for (Present<V> element : values) {
        result.add(element != null ? element.value : null);
      }
      return unmodifiableList(result);
    }
  }

  /** The result of a successful {@code Future}. */
  private static final class Present<V extends @Nullable Object> {
    @ParametricNullness final V value;

    Present(@ParametricNullness V value) {
      this.value = value;
    }
  }

    taskFaker.runNextTask()

    // An edit should now add a job to clean up if the most recent trim failed.
    assertThat(cache.edit("b")).isNull()
    taskFaker.runNextTask()

    // Confirm a successful cache trim now allows edits.
    filesystem.setFaultyDelete(cacheDir / "a.0", false)
    assertThat(cache.edit("c")).isNull()
    taskFaker.runNextTask()
    set("c", "cc", "cc")
    assertValue("c", "cc", "cc")

        // Returning successfully is not ideal, but tolerated.
      } catch (NullPointerException tolerated) {
      }
    } else {
      try {
        entrySet.retainAll(null);
        // We have to tolerate a successful return (Sun bug 4802647)
      } catch (UnsupportedOperationException | NullPointerException e) {
        // Expected.
      }
    }
    assertInvariants(map);
  }

  public void testEntrySetClear() {

     * Set the associated file object
     * @param file the file object
     */
    public void setFile(Object file) {
        this.file = file;
    }

    /**
     * Update the file ID after successful create response
     * @param newFileId the new 16-byte file ID
     */
    public void updateFileId(byte[] newFileId) {
        if (newFileId.length != 16) {

          return left.getName().compareTo(right.getName());
        }
      };

  /**
   * Returns a new {@code MatchResult} that corresponds to a successful match. Apache Harmony (used
   * in Android) requires a successful match in order to generate a {@code MatchResult}:

    }

    // Test execute method with successful execution
    @Test
    public void test_execute_success() {
        createRequiredDirectories();

        // Setup successful process execution
        mockProcessHelper.setExitValue(0);
        mockProcessHelper.setOutput("Suggest creation successful");

        String result = suggestJob.execute();

        assertNotNull(result);

/// info | 資訊

請注意，`response_description` 專指回應，而 `description` 則是針對整個「路徑操作」的一般描述。

///

/// check | 檢查

OpenAPI 規範要求每個「路徑操作」都必須有一個回應描述。

因此，如果你未提供，**FastAPI** 會自動產生 "Successful response"。

///

<img src="/img/tutorial/path-operation-configuration/image03.png">

## 將「路徑操作」標記為已棄用 { #deprecate-a-path-operation }

若需要將「路徑操作」標記為 <dfn title="已過時，建議不要再使用">已棄用</dfn>，但不移除它，請傳入參數 `deprecated`：

    /**
     * Prints a new line.
     */
    public void println() {
        logger.info("");
    }

    // Semantic logging methods with icons for upgrade operations

    /**
     * Logs a successful operation with a checkmark icon.
     */
    public void success(String message) {
        logger.info(getCurrentIndent() + ConsoleIcon.SUCCESS.getIcon(terminal) + " " + message);
    }

    /**

     */
    public long getSequenceNumber() {
        return sequenceNumber;
    }

    /**
     * Gets the response sequence number returned by the server.
     * This should match the request sequence number in a successful response.
     *
     * @return the response sequence number
     */
    public long getResponseSequenceNumber() {
        return responseSequenceNumber;
    }

    /**

        "version": "0.1.0"
    },
    "paths": {
        "/items/": {
            "get": {
                "responses": {
                    "200": {
                        "description": "Successful Response",
                        "content": {
                            "application/json": {



...
```

#### OpenAPI의 용도 { #what-is-openapi-for }