How to use org.jets3t.service.acl.gs

for (GrantAndPermission gp : acl.getGrantAndPermissions()) {
 Permission perm = gp.getPermission();
 GranteeInterface grantee = gp.getGrantee();

  @Override
  public String toString() {
    return "UserById [id=" + this.getIdentifier()
      + (this.getDisplayName() != null ? ", Name=" + this.getDisplayName() : "")
      + "]";
  }
}

  @Override
  public String toString() {
    return "UserByEmail [email=" + getIdentifier()
      + (name != null ? ", name=" + getName() : "")
      + "]";
  }
}

  @Override
  public String toString() {
    return "GroupByEmail [" + this.getIdentifier()
      + (name != null ? ", name=" + getName() : "")
      + "]";
  }
}

  @Override
  public String toString() {
    return "GroupById [" + this.getIdentifier()
      + (name != null ? ", name=" + getName() : "")
      + "]";
  }
}

public GroupByIdGrantee(String identifier, String name) {
  super(identifier);
  setName(name);
}

public GroupByEmailAddressGrantee(String email, String name) {
  super(email);
  setName(name);
}

  @Override
  public String toString() {
    return "GroupByDomain [" + this.getIdentifier() + "]";
  }
}

public UserByEmailAddressGrantee(String emailAddress, String name) {
  super(emailAddress);
  setName(name);
}

public void setName(String name) {
  setDisplayName(name);
}

public UserByIdGrantee(String identifier, String name) {
  super(identifier);
  setName(name);
}

public String getName() {
  return getDisplayName();
}

  @Override
  public String toString() {
    return "UserById [id=" + this.getIdentifier()
      + (this.getDisplayName() != null ? ", Name=" + this.getDisplayName() : "")
      + "]";
  }
}

  @Override
  public String toString() {
    return "UserByEmail [email=" + getIdentifier()
      + (name != null ? ", name=" + getName() : "")
      + "]";
  }
}

  @Override
  public String toString() {
    return "GroupByEmail [" + this.getIdentifier()
      + (name != null ? ", name=" + getName() : "")
      + "]";
  }
}

  @Override
  public String toString() {
    return "GroupById [" + this.getIdentifier()
      + (name != null ? ", name=" + getName() : "")
      + "]";
  }
}

public GroupByIdGrantee(String identifier, String name) {
  super(identifier);
  setName(name);
}

public GroupByEmailAddressGrantee(String email, String name) {
  super(email);
  setName(name);
}

  @Override
  public String toString() {
    return "GroupByDomain [" + this.getIdentifier() + "]";
  }
}

public UserByEmailAddressGrantee(String emailAddress, String name) {
  super(emailAddress);
  setName(name);
}