BUG: NPE with dynamic image streaming when using ViewScoped

UI Components for JSF
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KingdomHeart
Posts: 280
Joined: 25 Jun 2010, 01:18

09 Jan 2011, 06:26

I got exception when I try to do dynamic image streaming only with ViewScoped bean but not with RequestedScoped or SessionScoped bean

Code: Select all

<p:graphicImage value="#{CreateNetwork.image}" id="photo"/>

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   private StreamedContent image = null;
   @PostConstruct
   public void init(){
       try {     
            File file = new File("/Users/KingdomHeart/resources/scholar/network/1.jpg");
            if(file != null){
                image = new DefaultStreamedContent(new FileInputStream(file), "image/jpeg", "1.jpg");                
            }           
        } catch (FileNotFoundException ex) {
            logger.log(Level.SEVERE, null, ex);
        }
   }

   public StreamedContent getImage() {
       return image;
   }

   public void setImage(StreamedContent image) {
       this.image = image;
   }
If I have the above bean to be ViewScoped bean, then I wont see the image, and I got this error in my "server.log"

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Servlet.service() for servlet Faces Servlet threw exception. java.lang.NullPointerException
	at com.sun.faces.mgbean.BeanManager$ScopeManager$ViewScopeHandler.getFromScope(BeanManager.java:559)
	at com.sun.faces.mgbean.BeanManager$ScopeManager.getFromScope(BeanManager.java:473)
	at com.sun.faces.mgbean.BeanManager.getBeanFromScope(BeanManager.java:236)
	at com.sun.faces.el.ManagedBeanELResolver.resolveBean(ManagedBeanELResolver.java:189)
	at com.sun.faces.el.ManagedBeanELResolver.getValue(ManagedBeanELResolver.java:73)
	at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:175)
	at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:71)
	at com.sun.el.parser.AstIdentifier.getValue(AstIdentifier.java:99)
	at com.sun.el.parser.AstValue.getValue(AstValue.java:158)
	at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:219)
	at org.jboss.weld.el.WeldValueExpression.getValue(WeldValueExpression.java:71)
	at org.primefaces.application.DynamicContentStreamer.streamDynamicContent(DynamicContentStreamer.java:65)
	at org.primefaces.application.DynamicContentStreamer.beforePhase(DynamicContentStreamer.java:56)
	at com.sun.faces.lifecycle.Phase.handleBeforePhase(Phase.java:224)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:95)
	at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:107)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:308)
	at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:215)
	at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:79)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:277)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
	at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
	at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
	at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:325)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:226)
	at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
	at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
	at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
	at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
	at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
	at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
	at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
	at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
	at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
	at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
	at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
	at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
	at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
	at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
	at java.lang.Thread.run(Thread.java:680)
if I have this bean to be RequestScoped or SessionScoped bean, then I see the image, which is great but I also receive a error in my server.log as well

Code: Select all

Servlet.service() for servlet Faces Servlet threw exception
java.lang.NullPointerException
	at com.sun.faces.lifecycle.RestoreViewPhase.notifyAfter(RestoreViewPhase.java:288)
	at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:110)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:308)
	at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:215)
	at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:79)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:277)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
	at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
	at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
	at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:325)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:226)
	at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
	at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
	at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
	at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
	at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
	at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
	at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
	at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
	at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
	at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
	at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
	at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
	at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
	at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
	at java.lang.Thread.run(Thread.java:680)
Here is the bug report for it: http://code.google.com/p/primefaces/iss ... il?id=1614
Last edited by KingdomHeart on 12 Jan 2011, 13:37, edited 9 times in total.

Mojarra 2.1.10, Glassfish 3.1, Tomcat 7, Primeface 3.3.1
IE 6-8, FireFox 10-13
MAC OSX Lion, Windows XP, 7
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KingdomHeart
Posts: 280
Joined: 25 Jun 2010, 01:18

10 Jan 2011, 12:00

Just something that I notice that the above exception only load when I have "p:graphicImage". Just something I notice when I am debugging. Not sure if it is any help to you guys. Please help

Mojarra 2.1.10, Glassfish 3.1, Tomcat 7, Primeface 3.3.1
IE 6-8, FireFox 10-13
MAC OSX Lion, Windows XP, 7
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KingdomHeart
Posts: 280
Joined: 25 Jun 2010, 01:18

10 Jan 2011, 17:17

Please help! this seems to be a very trivial problem. Please! Any one faces similar problem or anyone have get dynamic image streaming working. Please help

Mojarra 2.1.10, Glassfish 3.1, Tomcat 7, Primeface 3.3.1
IE 6-8, FireFox 10-13
MAC OSX Lion, Windows XP, 7
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KingdomHeart
Posts: 280
Joined: 25 Jun 2010, 01:18

11 Jan 2011, 08:51

help please

Mojarra 2.1.10, Glassfish 3.1, Tomcat 7, Primeface 3.3.1
IE 6-8, FireFox 10-13
MAC OSX Lion, Windows XP, 7
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dmantil
Posts: 93
Joined: 14 Jul 2010, 22:30

12 Jan 2011, 04:10

Hi, I have dynamic image working and i can't see significant diferences with your code,
In fact, the only diference i saw it's i'm using the DefaultStreamedContent constructor with name parameter:

new DefaultStreamedContent( fis, doctype, 'nameimage.jpg' );
But I think it's not important because showcase works without it.

if you copy your entire bean code, maybe we can find the error...
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KingdomHeart
Posts: 280
Joined: 25 Jun 2010, 01:18

12 Jan 2011, 11:42

This is a bug. I change to SessionScoped bean and RequestScoped bean and it work, but ViewScoped Bean does not. I have file a bug for this http://code.google.com/p/primefaces/iss ... il?id=1614

@dmantil: Your code does not wok with ViewScoped, does it?

Mojarra 2.1.10, Glassfish 3.1, Tomcat 7, Primeface 3.3.1
IE 6-8, FireFox 10-13
MAC OSX Lion, Windows XP, 7
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vanjadardic
Posts: 55
Joined: 08 Sep 2010, 09:18
Location: Banja Luka, Bosnia and Herzegovina
Contact:
Contact vanjadardic

13 Jan 2011, 17:48

Here is how to solve that NPE when using RequestScoped or SessionScoped bean:
http://primefaces.prime.com.tr/forum/vi ... 666#p28745

;)
PrimeFaces version: whatever is the latest
Mojarra version: whatever is the latest
GlassFish & Tomcat version: whatever is the latest
Chrome & Firefox version: whatever is the latest
And a little bit of IE
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