/**
   * Exception thrown by {@code loadAll()} to indicate that it is not supported.
   *
   * @since 19.0
   */
  public static final class UnsupportedLoadingOperationException
      extends UnsupportedOperationException {
    // Package-private because this should only be thrown by loadAll() when it is not overridden.
    // Cache implementors may want to catch it but should not need to be able to throw it.

        stage: Stage,
        performanceTestCoverage: PerformanceTestCoverage,
        bucketIndex: Int,
    ): PerformanceTest

    fun getName(testCoverage: TestCoverage): String = throw UnsupportedOperationException()
}

data class TestProjectDuration(
    val testProject: String,
    val scenarioDurations: List<PerformanceTestDuration>,
) {
    val totalTime: Int = scenarioDurations.sumOf { it.durationInMs }

    public int previousIndex() {
      return nextIndex - 1;
    }

    @Override
    public void set(Entry<K, V> e) {
      throw new UnsupportedOperationException();
    }

    @Override
    public void add(Entry<K, V> e) {
      throw new UnsupportedOperationException();
    }

    void setValue(@ParametricNullness V value) {
      checkState(current != null);
      current.setValue(value);
    }

  }

  public void testAtMostOneSeparator() {
    BaseEncoding separated = base64().withSeparator("\n", 3);
    assertThrows(UnsupportedOperationException.class, () -> separated.withSeparator("$", 4));
  }

  public void testBase64() {
    // The following test vectors are specified in RFC 4648 itself
    testEncodingWithSeparators(base64(), "", "");

    public Object remove(final Object key) {
        return getProperties().remove(key);
    }

    @Override
    public void save(final OutputStream out, final String comments) {
        throw new UnsupportedOperationException("Unsupported operation.");
    }

    @Override
    public Object setProperty(final String key, final String value) {
        return getProperties().setProperty(key, value);
    }

    @Override

 *
 * <p>All methods that modify the table are optional, and the views returned by the table may or may
 * not be modifiable. When modification isn't supported, those methods will throw an {@link
 * UnsupportedOperationException}.
 *
 * <h3>Implementations</h3>
 *
 * <ul>
 *   <li>{@link ImmutableTable}
 *   <li>{@link HashBasedTable}
 *   <li>{@link TreeBasedTable}
 *   <li>{@link ArrayTable}

   * @param predicate a predicate that determines whether an element should be removed
   * @return {@code true} if any elements were removed from the iterable
   * @throws UnsupportedOperationException if the iterable does not support {@code remove()}.
   * @since 2.0
   */
  @CanIgnoreReturnValue
  public static <T extends @Nullable Object> boolean removeIf(

  // TODO(cpovirk): should we be including other methods from the shim here and
  // in ImmutableSortedMap?
  @Deprecated
  public static <E> ImmutableSortedSet.Builder<E> builder() {
    throw new UnsupportedOperationException();
  }

  private static final Comparator<?> NATURAL_ORDER = Ordering.natural();

  // TODO(b/345814817): Move this to RegularImmutableSortedSet?

        try {
            notifications.clear();
            // If this succeeds, the implementation allows modification
            assertTrue(notifications.isEmpty());
        } catch (UnsupportedOperationException e) {
            // If this throws, the implementation returned an immutable list
            assertEquals(2, notifications.size());
        }
    }

    @Test

    Entry<String, Collection<Integer>> barEntry = entries.next();
    assertEquals("bar", barEntry.getKey());
    assertThat(barEntry.getValue()).containsExactly(1, 3).inOrder();
    assertThrows(
        UnsupportedOperationException.class, () -> barEntry.setValue(Arrays.<Integer>asList()));
    entries.remove(); // clear
    Entry<String, Collection<Integer>> fooEntry = entries.next();
    assertEquals("foo", fooEntry.getKey());