title: How to store Apache Ant property value in file
body: <p>I need to modify a (xml-)file from Apache Ant. "loadfile" task allows to load the file's content in a property. But how to store the property's value back to a file after its (property) modification?</p>
  
  <p>Of course I could write custom task to perform this operation but I would like to know if there's some existing implementation.</p>