Marlon Trujillo - 2017-10-04

This should be handled by "Debug" static field....:

public interface Modbus {

  /**
   * JVM flag for debug mode. Can be set passing the system property
   * net.wimpi.modbus.debug=false|true (-D flag to the jvm).
   */
  public static final boolean debug = "true".equals(System.getProperty("net.wimpi.modbus.debug"));

  ...
}