*/
  @JvmOverloads
  fun charset(defaultValue: Charset? = null): Charset? {
    val charset = parameter("charset") ?: return defaultValue
    return try {
      Charset.forName(charset)
    } catch (_: IllegalArgumentException) {
      defaultValue // This charset is invalid or unsupported. Give up.
    }
  }

  /**
   * Returns the parameter [name] of this media type, or null if this media type does not define

    }

    @Test
    void testActivityTracking() {
        long initialTime = channelInfo.getLastActivityTime();

        // Wait a bit and update activity
        try {
            Thread.sleep(10);
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
        }

        channelInfo.updateActivity();
        assertTrue(channelInfo.getLastActivityTime() > initialTime);

        PreauthIntegrityNegotiateContext ctx = new PreauthIntegrityNegotiateContext();
        try {
            setPrivateField(ctx, "hashAlgos", new int[] { PreauthIntegrityNegotiateContext.HASH_ALGO_SHA512 });
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
        return ctx;
    }

    private NegotiateContextRequest createMockEncryptionContext() {

        try {
            return accessTokenService.getPermissions(request)
                    .map(permissions -> fessConfig.isApiAdminAccessAllowed(permissions))
                    .orElse(false);
        } catch (final InvalidAccessTokenException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Invalid access token.", e);
            }
            return false;
        }
    }

            return 4;
        }

        try {
            securityDescriptor = new SecurityDescriptor();
            bufferIndex += securityDescriptor.decode(buffer, bufferIndex, len);
        } catch (final IOException ioe) {
            throw new RuntimeException(ioe.getMessage());
        }

        return bufferIndex - start;
    }

    @Override
    public String toString() {

            - iter_json
            - send_text
            - send_bytes
            - send_json
            - close

When a client disconnects, a `WebSocketDisconnect` exception is raised, you can catch it.

You can import it directly form `fastapi`:

```python
from fastapi import WebSocketDisconnect
```

::: fastapi.WebSocketDisconnect

## WebSockets - additional classes

        getRole(form).ifPresent(entity -> {
            try {
                roleService.store(entity);
                saveInfo(messages -> messages.addSuccessCrudCreateCrudTable(GLOBAL));
            } catch (final Exception e) {
                logger.warn("Failed to add {}", entity, e);
                throwValidationError(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)),

        try {
            Path path = ResourceUtil.getConfOrClassesPath("nonexistent.conf");
            fail("Should throw ResourceNotFoundRuntimeException for non-existent file");
        } catch (org.codelibs.core.exception.ResourceNotFoundRuntimeException e) {
            // Expected behavior - method throws exception for non-existent files
            assertTrue(e.getMessage().contains("nonexistent.conf"));
        }

  protected abstract List<Class<? extends AbstractTester>> getTesters();

  private boolean matches(Test test) {
    Method method;
    try {
      method = extractMethod(test);
    } catch (IllegalArgumentException e) {
      logger.finer(Platform.format("%s: including by default: %s", test, e.getMessage()));
      return true;
    }
    if (suppressedTests.contains(method)) {

#### 🛠️

"🛠️" 📥 🔗 1️⃣ 🇺🇸🔍 "👩‍🔬".

1️⃣:

* `POST`
* `GET`
* `PUT`
* `DELETE`

...& 🌅 😍 🕐:

* `OPTIONS`
* `HEAD`
* `PATCH`
* `TRACE`

🇺🇸🔍 🛠️, 👆 💪 🔗 🔠 ➡ ⚙️ 1️⃣ (⚖️ 🌅) 👫 "👩‍🔬".

---

🕐❔ 🏗 🔗, 👆 🛎 ⚙️ 👫 🎯 🇺🇸🔍 👩‍🔬 🎭 🎯 🎯.

🛎 👆 ⚙️:

* `POST`: ✍ 💽.
* `GET`: ✍ 💽.
* `PUT`: ℹ 💽.