TestCharSource okSource = new TestCharSource(STRING);
      assertThrows(IOException.class, () -> okSource.copyTo(new TestCharSink(option)));
      // ensure reader was closed IF it was opened (depends on implementation whether or not it's
      // opened at all if sink.newWriter() throws).
      assertTrue(
          "stream not closed when copying to sink with option: " + option,

  /*
   * This class is used to serialize all ImmutableSortedSet instances,
   * regardless of implementation type. It captures their "logical contents"
   * only. This is necessary to ensure that the existence of a particular
   * implementation type is an implementation detail.
   */
  @J2ktIncompatible // serialization
  private static class SerializedForm<E> implements Serializable {

        ClassPath classpath;
        List<File> searchClassPath;

        if (gradleInstallation == null) {
            // When not running from a Gradle distro, need the daemon main jar and the daemon server implementation plus the search path to look for other modules
            classpath = registry.getModule("gradle-daemon-server").getAllRequiredModulesClasspath();

            // Setup the dependency on the main binary
            // This should all be replaced by a single dependency that points at some "testable" variants of the main binary

            // Inherit implementation dependencies
            testExecutable.getImplementationDependencies().extendsFrom(((DefaultCppBinary) testedBinary).getImplementationDependencies());

              : new DescendingImmutableSortedMultiset<E>(this);
    }
    return result;
  }

  /**
   * {@inheritDoc}
   *
   * <p>This implementation is guaranteed to throw an {@link UnsupportedOperationException}.
   *
   * @throws UnsupportedOperationException always
   * @deprecated Unsupported operation.
   */
  @CanIgnoreReturnValue
  @Deprecated

        } finally {
            Thread.currentThread().setContextClassLoader(originalClassLoader);
        }
    }

    /**
     * Define a class into a class loader.
     *
     * On Java 8, the implementation is simply invoking {@link ClassLoader#defineClass} reflectively.
     *
     * Since Java 9, reflection is severely restrained, and a new API {@link MethodHandles.Lookup#defineClass} is introduced.

     */
    @Nonnull
    @Override
    public String[] option(Iterable<? extends Path> paths) {
        return format(null, paths);
    }

    /**
     * Implementation shared with {@link Modular}.
     */
    final String[] format(String moduleName, Iterable<? extends Path> paths) {
        if (option == null) {

            // Note that this isn't strictly correct as some system properties can only be set on JVM start up.
            // Should change the implementation to deal with these properly
            for (String jvmArg : invocation.implicitLauncherJvmArgs) {
                if (!jvmArg.contains(" ")) {
                    invocation.launcherJvmArgs.add(jvmArg);

        @Override
        public void addDynamicMethods() {
            if (!mixInDsl) {
                return;
            }

            // DefaultProject has its own implementation of GroovyObject's methods, and we want to keep those implementations.
            // TODO: introduce a better way to communicate this for classes that don't need generated dynamic-object methods?

            final @Nullable ValueSource<T, P> obtainedFrom;
            try {
                value.finalizeIfNotAlready();
            } finally {
                // Don't leak the source implementation even if obtaining its value throws.
                // This is mostly a theoretical possibility, but the call above is blocking, so it can be interrupted.
                obtainedFrom = sourceRef.getAndSet(null);
            }