Thread.sleep(1000); // Wait before creating next index (following existing test pattern)
        suggester.createNextIndex();
        Thread.sleep(100);

        // Verify that createNextIndex completed without exceptions
        // The update alias should now point to the new index
        final String updateAlias = suggester.getIndex() + ".update";

                        successCount.incrementAndGet();
                    }
                } catch (Exception e) {
                    synchronized (exceptions) {
                        exceptions.add(e);
                    }
                } finally {
                    endLatch.countDown();
                }
            });
        }

        // Start all threads

        assertNotSame(supplied, got, "Zero-sized cache must not return the released instance");
    }

    // Edge: releasing null must be a no-op without exceptions
    @Test
    @DisplayName("releaseBuffer(null) is a no-op and does not throw")
    void releaseNullIsNoop() {
        BufferCacheImpl impl = new BufferCacheImpl(1, 4);

        verify(smbTree).unwrap(CustomSmbTree.class);
    }

    /**
     * Test for unwrap() method throwing exception.
     * Verifies that unwrap can throw exceptions when appropriate.
     */
    @Test
    void testUnwrap_throwsException() {
        when(smbTree.unwrap(any())).thenThrow(new ClassCastException("Cannot unwrap to specified type"));

 *   <li>Reading content as plain text if all other methods fail</li>
 *   <li>Applying post-extraction filters</li>
 *   <li>Handling Tika exceptions, including zip bomb exceptions</li>
 * </ul>
 *
 * <p>
 * The class also supports configuration options such as:
 * </p>
 * <ul>
 *   <li>Output encoding</li>

 * The class provides methods to check if an input stream is a valid sitemap,
 * and to parse an input stream into a {@link SitemapSet} object.
 * It uses SAX parser for XML sitemaps and XML sitemap indexes,
 * and handles potential exceptions during parsing.
 * The class also includes inner classes for handling XML sitemap and sitemap index parsing.
 */
public class SitemapsHelper {
    private static final Logger logger = LogManager.getLogger(SitemapsHelper.class);

                    conn.connect();
                    successCount.incrementAndGet();
                } catch (Exception e) {
                    synchronized (exceptions) {
                        exceptions.add(e);
                    }
                    failureCount.incrementAndGet();
                } finally {
                    doneLatch.countDown();
                }

                            }
                        }
                    } catch (Exception e) {
                        synchronized (exceptions) {
                            exceptions.add(e);
                        }
                    }
                }
            });
        }

        // Start all threads
        for (Thread thread : threads) {

import org.apache.lucene.queryparser.classic.ParseException;
import org.apache.lucene.queryparser.classic.QueryParser.Operator;
import org.apache.lucene.queryparser.ext.ExtendableQueryParser;
import org.apache.lucene.queryparser.ext.Extensions.Pair;
import org.apache.lucene.search.PhraseQuery;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.TermQuery;
import org.codelibs.fess.Constants;

     * Verify that all methods can be called with null buffers without
     * throwing exceptions. This test ensures robustness of the implementation.
     */
    @Test
    void methodsHandleNullBuffersGracefully() {
        // Arrange
        TransWaitNamedPipeResponse resp = new TransWaitNamedPipeResponse();
        // Act & Assert - no exceptions should be thrown
        assertDoesNotThrow(() -> resp.writeSetupWireFormat(null, 0));