[jboss-as7-dev] [Resteasy-developers] NPE at org.jboss.resteasy.logging.Logger.classInClasspath(Logger.java:62)

[Bill Burke]

Using Class.forName() is perhaps one of the biggest causes of CCEs and CLEs.


On 6/22/11 3:37 PM, David M. Lloyd wrote:
> It is perfectly valid to have a context class loader of "null" which is
> one value used by the JDK to mean the default system class loader.  You
> can never assume the TCCL is non-null.  It's another good reason to use
> Class.forName() instead of classLoader.loadClass().
>
> Thread.currentThread() will never be null.
>
> On 06/22/2011 02:30 PM, Bill Burke wrote:
>> Not sure how that NPE is possible.  Thread.currentThread() or
>> Thread.currentThread().getContextClassLoader() has to be NULL.  If AS7
>> is overriding ContextClassLoader to be NULL then thats pretty worrisome.
>>
>> On 6/22/11 2:28 PM, Juergen Zimmermann wrote:
>>> JBoss 7 (Jenkins build 1253) meanwhile works regarding the
>>> NoMessageBodyWriterFoundFailure.
>>>
>>> However, when I want to also use Seam REST, I'm getting a NPE at
>>> org.jboss.resteasy.logging.Logger.classInClasspath(Logger.java:62). Please
>>> see the stacktrace:
>>>
>>> 20:20:06,541 INFO  [org.jboss.weld] (MSC service thread 1-1) Processing CDI
>>> deployment: swe2.ear
>>> 20:20:06,566 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-1)
>>> MSC00001: Failed to start service
>>> jboss.deployment.unit."swe2.ear".POST_MODULE:
>>> org.jboss.msc.service.StartException in service
>>> jboss.deployment.unit."swe2.ear".POST_MODULE: Failed to process phase
>>> POST_MODULE of deployment "swe2.ear"
>>> 	at
>>> org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUn
>>> itPhaseService.java:121)
>>> 	at
>>> org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerI
>>> mpl.java:1738)
>>> 	at
>>> org.jboss.msc.service.ServiceControllerImpl$ClearTCCLTask.run(ServiceControl
>>> lerImpl.java:2325)
>>> 	at
>>> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.ja
>>> va:886) [:1.6.0_26]
>>> 	at
>>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:9
>>> 08) [:1.6.0_26]
>>> 	at java.lang.Thread.run(Thread.java:662) [:1.6.0_26]
>>> Caused by: java.lang.RuntimeException: Error instantiating class
>>> org.jboss.resteasy.cdi.ResteasyCdiExtension
>>> 	at
>>> org.jboss.weld.util.ServiceLoader.prepareInstance(ServiceLoader.java:282)
>>> 	at
>>> org.jboss.weld.util.ServiceLoader.loadService(ServiceLoader.java:238)
>>> 	at
>>> org.jboss.weld.util.ServiceLoader.loadServiceFile(ServiceLoader.java:194)
>>> 	at org.jboss.weld.util.ServiceLoader.reload(ServiceLoader.java:157)
>>> 	at
>>> org.jboss.weld.util.ServiceLoader.iterator(ServiceLoader.java:346)
>>> 	at
>>> org.jboss.as.weld.deployment.processors.WeldPortableExtensionProcessor.loadA
>>> ttachments(WeldPortableExtensionProcessor.java:84)
>>> 	at
>>> org.jboss.as.weld.deployment.processors.WeldPortableExtensionProcessor.deplo
>>> y(WeldPortableExtensionProcessor.java:78)
>>> 	at
>>> org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUn
>>> itPhaseService.java:115)
>>> 	... 5 more
>>> Caused by: java.lang.ExceptionInInitializerError
>>> 	at
>>> org.jboss.resteasy.cdi.ResteasyCdiExtension.<init>(ResteasyCdiExtension.java
>>> :44)
>>> 	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
>>> Method) [:1.6.0_26]
>>> 	at
>>> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAcces
>>> sorImpl.java:39) [:1.6.0_26]
>>> 	at
>>> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstruc
>>> torAccessorImpl.java:27) [:1.6.0_26]
>>> 	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
>>> [:1.6.0_26]
>>> 	at
>>> org.jboss.weld.util.ServiceLoader.prepareInstance(ServiceLoader.java:273)
>>> 	... 12 more
>>> Caused by: java.lang.NullPointerException
>>> 	at
>>> org.jboss.resteasy.logging.Logger.classInClasspath(Logger.java:62)
>>> 	at org.jboss.resteasy.logging.Logger.<clinit>(Logger.java:75)
>>> 	... 18 more
>>>
>>>
>>>
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>>
>
>

-- 
Bill Burke
JBoss, a division of Red Hat
http://bill.burkecentral.com