code: private static void logVersionInformation() {
  		String version = JobManager.class.getPackage().getImplementationVersion();
  		// if version == null, then the JobManager runs from inside the IDE (or somehow not from the maven build jar)
  		String revision = "<unknown>";
  		try {
  			Properties properties = new Properties();
  			InputStream propFile = JobManager.class.getClassLoader().getResourceAsStream(".version.properties");
  			if (propFile != null) {
  				properties.load(propFile);
  				revision = properties.getProperty("git.commit.id.abbrev");
  			}
  		} catch (IOException e) {
  			LOG.info("Cannot determine code revision. Unable ro read version property file.");
  		}
  		LOG.info("Starting Stratosphere JobManager (Version: " + version + ", Rev:" + revision + ")");
  	}
docs: Log Stratosphere version information.