title: system-properties in JBoss AS7
body: <p>In the <code>standlone.xml</code> file in JBoss AS7, I have set the variable <code>my.dir</code> in system properties as </p>
  
  <pre><code>&lt;system-properties&gt;
  &lt;property name="my.dir" value="D:\\mylocation"
  &lt;/system-properties&gt;
  </code></pre>
  
  <p>Now I am trying to use this variable to specify the location of the keystore file in the standalone.xml in the following way </p>
  
  <pre><code>certificate-key-file="${my.dir}\cert\mycert.keystore"
  </code></pre>
  
  <p>However, while starting JBoss, I am getting <code>IO exception</code> as JBoss is not able to locate the path. Could you please let me know if I am doing anything wrong? </p>