[JAVAEETUTORIAL-238] NullPoint error in chapter 8.5 Composite Components example code. Created: 26/Aug/13  Updated: 26/Aug/13  Resolved: 26/Aug/13

Status: Closed
Project: javaeetutorial
Component/s: examples
Affects Version/s: 7.0.1
Fix Version/s: None

Type: Bug Priority: Major
Reporter: evil850209 Assignee: Kim Haase
Resolution: Won't Fix Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified
Environment:

Java EE 7
GlasshFish 4.0


Issue Links:
Duplicate
duplicates JAVASERVERFACES_SPEC_PUBLIC-1213 f:viewParam doesn't work when using x... Closed

 Description   

I am reading The Java EE 7 Tutorial from http://docs.oracle.com/javaee/7/tutorial/doc/jsf-facelets005.htm#GIQZR

After I typed the example code in the chapter 8.5 Composite Components in my IDE and run the example on GlassFish4.0, I got an error.

java.lang.NullPointerException
at java.util.concurrent.ConcurrentHashMap.putIfAbsent(ConcurrentHashMap.java:1078)
at com.sun.faces.util.Cache.get(Cache.java:116)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.getComponentMetadata(FaceletViewHandlingStrategy.java:237)
at com.sun.faces.application.ApplicationImpl.createComponent(ApplicationImpl.java:951)
at javax.faces.application.ApplicationWrapper.createComponent(ApplicationWrapper.java:648)

Then I check the older version of this tutorial, I found a difference in email.xhtml code. The namespace has been changed from Java EE 7. After I changed the namespace back to JavaEE 6 version, it works.

Java EE 7

xmlns:composite="http://xmlns.jcp.org/jsf/composite"

Java EE 6

xmlns:composite="http://java.sun.com/jsf/composite"



 Comments   
Comment by Ian Evans [ 26/Aug/13 ]

Duplicate of JAVASERVERFACES_SPEC_PUBLIC-1213.

Comment by Kim Haase [ 26/Aug/13 ]

I believe this is essentially a duplicate of https://java.net/jira/browse/JAVASERVERFACES-2868 (of which https://java.net/jira/browse/JAVASERVERFACES_SPEC_PUBLIC-1213 is also a duplicate, I believe). Several components do not work correctly with the new xmlns.jcp.org namespace at the first release of JSF 2.2. The fix for this problem will be in the next released version of JSF 2.2.x.

We document the namespaces the way they are supposed to work, rather than document the incorrect behavior. The facelets pages for the tutorial examples that use composite components (and a few other components) use the java.sun.com namespace so that the examples will run.

Generated at Mon Sep 26 02:11:37 UTC 2016 using JIRA 6.2.3#6260-sha1:63ef1d6dac3f4f4d7db4c1effd405ba38ccdc558.