}
        return null;
    }

    /**
     * @param t
     */
    private synchronized void switchTree(final SmbTreeImpl t) {
        try (SmbTreeImpl old = getTree()) {
            if (old == t) {
                return;
            }
            final boolean wasAcquired = this.treeAcquired;
            log.debug("Switching tree");
            if (t != null) {

# Usar antigos códigos de status de erro de autenticação 403 { #use-old-403-authentication-error-status-codes }

Antes da versão `0.122.0` do FastAPI, quando os utilitários de segurança integrados retornavam um erro ao cliente após uma falha na autenticação, eles usavam o código de status HTTP `403 Forbidden`.

uw/cvAQsCH1Cq+gYkDJqjrizPhGqg7mSkqyeST3PbOl+ZXc0wynIjA34JSwO3c5j
cF7XKHETtNGj1+AiLruX4wYZAJwQnK375fCoNVMO992zC6K83d8kvGMUgmJjkiIj
q3s4ymFGfoo0S/XNDQXgE5A5QjAKRKUyW2i7pHIIhTyOpeJQeFHDi2/zaZRxoCog
lD2/HKLi5xJtRelZaaGyEJ20c05VzaSZ+EtRIN33foNdyQQL6iAUU3hJ6JlcmRIB
bRfX4XPH1w9UfFU5ZKwUciCoDcL65bsyv/y56ItljBp7Ok+UUKl0H4myFNOSfsuU
IIj4neslnAvwQ8SN4XUpug+7pGF+2m/5UDwRzSUN1H2RfgWN95kqR+tYqCq/E+KO

 */
// These benchmarks allocate a lot of data so use a large heap
@VmOptions({"-Xms12g", "-Xmx12g", "-d64"})
@NullUnmarked
public class CharStreamsCopyBenchmark {
  enum CopyStrategy {
    OLD {
      @Override
      long copy(Readable from, Appendable to) throws IOException {
        CharBuffer buf = CharStreams.createBuffer();
        long total = 0;
        while (from.read(buf) != -1) {

    runs-on: [self-hosted, linux, ARM64]
    strategy:
      fail-fast: false
      matrix:
        pyver: ['3.9', '3.10', '3.11', '3.12']
    steps:
      - name: Stop old running containers (if any)
        shell: bash
        run: |
          running_containers=$(docker ps -q) && \
          if [[ $running_containers == "" ]]; then
            echo "No running containers";
          else

                    skipNext = false;
                }
                continue;
            }

            // Skip lines with this comment - we remove the relevant config
            if (line.contains("old style pattern")) {
                skipNext = line.endsWith("\\");
                continue;
            }

            if (line.startsWith("appender.")) {
                String[] parts = line.split("\\s*=\\s*");

	f.Close()
	if err != nil {
		log.Fatal(err)
	}

	// <= go 1.7 doesn't embed the contentID or actionID, so no slash is present
	if !strings.Contains(id, "/") {
		log.Fatalf("%s: build ID is a legacy format...binary too old for this tool", file)
	}

	newID := id[:strings.LastIndex(id, "/")] + "/" + buildid.HashToString(hash)
	if len(newID) != len(id) {
		log.Fatalf("%s: build ID length mismatch %q vs %q", file, id, newID)
	}

public class MultisetSetCountUnconditionallyTester<E> extends AbstractMultisetSetCountTester<E> {
  @Override
  void setCountCheckReturnValue(E element, int count) {
    assertEquals(
        "multiset.setCount() should return the old count",
        getMultiset().count(element),
        setCount(element, count));
  }

  @Override
  void setCountNoCheckReturnValue(E element, int count) {
    setCount(element, count);
  }

# 使用舊的 403 身分驗證錯誤狀態碼 { #use-old-403-authentication-error-status-codes }

在 FastAPI 版本 `0.122.0` 之前，當內建的安全工具在身分驗證失敗後回傳錯誤給用戶端時，會使用 HTTP 狀態碼 `403 Forbidden`。

從 FastAPI 版本 `0.122.0` 起，改為使用更合適的 HTTP 狀態碼 `401 Unauthorized`，並在回應中依據 HTTP 規範加上合理的 `WWW-Authenticate` 標頭，參考 [RFC 7235](https://datatracker.ietf.org/doc/html/rfc7235#section-3.1)、[RFC 9110](https://datatracker.ietf.org/doc/html/rfc9110#name-401-unauthorized)。

            list.execute();
          }

          @Override
          public Object getImpl() {
            return list;
          }
        };
      }
    },
    OLD {
      @Override
      ExecutionListWrapper newExecutionList() {
        return new ExecutionListWrapper() {
          final OldExecutionList list = new OldExecutionList();

          @Override