java.lang.NullPointerException at com.sun.faces.el.ELUtils.coerce











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0
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i am using javax.faces-2.2.9.jar on websphere 8.5
on cluster environment, and in my web.xml i have the <distributable /> tag and also the ClientSideSecretKey :



<env-entry>

        <env-entry-name>jsf/ClientSideSecretKey</env-entry-name> 

        <env-entry-type>java.lang.String</env-entry-type>

        <env-entry-value>somekeyhere</env-entry-value>

    </env-entry>


i am using jboss-el-2.0.0.GA.jar :



<context-param>     

      <param-name>com.sun.faces.expressionFactory</param-name>

      <param-value>org.jboss.el.ExpressionFactoryImpl</param-value>   

    </context-param>


1- my session bean :



import javax.faces.bean.ManagedBean;

import javax.faces.bean.SessionScoped;



@ManagedBean(name = "mySessionBean")

@SessionScoped

public class UserBean {



}


2- my view bean : 



@ManagedBean(name = "myViewBean")

@ViewScoped

public class MyViewBean {



    @ManagedProperty(value = "#{mySessionBean}")

    private MySessionBean mySessionBean;



}


my application works fine most of the time, but sometimes i see in the log file the following exception which i don't know the reason for it:



Unable to set property mySessionBean for managed bean myViewBean                                com.sun.faces.mgbean.ManagedBeanCreationException: Unable to set property mySessionBean for managed bean myViewBean

    at com.sun.faces.mgbean.ManagedBeanBuilder$BakedBeanProperty.set(Unknown Source)

    at com.sun.faces.mgbean.ManagedBeanBuilder.buildBean(Unknown Source)

    at com.sun.faces.mgbean.BeanBuilder.build(Unknown Source)

    at com.sun.faces.mgbean.BeanManager.createAndPush(Unknown Source)

    at com.sun.faces.mgbean.BeanManager.create(Unknown Source)

    at com.sun.faces.el.ManagedBeanELResolver.resolveBean(Unknown Source)

    at com.sun.faces.el.ManagedBeanELResolver.getValue(Unknown Source)

    at com.sun.faces.el.DemuxCompositeELResolver._getValue(Unknown Source)

    at com.sun.faces.el.DemuxCompositeELResolver.getValue(Unknown Source)

    at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44)

    at org.jboss.el.parser.AstValue.getTarget(AstValue.java:34)

    at org.jboss.el.parser.AstValue.invoke(AstValue.java:95)

    at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)

    at com.sun.faces.facelets.el.TagMethodExpression.invoke(Unknown Source)

    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(Unknown Source)

    at com.sun.faces.application.ActionListenerImpl.processAction(Unknown Source)

    at org.primefaces.application.DialogActionListener.processAction(DialogActionListener.java:45)

    at javax.faces.component.UIViewAction.broadcast(Unknown Source)

    at javax.faces.component.UIViewRoot.broadcastEvents(Unknown Source)

    at javax.faces.component.UIViewRoot.processApplication(Unknown Source)

    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(Unknown Source)

    at com.sun.faces.lifecycle.Phase.doPhase(Unknown Source)

    at com.sun.faces.lifecycle.LifecycleImpl.execute(Unknown Source)

    at javax.faces.webapp.FacesServlet.service(Unknown Source)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1230)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:779)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)

    at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:136)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:97)

    at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:100)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.PostprocessorFilter.doFilter(PostprocessorFilter.java:38)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.ContainerBasedFilter.doFilter(ContainerBasedFilter.java:218)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.PreprocessorFilter.doFilter(PreprocessorFilter.java:91)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.SecurityPluginFilter.doFilter(SecurityPluginFilter.java:202)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.ThreadLocalCleanupFilter.doFilter(ThreadLocalCleanupFilter.java:50)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at gov.myapp.web.filter.CoordinatorSecurityFilter.doFilter(CoordinatorSecurityFilter.java:150)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.dataserve.common.CompatibleFilter.doFilter(CompatibleFilter.java:53)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:964)

    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1104)

    at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3901)

    at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304)

    at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:981)

    at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1662)

    at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:200)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:463)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:530)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:316)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:287)

    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)

    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)

    at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175)

    at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)

    at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)

    at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)

    at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)

    at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)

    at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)

    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1865)

Caused by: java.lang.NullPointerException

    at com.sun.faces.el.ELUtils.coerce(Unknown Source)

    at com.sun.faces.mgbean.BeanBuilder$Expression.evaluate(Unknown Source)

    ... 75 more



[10/25/18 18:19:20:341 AST] 00000243 PrimeExceptio E   <Null Message>

                                 java.lang.NullPointerException

    at com.sun.faces.el.ELUtils.coerce(Unknown Source)

    at com.sun.faces.mgbean.BeanBuilder$Expression.evaluate(Unknown Source)

    at com.sun.faces.mgbean.ManagedBeanBuilder$BakedBeanProperty.set(Unknown Source)

    at com.sun.faces.mgbean.ManagedBeanBuilder.buildBean(Unknown Source)

    at com.sun.faces.mgbean.BeanBuilder.build(Unknown Source)

    at com.sun.faces.mgbean.BeanManager.createAndPush(Unknown Source)

    at com.sun.faces.mgbean.BeanManager.create(Unknown Source)

    at com.sun.faces.el.ManagedBeanELResolver.resolveBean(Unknown Source)

    at com.sun.faces.el.ManagedBeanELResolver.getValue(Unknown Source)

    at com.sun.faces.el.DemuxCompositeELResolver._getValue(Unknown Source)

    at com.sun.faces.el.DemuxCompositeELResolver.getValue(Unknown Source)

    at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44)

    at org.jboss.el.parser.AstValue.getTarget(AstValue.java:34)

    at org.jboss.el.parser.AstValue.invoke(AstValue.java:95)

    at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)

    at com.sun.faces.facelets.el.TagMethodExpression.invoke(Unknown Source)

    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(Unknown Source)

    at com.sun.faces.application.ActionListenerImpl.processAction(Unknown Source)

    at org.primefaces.application.DialogActionListener.processAction(DialogActionListener.java:45)

    at javax.faces.component.UIViewAction.broadcast(Unknown Source)

    at javax.faces.component.UIViewRoot.broadcastEvents(Unknown Source)

    at javax.faces.component.UIViewRoot.processApplication(Unknown Source)

    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(Unknown Source)

    at com.sun.faces.lifecycle.Phase.doPhase(Unknown Source)

    at com.sun.faces.lifecycle.LifecycleImpl.execute(Unknown Source)

    at javax.faces.webapp.FacesServlet.service(Unknown Source)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1230)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:779)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)

    at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:136)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:97)

    at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:100)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.PostprocessorFilter.doFilter(PostprocessorFilter.java:38)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.ContainerBasedFilter.doFilter(ContainerBasedFilter.java:218)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.PreprocessorFilter.doFilter(PreprocessorFilter.java:91)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.SecurityPluginFilter.doFilter(SecurityPluginFilter.java:202)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.ThreadLocalCleanupFilter.doFilter(ThreadLocalCleanupFilter.java:50)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at gov.myapp.web.filter.CoordinatorSecurityFilter.doFilter(CoordinatorSecurityFilter.java:150)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.dataserve.common.CompatibleFilter.doFilter(CompatibleFilter.java:53)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:964)

    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1104)

    at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3901)

    at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304)

    at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:981)

    at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1662)

    at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:200)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:463)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:530)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:316)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:287)

    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)

    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)

    at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175)

    at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)

    at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)

    at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)

    at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)

    at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)

    at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)

    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1865)


i want to know if this is a bug or configuration error or it's normal due to session expire ?



please advise, thanks.






jsf nullpointerexception el







share|improve this question
























  • You know there are newer EL versions do you?
    – Kukeltje
    Nov 8 at 10:47










  • @Kukeltje,so is it an EL issue ? the thing is that i am working on old production system and upgrade is not really easy option for me, but if i have to i will
    – Mahmoud Saleh
    Nov 8 at 10:57










  • i have a limitation that i am working on Java 6 and java upgrade is not an option
    – Mahmoud Saleh
    Nov 8 at 10:58












  • No not specifically EL, but I noticed th old vesion number. If it happens occasionally, there is a chance that for one reason or another the bean to be injected cannot be created (error in constructor or something)
    – Kukeltje
    Nov 8 at 11:20






  • 1




    Doesn't websphere deliver its' own EL implementation? I remember we had plenty of sporadic [Nullpointer]Exceptions in old EL implementations in the past.
    – Selaron
    Nov 8 at 11:33

















up vote
0
down vote

favorite












i am using javax.faces-2.2.9.jar on websphere 8.5
on cluster environment, and in my web.xml i have the <distributable /> tag and also the ClientSideSecretKey :



<env-entry>

        <env-entry-name>jsf/ClientSideSecretKey</env-entry-name> 

        <env-entry-type>java.lang.String</env-entry-type>

        <env-entry-value>somekeyhere</env-entry-value>

    </env-entry>


i am using jboss-el-2.0.0.GA.jar :



<context-param>     

      <param-name>com.sun.faces.expressionFactory</param-name>

      <param-value>org.jboss.el.ExpressionFactoryImpl</param-value>   

    </context-param>


1- my session bean :



import javax.faces.bean.ManagedBean;

import javax.faces.bean.SessionScoped;



@ManagedBean(name = "mySessionBean")

@SessionScoped

public class UserBean {



}


2- my view bean : 



@ManagedBean(name = "myViewBean")

@ViewScoped

public class MyViewBean {



    @ManagedProperty(value = "#{mySessionBean}")

    private MySessionBean mySessionBean;



}


my application works fine most of the time, but sometimes i see in the log file the following exception which i don't know the reason for it:



Unable to set property mySessionBean for managed bean myViewBean                                com.sun.faces.mgbean.ManagedBeanCreationException: Unable to set property mySessionBean for managed bean myViewBean

    at com.sun.faces.mgbean.ManagedBeanBuilder$BakedBeanProperty.set(Unknown Source)

    at com.sun.faces.mgbean.ManagedBeanBuilder.buildBean(Unknown Source)

    at com.sun.faces.mgbean.BeanBuilder.build(Unknown Source)

    at com.sun.faces.mgbean.BeanManager.createAndPush(Unknown Source)

    at com.sun.faces.mgbean.BeanManager.create(Unknown Source)

    at com.sun.faces.el.ManagedBeanELResolver.resolveBean(Unknown Source)

    at com.sun.faces.el.ManagedBeanELResolver.getValue(Unknown Source)

    at com.sun.faces.el.DemuxCompositeELResolver._getValue(Unknown Source)

    at com.sun.faces.el.DemuxCompositeELResolver.getValue(Unknown Source)

    at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44)

    at org.jboss.el.parser.AstValue.getTarget(AstValue.java:34)

    at org.jboss.el.parser.AstValue.invoke(AstValue.java:95)

    at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)

    at com.sun.faces.facelets.el.TagMethodExpression.invoke(Unknown Source)

    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(Unknown Source)

    at com.sun.faces.application.ActionListenerImpl.processAction(Unknown Source)

    at org.primefaces.application.DialogActionListener.processAction(DialogActionListener.java:45)

    at javax.faces.component.UIViewAction.broadcast(Unknown Source)

    at javax.faces.component.UIViewRoot.broadcastEvents(Unknown Source)

    at javax.faces.component.UIViewRoot.processApplication(Unknown Source)

    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(Unknown Source)

    at com.sun.faces.lifecycle.Phase.doPhase(Unknown Source)

    at com.sun.faces.lifecycle.LifecycleImpl.execute(Unknown Source)

    at javax.faces.webapp.FacesServlet.service(Unknown Source)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1230)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:779)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)

    at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:136)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:97)

    at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:100)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.PostprocessorFilter.doFilter(PostprocessorFilter.java:38)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.ContainerBasedFilter.doFilter(ContainerBasedFilter.java:218)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.PreprocessorFilter.doFilter(PreprocessorFilter.java:91)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.SecurityPluginFilter.doFilter(SecurityPluginFilter.java:202)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.ThreadLocalCleanupFilter.doFilter(ThreadLocalCleanupFilter.java:50)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at gov.myapp.web.filter.CoordinatorSecurityFilter.doFilter(CoordinatorSecurityFilter.java:150)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.dataserve.common.CompatibleFilter.doFilter(CompatibleFilter.java:53)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:964)

    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1104)

    at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3901)

    at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304)

    at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:981)

    at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1662)

    at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:200)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:463)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:530)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:316)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:287)

    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)

    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)

    at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175)

    at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)

    at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)

    at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)

    at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)

    at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)

    at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)

    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1865)

Caused by: java.lang.NullPointerException

    at com.sun.faces.el.ELUtils.coerce(Unknown Source)

    at com.sun.faces.mgbean.BeanBuilder$Expression.evaluate(Unknown Source)

    ... 75 more



[10/25/18 18:19:20:341 AST] 00000243 PrimeExceptio E   <Null Message>

                                 java.lang.NullPointerException

    at com.sun.faces.el.ELUtils.coerce(Unknown Source)

    at com.sun.faces.mgbean.BeanBuilder$Expression.evaluate(Unknown Source)

    at com.sun.faces.mgbean.ManagedBeanBuilder$BakedBeanProperty.set(Unknown Source)

    at com.sun.faces.mgbean.ManagedBeanBuilder.buildBean(Unknown Source)

    at com.sun.faces.mgbean.BeanBuilder.build(Unknown Source)

    at com.sun.faces.mgbean.BeanManager.createAndPush(Unknown Source)

    at com.sun.faces.mgbean.BeanManager.create(Unknown Source)

    at com.sun.faces.el.ManagedBeanELResolver.resolveBean(Unknown Source)

    at com.sun.faces.el.ManagedBeanELResolver.getValue(Unknown Source)

    at com.sun.faces.el.DemuxCompositeELResolver._getValue(Unknown Source)

    at com.sun.faces.el.DemuxCompositeELResolver.getValue(Unknown Source)

    at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44)

    at org.jboss.el.parser.AstValue.getTarget(AstValue.java:34)

    at org.jboss.el.parser.AstValue.invoke(AstValue.java:95)

    at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)

    at com.sun.faces.facelets.el.TagMethodExpression.invoke(Unknown Source)

    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(Unknown Source)

    at com.sun.faces.application.ActionListenerImpl.processAction(Unknown Source)

    at org.primefaces.application.DialogActionListener.processAction(DialogActionListener.java:45)

    at javax.faces.component.UIViewAction.broadcast(Unknown Source)

    at javax.faces.component.UIViewRoot.broadcastEvents(Unknown Source)

    at javax.faces.component.UIViewRoot.processApplication(Unknown Source)

    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(Unknown Source)

    at com.sun.faces.lifecycle.Phase.doPhase(Unknown Source)

    at com.sun.faces.lifecycle.LifecycleImpl.execute(Unknown Source)

    at javax.faces.webapp.FacesServlet.service(Unknown Source)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1230)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:779)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)

    at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:136)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:97)

    at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:100)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.PostprocessorFilter.doFilter(PostprocessorFilter.java:38)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.ContainerBasedFilter.doFilter(ContainerBasedFilter.java:218)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.PreprocessorFilter.doFilter(PreprocessorFilter.java:91)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.SecurityPluginFilter.doFilter(SecurityPluginFilter.java:202)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.ThreadLocalCleanupFilter.doFilter(ThreadLocalCleanupFilter.java:50)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at gov.myapp.web.filter.CoordinatorSecurityFilter.doFilter(CoordinatorSecurityFilter.java:150)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.dataserve.common.CompatibleFilter.doFilter(CompatibleFilter.java:53)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:964)

    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1104)

    at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3901)

    at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304)

    at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:981)

    at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1662)

    at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:200)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:463)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:530)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:316)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:287)

    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)

    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)

    at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175)

    at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)

    at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)

    at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)

    at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)

    at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)

    at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)

    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1865)


i want to know if this is a bug or configuration error or it's normal due to session expire ?



please advise, thanks.






jsf nullpointerexception el







share|improve this question
























  • You know there are newer EL versions do you?
    – Kukeltje
    Nov 8 at 10:47










  • @Kukeltje,so is it an EL issue ? the thing is that i am working on old production system and upgrade is not really easy option for me, but if i have to i will
    – Mahmoud Saleh
    Nov 8 at 10:57










  • i have a limitation that i am working on Java 6 and java upgrade is not an option
    – Mahmoud Saleh
    Nov 8 at 10:58












  • No not specifically EL, but I noticed th old vesion number. If it happens occasionally, there is a chance that for one reason or another the bean to be injected cannot be created (error in constructor or something)
    – Kukeltje
    Nov 8 at 11:20






  • 1




    Doesn't websphere deliver its' own EL implementation? I remember we had plenty of sporadic [Nullpointer]Exceptions in old EL implementations in the past.
    – Selaron
    Nov 8 at 11:33















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down vote

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i am using javax.faces-2.2.9.jar on websphere 8.5
on cluster environment, and in my web.xml i have the <distributable /> tag and also the ClientSideSecretKey :



<env-entry>

        <env-entry-name>jsf/ClientSideSecretKey</env-entry-name> 

        <env-entry-type>java.lang.String</env-entry-type>

        <env-entry-value>somekeyhere</env-entry-value>

    </env-entry>


i am using jboss-el-2.0.0.GA.jar :



<context-param>     

      <param-name>com.sun.faces.expressionFactory</param-name>

      <param-value>org.jboss.el.ExpressionFactoryImpl</param-value>   

    </context-param>


1- my session bean :



import javax.faces.bean.ManagedBean;

import javax.faces.bean.SessionScoped;



@ManagedBean(name = "mySessionBean")

@SessionScoped

public class UserBean {



}


2- my view bean : 



@ManagedBean(name = "myViewBean")

@ViewScoped

public class MyViewBean {



    @ManagedProperty(value = "#{mySessionBean}")

    private MySessionBean mySessionBean;



}


my application works fine most of the time, but sometimes i see in the log file the following exception which i don't know the reason for it:



Unable to set property mySessionBean for managed bean myViewBean                                com.sun.faces.mgbean.ManagedBeanCreationException: Unable to set property mySessionBean for managed bean myViewBean

    at com.sun.faces.mgbean.ManagedBeanBuilder$BakedBeanProperty.set(Unknown Source)

    at com.sun.faces.mgbean.ManagedBeanBuilder.buildBean(Unknown Source)

    at com.sun.faces.mgbean.BeanBuilder.build(Unknown Source)

    at com.sun.faces.mgbean.BeanManager.createAndPush(Unknown Source)

    at com.sun.faces.mgbean.BeanManager.create(Unknown Source)

    at com.sun.faces.el.ManagedBeanELResolver.resolveBean(Unknown Source)

    at com.sun.faces.el.ManagedBeanELResolver.getValue(Unknown Source)

    at com.sun.faces.el.DemuxCompositeELResolver._getValue(Unknown Source)

    at com.sun.faces.el.DemuxCompositeELResolver.getValue(Unknown Source)

    at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44)

    at org.jboss.el.parser.AstValue.getTarget(AstValue.java:34)

    at org.jboss.el.parser.AstValue.invoke(AstValue.java:95)

    at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)

    at com.sun.faces.facelets.el.TagMethodExpression.invoke(Unknown Source)

    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(Unknown Source)

    at com.sun.faces.application.ActionListenerImpl.processAction(Unknown Source)

    at org.primefaces.application.DialogActionListener.processAction(DialogActionListener.java:45)

    at javax.faces.component.UIViewAction.broadcast(Unknown Source)

    at javax.faces.component.UIViewRoot.broadcastEvents(Unknown Source)

    at javax.faces.component.UIViewRoot.processApplication(Unknown Source)

    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(Unknown Source)

    at com.sun.faces.lifecycle.Phase.doPhase(Unknown Source)

    at com.sun.faces.lifecycle.LifecycleImpl.execute(Unknown Source)

    at javax.faces.webapp.FacesServlet.service(Unknown Source)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1230)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:779)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)

    at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:136)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:97)

    at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:100)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.PostprocessorFilter.doFilter(PostprocessorFilter.java:38)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.ContainerBasedFilter.doFilter(ContainerBasedFilter.java:218)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.PreprocessorFilter.doFilter(PreprocessorFilter.java:91)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.SecurityPluginFilter.doFilter(SecurityPluginFilter.java:202)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.ThreadLocalCleanupFilter.doFilter(ThreadLocalCleanupFilter.java:50)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at gov.myapp.web.filter.CoordinatorSecurityFilter.doFilter(CoordinatorSecurityFilter.java:150)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.dataserve.common.CompatibleFilter.doFilter(CompatibleFilter.java:53)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:964)

    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1104)

    at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3901)

    at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304)

    at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:981)

    at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1662)

    at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:200)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:463)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:530)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:316)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:287)

    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)

    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)

    at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175)

    at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)

    at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)

    at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)

    at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)

    at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)

    at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)

    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1865)

Caused by: java.lang.NullPointerException

    at com.sun.faces.el.ELUtils.coerce(Unknown Source)

    at com.sun.faces.mgbean.BeanBuilder$Expression.evaluate(Unknown Source)

    ... 75 more



[10/25/18 18:19:20:341 AST] 00000243 PrimeExceptio E   <Null Message>

                                 java.lang.NullPointerException

    at com.sun.faces.el.ELUtils.coerce(Unknown Source)

    at com.sun.faces.mgbean.BeanBuilder$Expression.evaluate(Unknown Source)

    at com.sun.faces.mgbean.ManagedBeanBuilder$BakedBeanProperty.set(Unknown Source)

    at com.sun.faces.mgbean.ManagedBeanBuilder.buildBean(Unknown Source)

    at com.sun.faces.mgbean.BeanBuilder.build(Unknown Source)

    at com.sun.faces.mgbean.BeanManager.createAndPush(Unknown Source)

    at com.sun.faces.mgbean.BeanManager.create(Unknown Source)

    at com.sun.faces.el.ManagedBeanELResolver.resolveBean(Unknown Source)

    at com.sun.faces.el.ManagedBeanELResolver.getValue(Unknown Source)

    at com.sun.faces.el.DemuxCompositeELResolver._getValue(Unknown Source)

    at com.sun.faces.el.DemuxCompositeELResolver.getValue(Unknown Source)

    at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44)

    at org.jboss.el.parser.AstValue.getTarget(AstValue.java:34)

    at org.jboss.el.parser.AstValue.invoke(AstValue.java:95)

    at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)

    at com.sun.faces.facelets.el.TagMethodExpression.invoke(Unknown Source)

    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(Unknown Source)

    at com.sun.faces.application.ActionListenerImpl.processAction(Unknown Source)

    at org.primefaces.application.DialogActionListener.processAction(DialogActionListener.java:45)

    at javax.faces.component.UIViewAction.broadcast(Unknown Source)

    at javax.faces.component.UIViewRoot.broadcastEvents(Unknown Source)

    at javax.faces.component.UIViewRoot.processApplication(Unknown Source)

    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(Unknown Source)

    at com.sun.faces.lifecycle.Phase.doPhase(Unknown Source)

    at com.sun.faces.lifecycle.LifecycleImpl.execute(Unknown Source)

    at javax.faces.webapp.FacesServlet.service(Unknown Source)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1230)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:779)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)

    at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:136)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:97)

    at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:100)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.PostprocessorFilter.doFilter(PostprocessorFilter.java:38)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.ContainerBasedFilter.doFilter(ContainerBasedFilter.java:218)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.PreprocessorFilter.doFilter(PreprocessorFilter.java:91)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.SecurityPluginFilter.doFilter(SecurityPluginFilter.java:202)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.ThreadLocalCleanupFilter.doFilter(ThreadLocalCleanupFilter.java:50)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at gov.myapp.web.filter.CoordinatorSecurityFilter.doFilter(CoordinatorSecurityFilter.java:150)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.dataserve.common.CompatibleFilter.doFilter(CompatibleFilter.java:53)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:964)

    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1104)

    at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3901)

    at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304)

    at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:981)

    at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1662)

    at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:200)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:463)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:530)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:316)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:287)

    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)

    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)

    at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175)

    at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)

    at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)

    at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)

    at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)

    at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)

    at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)

    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1865)


i want to know if this is a bug or configuration error or it's normal due to session expire ?



please advise, thanks.






jsf nullpointerexception el







share|improve this question















i am using javax.faces-2.2.9.jar on websphere 8.5
on cluster environment, and in my web.xml i have the <distributable /> tag and also the ClientSideSecretKey :



<env-entry>

        <env-entry-name>jsf/ClientSideSecretKey</env-entry-name> 

        <env-entry-type>java.lang.String</env-entry-type>

        <env-entry-value>somekeyhere</env-entry-value>

    </env-entry>


i am using jboss-el-2.0.0.GA.jar :



<context-param>     

      <param-name>com.sun.faces.expressionFactory</param-name>

      <param-value>org.jboss.el.ExpressionFactoryImpl</param-value>   

    </context-param>


1- my session bean :



import javax.faces.bean.ManagedBean;

import javax.faces.bean.SessionScoped;



@ManagedBean(name = "mySessionBean")

@SessionScoped

public class UserBean {



}


2- my view bean : 



@ManagedBean(name = "myViewBean")

@ViewScoped

public class MyViewBean {



    @ManagedProperty(value = "#{mySessionBean}")

    private MySessionBean mySessionBean;



}


my application works fine most of the time, but sometimes i see in the log file the following exception which i don't know the reason for it:



Unable to set property mySessionBean for managed bean myViewBean                                com.sun.faces.mgbean.ManagedBeanCreationException: Unable to set property mySessionBean for managed bean myViewBean

    at com.sun.faces.mgbean.ManagedBeanBuilder$BakedBeanProperty.set(Unknown Source)

    at com.sun.faces.mgbean.ManagedBeanBuilder.buildBean(Unknown Source)

    at com.sun.faces.mgbean.BeanBuilder.build(Unknown Source)

    at com.sun.faces.mgbean.BeanManager.createAndPush(Unknown Source)

    at com.sun.faces.mgbean.BeanManager.create(Unknown Source)

    at com.sun.faces.el.ManagedBeanELResolver.resolveBean(Unknown Source)

    at com.sun.faces.el.ManagedBeanELResolver.getValue(Unknown Source)

    at com.sun.faces.el.DemuxCompositeELResolver._getValue(Unknown Source)

    at com.sun.faces.el.DemuxCompositeELResolver.getValue(Unknown Source)

    at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44)

    at org.jboss.el.parser.AstValue.getTarget(AstValue.java:34)

    at org.jboss.el.parser.AstValue.invoke(AstValue.java:95)

    at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)

    at com.sun.faces.facelets.el.TagMethodExpression.invoke(Unknown Source)

    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(Unknown Source)

    at com.sun.faces.application.ActionListenerImpl.processAction(Unknown Source)

    at org.primefaces.application.DialogActionListener.processAction(DialogActionListener.java:45)

    at javax.faces.component.UIViewAction.broadcast(Unknown Source)

    at javax.faces.component.UIViewRoot.broadcastEvents(Unknown Source)

    at javax.faces.component.UIViewRoot.processApplication(Unknown Source)

    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(Unknown Source)

    at com.sun.faces.lifecycle.Phase.doPhase(Unknown Source)

    at com.sun.faces.lifecycle.LifecycleImpl.execute(Unknown Source)

    at javax.faces.webapp.FacesServlet.service(Unknown Source)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1230)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:779)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)

    at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:136)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:97)

    at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:100)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.PostprocessorFilter.doFilter(PostprocessorFilter.java:38)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.ContainerBasedFilter.doFilter(ContainerBasedFilter.java:218)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.PreprocessorFilter.doFilter(PreprocessorFilter.java:91)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.SecurityPluginFilter.doFilter(SecurityPluginFilter.java:202)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.ThreadLocalCleanupFilter.doFilter(ThreadLocalCleanupFilter.java:50)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at gov.myapp.web.filter.CoordinatorSecurityFilter.doFilter(CoordinatorSecurityFilter.java:150)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.dataserve.common.CompatibleFilter.doFilter(CompatibleFilter.java:53)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:964)

    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1104)

    at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3901)

    at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304)

    at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:981)

    at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1662)

    at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:200)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:463)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:530)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:316)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:287)

    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)

    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)

    at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175)

    at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)

    at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)

    at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)

    at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)

    at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)

    at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)

    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1865)

Caused by: java.lang.NullPointerException

    at com.sun.faces.el.ELUtils.coerce(Unknown Source)

    at com.sun.faces.mgbean.BeanBuilder$Expression.evaluate(Unknown Source)

    ... 75 more



[10/25/18 18:19:20:341 AST] 00000243 PrimeExceptio E   <Null Message>

                                 java.lang.NullPointerException

    at com.sun.faces.el.ELUtils.coerce(Unknown Source)

    at com.sun.faces.mgbean.BeanBuilder$Expression.evaluate(Unknown Source)

    at com.sun.faces.mgbean.ManagedBeanBuilder$BakedBeanProperty.set(Unknown Source)

    at com.sun.faces.mgbean.ManagedBeanBuilder.buildBean(Unknown Source)

    at com.sun.faces.mgbean.BeanBuilder.build(Unknown Source)

    at com.sun.faces.mgbean.BeanManager.createAndPush(Unknown Source)

    at com.sun.faces.mgbean.BeanManager.create(Unknown Source)

    at com.sun.faces.el.ManagedBeanELResolver.resolveBean(Unknown Source)

    at com.sun.faces.el.ManagedBeanELResolver.getValue(Unknown Source)

    at com.sun.faces.el.DemuxCompositeELResolver._getValue(Unknown Source)

    at com.sun.faces.el.DemuxCompositeELResolver.getValue(Unknown Source)

    at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44)

    at org.jboss.el.parser.AstValue.getTarget(AstValue.java:34)

    at org.jboss.el.parser.AstValue.invoke(AstValue.java:95)

    at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)

    at com.sun.faces.facelets.el.TagMethodExpression.invoke(Unknown Source)

    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(Unknown Source)

    at com.sun.faces.application.ActionListenerImpl.processAction(Unknown Source)

    at org.primefaces.application.DialogActionListener.processAction(DialogActionListener.java:45)

    at javax.faces.component.UIViewAction.broadcast(Unknown Source)

    at javax.faces.component.UIViewRoot.broadcastEvents(Unknown Source)

    at javax.faces.component.UIViewRoot.processApplication(Unknown Source)

    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(Unknown Source)

    at com.sun.faces.lifecycle.Phase.doPhase(Unknown Source)

    at com.sun.faces.lifecycle.LifecycleImpl.execute(Unknown Source)

    at javax.faces.webapp.FacesServlet.service(Unknown Source)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1230)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:779)

    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)

    at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:136)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:97)

    at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:100)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.PostprocessorFilter.doFilter(PostprocessorFilter.java:38)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.ContainerBasedFilter.doFilter(ContainerBasedFilter.java:218)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.PreprocessorFilter.doFilter(PreprocessorFilter.java:91)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.SecurityPluginFilter.doFilter(SecurityPluginFilter.java:202)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.filenet.ae.toolkit.server.servlet.filter.ThreadLocalCleanupFilter.doFilter(ThreadLocalCleanupFilter.java:50)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at gov.myapp.web.filter.CoordinatorSecurityFilter.doFilter(CoordinatorSecurityFilter.java:150)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.dataserve.common.CompatibleFilter.doFilter(CompatibleFilter.java:53)

    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)

    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)

    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:964)

    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1104)

    at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3901)

    at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304)

    at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:981)

    at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1662)

    at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:200)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:463)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:530)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:316)

    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:287)

    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)

    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)

    at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175)

    at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)

    at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)

    at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)

    at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)

    at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)

    at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)

    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1865)


i want to know if this is a bug or configuration error or it's normal due to session expire ?



please advise, thanks.






jsf nullpointerexception el




jsf nullpointerexception el






share|improve this question















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edited Nov 8 at 11:02









BalusC

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833k29330913178










asked Nov 8 at 10:41









Mahmoud Saleh

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  • You know there are newer EL versions do you?
    – Kukeltje
    Nov 8 at 10:47










  • @Kukeltje,so is it an EL issue ? the thing is that i am working on old production system and upgrade is not really easy option for me, but if i have to i will
    – Mahmoud Saleh
    Nov 8 at 10:57










  • i have a limitation that i am working on Java 6 and java upgrade is not an option
    – Mahmoud Saleh
    Nov 8 at 10:58












  • No not specifically EL, but I noticed th old vesion number. If it happens occasionally, there is a chance that for one reason or another the bean to be injected cannot be created (error in constructor or something)
    – Kukeltje
    Nov 8 at 11:20






  • 1




    Doesn't websphere deliver its' own EL implementation? I remember we had plenty of sporadic [Nullpointer]Exceptions in old EL implementations in the past.
    – Selaron
    Nov 8 at 11:33




















  • You know there are newer EL versions do you?
    – Kukeltje
    Nov 8 at 10:47










  • @Kukeltje,so is it an EL issue ? the thing is that i am working on old production system and upgrade is not really easy option for me, but if i have to i will
    – Mahmoud Saleh
    Nov 8 at 10:57










  • i have a limitation that i am working on Java 6 and java upgrade is not an option
    – Mahmoud Saleh
    Nov 8 at 10:58












  • No not specifically EL, but I noticed th old vesion number. If it happens occasionally, there is a chance that for one reason or another the bean to be injected cannot be created (error in constructor or something)
    – Kukeltje
    Nov 8 at 11:20






  • 1




    Doesn't websphere deliver its' own EL implementation? I remember we had plenty of sporadic [Nullpointer]Exceptions in old EL implementations in the past.
    – Selaron
    Nov 8 at 11:33


















You know there are newer EL versions do you?
– Kukeltje
Nov 8 at 10:47




You know there are newer EL versions do you?
– Kukeltje
Nov 8 at 10:47












@Kukeltje,so is it an EL issue ? the thing is that i am working on old production system and upgrade is not really easy option for me, but if i have to i will
– Mahmoud Saleh
Nov 8 at 10:57




@Kukeltje,so is it an EL issue ? the thing is that i am working on old production system and upgrade is not really easy option for me, but if i have to i will
– Mahmoud Saleh
Nov 8 at 10:57












i have a limitation that i am working on Java 6 and java upgrade is not an option
– Mahmoud Saleh
Nov 8 at 10:58






i have a limitation that i am working on Java 6 and java upgrade is not an option
– Mahmoud Saleh
Nov 8 at 10:58














No not specifically EL, but I noticed th old vesion number. If it happens occasionally, there is a chance that for one reason or another the bean to be injected cannot be created (error in constructor or something)
– Kukeltje
Nov 8 at 11:20




No not specifically EL, but I noticed th old vesion number. If it happens occasionally, there is a chance that for one reason or another the bean to be injected cannot be created (error in constructor or something)
– Kukeltje
Nov 8 at 11:20




1




1




Doesn't websphere deliver its' own EL implementation? I remember we had plenty of sporadic [Nullpointer]Exceptions in old EL implementations in the past.
– Selaron
Nov 8 at 11:33






Doesn't websphere deliver its' own EL implementation? I remember we had plenty of sporadic [Nullpointer]Exceptions in old EL implementations in the past.
– Selaron
Nov 8 at 11:33



















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