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Benchmarking classloaders

reply from Kabir Khan in JBoss Microcontainer Development - View the full discussion

Ales Justin wrote:

 

Ales, can you take a look at how I am setting up the VFSClassLoaderFactories?

Should be fine.

 

So to get the tests straight.

Why the three level hierarchy depth?

The three levels was inspired by David's stuff, as I understood it a load of one class triggers load of some others. It can certainly be made simpler though, so I can do a one-level set tomorrow.

Ales Justin wrote:

Who creates requirements and who provides the capabilities?

Why the re-export on module and package?

The requirements and capabilities are set up in the individial tests. I'm  not sure about the re-export, is it needed when Impl (loaderA) loads its superclass AbstractImpl (loaderB) which in turn brings in its interface (loaderC)?

The thing I found strange was that for the Module test I had to specify the packages as a capability as well as the module, but I'm not that familiar with how this works so maybe that's how it should be.

What happens if you don't do this?

I get an exception, IIRC NoClassDefFoundError when trying to load the superclass which comes from a loader that only exports the module and not also the packages. But maybe there is another setting to get around this?

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