private Class<?> defineClassInSingleServingLoader(
     ICompilableTypeInternal gsClass, SingleServingGosuClassLoader loader) {
   Class<?> result = loader._defineClass(gsClass);
   // Define all inner classes and blocks, too. Otherwise, they eventually could be loaded through
   // URL handler.
   for (int i = 0; i < gsClass.getBlockCount(); i++) {
     defineClassInSingleServingLoader((ICompilableTypeInternal) gsClass.getBlock(i), loader);
   }
   if (gsClass.getInnerClasses() != null) {
     for (IType inner : gsClass.getInnerClasses()) {
       try {
         defineClassInSingleServingLoader((ICompilableTypeInternal) inner, loader);
       } catch (LinkageError le) {
         // ignore case when we've already loaded the class
       }
     }
   }
   return result;
 }