title: How to add multiple values to a key in Properties file (Eclipse)?
body: <p>I need to add a in a properties file keys that contain multiple values. </p>
  
  <p>Is it possible to do this directly using Eclipse default libraries ? </p>
  
  <p>Ex: </p>
  
  <pre><code>prop1=value1,value2,value3,value4
  prop2=value1,value2,value3,value4
  </code></pre>