[jboss-jira] [JBoss JIRA] Commented: (JBESB-391) sometimes the parser is not found when doing a parameter reload.

[Kurt Stam (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBESB-391?page=comments#action_12351563 ] 
            
Kurt Stam commented on JBESB-391:
---------------------------------

This has to do with the undeploying the sar. When the jboss-service.xml is touched, the sar reloads, the MBeans are stopped which call unregister on the listener and gateways. The unregister is not successful because of classloading issues. 

If the jbossesb.xml is emptied the listeners unregister nicely. This clearly is a timing issue.

Not sure how to get around this.





> sometimes the parser is not found when doing a parameter reload.
> ----------------------------------------------------------------
>
>                 Key: JBESB-391
>                 URL: http://jira.jboss.com/jira/browse/JBESB-391
>             Project: JBoss ESB
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 4.0
>         Environment: any
>            Reporter: Kurt Stam
>         Assigned To: Mark Little
>             Fix For: 4.0
>
>
> When running the deployToSar task of the hello world quickstart on a running jboss, the timestamp on the jbossesb.xml changes and the parameters are reloaded. When this happens sometimes see the following stacktrace:
> 15:18:25,687 INFO  [Server] JBoss (MX MicroKernel) [4.0.5.GA (build: CVSTag=Branch_4_0 date=200610162339)] Started in 40s:875ms
> 15:18:47,296 ERROR [STDERR] Exception in thread "Thread-6" 
> 15:18:47,296 ERROR [STDERR] org.apache.xerces.parsers.ObjectFactory$ConfigurationError: Provider org.apache.xerces.parsers.XIncludeAwareParserConfiguration could not be instantiated: java.lang.NullPointerException
> 15:18:47,296 ERROR [STDERR] 	at org.apache.xerces.parsers.ObjectFactory.newInstance(Unknown Source)
> 15:18:47,296 ERROR [STDERR] 	at org.apache.xerces.parsers.ObjectFactory.createObject(Unknown Source)
> 15:18:47,296 ERROR [STDERR] 	at org.apache.xerces.parsers.ObjectFactory.createObject(Unknown Source)
> 15:18:47,296 ERROR [STDERR] 	at org.apache.xerces.parsers.DOMParser.<init>(Unknown Source)
> 15:18:47,296 ERROR [STDERR] 	at org.apache.xerces.parsers.DOMParser.<init>(Unknown Source)
> 15:18:47,296 ERROR [STDERR] 	at org.apache.xerces.jaxp.DocumentBuilderImpl.<init>(Unknown Source)
> 15:18:47,296 ERROR [STDERR] 	at org.apache.xerces.jaxp.DocumentBuilderFactoryImpl.newDocumentBuilder(Unknown Source)
> 15:18:47,296 ERROR [STDERR] 	at org.jboss.soa.esb.listeners.config.XmlValidatorImpl.validate(XmlValidatorImpl.java:160)
> 15:18:47,296 ERROR [STDERR] 	at org.jboss.soa.esb.listeners.config.ConfigurationController.processConfiguration(ConfigurationController.java:176)
> 15:18:47,296 ERROR [STDERR] 	at org.jboss.soa.esb.listeners.config.ConfigurationController.run(ConfigurationController.java:113)
> 15:18:47,296 ERROR [STDERR] 	at java.lang.Thread.run(Thread.java:595)
> 15:19:12,515 ERROR [STDERR] Exception in thread "Thread-15" 
> which is thrown from the line 160 in the XmlValidatorImpl:
> parser = builderFactory.newDocumentBuilder();
> The issue seems to fix it self, as it seems to be successful 5 seconds later.

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