I'd like to implement my own custom ClassLoader. Basically it should do exactly what the default OSGi ClassLoader does.
I am using Karaf/Felix, so in my case that's org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader
The reason for implementing my own class loader is: I use JNI to load a DLL (with System.load()). But every time I redeploy my bundle I get a UnsatisfiedLinkError exception (Native Library xyz.dll already loaded in another classloader).
This is because the DLL is already loaded by the JVM - and stays as long as the ClassLoader that loaded it is NOT garbage collected.
So I want to do something like this:
CustomClassLoader cl = new CustomClassLoader();
Class ca = cl.findClass("myPackage.MyClass");
Object a = ca.newInstance();
Method p = ca.getMethod("myMethod");
p.invoke(a);
p = null;
ca = null;
a = null;
cl = null;
System.gc();
Hopefully after that the CustomClassLoader is garbage collected - and the DLL is unloaded from the container.
What I found strange: Even so each bundle has it's own ClassLoader, an osgi:uninstall <bundle> does not unload the DLL - which means that the bundles ClassLoader is still alive (and not garbage collected).
