DefaultPicoContainer.registerComponentInstance() does not return adapter from .registerComponent()

I have subclassed DefaultPicoContainer so that it will always wrap component adaptors with my own scoped caching component adapter.

To do this I have overriden registerComponent which is called by all the other register* methods. However, registerComponentInstance() does not return the adapter that was returned by registerComponent. It always returns its own InstanceComponentAdapter.

This is how it works now:

ComponentAdapter componentAdapter = new InstanceCompone...
registerComponent(componentAdapter);
return componentAdapter;

I expected it to work like this:

ComponentAdapter componentAdapter = new InstanceCompone...
return registerComponent(componentAdapter);

Thanks,

John