Class<?> clazz = obj.getClass();
        while (clazz != null) {
            try {
                java.lang.reflect.Field field = clazz.getDeclaredField(fieldName);
                field.setAccessible(true);
                return field.get(obj);
            } catch (NoSuchFieldException e) {
                // Try parent class
                clazz = clazz.getSuperclass();
            }
        }

        // Package-private setter for attempt number
        try {
            java.lang.reflect.Field field = SmbOperationException.class.getDeclaredField("attemptNumber");
            field.setAccessible(true);
            field.set(this, attemptNumber);
        } catch (Exception e) {
            // Ignore
        }
    }

    private static String formatMessage(ErrorCode errorCode, String message) {

        // ## Test that protected constructor can be accessed via reflection ##

        // ## Act ##
        final Constructor<Curl> constructor = Curl.class.getDeclaredConstructor();
        constructor.setAccessible(true);
        final Curl instance = constructor.newInstance();

        // ## Assert ##
        assertNotNull(instance);
    }

    @Test
    public void test_TraceMethodInEnum() {

        if (method.getDeclaringClass().equals(TypeVariableImpl.class)) {
          try {
            method.setAccessible(true);
          } catch (AccessControlException e) {
            // OK: the method is accessible to us anyway. The setAccessible call is only for
            // unusual execution environments where that might not be true.
          }
          builder.put(method.getName(), method);

        // Force internal field to null via reflection to exercise defensive branch
        Field field = SecurityBlob.class.getDeclaredField("b");
        field.setAccessible(true);
        field.set(blob, null);

        // Act & Assert
        assertEquals(0, blob.length(), "length() should return 0 when internal array is null");
    }

    @Spy

        try {
            java.lang.reflect.Field transportContextField = NtlmServlet.class.getDeclaredField("transportContext");
            transportContextField.setAccessible(true);
            transportContextField.set(ntlmServlet, cifsContext);
        } catch (Exception e) {
            throw new RuntimeException("Failed to inject mock CIFSContext", e);
        }

                if ("org.eclipse.sisu.inject.LazyBeanEntry"
                        .equals(entry.getClass().getName())) {
                    Field f = entry.getClass().getDeclaredField("binding");
                    f.setAccessible(true);
                    Object b = f.get(entry);
                    return !(b instanceof ProviderInstanceBinding<?> pib)
                            || !(pib.getUserSuppliedProvider() instanceof BridgeProvider<?>);

   *
   * @param instance the instance to invoke {@code method} on, or null if {@code method} is static
   */
  public void testMethodParameter(@Nullable Object instance, Method method, int paramIndex) {
    method.setAccessible(true);
    testParameter(instance, invokable(instance, method), paramIndex, method.getDeclaringClass());
  }

  /**
   * Verifies that {@code ctor} produces a {@link NullPointerException} or {@link

        assertFalse(nodeStatusRequest.isBroadcast);

        // Verify config is set through parent constructor
        Field configField = NameServicePacket.class.getDeclaredField("config");
        configField.setAccessible(true);
        assertSame(mockConfig, configField.get(nodeStatusRequest));
    }

    @Test
    void writeBodyWireFormat_shouldTemporarilySetHexCodeToZero() {
        // Arrange

     * Set field value with cached accessibility.
     */
    private void setFieldValue(Object bean, Field field, Object value) throws IllegalAccessException {
        if (!field.canAccess(bean)) {
            field.setAccessible(true);
        }
        field.set(bean, value);
    }

    /**
     * Clear all caches. Useful for testing or memory management.
     */
    public static void clearCaches() {