Translatable is for integration with the UnifiedClassLoader in JBoss 4.x and with the RealClassLoader in JBoss 5. Basically, they will call AspectManager.transform() once a class is loaded. So basically Translatable means it is a JBoss AS classloader.

We haven't really done many tests with clever classloader stuff outside of JBoss, so I guess this is why we haven't picked this up before. I think the method shown should be this instead:

 public ClassPool findClassPool(ClassLoader cl)
 {
 if (!(cl instanceof Translatable))
 {
 // findClassPool has problems with boot and system classes.
 if (cl == null)
 {
 return registerClassLoader(SecurityActions.getContextClassLoader());
 }
 }
 return registerClassLoader(cl);
 }


For boot and system classes Class.getClassLoader() will return null, and I think that might be what the comment refers to?