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https://issues.apache.org/jira/browse/FELIX-3696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13467632#comment-13467632
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Miguel Ángel Pastor Olivar commented on FELIX-3696:
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Hey Karl,

1. Your are right; it was just a typo :( Sorry!

2. I have been debugging and this exception is throw here  Resource res = 
loader.getResource(name, check); The loader causing this exception is the 
loader injected by the ExtensionManager

3 The URL has the format "java: ......PortletBridge", so, for sure, this is the 
root cause of the exception (IllegalArgumentException). But, if I disable the 
embedded container I does not get this error anymore. The loader being injected 
is causing this problem.

4 I am using version 4.0.3; I will try with current trunk and I will let you 
know.

Thx!

                
> Extension Bundle system adds loader to the classloader which can make other 
> libraries to fail
> ---------------------------------------------------------------------------------------------
>
>                 Key: FELIX-3696
>                 URL: https://issues.apache.org/jira/browse/FELIX-3696
>             Project: Felix
>          Issue Type: Bug
>    Affects Versions: framework-4.0.2
>            Reporter: Miguel Ángel Pastor Olivar
>
> I am embedding Apache Felix (and Equinox because I would like to switch 
> depending on the application server I am running on).
> * The xalan ExtensionHandler executes something like this: 
> ObjectFactory.findProviderClass(className, ObjectFactory.findClassLoader(), 
> true)
> * The className has the format 
> "java:org.portletbridge.portlet.BridgeFunctions" ( I am embedding the OSGI 
> container into Liferay portal :) )
> * The extension manager have already added the extension loader to the 
> classloader
> {code}
>   
> Felix.m_secureAction.addURLToURLClassLoader(Felix.m_secureAction.createURL(Felix.m_secureAction.createURL(null,
>  "http:", extensionManager),"http://felix.extensions:9/";, 
> extensionManager),Felix.class.getClassLoader());
> {code}
> * When the classloader try to resolve the 
> "java:org.portletbridge.portlet.BridgeFunctions" the previous loader added by 
> the ExtensionManager cause an unhandled error.
> In sun.misc.URL
> {code}
>     public Resource getResource(String name, boolean check) {
>         if (DEBUG) {
>             System.err.println("URLClassPath.getResource(\"" + name + "\")");
>         }
>         Loader loader;
>         for (int i = 0; (loader = getLoader(i)) != null; i++) {
>             Resource res = loader.getResource(name, check);
>             if (res != null) {
>                 return res;
>             }
>         }
>         return null;
>     }
> {code}
> In the previous code, the loader injected by the framework is causing an 
> IllegalArgumentException here:
> Resource res = loader.getResource(name, check); (instead of returning null)
> Let me know if you need some more details.

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