+import static org.opendaylight.controller.sal.rest.api.Draft02.RestConfModule.ERRORS_CONTAINER_QNAME;
+import static org.opendaylight.controller.sal.rest.api.Draft02.RestConfModule.ERROR_APP_TAG_QNAME;
+import static org.opendaylight.controller.sal.rest.api.Draft02.RestConfModule.ERROR_INFO_QNAME;
+import static org.opendaylight.controller.sal.rest.api.Draft02.RestConfModule.ERROR_LIST_QNAME;
+import static org.opendaylight.controller.sal.rest.api.Draft02.RestConfModule.ERROR_MESSAGE_QNAME;
+import static org.opendaylight.controller.sal.rest.api.Draft02.RestConfModule.ERROR_TAG_QNAME;
+import static org.opendaylight.controller.sal.rest.api.Draft02.RestConfModule.ERROR_TYPE_QNAME;
+import static org.opendaylight.controller.sal.rest.api.Draft02.RestConfModule.NAMESPACE;
+
+import com.google.common.base.Charsets;
+import com.google.common.base.Strings;
+import com.google.common.collect.ImmutableList;
+import com.google.gson.stream.JsonWriter;
+