title: How to convert pure java String which includes groovy expression in runtime?
body: <p>Let's say if we defined property value which includes groovy expression in gradle.properties file: <br /></p>
  
  <pre><code>databaseFile = ${System.properties['user.home']}/.derby
  </code></pre>
  
  <p>Later when I want to access this property value in gradle build script, <br />
  it seems that it was loaded as pure java String in groovy runtime without string evaluation.</p>
  
  <p>Are there any methods that could help me evaluate pure java String before I get the property value via gradle dsl? <br/>
  Or I have to evaluate the java String I've got in runtime? But how to make that?</p>
  
  <p>Thank you~</p>