}
                return OptionalEntity.empty();
            }
            if (logger.isDebugEnabled()) {
                logger.debug("Logged in. {}", context);
            }
            return OptionalEntity.of(ldapUser);
        } catch (final Exception e) {
            logger.debug("Login failed.", e);
        }
        return OptionalEntity.empty();
    }

import org.codelibs.opensearch.runner.OpenSearchRunner;
import org.codelibs.opensearch.runner.OpenSearchRunner.Configs;
import org.dbflute.exception.IllegalBehaviorStateException;
import org.dbflute.optional.OptionalEntity;
import org.lastaflute.core.message.UserMessages;
import org.lastaflute.di.exception.ContainerInitFailureException;
import org.opensearch.OpenSearchException;
import org.opensearch.OpenSearchStatusException;