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# The Ground Rules

> This lesson discusses some common issues that help you to write a service provider that conforms with the JNDI specifications. These issues concern parameter passing, environment properties, names, threads, and security.

> If you have reviewed all of the other trails in this tutorial, then you likely have a fairly good understanding of these common issues. This lesson explains these issues from the perspective of the service provider developer and is useful as a refresher.

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