import static com.google.common.base.Preconditions.checkState;
import com.google.common.base.MoreObjects;
-import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
+import java.util.Optional;
import java.util.Set;
import javax.annotation.Nullable;
import org.opendaylight.mdsal.binding.generator.api.BindingRuntimeTypes;
*
* @param schema Resolved parent choice schema
* @param childClass Class representing case.
- * @return Optionally a resolved case schema, absent if the choice is not legal in
+ * @return Optionally a resolved case schema,.empty if the choice is not legal in
* the given context.
* @throws IllegalArgumentException If supplied class does not represent case.
*/