internal
val JApiCompatibility.jApiClass: JApiClass
    get() = when (this) {
        is JApiClass -> this
        is JApiField -> this.getjApiClass()
        is JApiBehavior -> this.getjApiClass()
        else -> error("Unsupported japicmp member type '${this::class}'")
    }


internal
val JApiClass.isKotlin: Boolean
    get() = newClass.orElse(null)?.isKotlin ?: false


internal
val JApiClass.simpleName: String

    assertThrows(NullPointerException.class, () -> putAll(containsNullKey));
    expectUnchanged();
    expectNullKeyMissingWhenNullKeysUnsupported(
        "Should not contain null key after unsupported putAll(containsNullKey)");
  }

  @MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_VALUES})
  public void testPutAll_nullValueSupported() {
    putAll(containsNullValue);
    expectAdded(containsNullValue.get(0));

        try {
            final ActionResponse actionResponse = ssoManager.getResponse(SsoResponseType.METADATA);
            if (actionResponse == null) {
                throw responseManager.new400("Unsupported request type.");
            }
            return actionResponse;
        } catch (final SsoMessageException e) {
            if (e.getCause() == null) {
                if (logger.isDebugEnabled()) {

   * specify a charset, or if its charset is unsupported by the current runtime.
   */
  @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.
    }
  }

  /**

```

```toml
// This is a sample TOML code block
title = "TOML Example"  // Title of the document
```


### Code blocks with comments with unsupported languages or without language specified { #code-blocks-with-unsupported-languages }

The following code blocks use unsupported languages for comment preservation.
Fixer tool will not preserve comments in these blocks.

```javascript
// This is a sample JavaScript code block

  public void testOffer_nullUnsupported() {
    assertThrows(NullPointerException.class, () -> getQueue().offer(null));
    expectUnchanged();
    expectNullMissingWhenNullUnsupported("Should not contain null after unsupported offer(null)");
  }

	return info, nil
}

// GetDriveStats returns IO stats of the drive by its major:minor
func GetDriveStats(major, minor uint32) (iostats IOStats, err error) {
	return IOStats{}, errors.New("operation unsupported")

        Set<RequestData> result = crawlerThread.getAnchorSet(urls);
        assertNull(result, "getAnchorSet should return null when all items are filtered out");
    }

    /**
     * Test getAnchorSet with unsupported object type
     */
    @Test
    public void test_getAnchorSet_withUnsupportedType() {
        FessCrawlerThread crawlerThread = new FessCrawlerThread();

        Integer unsupportedType = 123;

                is CtMethod -> ktFile.getSince(ctDeclaringClass, ctMember, fallback = declaringClassSince)
                else -> error("Unsupported japicmp member type '${member::class}'")
            }
        }
    }

    private
    fun KtFile.getSince(declaringClass: CtClass, field: CtField, fallback: String?): SinceTagStatus =

	default:
		logger.CriticalIf(GlobalContext, errors.New("Unsupported bitrot algorithm"))
		return nil
	}
}

// Available reports whether the given algorithm is available.
func (a BitrotAlgorithm) Available() bool {
	_, ok := bitrotAlgorithms[a]
	return ok
}

// String returns the string identifier for a given bitrot algorithm.
// If the algorithm is not supported String panics.
func (a BitrotAlgorithm) String() string {