docs: public void createPropertiesFile(String pathToFile, boolean overwrite) throws IOException {
  		final File file = new File(pathToFile);
  		if (file.exists()) {
  			if (overwrite) {
  				file.delete();
  			} else {
  				throw new RuntimeException("File " + pathToFile + " exists and overwriting is not allowed");
  			}
  		}
  		final Properties defaultProps = new Properties();
  		defaultProps.putAll(this.defaultData);
  		try (final OutputStream out = new FileOutputStream(file)) {
  			defaultProps.store(out, "Default file created by Flink's ParameterUtil.createPropertiesFile()");
  		}
  	}