import com.liferay.portal.kernel.exception.SystemException;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.StringUtil;
<BUG>import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.model.User;</BUG>
import com.liferay.portal.service.UserLocalServiceUtil;
import java.util.ArrayList;
import java.util.Collection;

import com.liferay.portal.kernel.exception.SystemException;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.StringUtil;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.model.ContactConstants;
import com.liferay.portal.model.User;
import com.liferay.portal.service.UserLocalServiceUtil;
import java.util.ArrayList;
import java.util.Collection;
