package com.liferay.portal.upgrade.v5_2_3;
import com.liferay.portal.kernel.upgrade.BaseUpgradePortletPreferences;
<BUG>import com.liferay.portal.kernel.upgrade.util.UpgradeTable;
import com.liferay.portal.kernel.upgrade.util.UpgradeTableFactoryUtil;</BUG>
import com.liferay.portal.kernel.util.StringBundler;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.Validator;

package com.liferay.portal.upgrade.v5_2_3;
import com.liferay.portal.kernel.upgrade.BaseUpgradePortletPreferences;
import com.liferay.portal.kernel.util.StringBundler;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.Validator;
