lastResponseData = null;
            returnedResultData = null;
            throwException = false;
        }
    }

    /**
     * Another concrete implementation for testing different scenarios
     */
    public static class NameTrackingTransformer extends AbstractTransformer {
        private final List<String> nameHistory = new ArrayList<>();

        @Override

* UPDATE: 18-April-2005

  We cannot take the approach outlined below of detecting which remote
  repositories are "really" offline, since offline mode is more of a behavior,
  and this will lead to counter-intuitive results. A different feature may exist
  unimplemented, which is to detect when the network is down and provide better
  feedback for that case. However, when offline mode is declared, nothing

  }

  @GwtIncompatible // different overflow behavior; could probably be made to work by using ~~
  public void testConcat_overflow_negative() {
    int dim1 = 1 << 16;
    int dim2 = 1 << 15;
    assertThat(dim1 * dim2).isLessThan(0);
    testConcatOverflow(dim1, dim2);
  }

  @GwtIncompatible // different overflow behavior; could probably be made to work by using ~~

            System.arraycopy(name.getBytes("US-ASCII"), 0, src, srcIndex + 1 + (i * 18), 16);
            src[srcIndex + 1 + (i * 18) + 15] = (byte) i; // Different hex codes
            src[srcIndex + 1 + (i * 18) + 16] = 0x04; // Active flag
        }

        // MAC address
        int macOffset = srcIndex + 1 + (18 * numNames);

        // Now set a new instance
        LogStream.setInstance(testStream);
        LogStream instance2 = LogStream.getInstance();
        assertNotNull(instance2);

        // Should be different instances since setInstance replaces the previous one
        assertNotSame(instance1, instance2);
        // Getting instance again should return the same as instance2
        assertSame(instance2, LogStream.getInstance());

   * invokeAll/invokeAny} throwing RejectedExecutionException, although a subset of the tasks may
   * already have been executed.
   *
   * @since 32.0.0 (taking the place of a method with a different return type from 15.0)
   */
  public static ListeningScheduledExecutorService sameThreadScheduledExecutor() {
    return new SameThreadScheduledExecutorService();
  }

import org.codelibs.fess.crawler.entity.ResponseData;

/**
 * RegexRule is a rule implementation that uses regular expressions to match against the ResponseData.
 * It allows defining multiple regular expressions for different fields of the ResponseData.
 * The rule can be configured to require all regular expressions to match (allRequired = true) or
 * only one of them (allRequired = false). It also supports a default rule that always matches.
 *

        final InputStream in2 = new ByteArrayInputStream("data2".getBytes());

        // First call
        extractor.testValidateInputStream(in1);

        // Second call with different stream
        extractor.testValidateInputStream(in2);

        // Third call with null should still throw
        try {
            extractor.testValidateInputStream(null);

            // Accept files in /share/folder/ that are text files
            return path.equals("/share/folder/") && name != null && name.endsWith(".txt");
        };

        // Act & Assert: test with different file names
        assertTrue(filter.accept(mockDir, "document.txt"), "Should accept .txt files in the correct path");
        assertFalse(filter.accept(mockDir, "image.png"), "Should reject non-.txt files");

But you should first read the **Tutorial - User Guide** (what you are reading right now).