impl = EmptySetBuilderImpl.instance();
      }
    }

    Builder(@SuppressWarnings("unused") boolean subclass) {
      this.impl = null; // unused
    }

    @VisibleForTesting
    void forceJdk() {
      requireNonNull(impl); // see the comment on the field
      this.impl = new JdkBackedSetBuilderImpl<>(impl);
    }

    final void copyIfNecessary() {
      if (forceCopy) {
        copy();

                  @Override
                  protected Set<String> create(String[] elements) {
                    ImmutableSet.Builder<String> builder = ImmutableSet.builder();
                    builder.forceJdk();
                    builder.add(elements);
                    return builder.build();
                  }
                })
            .named(ImmutableSetTest.class.getName() + ", with JDK builder")

		if !disableMD5 {
			if _, ok := src.(etag.Tagger); !ok {
				src = etag.NewReader(ctx, r, MD5, forceMD5)
			} else {
				src = etag.Wrap(r, src)
			}
		} else {
			src = r
		}
	} else if _, ok := src.(etag.Tagger); !ok {
		if !disableMD5 {
			src = etag.NewReader(ctx, src, MD5, forceMD5)
		}
	}
	var h hash.Hash
	if len(SHA256) != 0 {
		h = sha256.New()
	}
	return &Reader{

      @Override
      public ImmutableBiMap<Object, Object> create(List<Entry<?, ?>> entries) {
        return ImmutableBiMap.builder().putAll(entries).buildOrThrow();
      }
    },
    FORCE_JDK {
      @Override
      public ImmutableBiMap<Object, Object> create(List<Entry<?, ?>> entries) {
        return ImmutableBiMap.builder().putAll(entries).buildJdkBacked();
      }
    };

 *
 * @since 4.0.0
 */
@Experimental
public interface EncryptOptions extends Options {
    /**
     * Should the operation be forced (ie overwrite existing config, if any).
     *
     * @return an {@link Optional} containing the boolean value {@code true} if specified, or empty
     */
    Optional<Boolean> force();

    /**

            assertEquals(transport, result);
            verify(transportPool).getSmbTransport(context, TEST_HOST, DEFAULT_PORT, true, false);
        }

        @Test
        @DisplayName("Should get transport by name with forced signing")
        void testGetSmbTransportByNameForceSigning() throws UnknownHostException, IOException {
            // Given

    }

    @Test
    void acceptPropagatesException() {
        SmbFile dir = Mockito.mock(SmbFile.class);
        SmbFilenameFilter filter = (d, n) -> {
            throw new SmbException("forced exception");
        };
        Exception e = assertThrows(Exception.class, () -> filter.accept(dir, "any"));
        assertTrue(e instanceof SmbException);
    }

Historically, Gradle has shipped with some Groovy types in very prominent APIs.
This required the Kotlin DSL to add special integration to work with Groovy closures.
This has also forced plugins written in languages other than Groovy to use Groovy types for some APIs.

When the Kotlin DSL was introduced, we made an effort to add non-Groovy equivalents for all APIs.

		return
	}

	var forceMD5 []byte
	// Optimization: If SSE-KMS and SSE-C did not request Content-Md5. Use uuid as etag. Optionally enable this also
	// for server that is started with `--no-compat`.
	kind, _ := crypto.IsRequested(formValues)
	if !etag.ContentMD5Requested(formValues) && (kind == crypto.SSEC || kind == crypto.S3KMS || !globalServerCtxt.StrictS3Compat) {
		forceMD5 = mustGetUUIDBytes()
	}

    /**
     * Checks whether a connection can be reused for the given configuration.
     *
     * @param tc the CIFS context to check compatibility with
     * @param forceSigning whether signing is being forced
     * @return whether a connection can be reused for this config
     */
    boolean canReuse(CIFSContext tc, boolean forceSigning);