code: public void addDestinationActiveParticipant(String userId, String altUserId, String userName, String networkId, boolean isRequestor)
  	{
  		addActiveParticipant(
  				userId, 
  				altUserId, 
  				userName, 
  				isRequestor, 
  				Collections.singletonList(new DICOMActiveParticipantRoleIdCodes.Destination()),
  				networkId);
  	}
docs: Adds an Active Participant block representing the destination participant
  @param userId The Active Participant's User ID
  @param altUserId The Active Participant's Alternate UserID
  @param userName The Active Participant's UserName
  @param networkId The Active Participant's Network Access Point ID
  @param isRequestor Whether the participant represents the requestor