entityManager and systems tables

[Pat Peg]

I need to query some of the system tables of an oracle database from my application but when I try to execute a nativequery I keep getting a null pointer exception.

I even tried the simplest of queries such as

select count(*) from dba_users;

I am guessing this might have something to do with the rights that the entitymanager has but I don't know.

How could I query on system tables using entityManager?

Thanks

[James Sutherland]

Please include the stack trace.

[Pat Peg]

I found the problem, the user that the entityManager was logged in as lacked permissions to even see the table. Of course, now there is a new issue but I will post a separate topic.

Thanks