* Assume that equals uses the == optimization when appropriate, and that
       * it would check hash codes as an optimization when appropriate. If we
       * did these things, it would just make things worse for the most
       * performance-conscious users.
       */
      if (key.equals(candidateKey)) {
        return entry.getValue();
      }
    }
    return null;
  }

  @Override

    logger.error("Class not found: " + className, e);
}
```

## 🏗️ Architecture & Design Patterns

### Core Design Principles
CoreLib follows a **utility-class pattern** where most functionality is exposed through static methods:

- **Assertion-based validation** - All methods validate inputs using `AssertionUtil.assertArgumentNotNull()` and `AssertionUtil.assertArgumentNotEmpty()`

	for i := range newFormats {
		for j := range newFormats[i] {
			if newFormats[i][j] == nil {
				continue
			}
			if newFormats[i][j].ID != quorumFormat.ID {
				t.Fatal("Deployment id in the new format is lost")
			}
		}
	}
}

func BenchmarkInitStorageDisks256(b *testing.B) {
	benchmarkInitStorageDisksN(b, 256)
}

func BenchmarkInitStorageDisks1024(b *testing.B) {

  /** Creates a new {@link Closer}. */
  public static Closer create() {
    return new Closer(SUPPRESSING_SUPPRESSOR);
  }

  @VisibleForTesting final Suppressor suppressor;

  // only need space for 2 elements in most cases, so try to use the smallest array possible
  private final Deque<Closeable> stack = new ArrayDeque<>(4);
  private @Nullable Throwable thrown;

  @VisibleForTesting
  Closer(Suppressor suppressor) {

Actually, all (or most) of the web frameworks work in this same way.

You never call those functions directly. They are called by your framework (in this case, **FastAPI**).

    private Configuration mockConfig;

    @Mock
    private Smb2WriteResponse mockWriteResponse;

    private SmbFileOutputStream outputStream;

    @BeforeEach
    void setUp() {
        // Common setup for most tests
        lenient().when(mockFileHandle.getTree()).thenReturn(mockTreeHandle);
        lenient().when(mockTreeHandle.getConfig()).thenReturn(mockConfig);
    }

    @Test

* <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank"><strong>OpenAPI</strong></a> для создания API, включая объявления <abbr title="также известных, как  HTTP-методы, такие, как: POST, GET, PUT, DELETE">операций</abbr> <abbr title="известные как: эндпоинты, маршруты, 'ручки' и т.п.">пути</abbr>, параметров, тела запроса, безопасности и т.д.

    for (int i = 0; i < length; i++) {
      checkElementNotNull(array[i], i);
    }
    return array;
  }

  // We do this instead of Preconditions.checkNotNull to save boxing and array
  // creation cost.
  @CanIgnoreReturnValue
  static Object checkElementNotNull(@Nullable Object element, int index) {
    if (element == null) {
      throw new NullPointerException("at index " + index);
    }
    return element;

      setException(t);
      return;
    } finally {
      function = null;
    }

    /*
     * If set()/setValue() throws an Error, we let it propagate. Why? The most likely Error is a
     * StackOverflowError (from deep transform(..., directExecutor()) nesting), and calling
     * setException(stackOverflowError) would fail:
     *

  %*
if ERRORLEVEL 1 goto error
goto end

:error
set ERROR_CODE=1

:end
@endlocal & set ERROR_CODE=%ERROR_CODE%

if not "%MAVEN_SKIP_RC%"=="" goto skipRcPost
@REM check for post script, once with legacy .bat ending and once with .cmd ending
if exist "%USERPROFILE%\mavenrc_post.bat" echo Warning: The mavenrc_post.bat script is deprecated and will be removed in a future version. >&2