import org.apache.ambari.server.state.repository.VersionDefinitionXml;
import org.apache.ambari.server.state.stack.upgrade.RepositoryVersionHelper;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang.StringUtils;
<BUG>import org.apache.commons.lang.math.NumberUtils;
import com.google.common.collect.Sets;</BUG>
import com.google.inject.Inject;
import com.google.inject.Provider;
@StaticallyInject

import org.apache.ambari.server.state.repository.VersionDefinitionXml;
import org.apache.ambari.server.state.stack.upgrade.RepositoryVersionHelper;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.math.NumberUtils;
import org.codehaus.jackson.node.ArrayNode;
import org.codehaus.jackson.node.JsonNodeFactory;
import org.codehaus.jackson.node.ObjectNode;
import com.google.common.collect.Sets;
import com.google.inject.Inject;
import com.google.inject.Provider;
@StaticallyInject
