Error loading java class.

I'm tryng to use a simple java class in internal jvm.
When I try to load it I get a lot of error like :
0/0 MailHandler:7: cannot resolve symbol
0/0 symbol : class Folder
0/0 location: package mail
0/0 import javax.mail.Folder;
What did I forget ?
I'm using Oracle 10.2.0.3 and the required classes seems to be into correctly loaded.
Tks
Tullio

Hi,
Check whether the class is available in the schema or in the sys schema with a public synonym
select dbms_java.longname(object_name) from user_objects;
select dbms_java.longname(object_name) from all_objects;

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