}

  @Test fun setDate() {
    val expected = Date(1000)
    val headers =
      Headers.Builder()
        .add("testDate", Date(0L))
        .set("testDate", expected)
        .build()
    assertThat(headers["testDate"]).isEqualTo("Thu, 01 Jan 1970 00:00:01 GMT")
    assertThat(headers.getDate("testDate")).isEqualTo(expected)
  }

  @Test fun setInstant() {

            final File file = File.createTempFile("crawler-", "");
            file.delete();
            file.mkdirs();
            file.deleteOnExit();
            fileTransformer.setPath(file.getAbsolutePath());
            crawler.addUrl(url);
            crawler.crawlerContext.setMaxAccessCount(maxCount);
            crawler.crawlerContext.setNumOfThread(numOfThread);

                .singleton("textTransformer", TextTransformer.class).singleton("tikaExtractor", TikaExtractor.class);
        textTransformer = container.getComponent("textTransformer");
        textTransformer.setName("textTransformer");
        ExtractorFactory extractorFactory = container.getComponent("extractorFactory");
        TikaExtractor tikaExtractor = container.getComponent("tikaExtractor");

The build state is managed by the `BuildState` class.
An instance is created for each build in the build definition, once per build execution and is discarded at the end of the execution. 

The build state also includes what is currently called the "Gradle state". The Gradle state is being merged into the build state and is mostly empty.

### Project state

    public FileTransformer fileTransformer;

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        fileTransformer = new FileTransformer();
        fileTransformer.setName("fileTransformer");
        Map<String, String> featureMap = newHashMap();
        featureMap.put("http://xml.org/sax/features/namespaces", "false");
        fileTransformer.setFeatureMap(featureMap);

}

func (s *Stack) File() string {
	return s.Base().Filename()
}

func (s *Stack) Base() *src.PosBase {
	return s.tr[len(s.tr)-1].Base()
}

func (s *Stack) SetBase(base *src.PosBase) {
	s.tr[len(s.tr)-1].SetBase(base)
}

func (s *Stack) Line() int {
	return s.tr[len(s.tr)-1].Line()
}

func (s *Stack) Col() int {
	return s.tr[len(s.tr)-1].Col()
}

func (s *Stack) Close() { // Unused.

	// must be present in ISO 8601 format, in reality they allow
	// users to provide RFC 3339 compliant dates.
	retDate, err := amztime.ISO8601Parse(dateStr)
	if err != nil {
		return ErrInvalidRetentionDate
	}

	*rDate = RetentionDate{retDate}
	return nil
}

// MarshalXML encodes expiration date if it is non-zero and encodes
// empty string otherwise

        Metadata result = new Metadata();
        Plugin plugin = new Plugin();
        plugin.setPrefix(pluginInfo.goalPrefix);
        plugin.setArtifactId(pluginInfo.artifactId);
        plugin.setName(pluginInfo.name);
        result.getPlugins().add(plugin);
        return result;
    }

    @Override
    protected void merge(Metadata recessive) {
        List<Plugin> recessivePlugins = recessive.getPlugins();

  static void awaitWaiting(Thread t) {
    while (true) {
      Thread.State state = t.getState();
      switch (state) {
        case RUNNABLE:
        case BLOCKED:
          Thread.yield();
          break;
        case WAITING:
          return;
        default:
          throw new AssertionError("unexpected state: " + state);
      }
    }
  }

  private static boolean trySetName(String threadName, Thread currentThread) {
    /*
     * setName should usually succeed, but the security manager can prohibit it. Is there a way to
     * see if we have the modifyThread permission without catching an exception?
     */
    try {
      currentThread.setName(threadName);
      return true;
    } catch (SecurityException e) {
      return false;
    }
  }