Looks like a ClassLoader bug

[Timo Walther]

Hey everyone,

I'm still trying to finish the Hadoop Compatibility PR 
(https://github.com/stratosphere/stratosphere/pull/777), however, I 
always get an ClassNotFoundException for my HCatalog InputFormat on the 
cluster.

While searching for potential ClassLoader bugs, I found the following 
lines in UserCodeClassWrapper:

@Override
    public T getUserCodeObject(Class<? super T> superClass, ClassLoader 
cl) {
        return InstantiationUtil.instantiate(userCodeClass, superClass);
    }

Why is the given "ClassLoader cl" argument never used? Looks for me like 
a bug... What do you think?

Thanks,
Timo