if (type == int.class) {
            final Integer i = IntegerConversionUtil.toInteger(o);
            if (i != null) {
                return i;
            }
            return Integer.valueOf(0);
        } else if (type == double.class) {
            final Double d = DoubleConversionUtil.toDouble(o);
            if (d != null) {
                return d;
            }
            return Double.valueOf(0);

    @BeforeEach
    void setUp() {
        handler = new Handler(null);
    }

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create handler with null context")
        void testConstructorWithNullContext() {
            // When
            Handler testHandler = new Handler(null);

            // Then
            assertNotNull(testHandler);

    if (entry != null && entry.key == key) {
      return entry.value;
    }
    entry = cacheEntry2;
    if (entry != null && entry.key == key) {
      // Promote second cache entry to first so the access pattern
      // [K1, K2, K1, K3, K1, K4...] still hits the cache half the time.
      addToCache(entry);
      return entry.value;
    }
    return null;
  }

  @Override
  void clearCache() {
    super.clearCache();

    protected void assertObjectNotNull(String variableName, Object value) {
        if (variableName == null) {
            String msg = "The value should not be null: variableName=null value=" + value;
            throw new IllegalArgumentException(msg);
        }
        if (value == null) {
            String msg = "The value should not be null: variableName=" + variableName;
            throw new IllegalArgumentException(msg);
        }

            assertEquals("0", getResultMessageMethod.invoke(null, 0), "Should return '0' for success");
            assertEquals("DCERPC_BIND_ERR_ABSTRACT_SYNTAX_NOT_SUPPORTED", getResultMessageMethod.invoke(null, 1),
                    "Should return correct message for error 1");
            assertEquals("DCERPC_BIND_ERR_PROPOSED_TRANSFER_SYNTAXES_NOT_SUPPORTED", getResultMessageMethod.invoke(null, 2),

        doUpdate(entity, null);
    }

    public void insertOrUpdate(UserInfo entity) {
        doInsertOrUpdate(entity, null, null);
    }

    public void insertOrUpdate(UserInfo entity, RequestOptionCall<IndexRequestBuilder> opLambda) {
        entity.asDocMeta().indexOption(opLambda);
        doInsertOrUpdate(entity, null, null);
    }

    public void delete(UserInfo entity) {

        doUpdate(entity, null);
    }

    public void insertOrUpdate(CrawlingInfoParam entity) {
        doInsertOrUpdate(entity, null, null);
    }

    public void insertOrUpdate(CrawlingInfoParam entity, RequestOptionCall<IndexRequestBuilder> opLambda) {
        entity.asDocMeta().indexOption(opLambda);
        doInsertOrUpdate(entity, null, null);
    }

        doUpdate(entity, null);
    }

    public void insertOrUpdate(RoleType entity) {
        doInsertOrUpdate(entity, null, null);
    }

    public void insertOrUpdate(RoleType entity, RequestOptionCall<IndexRequestBuilder> opLambda) {
        entity.asDocMeta().indexOption(opLambda);
        doInsertOrUpdate(entity, null, null);
    }

    public void delete(RoleType entity) {

        while ((queuedTask = executingTaskQueue.nextTask) != null
            && (queuedExecutor = executingTaskQueue.nextExecutor) != null) {
          executingTaskQueue.nextTask = null;
          executingTaskQueue.nextExecutor = null;
          queuedExecutor.execute(queuedTask);
        }
      } finally {
        // Null out the thread field, so that we don't leak a reference to Thread, and so that

    notEqualObject1 = new ValidTestObject(0, 2);
  }

  /** Test null reference yields error */
  public void testAddNullReference() {
    assertThrows(NullPointerException.class, () -> equalsTester.addEqualityGroup((Object) null));
  }

  /** Test equalObjects after adding multiple instances at once with a null */
  public void testAddTwoEqualObjectsAtOnceWithNull() {
    assertThrows(