Simples Assim

1) Create the X4JuliSample.java file:

import java.util.logging.Logger;

public final class X4JuliSample {

  public static void main(final String[] args) {
    final Logger logger = Logger.getLogger(X4JuliSample.class.getName());

    logger.info("Hello World!");
  }

  private X4JuliSample() {
  }

}

3) Set the java.util.logging.manager system property to org.x4juli.X4JuliLogManager.

4) Launch the X4JuliSample class.

http://www.x4juli.org/