[Building Sakai] Property dropDown is not readable for object of class

Mon Mar 17 05:36:17 PDT 2014

>From a grep, it's lesson builder (simplePageBean.dropDown)

On Mon, Mar 17, 2014 at 10:40 PM, David Wafula Wanyonyi <
DavidWafula.Wanyonyi at wits.ac.za> wrote:

>  Dear all,
> This started appearing in the logs recently, like every second. Does
> anyone know where it could be coming from ?
>
> Successive lines until stack trace show causes progressing to exception
> site:
> Error getting bean value for path simplePageBean.dropDown
> --> Property dropDown is not readable for object of class java.lang.Object
> java.lang.IllegalArgumentException: Property dropDown is not readable for
> object of class java.lang.Object
>         at uk.org.ponder.beanutil.BeanUtil.navigate(BeanUtil.java:84)
>         at
> uk.org.ponder.mapping.support.DARApplier.getBeanValue(DARApplier.java:129)
>         at
> uk.org.ponder.mapping.support.DARApplier.getFlattenedValue(DARApplier.java:85)
>         at
> uk.org.ponder.rsf.componentprocessor.ValueFixer.processComponent(ValueFixer.java:130)
>         at
> uk.org.ponder.rsf.componentprocessor.ViewProcessor.performFixup(ViewProcessor.java:97)
>         at
> uk.org.ponder.rsf.componentprocessor.ViewProcessor.getProcessedView(ViewProcessor.java:60)
>         at
> uk.org.ponder.rsf.processor.support.RSFRenderHandler$1.run(RSFRenderHandler.java:81)
>         at
> uk.org.ponder.rsf.processor.support.RequestInvoker$1.run(RequestInvoker.java:46)
>         at
> uk.org.ponder.util.CollectingRunnableInvoker$1.run(CollectingRunnableInvoker.java:25)
>         at
> uk.org.ponder.rsf.flow.support.BasicScopedAlterationWrapper.invokeRunnable(BasicScopedAlterationWrapper.java:59)
>         at
> uk.org.ponder.rsf.flow.support.BasicScopedAlterationWrapper$$FastClassByCGLIB$$84f89202.invoke(<generated>)
>         at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
>         at
> org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:628)
>         at
> uk.org.ponder.rsf.flow.support.BasicScopedAlterationWrapper$$EnhancerByCGLIB$$100f0a2f.invokeRunnable(<generated>)
>         at
> uk.org.ponder.rsf.flow.support.BasicScopedAlterationWrapper$$FastClassByCGLIB$$84f89202.invoke(<generated>)
>         at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
>         at
> org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:628)
>         at
> uk.org.ponder.rsf.flow.support.BasicScopedAlterationWrapper$$EnhancerByCGLIB$$100f0a2f.invokeRunnable(<generated>)
>         at
> uk.org.ponder.util.CollectingRunnableInvoker$1.run(CollectingRunnableInvoker.java:29)
>         at
> uk.org.ponder.util.CollectingRunnableInvoker.invokeWrappers(CollectingRunnableInvoker.java:22)
>         at
> uk.org.ponder.util.CollectingRunnableInvoker.invokeRunnable(CollectingRunnableInvoker.java:14)
>         at
> uk.org.ponder.rsf.processor.support.RequestInvoker.invokeRunnable(RequestInvoker.java:39)
>         at
> uk.org.ponder.rsf.processor.support.RSFRenderHandler.handle(RSFRenderHandler.java:75)
>         at
> uk.org.ponder.rsf.processor.support.RSFRenderHandler$$FastClassByCGLIB$$5bda3a3d.invoke(<generated>)
>         at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
>         at
> org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:628)
>         at
> uk.org.ponder.rsf.processor.support.RSFRenderHandler$$EnhancerByCGLIB$$30c0b788.handle(<generated>)
>         at
> uk.org.ponder.rsf.processor.support.RenderHandlerBracketer.handle(RenderHandlerBracketer.java:82)
>         at
> uk.org.ponder.rsf.processor.support.RenderHandlerBracketer$$FastClassByCGLIB$$3055fa0f.invoke(<generated>)
>         at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
>         at
> org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:628)
>         at
> uk.org.ponder.rsf.processor.support.RenderHandlerBracketer$$EnhancerByCGLIB$$3580c76e.handle(<generated>)
>         at
> uk.org.ponder.rsf.processor.support.RootHandlerBeanBase.handleGet(RootHandlerBeanBase.java:97)
>         at
> uk.org.ponder.rsf.processor.support.RootHandlerBeanBase.handle(RootHandlerBeanBase.java:79)
>         at sun.reflect.GeneratedMethodAccessor2383.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:601)
>         at
> uk.org.ponder.reflect.JDKReflectiveCache.invokeMethod(JDKReflectiveCache.java:23)
>         at
> uk.org.ponder.reflect.JDKReflectiveCache.invokeMethod(JDKReflectiveCache.java:17)
>         at
> uk.org.ponder.reflect.JDKReflectiveCache.invokeMethod(JDKReflectiveCache.java:77)
>         at
> uk.org.ponder.rsac.support.RSACBeanLocatorImpl.createBean(RSACBeanLocatorImpl.java:553)
>         at
> uk.org.ponder.rsac.support.RSACBeanLocatorImpl.access$000(RSACBeanLocatorImpl.java:75)
>         at
> uk.org.ponder.rsac.support.RSACBeanLocatorImpl$1.run(RSACBeanLocatorImpl.java:449)
>         at
> uk.org.ponder.rsac.RSACErrorBridge.invokeRunnable(RSACErrorBridge.java:38)
>         at
> uk.org.ponder.rsac.support.RSACBeanLocatorImpl.createBean(RSACBeanLocatorImpl.java:447)
>         at
> uk.org.ponder.rsac.support.RSACBeanLocatorImpl.getLocalBean(RSACBeanLocatorImpl.java:348)
>         at
> uk.org.ponder.rsac.support.RSACBeanLocatorImpl.getBean(RSACBeanLocatorImpl.java:379)
>         at
> uk.org.ponder.rsac.support.PerRequestInfo$1.locateBean(PerRequestInfo.java:49)
>         at
> uk.ac.cam.caret.sakai.rsf.servlet.ReasonableSakaiServlet.service(ReasonableSakaiServlet.java:65)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
>         at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
>         at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
>         at
> org.sakaiproject.util.RequestFilter.doFilter(RequestFilter.java:634)
>         at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
>         at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
>         at
> org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
>         at
> org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487)
>         at
> org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:379)
>         at
> org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
>         at
> org.sakaiproject.tool.impl.ActiveToolComponent$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:472)
>         at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
>         at
> org.apache.catalina.ha.session.JvmRouteBinderValve.invoke(JvmRouteBinderValve.java:219)
>         at
> org.apache.catalina.ha.tcp.ReplicationValve.invoke(ReplicationValve.java:335)
>         at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
>         at
> org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
>         at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
>         at
> org.apache.catalina.ha.tcp.ReplicationValve.invoke(ReplicationValve.java:335)
>         at
> org.apache.catalina.ha.session.JvmRouteBinderValve.invoke(JvmRouteBinderValve.java:219)
>         at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
>         at
> org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
>         at
> org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
>         at
> org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
>         at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>         at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>         at java.lang.Thread.run(Thread.java:722)
>
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