Can I access LDAP (AD) via JNDI in a Blackberry App?

I want to authenticate a user against our Active Directory database on a BlackBerry mobile app. I've written J2EE apps that authenticate开发者_如何学编程 against AD using JNDI (javax.naming). I've also written BlackBerry apps that do local data access and remote JSON interaction.

In this app, I need to limit access to the back-end servlet based on their AD access. I do not have access to change the servlet, so I can't pass authentication credentials to it.

Thanks in advance for your input.