docs: public static boolean containsUnpackedBootstrap(File directory) {
  		final String[] elements = SREConstants.SERVICE_SRE_BOOTSTRAP.split("/"); //$NON-NLS-1$
  		File serviceFile = directory;
  		for (final String element : elements) {
  			serviceFile = new File(serviceFile, element);
  		}
  		if (serviceFile.isFile() && serviceFile.canRead()) {
  			try (InputStream is = new FileInputStream(serviceFile)) {
  				try (BufferedReader reader = new BufferedReader(new InputStreamReader(is))) {
  					String line = reader.readLine();
  					if (line != null) {
  						line = line.trim();
  						if (!line.isEmpty()) {
  							return true;
  						}
  					}
  				}
  			} catch (Throwable exception) {
  				//
  			}
  		}
  		return false;
  	}