Change kerberos password using java

sample.java

/*
<dependency>
    <groupId>org.apache.directory.server</groupId>
    <artifactId>kerberos-client</artifactId>
    <version>2.0.0-M20</version>
</dependency>
*/

public static void main(String[] args) {
  KdcConfig config = KdcConfig.getDefaultConfig();
  config.setHostName("my-kdc.server.fred.com");
  config.setUseUdp(false);

  KdcConnection conn = new KdcConnection(config);
  conn.changePassword("user@DOMAIN.DE", "share123", "share322");
}

I could not make this work. Used a different approach