if err != nil {
			return written, err
		}

		if nw != int64(len(buf)) {
			return written, io.ErrShortWrite
		}

		if totalSize > 0 && written == totalSize {
			// we have written the entire stream, return right here.
			return written, nil
		}

		if eof {
			// We reached EOF prematurely but we did not write everything
			// that we promised that we would write.

   * this reason.
   *
   * <p><b>Java 8+ users:</b> many use cases for this method are better addressed by {@link
   * java.util.stream.Stream#map}. This method is not being deprecated, but we gently encourage you
   * to migrate to streams.
   */
  public static <F extends @Nullable Object, T extends @Nullable Object> List<T> transform(
      List<F> fromList, Function<? super F, ? extends T> function) {

import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import java.util.SortedSet;
import java.util.TreeSet;
import java.util.stream.Collector;
import javax.annotation.CheckForNull;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * GWT emulation of {@link com.google.common.collect.ImmutableSortedSet}.
 *
 * @author Hayward Chan

import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;

import javax.xml.transform.OutputKeys;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;

import org.apache.groovy.util.Maps;
import org.apache.logging.log4j.LogManager;

	case authTypeStreamingSigned, authTypeStreamingSignedTrailer:
		// Initialize stream signature verifier.
		rd, s3Err = newSignV4ChunkedReader(r, rAuthType == authTypeStreamingSignedTrailer)
		if s3Err != ErrNone {
			writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL)
			return
		}
	case authTypeStreamingUnsignedTrailer:
		// Initialize stream chunked reader with optional trailers.

    synchronized SmbFileHandleImpl ensureOpen () throws CIFSException {
        // ensure file is open
        if ( this.handle == null || !this.handle.isValid() ) {
            // one extra acquire to keep this open till the stream is released
            this.handle = this.file.openUnshared(this.openFlags, this.access, this.sharing, SmbConstants.ATTR_NORMAL, this.options).acquire();
            return this.handle;
        }

			return nil, err
		}
	}

	// Set content-type to default value if it is not set.
	if _, ok := metadata[strings.ToLower(xhttp.ContentType)]; !ok {
		metadata[strings.ToLower(xhttp.ContentType)] = "binary/octet-stream"
	}

	// https://github.com/google/security-research/security/advisories/GHSA-76wf-9vgp-pj7w
	for k := range metadata {
		if equals(k, xhttp.AmzMetaUnencryptedContentLength, xhttp.AmzMetaUnencryptedContentMD5) {

	}

	if isTruncated {
		listObjectsInfo.IsTruncated = true
		listObjectsInfo.NextContinuationToken = nextToken
	}

	return listObjectsInfo, nil
}

// getFilesFromZIPObject reads a partial stream of a zip file to build the zipindex.Files index
func getFilesListFromZIPObject(ctx context.Context, objectAPI ObjectLayer, bucket, object string, opts ObjectOptions) (zipindex.Files, ObjectInfo, error) {
	size := 1 << 20

import java.util.TreeMap;
import java.util.function.BiConsumer;
import java.util.function.BinaryOperator;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.stream.Collector;
import java.util.stream.Collectors;
import javax.annotation.CheckForNull;
import org.checkerframework.checker.nullness.qual.Nullable;

/**

	case authTypeStreamingSigned, authTypeStreamingSignedTrailer:
		// Initialize stream signature verifier.
		reader, s3Error = newSignV4ChunkedReader(r, rAuthType == authTypeStreamingSignedTrailer)
		if s3Error != ErrNone {
			writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
			return
		}
	case authTypeStreamingUnsignedTrailer:
		// Initialize stream signature verifier.
		reader, s3Error = newUnsignedV4ChunkedReader(r, true)