How to change a folder from unmodified to modified
<p>I have a situation where there are many different files in a folder. If any file inside that folder is modified, I want to changed the folder from unmodified to modified.</p>

<p>When a file inside the folder is changed, I could call something like this
theFolder.setAsModified();
But there is no such method. Is there any way to do this?</p>

<p>When the contents of the folder is modified, the folder.lastModified() returns the same old value (in Long value which is ms). I would like folder.lastModified() to return a new value (which would be a slightly greater number since it is more recent) when its contents are modified.</p>

<p>Thanks.</p>
