if (assertionsEnabled && Thread.holdsLock(this)) {
    throw AssertionError("Thread ${Thread.currentThread().name} MUST NOT hold lock on $this")
  }
}

internal inline fun Lockable.assertLockHeld() {
  if (assertionsEnabled && !Thread.holdsLock(this)) {
    throw AssertionError("Thread ${Thread.currentThread().name} MUST hold lock on $this")
  }
}

@OptIn(ExperimentalContracts::class)

        this.client = Objects.requireNonNull(client, "client must not be null");
        suggestSettings = Objects.requireNonNull(settings, "settings must not be null");
        this.readingConverter = Objects.requireNonNull(readingConverter, "readingConverter must not be null");
        this.contentsReadingConverter = Objects.requireNonNull(contentsReadingConverter, "contentsReadingConverter must not be null");

     *
     * @param algorithm
     *            The algorithm (refer to the Javadoc of {@link MessageDigest} for available algorithms).
     *            Must not be {@literal null} or an empty string.
     * @return {@link MessageDigest}
     * @throws RuntimeException
     *             If a {@link NoSuchAlgorithmException} occurs
     */

    checkArgument(iterator.hasNext(), "Must be at least 1 hash code to combine.");
    int bits = iterator.next().bits();
    byte[] resultBytes = new byte[bits / 8];
    for (HashCode hashCode : hashCodes) {
      byte[] nextBytes = hashCode.asBytes();
      checkArgument(
          nextBytes.length == resultBytes.length, "All hashcodes must have the same bit length.");

		switch condt := val.(type) {
		case map[string]any: // Handle key:value map types.
			for k, v := range condt {
				if !isString(v) { // Pre-check value type.
					// All values must be of type string.
					return parsedPolicy, fmt.Errorf("Unknown type %s of conditional field value %s found in POST policy form", reflect.TypeOf(condt).String(), condt)
				}

 * Language.
 * <p>
 * This extensible enum has two defined values, {@link #NONE} and {@link #JAVA_FAMILY},
 * but can be extended by registering a {@code org.apache.maven.api.spi.LanguageProvider}.
 * <p>
 * Implementation must have {@code equals()} and {@code hashCode()} implemented, so implementations of this interface
 * can be used as keys.
 *
 * @since 4.0.0
 */
@Experimental
@Immutable
@SuppressWarnings("checkstyle:InterfaceIsType")

 * repositories.
 * <p>
 * ModelSource2 instances are cached in {@link ModelBuildingRequest#getModelCache()}. Implementations must guarantee
 * that the connection to the backing store remains active until request's {@link ModelCache} is discarded or flushed.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */

     * cache.
     *
     * @param project The project that employs the plugin realm, must not be {@code null}.
     * @param record The cache record being used for the project, must not be {@code null}.
     */
    void register(MavenProject project, Key key, CacheRecord record);

     * Creates and initializes a new instance of the class declared by the specified constructor with the given initialization parameters.
     *
     * @param <T> the type of the object
     * @param constructor the constructor (must not be {@literal null})
     * @param args the array of objects to be passed as arguments to the constructor invocation
     * @return a new object created by invoking the constructor

     * cache.
     *
     * @param project The project that employs the plugin realm, must not be {@code null}.
     * @param record The cache record being used for the project, must not be {@code null}.
     */
    void register(MavenProject project, Key cacheKey, CacheRecord record);