Re: [Jython-dev] *loading: somehow last mail for this week - errata 2

[Samuele P. <pe...@in...>]

I apologize, I have written the last part of the last mail too quickly.

The (pseudo)code presented gives the idea, but it's a little bit buggy:

>  mapping:
>    we need the helper:
>
>     fromhier(jclass,classloader):
>      java11:
>       return jclass.classLoader == classloader or jclass.classLoader ==
None
>      java2:
>       try:
>        cl=jclass.classLoader
>       except <security>:
>        return 1
!special case cl is the java system classloader (null):
+       if cl==None:
+        return 1

>       if classloader == '<secured>':
>        return 0
!We don't need that.

>       try:
>        while 1:
>         if cl == classloader:
>          return 1

+         if classloader==None:
+             return 0

>         classloader = classloader.parent
>       except <security>:
>        pass
>       return 0

>    sys.classLoader is sys.classLoader
>    rtloader is the loader of Python runtime (Py.class.getClassLoader(),
>    '<secured>' if one cannot get it for security reasons in java2)
!Every class can ask for its own classloader no security problem at this
level :)

>
>    the_mapping(jclass):
>     if fromhier(jclass,rtloader) or fromhier(jclass,sys.classLoader):
>      return None
>     if jclass.classLoader is a load-set-classloader:
>      return it
>     return 'cannot incur in lazy loading'

regards, Samuele