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From David Jencks <david_jen...@yahoo.com>
Subject Re: Xerces / JPA and Geronimo
Date Tue, 16 Dec 2008 02:23:27 GMT
Thanks for confirming this works!  I put a little documentation here:

http://cwiki.apache.org/confluence/display/GMOxDOC22/Classloading

david jencks

On Dec 15, 2008, at 12:59 PM, Christian Svensson wrote:

> Hello again.
>
> I put xercesImpl.jar in the endorsed directory and it seems to be  
> working.
> At least it survived a couple of redeployments.
>
> Thanks
>
> Greetings,
>
> On Mon, Dec 15, 2008 at 9:49 PM, Christian Svensson <blue@cmd.nu>  
> wrote:
> Hello.
>
> I'm using Geronimo 2.1.4-SNAPSHOT downloaded today.
> Xerces is the latest, 2.9.1 if I'm not mistaken.
>
> I'm putting xercesImpl.jar in my WEB-INF/lib directory.
>
> I'll try experimenting with the endorsed directory.
>
> Greetings.
>
>
> On Mon, Dec 15, 2008 at 9:33 PM, David Jencks  
> <david_jencks@yahoo.com> wrote:
> Which geronimo, which xerces, and how are you making your xerces  
> available to your app?
>
> It's been a very long time since I dealt with this kind of problem  
> but I have a faint memory that xml parsers are "endorsed" which  
> basically means that classloading for them is completely messed up.   
> I think you may need to put your copy of xerces in <geronimo-home>/ 
> lib/endorsed.  However I get endorsed and ext mixed up and it might  
> be lib/ext.
>
> hope this helps more than it confuses.
>
> david jencks
>
> On Dec 15, 2008, at 10:53 AM, Christian Svensson wrote:
>
>> Hello.
>>
>> I'm trying to make OpenJPA and Xerces play along.
>>
>> When I use my code as is without Xerces, everything works until I  
>> use new DocumentImpl(); - no surprise there.
>>
>> When I add my xercesImpl.jar, sometimes it works (I suppose when  
>> the ClassLoader hasn't got poisoned) and then it stops when I  
>> redeploy:
>>  org.apache.openjpa.persistence.PersistenceException:  
>> org.apache.xerces.parsers.XIncludeAwareParserConfiguration cannot  
>> be cast to org.apache.xerces.xni.parser.XMLParserConfiguration
>>
>>
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java: 
>> 196)
>>
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .kernel 
>> .DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:142)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .persistence 
>> .EntityManagerFactoryImpl 
>> .createEntityManager(EntityManagerFactoryImpl.java:192)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .persistence 
>> .EntityManagerFactoryImpl 
>> .createEntityManager(EntityManagerFactoryImpl.java:145)
>>
>>
>>
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .persistence 
>> .EntityManagerFactoryImpl 
>> .createEntityManager(EntityManagerFactoryImpl.java:56)
>> 	at org.cmd.web.fileserver.Browser.doGet(Browser.java:51)
>>
>>
>> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:693)
>>
>> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
>> 	at  
>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: 
>> 487)
>> 	at  
>> org 
>> .apache 
>> .geronimo 
>> .jetty6 
>> .InternalJettyServletHolder.handle(InternalJettyServletHolder.java: 
>> 65)
>>
>>
>>
>> 	at  
>> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java: 
>> 362)
>> 	at  
>> org 
>> .mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: 
>> 216)
>> 	at  
>> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java: 
>> 181)
>>
>>
>>
>> 	at  
>> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java: 
>> 726)
>> 	at  
>> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
>> 	at org.apache.geronimo.jetty6.handler.TwistyWebAppContext.access 
>> $101(TwistyWebAppContext.java:40)
>>
>>
>>
>> 	at org.apache.geronimo.jetty6.handler.TwistyWebAppContext 
>> $TwistyHandler.handle(TwistyWebAppContext.java:65)
>> 	at  
>> org 
>> .apache 
>> .geronimo 
>> .jetty6 
>> .handler 
>> .ThreadClassloaderHandler.handle(ThreadClassloaderHandler.java:46)
>>
>>
>> 	at  
>> org 
>> .apache 
>> .geronimo 
>> .jetty6 
>> .handler.InstanceContextHandler.handle(InstanceContextHandler.java: 
>> 58)
>>
>> 	at  
>> org 
>> .apache 
>> .geronimo 
>> .jetty6 
>> .handler.UserTransactionHandler.handle(UserTransactionHandler.java: 
>> 48)
>> 	at  
>> org 
>> .apache 
>> .geronimo 
>> .jetty6 
>> .handler 
>> .ComponentContextHandler.handle(ComponentContextHandler.java:47)
>> 	at  
>> org 
>> .apache 
>> .geronimo 
>> .jetty6.handler.TwistyWebAppContext.handle(TwistyWebAppContext.java: 
>> 59)
>>
>>
>>
>> 	at  
>> org 
>> .mortbay 
>> .jetty 
>> .handler 
>> .ContextHandlerCollection.handle(ContextHandlerCollection.java:206)
>> 	at  
>> org 
>> .mortbay 
>> .jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
>> 	at  
>> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: 
>> 139)
>>
>>
>>
>> 	at org.mortbay.jetty.Server.handle(Server.java:324)
>> 	at  
>> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: 
>> 505)
>> 	at org.mortbay.jetty.HttpConnection 
>> $RequestHandler.headerComplete(HttpConnection.java:828)
>>
>>
>>
>> 	at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)
>> 	at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
>> 	at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
>> 	at  
>> org 
>> .mortbay 
>> .io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)
>>
>>
>>
>> 	at org.apache.geronimo.pool.ThreadPool$1.run(ThreadPool.java:214)
>> 	at org.apache.geronimo.pool.ThreadPool 
>> $ContextClassLoaderRunnable.run(ThreadPool.java:344)
>> 	at java.util.concurrent.ThreadPoolExecutor 
>> $Worker.runTask(ThreadPoolExecutor.java:886)
>>
>>
>>
>> 	at java.util.concurrent.ThreadPoolExecutor 
>> $Worker.run(ThreadPoolExecutor.java:908)
>> 	at java.lang.Thread.run(Thread.java:619)
>> Caused by: java.lang.ClassCastException:  
>> org.apache.xerces.parsers.XIncludeAwareParserConfiguration cannot  
>> be cast to org.apache.xerces.xni.parser.XMLParserConfiguration
>>
>>
>>
>> 	at org.apache.xerces.parsers.DOMParser.(Unknown Source)
>> 	at org.apache.xerces.parsers.DOMParser.(Unknown Source)
>> 	at org.apache.xerces.jaxp.DocumentBuilderImpl.(Unknown Source)
>> 	at  
>> org 
>> .apache 
>> .xerces.jaxp.DocumentBuilderFactoryImpl.newDocumentBuilder(Unknown  
>> Source)
>>
>>
>>
>> 	at  
>> org.apache.openjpa.lib.xml.XMLFactory.getDOMParser(XMLFactory.java: 
>> 107)
>> 	at  
>> org 
>> .apache 
>> .openjpa.jdbc.sql.SQLErrorCodeReader.parse(SQLErrorCodeReader.java: 
>> 107)
>> 	at  
>> org 
>> .apache 
>> .openjpa.jdbc.sql.DBDictionary.endConfiguration(DBDictionary.java: 
>> 4128)
>>
>>
>>
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .lib.conf.Configurations.configureInstance(Configurations.java:505)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .lib.conf.Configurations.configureInstance(Configurations.java:430)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .jdbc 
>> .sql.DBDictionaryFactory.newDBDictionary(DBDictionaryFactory.java: 
>> 155)
>>
>>
>>
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .jdbc 
>> .sql.DBDictionaryFactory.newDBDictionary(DBDictionaryFactory.java:99)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .jdbc 
>> .conf 
>> .JDBCConfigurationImpl 
>> .getDBDictionaryInstance(JDBCConfigurationImpl.java:562)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .jdbc 
>> .meta.MappingRepository.endConfiguration(MappingRepository.java:1265)
>>
>>
>>
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .lib.conf.Configurations.configureInstance(Configurations.java:505)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .lib.conf.Configurations.configureInstance(Configurations.java:430)
>> 	at  
>> org 
>> .apache.openjpa.lib.conf.PluginValue.instantiate(PluginValue.java: 
>> 103)
>>
>>
>>
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .conf 
>> .MetaDataRepositoryValue.instantiate(MetaDataRepositoryValue.java:68)
>> 	at  
>> org 
>> .apache.openjpa.lib.conf.ObjectValue.instantiate(ObjectValue.java:83)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .conf 
>> .OpenJPAConfigurationImpl 
>> .newMetaDataRepositoryInstance(OpenJPAConfigurationImpl.java:863)
>>
>>
>>
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .conf 
>> .OpenJPAConfigurationImpl 
>> .getMetaDataRepositoryInstance(OpenJPAConfigurationImpl.java:854)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .kernel 
>> .AbstractBrokerFactory.makeReadOnly(AbstractBrokerFactory.java:638)
>>
>>
>>
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java: 
>> 183)
>> 	... 36 more
>>
>> Caused by:
>>
>> java.lang.ClassCastException:  
>> org.apache.xerces.parsers.XIncludeAwareParserConfiguration cannot  
>> be cast to org.apache.xerces.xni.parser.XMLParserConfiguration
>>
>>
>>
>> 	at org.apache.xerces.parsers.DOMParser.(Unknown Source)
>> 	at org.apache.xerces.parsers.DOMParser.(Unknown Source)
>> 	at org.apache.xerces.jaxp.DocumentBuilderImpl.(Unknown Source)
>> 	at  
>> org 
>> .apache 
>> .xerces.jaxp.DocumentBuilderFactoryImpl.newDocumentBuilder(Unknown  
>> Source)
>>
>>
>>
>> 	at  
>> org.apache.openjpa.lib.xml.XMLFactory.getDOMParser(XMLFactory.java: 
>> 107)
>> 	at  
>> org 
>> .apache 
>> .openjpa.jdbc.sql.SQLErrorCodeReader.parse(SQLErrorCodeReader.java: 
>> 107)
>> 	at  
>> org 
>> .apache 
>> .openjpa.jdbc.sql.DBDictionary.endConfiguration(DBDictionary.java: 
>> 4128)
>>
>>
>>
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .lib.conf.Configurations.configureInstance(Configurations.java:505)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .lib.conf.Configurations.configureInstance(Configurations.java:430)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .jdbc 
>> .sql.DBDictionaryFactory.newDBDictionary(DBDictionaryFactory.java: 
>> 155)
>>
>>
>>
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .jdbc 
>> .sql.DBDictionaryFactory.newDBDictionary(DBDictionaryFactory.java:99)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .jdbc 
>> .conf 
>> .JDBCConfigurationImpl 
>> .getDBDictionaryInstance(JDBCConfigurationImpl.java:562)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .jdbc 
>> .meta.MappingRepository.endConfiguration(MappingRepository.java:1265)
>>
>>
>>
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .lib.conf.Configurations.configureInstance(Configurations.java:505)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .lib.conf.Configurations.configureInstance(Configurations.java:430)
>> 	at  
>> org 
>> .apache.openjpa.lib.conf.PluginValue.instantiate(PluginValue.java: 
>> 103)
>>
>>
>>
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .conf 
>> .MetaDataRepositoryValue.instantiate(MetaDataRepositoryValue.java:68)
>> 	at  
>> org 
>> .apache.openjpa.lib.conf.ObjectValue.instantiate(ObjectValue.java:83)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .conf 
>> .OpenJPAConfigurationImpl 
>> .newMetaDataRepositoryInstance(OpenJPAConfigurationImpl.java:863)
>>
>>
>>
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .conf 
>> .OpenJPAConfigurationImpl 
>> .getMetaDataRepositoryInstance(OpenJPAConfigurationImpl.java:854)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .kernel 
>> .AbstractBrokerFactory.makeReadOnly(AbstractBrokerFactory.java:638)
>>
>>
>>
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java: 
>> 183)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .kernel 
>> .DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:142)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .persistence 
>> .EntityManagerFactoryImpl 
>> .createEntityManager(EntityManagerFactoryImpl.java:192)
>>
>>
>>
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .persistence 
>> .EntityManagerFactoryImpl 
>> .createEntityManager(EntityManagerFactoryImpl.java:145)
>> 	at  
>> org 
>> .apache 
>> .openjpa 
>> .persistence 
>> .EntityManagerFactoryImpl 
>> .createEntityManager(EntityManagerFactoryImpl.java:56)
>>
>>
>>
>> 	at org.cmd.web.fileserver.Browser.doGet(Browser.java:51)
>> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:693)
>> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
>>
>>
>> 	at  
>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: 
>> 487)
>>
>> 	at  
>> org 
>> .apache 
>> .geronimo 
>> .jetty6 
>> .InternalJettyServletHolder.handle(InternalJettyServletHolder.java: 
>> 65)
>> 	at  
>> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java: 
>> 362)
>> 	at  
>> org 
>> .mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: 
>> 216)
>>
>>
>>
>> 	at  
>> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java: 
>> 181)
>> 	at  
>> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java: 
>> 726)
>> 	at  
>> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
>>
>>
>>
>> 	at org.apache.geronimo.jetty6.handler.TwistyWebAppContext.access 
>> $101(TwistyWebAppContext.java:40)
>> 	at org.apache.geronimo.jetty6.handler.TwistyWebAppContext 
>> $TwistyHandler.handle(TwistyWebAppContext.java:65)
>> 	at  
>> org 
>> .apache 
>> .geronimo 
>> .jetty6 
>> .handler 
>> .ThreadClassloaderHandler.handle(ThreadClassloaderHandler.java:46)
>>
>>
>>
>> 	at  
>> org 
>> .apache 
>> .geronimo 
>> .jetty6 
>> .handler.InstanceContextHandler.handle(InstanceContextHandler.java: 
>> 58)
>> 	at  
>> org 
>> .apache 
>> .geronimo 
>> .jetty6 
>> .handler.UserTransactionHandler.handle(UserTransactionHandler.java: 
>> 48)
>> 	at  
>> org 
>> .apache 
>> .geronimo 
>> .jetty6 
>> .handler 
>> .ComponentContextHandler.handle(ComponentContextHandler.java:47)
>>
>>
>>
>> 	at  
>> org 
>> .apache 
>> .geronimo 
>> .jetty6.handler.TwistyWebAppContext.handle(TwistyWebAppContext.java: 
>> 59)
>> 	at  
>> org 
>> .mortbay 
>> .jetty 
>> .handler 
>> .ContextHandlerCollection.handle(ContextHandlerCollection.java:206)
>> 	at  
>> org 
>> .mortbay 
>> .jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
>>
>>
>>
>> 	at  
>> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: 
>> 139)
>> 	at org.mortbay.jetty.Server.handle(Server.java:324)
>> 	at  
>> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: 
>> 505)
>> 	at org.mortbay.jetty.HttpConnection 
>> $RequestHandler.headerComplete(HttpConnection.java:828)
>>
>>
>>
>> 	at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)
>> 	at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
>> 	at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
>> 	at  
>> org 
>> .mortbay 
>> .io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)
>>
>>
>>
>> 	at org.apache.geronimo.pool.ThreadPool$1.run(ThreadPool.java:214)
>> 	at org.apache.geronimo.pool.ThreadPool 
>> $ContextClassLoaderRunnable.run(ThreadPool.java:344)
>> 	at java.util.concurrent.ThreadPoolExecutor 
>> $Worker.runTask(ThreadPoolExecutor.java:886)
>>
>>
>>
>> 	at java.util.concurrent.ThreadPoolExecutor 
>> $Worker.run(ThreadPoolExecutor.java:908)
>> 	at java.lang.Thread.run(Thread.java:619)
>>
>> As a novice I see two options:
>>
>> a) Use the same xerces as OpenJPA - I've been unsuccessful in  
>> locating it though.
>> b) Shield the application somehow. I know that EARs have hidden- 
>> classes, but reading mailing lists it would see that it does not  
>> work with Xerces - why I'm not sure.
>>
>> How do I get around this issue?
>>
>> Greetings,
>> -- 
>> Christian Svensson
>> Command Systems
>
>
>
>
> -- 
> Christian Svensson
> Command Systems
>
>
>
> -- 
> Christian Svensson
> Command Systems


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