docs: protected void deleteEmptyRepositoryDirs() {
  		File[] directories = listRepositoryDirs();
  		
  		//determine if the server/controller instance directory is empty
  		for(int i = 0; i < directories.length; i++){
  			// This is a directory we should not delete
  			boolean currentDir = ivSubDirectory != null && ivSubDirectory.compareTo(directories[i])==0;
  			//if a server instance directory does not have a key in parentFilesMap, then it does not have any files 
  			if (debugLogger.isLoggable(Level.FINE) && isDebugEnabled())
  				debugLogger.logp(Level.FINE, thisClass, "deleteEmptyRepositoryDirs", "Instance directory name (controller): " + directories[i].getAbsolutePath());
  			
  			//now look for empty servant directories
  			File[] childFiles = AccessHelper.listFiles(directories[i], subprocFilter) ;
  			for (File curFile : childFiles) {
  				if (debugLogger.isLoggable(Level.FINE) && isDebugEnabled())
  					debugLogger.logp(Level.FINE, thisClass, "deleteEmptyRepositoryDirs", "Servant directory name: " + curFile.getAbsolutePath());
  				if (!currentDir && !parentFilesMap.containsKey(curFile)) {
  					if (debugLogger.isLoggable(Level.FINE) && isDebugEnabled())
  		    			debugLogger.logp(Level.FINE, thisClass, "deleteEmptyRepositoryDirs", "Found an empty servant directory:  " + curFile);
  					deleteDirectory(curFile);
  				} else {
  					incrementFileCount(curFile);
  				}
  			}
  			//delete directory if empty
  			if (!currentDir && !parentFilesMap.containsKey(directories[i])) {
  				if (debugLogger.isLoggable(Level.FINE) && isDebugEnabled())
  					debugLogger.logp(Level.FINE, thisClass, "listRepositoryFiles", "Found an empty directory:  " + directories[i]);
  				deleteDirectory(directories[i]);
  			}
  		}
  	}