permaculture playing cards*
The moose likes JSF and the fly likes Error displaying message on JSF Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login


Win a copy of Murach's Java Servlets and JSP this week in the Servlets forum!
JavaRanch » Java Forums » Java » JSF
Bookmark "Error displaying message on JSF" Watch "Error displaying message on JSF" New topic
Author

Error displaying message on JSF

Mary Koh
Ranch Hand

Joined: Feb 19, 2012
Posts: 33
Hi,

I am trying to display messages but the getFacesContext() hits null. I am unsure why is this so.



[4/24/12 12:45:58:861 SGT] 00000026 SystemOut O 1.0 getFacesContext():null
[4/24/12 12:45:58:861 SGT] 00000026 jsf E com.sun.faces.lifecycle.InvokeApplicationPhase execute #{pc_Login.doLogin_loginAction}: javax.faces.el.EvaluationException: java.lang.NullPointerException
javax.faces.FacesException: #{pc_Login.doLogin_loginAction}: javax.faces.el.EvaluationException: java.lang.NullPointerException
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:79)
at javax.faces.component.UICommand.broadcast(UICommand.java:312)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:302)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:419)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:239)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:91)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1146)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:593)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:535)
at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:90)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:764)
at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1478)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:133)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:450)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:508)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:296)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:270)
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:165)
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:136)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:196)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:751)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:881)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1551)
Caused by: javax.faces.el.EvaluationException: java.lang.NullPointerException
at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:131)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:73)
... 28 more
Caused by: java.lang.NullPointerException
at pagecode.PageCodeBase.showCommonMessage(PageCodeBase.java:102)
at pagecode.PageCodeBase.showCommonMessage_ByKey(PageCodeBase.java:51)
at pagecode.Login.doLogin_loginAction(Login.java:117)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:618)
at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:127)
... 29 more

[4/24/12 12:45:58:867 SGT] 00000026 ServletWrappe E SRVE0068E: Uncaught exception thrown in one of the service methods of the servlet: Faces Servlet. Exception thrown : javax.servlet.ServletException: #{pc_Login.doLogin_loginAction}: javax.faces.el.EvaluationException: java.lang.NullPointerException
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:209)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1146)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:593)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:535)
at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:90)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:764)
at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1478)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:133)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:450)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:508)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:296)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:270)
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:165)
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:136)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:196)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:751)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:881)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1551)
---- Begin backtrace for Nested Throwables
javax.faces.FacesException: #{pc_Login.doLogin_loginAction}: javax.faces.el.EvaluationException: java.lang.NullPointerException
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:79)
at javax.faces.component.UICommand.broadcast(UICommand.java:312)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:302)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:419)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:239)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:91)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1146)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:593)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:535)
at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:90)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:764)
at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1478)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:133)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:450)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:508)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:296)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:270)
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:165)
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:136)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:196)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:751)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:881)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1551)
Caused by: javax.faces.el.EvaluationException: java.lang.NullPointerException
at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:131)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:73)
... 28 more
Caused by: java.lang.NullPointerException
at pagecode.PageCodeBase.showCommonMessage(PageCodeBase.java:102)
at pagecode.PageCodeBase.showCommonMessage_ByKey(PageCodeBase.java:51)
at pagecode.Login.doLogin_loginAction(Login.java:117)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:618)
at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:127)
... 29 more

[4/24/12 12:45:58:870 SGT] 00000026 WebApp E [Servlet Error]-[Faces Servlet]: javax.faces.FacesException: #{pc_Login.doLogin_loginAction}: javax.faces.el.EvaluationException: java.lang.NullPointerException
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:79)
at javax.faces.component.UICommand.broadcast(UICommand.java:312)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:302)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:419)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:239)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:91)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1146)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:593)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:535)
at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:90)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:764)
at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1478)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:133)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:450)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:508)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:296)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:270)
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:165)
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:136)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:196)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:751)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:881)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1551)
Caused by: javax.faces.el.EvaluationException: java.lang.NullPointerException
at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:131)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:73)
... 28 more
Caused by: java.lang.NullPointerException
at pagecode.PageCodeBase.showCommonMessage(PageCodeBase.java:102)
at pagecode.PageCodeBase.showCommonMessage_ByKey(PageCodeBase.java:51)
at pagecode.Login.doLogin_loginAction(Login.java:117)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:618)
at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:127)
... 29 more

Tim Holloway
Saloon Keeper

Joined: Jun 25, 2001
Posts: 15950
    
  19

FacesContext is not an enduring object. It is created and destroyed on each HTTP service request that is channeled to the FacesServlet (that is, the request is a JSF request). If you URL is non-JSF, such as a JSP or servlet URL, the request doesn't get routed to FacesServlet, no FacesContext is created and null is exactly what you'll get.

I could rant on at length about the perils of writing your own login processes, but I'll save that for another time.


Customer surveys are for companies who didn't pay proper attention to begin with.
Mary Koh
Ranch Hand

Joined: Feb 19, 2012
Posts: 33
Tim Holloway wrote:FacesContext is not an enduring object. It is created and destroyed on each HTTP service request that is channeled to the FacesServlet (that is, the request is a JSF request). If you URL is non-JSF, such as a JSP or servlet URL, the request doesn't get routed to FacesServlet, no FacesContext is created and null is exactly what you'll get.

I could rant on at length about the perils of writing your own login processes, but I'll save that for another time.


Thanks! Fixed it!
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: Error displaying message on JSF
 
Similar Threads
IceFaces 1.8 with websphere7
Unable to access EJB3.0 session bean
connection error when servers runs fine
Datasource lookup
java.lang.UnsupportedOperationException: Please implement