FindNewFiles, a Java class to poll a directory for new files

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Example usage:

...

FindNewFiles fnf;
ArrayList<java.util.File> newFiles;
         
   try {
          fnf = new FindNewFiles("/tmp"); /* or windows path */
       } catch(Exception e) {
          System.out.println("Exception: " + e.getMessage());
          return; 
       }

   while(true) {
         /* get files which were not in the directory the previous time method was invoked */
         newFiles = fnf.findNewFiles();
         if(newFiles != null)
         {
              /* then found new files */
              /* do something */
         }
 
            /* do something, perhaps sleep */
      }

...