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Set up a Policy File to Grant the Required Permission

A policy file is an ASCII text file and can be composed via a text editor, or via the graphical Policy Tool utility demonstrated in this section. Using the Policy Tool saves typing and eliminates the need for you to know the required syntax of policy files, thus reducing errors.

You will use the Policy Tool to create a policy file named mypolicy. In it, you will add a policy entry that grants code from the directory where WriteFile.class is stored permission to write the writetest file.

The steps are the following:

  1. Start Policy Tool

  2. Grant the Required Permission

  3. Save the Policy File


Note for Solaris users: The steps illustrate creating the policy file for a Windows system. The steps are exactly the same if you are working on a Solaris system. Where the text says to store the policy file in the C:\Test directory, you can store it in another directory. The examples in See the Policy File Effects later in this lesson and in the Quick Tour of Controlling Applications(in the Java Security 1.2 trail) lesson assume you stored it in the ~/test directory.


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