} finally {
                    latch.countDown();
                }
            }).start();
        }

        latch.await(10, TimeUnit.SECONDS);
        assertFalse("No unexpected errors should occur during concurrent access", errorOccurred.get());
    }

    /**
     * Test that default groups and roles are preserved during lazy loading.
     */
    @Test

import org.dbflute.cbean.result.PagingResultBean;
import org.dbflute.optional.OptionalEntity;

import jakarta.annotation.Resource;

/**
 * Service class for managing failure URLs that occur during web crawling.
 * Provides functionality to store, retrieve, and manage failed crawling attempts
 * with their associated error information.
 */
public class FailureUrlService {

        assertTrue(result);
        assertEquals("No indices should be created with empty targets", 0, testClient.createdIndices.size());
        assertEquals("No reindex should occur with empty targets", 0, testClient.reindexPairs.size());
    }

    // ==========================================================================
    // reindexConfigIndices - atomic alias switching

        assertNotNull(result);
        assertTrue(result.contains("Session Id:"));
        assertNotNull(suggestJob.sessionId);
        assertEquals(15, suggestJob.sessionId.length());
        // Cache clearing may not always occur in test environment
        // The real behavior depends on the actual SuggestJob implementation
    }

    // Test execute method with failure
    @Test
    public void test_execute_failure() {

                    for (int j = 0; j < urlsPerThread; j++) {
                        // Access is synchronized internally in the actual implementation
                        // Here we just verify no concurrent modification exceptions occur
                        String url = "http://example.com/thread" + threadIndex + "/doc" + j;
                        // Simulate the synchronized access that happens in deleteDocument()

        boolBuilder.add(new TermQuery(new Term("title", "fess")), BooleanClause.Occur.MUST);
        boolBuilder.add(new PrefixQuery(new Term("content", "search")), BooleanClause.Occur.SHOULD);
        boolBuilder.add(new WildcardQuery(new Term("url", "*.html")), BooleanClause.Occur.MUST_NOT);
        BooleanQuery boolQuery = boolBuilder.build();
        BoostQuery boostQuery = new BoostQuery(boolQuery, 5.5f);

        // This test verifies that ProtwordsUpdater constructor properly handles exceptions
        // The actual exception handling is tested by ensuring the updater can be created
        // and properly closed even when errors might occur

        protwordsFile.reload(null);

        // Test normal creation and cleanup of ProtwordsUpdater
        ProtwordsItem testItem = new ProtwordsItem(0, "testWord");

            }

        }
    }

    /**
     * Retrieves the access result data from an OpenSearch access result.
     * Handles exceptions that may occur during data retrieval.
     *
     * @param accessResult the access result to extract data from
     * @return the access result data, or null if retrieval fails
     */

    public void test_constructor() {
        // Test that constructor creates instance without error
        PurgeLogJob job = new PurgeLogJob();
        assertNotNull(job);
    }

    // Test multiple exceptions occur
    @Test
    public void test_execute_multipleExceptions() {
        // Create mock services with exceptions
        CrawlingInfoService crawlingInfoService = new CrawlingInfoService() {
            @Override

            final QueryBuilder queryBuilder = getQueryProcessor().execute(context, clause.query(), boost);
            if (queryBuilder != null) {
                switch (clause.occur()) {
                case MUST:
                    boolQuery.must(queryBuilder);
                    break;
                case SHOULD:
                    boolQuery.should(queryBuilder);
                    break;