code: public MwDumpFile getMostRecentDump(DumpContentType dumpContentType) {
  		WmfDumpFileManager wmfDumpFileManager = getWmfDumpFileManager();
  		if (wmfDumpFileManager == null) {
  			return null;
  		} else {
  			MwDumpFile result = wmfDumpFileManager
  					.findMostRecentDump(dumpContentType);
  			if (result == null) {
  				logger.warn("Could not find any dump of type "
  						+ dumpContentType.toString() + ".");
  			}
  			return result;
  		}
  	}
docs: Returns a handler for the most recent dump file of the given type that is
  available (under the current settings), or null if no dump file of this
  type could be retrieved.
  
  @param dumpContentType
  the type of the dump, e.g., {@link DumpContentType#JSON}
  @return the most recent dump, or null if none was found