HostComponent[] hc = experiment.getHosts();
HostComponent[] hc = experiment.getHostComponents();
  private boolean isHostNameUnique(String name) {    HostComponent[] hc = experiment.getHosts();    boolean isUnique = true;    for (int i = 0; i < hc.length; i++)       if (name.equals(hc[i].getShortName()))        return false;    return true;  }