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The "HowToRunTapestry5OnJBoss6Dot1" page has been changed by GeoffCallender:
http://wiki.apache.org/tapestry/HowToRunTapestry5OnJBoss6Dot1

New page:
Tapestry 5.x cannot find the core pages and components from the URLs provided 
from classloaders in JBoss 6.1. We will override Tapestry's 
ClasspathURLConverter with one customised for JBoss 6.1. This builds on the 
work done for JBoss 5 in https://issues.apache.org/jira/browse/TAP5-576 .

{{{
public class ClasspathURLConverterJBoss6Dot1 implements ClasspathURLConverter
{
    private static Logger log = 
Logger.getLogger(ClasspathURLConverterJBoss6Dot1.class);

    public URL convert(URL url)
    {
        // If the URL is a "vfs" URL (JBoss 6.1 uses a Virtual File System)...

        if (url != null && url.getProtocol().startsWith("vfs"))
        {
            // Ask the VFS what the physical URL is...

            try
            {
                String urlString = url.toString();
                        
                // If the virtual URL involves a JAR file, 
                // we have to figure out its physical URL ourselves because
                // in JBoss 6.1 the JAR files exploded into the VFS are empty 
                // (see https://issues.jboss.org/browse/JBAS-8786).
                // Our workaround is that they are available, unexploded, 
                // within the otherwise exploded WAR file.

                if (urlString.contains(".jar")) {
                                        
                    // An example URL: 
"vfs:/devel/jboss-6.1.0.Final/server/default/deploy/myapp.ear/myapp.war/WEB-INF/lib/tapestry-core-5.2.6.jar/org/apache/tapestry5/corelib/components/"
                    // Break the URL into its WAR part, the JAR part, 
                    // and the Java package part.
                                        
                    int warPartEnd = urlString.indexOf(".war") + 4;
                    String warPart = urlString.substring(0, warPartEnd);
                    int jarPartEnd = urlString.indexOf(".jar") + 4;
                    String jarPart = urlString.substring(warPartEnd, 
jarPartEnd);
                    String packagePart = urlString.substring(jarPartEnd);

                    // Ask the VFS where the exploded WAR is.

                    URL warURL = new URL(warPart);
                    URLConnection warConnection = warURL.openConnection();
                    Object jBossVirtualWarDir = warConnection.getContent();
                    // Use reflection so that we don't need JBoss in the 
classpath at compile time.
                    File physicalWarDir = (File) invoke(jBossVirtualWarDir, 
"getPhysicalFile");
                    String physicalWarDirStr = 
physicalWarDir.toURI().toString();

                    // Return a "jar:" URL constructed from the parts
                    // eg. 
"jar:file:/devel/jboss-6.1.0.Final/server/default/tmp/vfs/automount40a6ed1db5eabeab/myapp.war-43e2c3dfa858f4d2//WEB-INF/lib/tapestry-core-5.2.6.jar!/org/apache/tapestry5/corelib/components/".

                    String actualJarPath = "jar:" + physicalWarDirStr + jarPart 
+ "!" + packagePart;
                    return new URL(actualJarPath);
                }
                                
                // Otherwise, ask the VFS what the physical URL is...
                                
                else {

                    URLConnection connection = url.openConnection();
                    Object jBossVirtualFile = connection.getContent();
                    // Use reflection so that we don't need JBoss in the 
classpath at compile time.
                    File physicalFile = (File) invoke(jBossVirtualFile, 
"getPhysicalFile");
                    URL physicalFileURL = physicalFile.toURI().toURL();
                    return physicalFileURL;
                }

            }
            catch (Exception e)
            {
                logger.error(e.getCause().toString());
            }
        }

        return url;
    }

    private Object invokerGetter(Object target, String getter) throws 
NoSuchMethodException, InvocationTargetException, IllegalAccessException
    {
        Class<?> type = target.getClass();
        Method method;
        try
        {
            method = type.getMethod(getter);
        }
        catch (NoSuchMethodException e)
        {
            method = type.getDeclaredMethod(getter);
            method.setAccessible(true);
        }
        return method.invoke(target);
    }

}
}}}

To override the default implementation of ClasspathURLConverter, just add the 
above ClasspathURLConverterJBoss6Dot1.java to your project and add the 
following piece of code to your AppModule.java.

{{{
public static void contributeServiceOverride(MappedConfiguration<Class,Object> 
configuration)
{
    configuration.add(ClasspathURLConverter.class, new 
ClasspathURLConverterJBoss6Dot1());
}    
}}}


The above just override the default ClaspathURLConverter service. For more 
information on overriding a general service, please see 
http://tapestry.apache.org/ioc-cookbook-overriding-ioc-services.html.

The above fix has been tested with Tapestry 5.2 on JBoss 6.1.0.

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