had an off-by-one bug in our HPACK encoder. This bug could have caused the
    wrong headers to be emitted after a sequence of HTTP/2 requests! Everyone
    who is using OkHttp 3.4.0 or 3.4.0-RC1 should upgrade for this bug fix.


## Version 3.4.0

_2016-07-08_

 *  New: Support dynamic table size changes to HPACK Encoder.

import org.junit.jupiter.api.Assumptions.assumeFalse
import org.junit.jupiter.params.ParameterizedTest
import org.junit.jupiter.params.provider.ArgumentsSource

/**
 * Tests for round-tripping headers through hpack.
 *
 * TODO: update hpack-test-case with the output of our encoder.
 * This test will hide complementary bugs in the encoder and decoder,
 * We should test that the encoder is producing responses that are
 */

import okhttp3.internal.http2.hpackjson.HpackJsonUtil
import okhttp3.internal.http2.hpackjson.Story
import okio.Buffer

/**
 * Tests Hpack implementation using https://github.com/http2jp/hpack-test-case/
 */
open class HpackDecodeTestBase {
  private val bytesIn = Buffer()
  private val hpackReader = Hpack.Reader(bytesIn, 4096)

  protected fun testDecoder(story: Story) {
    for (testCase in story.cases) {

	if cap(b) != bp.wcap {
		// someone tried to put back buffer which is not part of this buffer pool
		// we simply don't put this back into pool, a modified buffer provided
		// by this package is no more usable, callers make sure to not modify
		// the capacity of the buffer.
		return
	}

	select {
	case bp.c <- b[:bp.w]:
		// buffer went back into pool
	default:
		// buffer didn't go back into pool, just discard
	}
}

				}
			}
		}
		return ObjectInfo{}, toObjectErr(err, srcBucket, srcObject)
	}

	// List all online disks.
	onlineDisks, modTime, etag := listOnlineDisks(storageDisks, metaArr, errs, readQuorum)

	// Pick latest valid metadata.
	fi, err := pickValidFileInfo(ctx, metaArr, modTime, etag, readQuorum)
	if err != nil {
		return oi, toObjectErr(err, srcBucket, srcObject)
	}
	if fi.Deleted {
		if srcOpts.VersionID == "" {

import okio.ByteString

/**
 * This class was originally composed from the following classes in
 * [Twitter Hpack][twitter_hpack].
 *
 *  * `com.twitter.hpack.HuffmanEncoder`
 *  * `com.twitter.hpack.HuffmanDecoder`
 *  * `com.twitter.hpack.HpackUtil`
 *
 * [twitter_hpack]: https://github.com/twitter/hpack
 */
object Huffman {
  // Appendix C: Huffman Codes

    fileSystem.read(file) {
      return readStory(this)
    }
  }

  /** Iterate through the hpack-test-case resources, only picking stories for the current draft.  */
  fun storiesForCurrentDraft(): Array<String> {
    val resource =
      HpackJsonUtil::class.java.getResource("/hpack-test-case")
        ?: return arrayOf()

    val testCaseDirectory = File(resource.toURI()).toOkioPath()

                                if (resetArtifact.getVersion() == null && resetArtifact.getVersionRange() != null) {

                                    // go find the version. This is a total hack. See previous comment.
                                    List<ArtifactVersion> versions = resetArtifact.getAvailableVersions();
                                    if (versions == null) {

        ArtifactFilter resolutionFilter = request.getResolutionFilter();
        RepositorySystemSession session = getSession(request.getLocalRepository());

        // TODO: hack because metadata isn't generated in m2e correctly and i want to run the maven i have in the
        // workspace
        if (source == null) {
            try {

import org.junit.jupiter.api.Test

class HpackTest {
  private val bytesIn = Buffer()
  private var hpackReader: Hpack.Reader? = null
  private val bytesOut = Buffer()
  private var hpackWriter: Hpack.Writer? = null

  @BeforeEach
  fun reset() {
    hpackReader = newReader(bytesIn)
    hpackWriter = Hpack.Writer(4096, false, bytesOut)
  }

  /**