public final int previousIndex() {
    return backingIterator().previousIndex();
  }

  @Override
  public void set(@ParametricNullness T element) {
    throw new UnsupportedOperationException();
  }

  @Override
  public void add(@ParametricNullness T element) {
    throw new UnsupportedOperationException();
  }

        public DateFormat next() {
            if (!hasNext()) {
                throw new NoSuchElementException();
            }
            final int style = STYLES[index++];
            return DateFormat.getTimeInstance(style, locale);
        }

        @Override
        public void remove() {
            throw new ClUnsupportedOperationException("remove");
        }

    }

    /**

        public DateFormat next() {
            if (!hasNext()) {
                throw new NoSuchElementException();
            }
            final int style = STYLES[index++];
            return DateFormat.getDateTimeInstance(style, style, locale);
        }

        @Override
        public void remove() {
            throw new ClUnsupportedOperationException("remove");
        }

    }

    /**

            case HALF_UP:
              return (sign(x) >= 0) ? roundCeilingAsDouble : roundFloorAsDouble;
            default:
              throw new AssertionError("impossible");
          }
        }
    }
    throw new AssertionError("impossible");
  }

}

internal inline fun Lockable.assertLockNotHeld() {
  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")
  }
}

    }

    @Override
    public ClassLoader next() {
        if (!hasNext()) {
            throw new NoSuchElementException();
        }
        final ClassLoader result = classLoader;
        classLoader = classLoader.getParent();
        return result;
    }

    @Override
    public void remove() {
        throw new ClUnsupportedOperationException("remove");
    }

  }

  @MapFeature.Require(absent = ALLOWS_NULL_KEY_QUERIES)
  public void testGet_nullNotContainedAndUnsupported() {
    try {
      assertNull("get(null) should return null or throw", get(null));
    } catch (NullPointerException tolerated) {
    }
  }

  @MapFeature.Require(ALLOWS_NULL_KEYS)
  @CollectionSize.Require(absent = ZERO)
  public void testGet_nonNullWhenNullContained() {

            if (systemProperty(TESTS_REST_CLUSTER) == null) {
                if (systemProperty(TESTS_CLUSTER) != null || systemProperty(TESTS_CLUSTER_NAME) != null) {
                    throw new IllegalArgumentException(
                        String.format("%s, %s, and %s must all be null or non-null", TESTS_REST_CLUSTER, TESTS_CLUSTER, TESTS_CLUSTER_NAME)
                    );
                }

    override fun getName(): String = "IntegrationTestFixtures"

    override fun getPriority(): Int = 1

    override fun setPriority(priority: Int) {
        throw UnsupportedOperationException()
    }

    override fun setName(name: String?) {
        throw UnsupportedOperationException()
    }

    override fun getDescription(): String = "Reports incorrect usages of integration test fixtures"

class IanaSuites(
  val name: String,
  val suites: List<SuiteId>,
) {
  fun fromJavaName(javaName: String): SuiteId =
    suites.firstOrNull {
      it.name == javaName || it.name == "TLS_${javaName.drop(4)}"
    } ?: throw IllegalArgumentException("No such suite: $javaName")
}

suspend fun fetchIanaSuites(okHttpClient: OkHttpClient): IanaSuites {
  val url = "https://www.iana.org/assignments/tls-parameters/tls-parameters-4.csv"