Hallo!
Ich versuche hier, eine JavaEE-Anwendung aufzubauen und bekommen leider nur Fehlermeldungen:
Die Seite lässt sich laden und es wird auch ein Eintrag aus der Datenbank angezeigt. Wenn ich diesen Eintrag aber editieren will, erhalte ich folgenden Fehler:
Leider werde ich daraus überhaupt nicht schlau. Ich weiß nicht, wo ich versuche, diesen Cast auszuführen... Ich weiß auch nicht, wie viel Code ich hier zeigen soll...
Für Tipps und Hilfe wäre ich sehr dankbar!
Ich versuche hier, eine JavaEE-Anwendung aufzubauen und bekommen leider nur Fehlermeldungen:
Die Seite lässt sich laden und es wird auch ein Eintrag aus der Datenbank angezeigt. Wenn ich diesen Eintrag aber editieren will, erhalte ich folgenden Fehler:
Code:
2015-01-30T13:02:35.176+0100|Warnung: #{aktionenUebersichtController.doAktionBearbeiten(aktion)}: java.lang.IllegalArgumentException: Cannot convert abc.models.Aktion@3c0436d2 of type class abc.models.Aktion to class abc.models.Aktion
javax.faces.FacesException: #{aktionenUebersichtController.doAktionBearbeiten(aktion)}: java.lang.IllegalArgumentException: Cannot convert abc.models.Aktion@3c0436d2 of type class abc.models.Aktion to class abc.models.Aktion
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:118)
at javax.faces.component.UICommand.broadcast(UICommand.java:315)
at javax.faces.component.UIData.broadcast(UIData.java:1108)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
at java.lang.Thread.run(Thread.java:745)
Caused by: javax.faces.el.EvaluationException: java.lang.IllegalArgumentException: Cannot convert abc.models.Aktion@3c0436d2 of type class abc.models.Aktion to class abc.models.Aktion
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:101)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
... 35 more
Caused by: java.lang.IllegalArgumentException: Cannot convert abc.models.Aktion@3c0436d2 of type class abc.models.Aktion to class abc.models.Aktion
at com.sun.el.lang.ELSupport.coerceToType(ELSupport.java:417)
at com.sun.el.ExpressionFactoryImpl.coerceToType(ExpressionFactoryImpl.java:77)
at javax.el.ELContext.convertToType(ELContext.java:473)
at com.sun.el.lang.EvaluationContext.convertToType(EvaluationContext.java:166)
at javax.el.ELUtil.invokeMethod(ELUtil.java:320)
at javax.el.BeanELResolver.invoke(BeanELResolver.java:536)
at javax.el.CompositeELResolver.invoke(CompositeELResolver.java:256)
at com.sun.el.parser.AstValue.invoke(AstValue.java:269)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)
at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)
at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)
... 36 more
2015-01-30T13:02:35.184+0100|FATAL: JSF1073: javax.faces.FacesException erfasst w�hrend Verarbeitung von INVOKE_APPLICATION 5 : UIComponent-ClientId=, Message=#{aktionenUebersichtController.doAktionBearbeiten(aktion)}: java.lang.IllegalArgumentException: Cannot convert abc.models.Aktion@3c0436d2 of type class abc.models.Aktion to class abc.models.Aktion
2015-01-30T13:02:35.185+0100|FATAL: #{aktionenUebersichtController.doAktionBearbeiten(aktion)}: java.lang.IllegalArgumentException: Cannot convert abc.models.Aktion@3c0436d2 of type class abc.models.Aktion to class abc.models.Aktion
javax.faces.FacesException: #{aktionenUebersichtController.doAktionBearbeiten(aktion)}: java.lang.IllegalArgumentException: Cannot convert abc.models.Aktion@3c0436d2 of type class abc.models.Aktion to class abc.models.Aktion
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:89)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
at java.lang.Thread.run(Thread.java:745)
Caused by: javax.faces.FacesException: #{aktionenUebersichtController.doAktionBearbeiten(aktion)}: java.lang.IllegalArgumentException: Cannot convert abc.models.Aktion@3c0436d2 of type class abc.models.Aktion to class abc.models.Aktion
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:118)
at javax.faces.component.UICommand.broadcast(UICommand.java:315)
at javax.faces.component.UIData.broadcast(UIData.java:1108)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
... 30 more
Caused by: javax.faces.el.EvaluationException: java.lang.IllegalArgumentException: Cannot convert abc.models.Aktion@3c0436d2 of type class abc.models.Aktion to class abc.models.Aktion
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:101)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
... 35 more
Caused by: java.lang.IllegalArgumentException: Cannot convert abc.models.Aktion@3c0436d2 of type class abc.models.Aktion to class abc.models.Aktion
at com.sun.el.lang.ELSupport.coerceToType(ELSupport.java:417)
at com.sun.el.ExpressionFactoryImpl.coerceToType(ExpressionFactoryImpl.java:77)
at javax.el.ELContext.convertToType(ELContext.java:473)
at com.sun.el.lang.EvaluationContext.convertToType(EvaluationContext.java:166)
at javax.el.ELUtil.invokeMethod(ELUtil.java:320)
at javax.el.BeanELResolver.invoke(BeanELResolver.java:536)
at javax.el.CompositeELResolver.invoke(CompositeELResolver.java:256)
at com.sun.el.parser.AstValue.invoke(AstValue.java:269)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)
at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)
at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)
... 36 more
Leider werde ich daraus überhaupt nicht schlau. Ich weiß nicht, wo ich versuche, diesen Cast auszuführen... Ich weiß auch nicht, wie viel Code ich hier zeigen soll...
Für Tipps und Hilfe wäre ich sehr dankbar!