} catch (final SuggesterException e) {
            // Re-throw SuggesterException with original message
            throw e;
        } catch (final Exception e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Failed to create and switch to next index: baseIndex={}", index, e);
            }
            throw new SuggesterException("Failed to create and switch to next index: " + index, e);

     * @throws SuggesterException if an I/O error occurs during the creation of the bulk line
     */
    public static String createBulkLine(final String index, final String type, final SuggestItem item) {
        if (item == null || item.getId() == null || item.getText() == null) {
            throw new SuggesterException("Invalid SuggestItem: item, id, or text is null");
        }

import org.codelibs.fess.suggest.analysis.SuggestAnalyzer;
import org.codelibs.fess.suggest.converter.ReadingConverter;
import org.codelibs.fess.suggest.entity.SuggestItem;
import org.codelibs.fess.suggest.exception.SuggesterException;
import org.codelibs.fess.suggest.index.contents.querylog.QueryLog;
import org.codelibs.fess.suggest.normalizer.Normalizer;
import org.codelibs.fess.suggest.util.SuggestUtil;
import org.opensearch.OpenSearchStatusException;

                    deferred.reject(new SuggesterException("Search failure. Failed shards num:" + searchResponse.getFailedShards()));
                } else {
                    deferred.resolve(createResponse(searchResponse));
                }
            }

            @Override
            public void onFailure(final Exception e) {
                deferred.reject(new SuggesterException(e.getMessage(), e));
            }

        boolean exceptionThrown = false;
        String exceptionMessage = null;
        try {
            suggester.switchIndex();
            fail("Should throw SuggesterException for unexpected update indices count");
        } catch (SuggesterException e) {
            exceptionThrown = true;
            exceptionMessage = e.getMessage();
            // Check if the message contains the expected text

                Thread.sleep(100);
            } catch (InterruptedException ignore) {}
            deferred.reject(new SuggesterException("test"));
        });
        th.start();

        try {
            deferred.promise().getResponse(5, TimeUnit.SECONDS);
            fail();
        } catch (SuggesterException e) {
            assertEquals("An error occurred during the deferred computation.", e.getMessage());
        }
    }

import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.suggest.exception.SuggestSettingsException;
import org.codelibs.fess.suggest.exception.SuggesterException;
import org.opensearch.action.get.GetResponse;
import org.opensearch.common.collect.Tuple;
import org.opensearch.common.xcontent.XContentType;
import org.opensearch.common.xcontent.json.JsonXContent;

import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicLong;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.suggest.exception.SuggesterException;
import org.codelibs.fess.suggest.settings.SuggestSettings;
import org.codelibs.fess.suggest.util.SuggestUtil;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.action.search.SearchResponse;

import org.codelibs.fess.suggest.Suggester;
import org.codelibs.fess.suggest.converter.ReadingConverter;
import org.codelibs.fess.suggest.entity.SuggestItem;
import org.codelibs.fess.suggest.exception.SuggesterException;
import org.codelibs.fess.suggest.normalizer.Normalizer;
import org.codelibs.fess.suggest.settings.AnalyzerSettings;
import org.codelibs.fess.suggest.settings.SuggestSettings;