import android.text.TextUtils;
import com.waz.api.Self;
import com.waz.api.UsernameValidation;
import com.waz.api.Usernames;
import com.waz.api.ValidatedUsernames;
<BUG>import com.waz.zclient.ZApplication;
</BUG>
import com.waz.zclient.core.api.scala.ModelObserver;
import com.waz.zclient.utils.StringUtils;
import java.util.ArrayList;

import android.text.TextUtils;
import com.waz.api.Self;
import com.waz.api.UsernameValidation;
import com.waz.api.Usernames;
import com.waz.api.ValidatedUsernames;
import com.waz.zclient.WireApplication;
import com.waz.zclient.core.api.scala.ModelObserver;
import com.waz.zclient.utils.StringUtils;
import java.util.ArrayList;
