>1) the correct JDK (think 5.5.28 runs with 1.5, doesn't it ?)
Running with JDK 1.6.0_16

> 2) the correct xerces - libraries in your classpath
I've got xercesImpl.jar (2.9.1) in my WEB-INF/lib folder and as far as
I know that is the only SAXParser.

> 3) not any other libraries in your classpath that provide a SaxParser.
Not that I'm aware of but how would I know?  I have Struts 2 and
Hibernate and all there dependent jars but nothing else that looks
like it's an XML parser.


>regarding your reloading problem I have another idea. Look here,
>if you have the next problem :)
>http://tomcat.apache.org/tomcat-5.5-doc/config/context.html
I not finding anything that looks like a problem off this link.

Again, everything works when I launch Tomcat fresh or restart it from
within Eclipse. I only get the error when Tomcat attempts to reload
the application.

Here seems to be the core issue:

Caused by: java.lang.ClassCastException:
org.apache.xerces.parsers.XIncludeAwareParserConfiguration cannot be
cast to org.apache.xerces.xni.parser.XMLParserConfiguration


Any ideas on how to figure out what is going on?


On Thu, Feb 25, 2010 at 4:13 PM, Volker Karlmeier <volker@(protected):
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hi again,
>
> regarding your reloading problem I have another idea. Look here,
> if you have the next problem :)
> http://tomcat.apache.org/tomcat-5.5-doc/config/context.html
>
> regards
>
>  Volker
>
>
>
> Am 24.02.2010 16:33, schrieb Greg Lindholm:
>> I decided to finally ask about this problem I've been seeing for
>> several years. During development I will run my Struts 2 (2.1.8)
>> apps in Tomcat (5.5.25) from Eclipse (3.5.1). I've included the
>> current versions I'm using but this problem goes way back over many
>> different versions over a couple years.
>>
>> Here's the problem, if I make any changes while the app is running
>> like change a properties file of change a class, Eclipse will push
>> the changes to the deploy area and Tomcat will see the change and
>> attempt to reload the application (that's all good and expected).
>> However the reload always fails with the exception stack below and
>> I have to manually stop and restart Tomcat to get it to load
>> successfully and see the updates.  I never had this problem with
>> Struts 1 or even JSF, Tomcat was always able to reload the apps
>> automatically.
>>
>> Anyone have any idea why the reload is failing and how to fix?
>>
>> Here is the stack dump:
>>
>> Feb 24, 2010 10:15:44 AM
>> org.apache.catalina.loader.WebappClassLoader findResourceInternal
>> INFO: Illegal access: this web application instance has been
>> stopped already.  Could not load
>> META-INF/services/org.apache.xerces.xni.parser.XMLParserConfiguration.
>>
>>
> The eventual following stack trace is caused by an error thrown for
>> debugging purposes as well as to attempt to terminate the thread
>> which caused the illegal access, and has no functional impact.
>> 2010-02-24 10:15:44,081 ERROR
>> org.apache.struts2.dispatcher.Dispatcher:27 - Dispatcher
>> initialization failed Unable to load configuration. - [unknown
>> location] at
>> com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration (ConfigurationManager.java:58)
>>
>>
> at
> org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration (Dispatcher.java:374)
>> at
>> org.apache.struts2.dispatcher.Dispatcher.init (Dispatcher.java:418)
>> at
>> org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher (InitOperations.java:69)
>>
>>
> at
> org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init (StrutsPrepareAndExecuteFilter.java:51)
>> at
>> org.apache.catalina.core.ApplicationFilterConfig.getFilter (ApplicationFilterConfig.java:221)
>>
>>
> at
> org.apache.catalina.core.ApplicationFilterConfig.setFilterDef (ApplicationFilterConfig.java:302)
>> at
>> org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:78)
>>
>>
> at
> org.apache.catalina.core.StandardContext.filterStart (StandardContext.java:3635)
>> at
>> org.apache.catalina.core.StandardContext.start (StandardContext.java:4222)
>>
>>
> at
> org.apache.catalina.core.StandardContext.reload (StandardContext.java:3025)
>> at
>> org.apache.catalina.loader.WebappLoader.backgroundProcess (WebappLoader.java:432)
>>
>>
> at
> org.apache.catalina.core.ContainerBase.backgroundProcess (ContainerBase.java:1278)
>> at
>> org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1570)
>>
>>
> at
> org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1579)
>> at
>> org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1579)
>>
>>
> at
> org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1559)
>> at java.lang.Thread.run (Thread.java:619) Caused by: Caught
>> exception while loading file struts-default.xml - [unknown
>> location] at
>> com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadConfigurationFiles (XmlConfigurationProvider.java:902)
>>
>>
> at
> com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadDocuments (XmlConfigurationProvider.java:143)
>> at
>> com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.init (XmlConfigurationProvider.java:110)
>>
>>
> at
> com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer (DefaultConfiguration.java:168)
>> at
>> com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration (ConfigurationManager.java:55)
>>
>>
> ... 17 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.<init>(Unknown Source) at
>> org.apache.xerces.parsers.DOMParser.<init>(Unknown Source) at
>> org.apache.xerces.jaxp.DocumentBuilderImpl.<init>(Unknown Source)
>> at
>> org.apache.xerces.jaxp.DocumentBuilderFactoryImpl.newDocumentBuilder(Unknown
>>
>>
> Source)
>> at
>> com.sun.org.apache.xalan.internal.xsltc.trax.SAX2DOM.createDocument (SAX2DOM.java:326)
>>
>>
> at
> com.sun.org.apache.xalan.internal.xsltc.trax.SAX2DOM.<init>(SAX2DOM.java:85)
>> at
>> com.sun.org.apache.xalan.internal.xsltc.runtime.output.TransletOutputHandlerFactory.getSerializationHandler (TransletOutputHandlerFactory.java:187)
>>
>>
> at
> com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.getOutputHandler (TransformerImpl.java:392)
>> at
>> com.sun.org.apache.xalan.internal.xsltc.trax.TransformerHandlerImpl.setResult (TransformerHandlerImpl.java:137)
>>
>>
> at
> com.opensymphony.xwork2.util.DomHelper$DOMBuilder.setup(DomHelper.java:205)
>> at
>> com.opensymphony.xwork2.util.DomHelper$DOMBuilder.<init>(DomHelper.java:190)
>>
>>
> at
> com.opensymphony.xwork2.util.DomHelper$DOMBuilder.<init>(DomHelper.java:181)
>> at
>> com.opensymphony.xwork2.util.DomHelper$DOMBuilder.<init>(DomHelper.java:167)
>>
>>
> at com.opensymphony.xwork2.util.DomHelper.parse (DomHelper.java:107)
>> at
>> com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadConfigurationFiles (XmlConfigurationProvider.java:893)
>>
>>
> ... 21 more
>> 2010-02-24 10:15:46,982 ERROR
>> org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/amsn]:3639
>>
>>
> - - Exception starting filter struts2
>> Unable to load configuration. - [unknown location] at
>> org.apache.struts2.dispatcher.Dispatcher.init (Dispatcher.java:431)
>> at
>> org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher (InitOperations.java:69)
>>
>>
> at
> org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init (StrutsPrepareAndExecuteFilter.java:51)
>> at
>> org.apache.catalina.core.ApplicationFilterConfig.getFilter (ApplicationFilterConfig.java:221)
>>
>>
> at
> org.apache.catalina.core.ApplicationFilterConfig.setFilterDef (ApplicationFilterConfig.java:302)
>> at
>> org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:78)
>>
>>
> at
> org.apache.catalina.core.StandardContext.filterStart (StandardContext.java:3635)
>> at
>> org.apache.catalina.core.StandardContext.start (StandardContext.java:4222)
>>
>>
> at
> org.apache.catalina.core.StandardContext.reload (StandardContext.java:3025)
>> at
>> org.apache.catalina.loader.WebappLoader.backgroundProcess (WebappLoader.java:432)
>>
>>
> at
> org.apache.catalina.core.ContainerBase.backgroundProcess (ContainerBase.java:1278)
>> at
>> org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1570)
>>
>>
> at
> org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1579)
>> at
>> org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1579)
>>
>>
> at
> org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1559)
>> at java.lang.Thread.run (Thread.java:619) Caused by: Unable to load
>> configuration. - [unknown location] at
>> com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration (ConfigurationManager.java:58)
>>
>>
> at
> org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration (Dispatcher.java:374)
>> at
>> org.apache.struts2.dispatcher.Dispatcher.init (Dispatcher.java:418)
>> ... 15 more Caused by: Caught exception while loading file
>> struts-default.xml - [unknown location] at
>> com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadConfigurationFiles (XmlConfigurationProvider.java:902)
>>
>>
> at
> com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadDocuments (XmlConfigurationProvider.java:143)
>> at
>> com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.init (XmlConfigurationProvider.java:110)
>>
>>
> at
> com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer (DefaultConfiguration.java:168)
>> at
>> com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration (ConfigurationManager.java:55)
>>
>>
> ... 17 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.<init>(Unknown Source) at
>> org.apache.xerces.parsers.DOMParser.<init>(Unknown Source) at
>> org.apache.xerces.jaxp.DocumentBuilderImpl.<init>(Unknown Source)
>> at
>> org.apache.xerces.jaxp.DocumentBuilderFactoryImpl.newDocumentBuilder(Unknown
>>
>>
> Source)
>> at
>> com.sun.org.apache.xalan.internal.xsltc.trax.SAX2DOM.createDocument (SAX2DOM.java:326)
>>
>>
> at
> com.sun.org.apache.xalan.internal.xsltc.trax.SAX2DOM.<init>(SAX2DOM.java:85)
>> at
>> com.sun.org.apache.xalan.internal.xsltc.runtime.output.TransletOutputHandlerFactory.getSerializationHandler (TransletOutputHandlerFactory.java:187)
>>
>>
> at
> com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.getOutputHandler (TransformerImpl.java:392)
>> at
>> com.sun.org.apache.xalan.internal.xsltc.trax.TransformerHandlerImpl.setResult (TransformerHandlerImpl.java:137)
>>
>>
> at
> com.opensymphony.xwork2.util.DomHelper$DOMBuilder.setup(DomHelper.java:205)
>> at
>> com.opensymphony.xwork2.util.DomHelper$DOMBuilder.<init>(DomHelper.java:190)
>>
>>
> at
> com.opensymphony.xwork2.util.DomHelper$DOMBuilder.<init>(DomHelper.java:181)
>> at
>> com.opensymphony.xwork2.util.DomHelper$DOMBuilder.<init>(DomHelper.java:167)
>>
>>
> at com.opensymphony.xwork2.util.DomHelper.parse (DomHelper.java:107)
>> at
>> com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadConfigurationFiles (XmlConfigurationProvider.java:893)
>>
>>
> ... 21 more
>> Feb 24, 2010 10:15:49 AM org.apache.catalina.core.StandardContext
>> start SEVERE: Error filterStart Feb 24, 2010 10:15:49 AM
>> org.apache.catalina.core.StandardContext start SEVERE: Context
>> [/amsn] startup failed due to previous errors
>>
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>>
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>>
>
>
> - --
> - -------------------------------
> words a just some place to hide
> a wall that we can run behind..
> - -------------------------------
> Volker Karlmeier
> Friedrich-Freye-Str. 61
> 45481 Mlheim/Ruhr
>
> Tel. :  (+49) 208-7785675
> Mobil:  (+49) 176-21056587
> Mail :  Volker@(protected)
>
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>

Greg Lindholm wrote:
> This mailing list on Nabble seems to be gone, at least I can't find it.

http://old.nabble.com/Struts-f203.html

-Dale