* Double#valueOf}.
   */
  private static @Nullable Double referenceTryParse(String input) {
    if (input.trim().length() < input.length()) {
      return null;
    }
    try {
      return Double.valueOf(input);
    } catch (NumberFormatException e) {
      return null;
    }
  }

  @GwtIncompatible // Doubles.tryParse
  private static void checkTryParse(String input) {

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.TestInfo;

public class ApiResultTest extends UnitFessTestCase {

    @Override
    protected boolean isUseOneTimeContainer() {
        return true;
    }

    @Override
    protected void setUp(TestInfo testInfo) throws Exception {
        super.setUp(testInfo);
        ComponentUtil.register(new SystemHelper(), "systemHelper");
    }

    Double.MAX_VALUE,
    Double.POSITIVE_INFINITY,
    Double.NaN,
    Float.MAX_VALUE,
  };

  /** The notion of equality used by AtomicDoubleArray */
  static boolean bitEquals(double x, double y) {
    return Double.doubleToRawLongBits(x) == Double.doubleToRawLongBits(y);
  }

  static void assertBitEquals(double x, double y) {
    assertEquals(Double.doubleToRawLongBits(x), Double.doubleToRawLongBits(y));
  }

        return null;
      }
      if (systemLoader != null) {
        try {
          return systemLoader.loadClass(FINALIZER_CLASS_NAME);
        } catch (ClassNotFoundException e) {
          // Ignore. Finalizer is simply in a child class loader.
          return null;
        }
      } else {
        return null;
      }
    }
  }

  /**

     */
    @Size(max = 1000)
    public String configId;

    /**
     * Returns the current page number for pagination.
     * This method provides access to the current page number for UI display.
     *
     * @return The current page number as a string
     */
    public String getCurrentPageNumber() {
        return pageNumber;
    }

    /**
     * Initializes the form with default null values.

   * process with an exit status of 1, indicating abnormal termination.
   */
  public static UncaughtExceptionHandler systemExit() {
    return new Exiter(Runtime.getRuntime()::exit);
  }

  @VisibleForTesting
  interface RuntimeWrapper {
    void exit(int status);
  }

  @VisibleForTesting

        assertEquals("word", item1.getInputValue());

        StopwordsItem item2 = new StopwordsItem(2, "");
        assertEquals("", item2.getInputValue());

        // Test with null input - should return empty string
        StopwordsItem item3 = new StopwordsItem(3, null);
        assertEquals("", item3.getInputValue());
    }

    @Test
    public void test_isUpdated() {
        // Test isUpdated method

    @Override
    public ReadLock readLock() {
      return readLock;
    }

    @Override
    public WriteLock writeLock() {
      return writeLock;
    }

    ///// CycleDetectingLock methods. /////

    @Override
    public LockGraphNode getLockGraphNode() {
      return lockGraphNode;
    }

    @Override
    public boolean isAcquiredByCurrentThread() {

    sepStopwatchA.set(null);
    GcFinalization.awaitClear(sepStopwatchRef.get());
    // Return a weak reference to the parallel ClassLoader. This is the reference that should
    // eventually become clear if there are no other references to the ClassLoader.
    return new WeakReference<ClassLoader>(sepLoader);
  }

  /**

         *
         * @return list of web configuration IDs, or null if none specified
         */
        protected List<String> getWebConfigIdList() {
            if (StringUtil.isNotBlank(webConfigIds)) {
                final String[] values = webConfigIds.split(",");
                return createConfigIdList(values);
            }
            return null;
        }

        /**