}
            }
        } catch (Exception e) {
            log.debug("Cached directory listing failed, falling back to direct query", e);
        }
        
        // Fall back to direct server query
        return directory.performDirectEnumeration();
    }
}
```

## 10. Monitoring and Metrics

### 10.1 Directory Cache Statistics

 *  Fix: Apply call timeouts when connecting duplex calls, web sockets, and server-sent events.
    Once the streams are established no further timeout is enforced.

 *  Fix: Retain the `Route` when a connection is reused on a redirect or other follow-up. This was
    causing some `Authenticator` calls to see a null route when non-null was expected.

 *  Fix: Use the correct key size in the name of `TLS_AES_128_CCM_8_SHA256` which is a TLS 1.3

    <description>
      <![CDATA[
      This is a set of Artifact instances resolved from the set of dependencies for
      the current project.

      NOTE: This will likely contain much more than the direct dependencies of the
      current POM, since Maven uses transitive, or chained, dependency resolution.
    ]]></description>
  </expression>
  <expression>
    <syntax>project.parentArtifact</syntax>
    <configuration>

`swagger_ui_redirect` 用の *path operation* は、OAuth2 を使用する場合の補助です。

API を OAuth2 プロバイダと統合すると、認証を実行して取得したクレデンシャルを持った状態で API ドキュメントに戻れます。そして実際の OAuth2 認証を用いてドキュメント上から API と対話できます。

Swagger UI がこの処理を裏側で行いますが、そのためにこの「redirect」の補助が必要です。

///

### テスト用の *path operation* を作成 { #create-a-path-operation-to-test-it }

すべてが動作するかをテストできるように、*path operation* を作成します:

{* ../../docs_src/custom_docs_ui/tutorial001_py310.py hl[36:38] *}

    @DisplayName("Should handle time encoding/decoding")
    void testTimeOperations() {
        // Given
        Date currentDate = new Date();
        byte[] buffer = new byte[8];

        // When - Use direct encoding methods since time constants are private
        Encdec.enc_uint64le(currentDate.getTime(), buffer, 0);
        long decoded = Encdec.dec_uint64le(buffer, 0);

        // Then

    }

    /**
     * Test getFlags method.
     * This is implicitly tested by the constructors, but an explicit test ensures its direct functionality.
     */
    @Test
    void testGetFlags() {
        int expectedFlags = 0xAABBCCDD;
        AvFlags avFlags = new AvFlags(expectedFlags);

     * It should return a string representation of the object.
     */
    @Test
    void testToString() {
        // The actual toString() method uses super.toString(), so we mimic that for the check.
        // A direct string comparison might be brittle, so we check for the class name and brackets.
        String actualString = response.toString();
        assertTrue(actualString.startsWith("Trans2SetFileInformationResponse["),

    } catch (e: IOException) {
      // If we used the ProxySelector, and got a IOException during connect, report the failure.
      if (route.address.proxy == null && route.proxy.type() != Proxy.Type.DIRECT) {
        route.address.proxySelector.connectFailed(
          route.address.url.toUri(),
          route.proxy.address(),
          e,
        )
      }

            throwValidationError(messages -> messages.addErrorsFileIsNotSupported(GLOBAL, fileName), this::asListHtml);
        }
        saveInfo(messages -> messages.addSuccessBulkProcessStarted(GLOBAL));
        return redirect(getClass()); // no-op
    }

    /**
     * Import the file asynchronously.
     * @param fileName The file name.
     * @param tempFile The temporary file.
     */

  }

  @JvmStatic
  val windows: Boolean
    get() = System.getProperty("os.name", "?").startsWith("Windows")

  /**
   * Make assertions about the suppressed exceptions on this. Prefer this over making direct calls
   * so tests pass on GraalVM, where suppressed exceptions are silently discarded.
   *
   * https://github.com/oracle/graal/issues/3008
   */
  @JvmStatic