
public class InterfaceConsumer
{
    public InterfaceConsumer() { }

    public boolean consumeInterface( Interface interf ) {
        String s = interf.getString();
        Integer i = interf.getInteger();
        int i2 = interf.getPrimitiveInt();
        boolean b = interf.getPrimitiveBool();
        assertTrue( interf.getNull() == null );
        return true;
    }
    public static void assertTrue( boolean cond ) {
        if ( !cond ) throw new RuntimeException("assert failed..");
    }
}

