[ews.eclipse.technology.aspectj] Multiple instances of the same class wo

[Ptitjes <ptitjes@xxxxxxxx>]

Hello,

[Sorry, i cross-posted this in eclipse.technology.aspectj, 
eclipse.technology.ajdt, eclipse.technology.equinox because i did not 
know exactely who could answer this.]

I try to write an RCP app in which i need multiple instances of the same 
classes woven against different aspects.

I don't know how classloading works into the Eclipse OSGi runtime and i 
did not find any articles about it on the web.

I tried to use the org.aspectj.weawer.loadtime.WeavingURLClassLoader 
provided with AspectJ5 but i can't succeed making it to work inside a 
plugin. It seems that my class is already loaded by a parent classloader 
(the one of the plugin maybe).

I took care no other reference is made to the classes to weave. I just 
refer to those classes via the reflective API via my weaving classloader 
like this :

public class TestClassFactory
{
    public static TestInterface newTestClass(URL[] aspectURLs,
        ClassLoader parent) throws ClassNotFoundException
    {
        ClassLoader loader = createClassLoader(aspectURLs, parent);
        Class testClass = 
loader.loadClass("org.beuz.lib.aspect1.TestClass");

        try
        {
            Constructor constructor = testClass.getConstructor(new 
Class[] {});
            return (TestInterface) constructor.newInstance();
        }
        catch (Exception e)
        {
            // Should note occur
            e.printStackTrace();
        }
        return null;
    }

    private static ClassLoader createClassLoader(URL[] aspectURLs,
        ClassLoader parent)
    {
        if (parent == null)
        {
            parent = TestClassFactory.class.getClassLoader();
        }
        return new MyWeavingClassLoader(aspectURLs, parent);
    }

    private static class MyWeavingClassLoader extends WeavingURLClassLoader
    {
        public MyWeavingClassLoader(URL[] aspectURLs, ClassLoader parent)
        {
            super(parent);
            m_aspectURLs = aspectURLs;

        }

        private URL[] m_aspectURLs;

        @Override
        public URL[] getAspectURLs()
        {
            return m_aspectURLs;
        }
    }
}

Does someone knows how to do this ?

I can send my test with three minimal plugins if someone wants.

Thanks for your help,
Didier