always raise an AttributeError as fallback when reading from a java module

Author: timfel

graalpython/lib-graalpython/java.py

@@ -61,7 +61,8 @@ def __getattr__(key, default=None):
                     try:
                         return type(modname + key)
                     except KeyError:
-                        raise AttributeError(key)
+                        pass
+            raise AttributeError(key)
         return __getattr__
 
     @staticmethod