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https://issues.apache.org/jira/browse/FELIX-3696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13482404#comment-13482404
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Miguel Ángel Pastor Olivar commented on FELIX-3696:
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Hey Karl,
I would like to come through this issue again. I have been doing some more
testing, this time with JBoss, and having the Extension Bundle enabled makes it
completely unusable inside JBoss (every time I try to install a Bundle I get an
UnsupportedOperationException "java.lang.UnsupportedOperationException: Unable
to add extension bundle to FrameworkClassLoader - Maybe not an URLClassLoader?"
Having a configuration property in order to be able to activate/deactivate the
extension bundle would be a nice feature. Seems it shouldn't be too much
complicated, but maybe it has further implications I can not see.
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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