org.apache.tika.detect.DefaultDetector (Composite Detector):
  org.apache.tika.detect.OverrideDetector
  org.apache.tika.parser.microsoft.POIFSContainerDetector
  org.apache.tika.parser.pkg.ZipContainerDetector
  org.gagravarr.tika.OggDetector
  org.apache.tika.mime.MimeTypes