## SDK Generators from FastAPI Sponsors { #sdk-generators-from-fastapi-sponsors }

This section highlights **venture-backed** and **company-supported** solutions from companies that sponsor FastAPI. These products provide **additional features** and **integrations** on top of high-quality generated SDKs.

By ✨ [**sponsoring FastAPI**](../help-fastapi.md#sponsor-the-author) ✨, these companies help ensure the framework and its **ecosystem** remain healthy and **sustainable**.

                return System.currentTimeMillis();
            }
        };
        roleQueryHelper.maxAge = 60;

        Set<String> roleSet = new HashSet<>();
        // Create timestamp that's in the future
        long futureTimestamp = System.currentTimeMillis() / 1000 + 120;
        String value = futureTimestamp + "\nrole1,role2";

        roleQueryHelper.parseRoleSet(value, false, roleSet);

     * security. ECDSA keys are noticeably faster than RSA keys.
     *
     * This is the default configuration and has been since this API was introduced in OkHttp
     * 3.11.0. Note that the default may change in future releases.
     */
    fun ecdsa256() =
      apply {
        keyAlgorithm = "EC"
        keySize = 256
      }

    /**

### Certificate Renewal { #certificate-renewal }

At some point in the future, each certificate would **expire** (about 3 months after acquiring it).

constraints.AssertTrue.message = {item} 必須為 true。
constraints.DecimalMax.message = {item} 必須小於 {value}。
constraints.DecimalMin.message = {item} 必須大於 {value}。
constraints.Digits.message = {item} 必須是數字。(預期: <數字>.<數字>)
constraints.Future.message = {item} 必須是未來的日期。
constraints.Max.message = {item} 必須小於或等於 {value}。
constraints.Min.message = {item} 必須大於或等於 {value}。
constraints.NotNull.message = {item} 不能為空。
constraints.Null.message = {item} 必須為 null。

        return excludedPackages;
    }

    // TODO: This doesn't really make sense to be part of the user manual generation, but it's so tied up into it
    // it's left here for a future project.
    private void generateDefaultImports(Project project, TaskContainer tasks, GradleDocumentationExtension extension) {
        List<String> excludedPackages = getDefaultExcludedPackages();

 * if you are writing a application that needs to aggressively release unused resources you may do
 * so.
 *
 * Shutdown the dispatcher's executor service with [shutdown()][ExecutorService.shutdown]. This will
 * also cause future calls to the client to be rejected.
 *
 * ```java
 * client.dispatcher().executorService().shutdown();
 * ```
 *
 * Clear the connection pool with [evictAll()][ConnectionPool.evictAll]. Note that the connection

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Simplified circuit breaker implementation for SMB operations.
 * Thread-safe and lock-free implementation to prevent cascading failures.
 *
 * Features:
 * - Simple state management (CLOSED, OPEN, HALF_OPEN)
 * - Lock-free atomic operations
 * - Configurable thresholds and timeouts
 * - No complex dependencies
 */
public class SimpleCircuitBreaker {

    the OkHttp version in custom `User-Agent` headers.

 *  Fix: Don't crash when running as a plugin in Android Studio Canary 4.1. To enable
    platform-specific TLS features OkHttp must detect whether it's running in a JVM or in Android.
    The upcoming Android Studio runs in a JVM but has classes from Android and that confused OkHttp!

import com.google.common.collect.testing.QueueTestSuiteBuilder;
import com.google.common.collect.testing.TestStringQueueGenerator;
import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.CollectionSize;
import com.google.common.testing.NullPointerTester;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;