This happens in build 39.
Using the following class I get null for the Class Loader after I set a working 
directory (in the Debugger Execution). Without a working directory I get 
sun.misc.Launcher$AppClassLoader@12c2dc8
This is a problem for me since external jar's don't seem to get loaded properly 
when there is no class loader for the main class. This only happens in the 
debugger, when doing Execute there seems to be a class loader.

package testbed;

public class Tester extends java.lang.Object {
    public Tester() {
    }

    public void test(){
        System.out.println(getClass());
        System.out.println(getClass().getClassLoader());
    }
    
    public static void main (String args[]) {
        Tester t = new Tester();
        t.test();
    }
}