java:230)
	at org.springframework.webflow.engine.ViewState.resume(ViewState.java:196)
	at org.springframework.webflow.engine.Flow.resume(Flow.java:545)
	at org.springframework.webflow.engine.impl.FlowExecutionImpl.resume(FlowExecutionImpl.java:259)
	at org.springframework.webflow.executor.FlowExecutorImpl.resumeExecution(FlowExecutorImpl.java:169)
	at org.springframework.webflow.mvc.servlet.FlowHandlerAdapter.handle(FlowHandlerAdapter.java:183)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:771)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:716)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
	at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:118)
	at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:52)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
	at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:164)
	at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:141)
	at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:90)
	at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:406)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
	at org.imirsel.nema.webapp.filter.LocaleFilter.doFilterInternal(LocaleFilter.java:74)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
	at com.opensymphony.clickstream.ClickstreamFilter.doFilter(ClickstreamFilter.java:42)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
	at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:359)
	at org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)
	at org.springframework.security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
	at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
	at org.springframework.security.ui.ExceptionTranslationFilter.doFilterHttp(ExceptionTranslationFilter.java:101)
	at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
	at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
	at org.springframework.security.providers.anonymous.AnonymousProcessingFilter.doFilterHttp(AnonymousProcessingFilter.java:105)
	at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
	at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
	at org.springframework.security.ui.rememberme.RememberMeProcessingFilter.doFilterHttp(RememberMeProcessingFilter.java:116)
	at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
	at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
	at org.springframework.security.wrapper.SecurityContextHolderAwareRequestFilter.doFilterHttp(SecurityContextHolderAwareRequestFilter.java:91)
	at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
	at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
	at org.springframework.security.ui.basicauth.BasicProcessingFilter.doFilterHttp(BasicProcessingFilter.java:172)
	at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
	at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
	at org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:268)
	at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
	at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
	at org.springframework.security.ui.logout.LogoutFilter.doFilterHttp(LogoutFilter.java:87)
	at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
	at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
	at org.springframework.security.ui.SessionFixationProtectionFilter.doFilterHttp(SessionFixationProtectionFilter.java:61)
	at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
	at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
	at org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235)
	at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
	at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
	at org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:174)
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
	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:765)
	at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
	at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
	at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
	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$RequestHandler.content(HttpConnection.java:938)
	at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)
	at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
	at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
	at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
	at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Caused by: org.springframework.remoting.RemoteAccessException: Could not access remote service [rmi://nema.lis.uiuc.edu:1099/FlowService]; nested exception is java.rmi.UnmarshalException: Error unmarshaling return header; nested exception is: 
	java.io.EOFException
	at org.springframework.remoting.rmi.RmiClientInterceptorUtils.convertRmiAccessException(RmiClientInterceptorUtils.java:192)
	at org.springframework.remoting.rmi.RmiClientInterceptor.doInvoke(RmiClientInterceptor.java:347)
	at org.springframework.remoting.rmi.RmiClientInterceptor.invoke(RmiClientInterceptor.java:259)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
	at $Proxy27.executeJob(Unknown Source)
	at org.imirsel.nema.webapp.webflow.TasksServiceImpl.run(TasksServiceImpl.java:359)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.springframework.expression.spel.support.ReflectiveMethodExecutor.execute(ReflectiveMethodExecutor.java:58)
	at org.springframework.expression.spel.ast.MethodReference.getValueInternal(MethodReference.java:76)
	at org.springframework.expression.spel.ast.CompoundExpression.getValueInternal(CompoundExpression.java:57)
	at org.springframework.expression.spel.ast.SpelNodeImpl.getTypedValue(SpelNodeImpl.java:102)
	at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:97)
	at org.springframework.binding.expression.spel.SpringELExpression.getValue(SpringELExpression.java:78)
	at org.springframework.webflow.action.EvaluateAction.doExecute(EvaluateAction.java:75)
	at org.springframework.webflow.action.AbstractAction.execute(AbstractAction.java:188)
	at org.springframework.webflow.execution.AnnotatedAction.execute(AnnotatedAction.java:145)
	at org.springframework.webflow.execution.ActionExecutor.execute(ActionExecutor.java:51)
	... 90 more
Caused by: java.rmi.UnmarshalException: Error unmarshaling return header; nested exception is: 
	java.io.EOFException
	at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:209)
	at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:142)
	at org.springframework.remoting.rmi.RmiInvocationWrapper_Stub.invoke(Unknown Source)
	at org.springframework.remoting.rmi.RmiClientInterceptor.doInvoke(RmiClientInterceptor.java:398)
	at org.springframework.remoting.rmi.RmiClientInterceptor.doInvoke(RmiClientInterceptor.java:344)
	... 109 more
Caused by: java.io.EOFException
	at java.io.DataInputStream.readByte(DataInputStream.java:250)
	at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:195)
	... 113 more


Jun 16, 2010
Project Member #1 zgg...@gmail.com
fixed
Jun 16, 2010
Project Member #2 zgg...@gmail.com
add a error handling page in webflow. 
Status: Fixed

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