code: public static KeyManager[] getKeyManagers() throws InitializationException {
  		String file = System.getProperty("javax.net.ssl.keyStore");
  		String pass = System.getProperty("javax.net.ssl.keyStorePassword");
  
  		if (file == null || pass == null) {
  			throw new InitializationException("javax.net.ssl.keyStore / "
  					+ "javax.net.ssl.keyStorePassword not set");
  		}
  
  		return getKeyManagers(file, pass);
  	}
docs: Creates {@link KeyManager} instances based on the javax.net.ssl.keyStore
  and javax.net.ssl.keyStorePassword environment variables.
  
  @return an array of {@link KeyManager} instances.
  @throws InitializationException