* AnnotatedElement}, which {@code TypeVariable} began to extend only in Java 8. Those methods
   * refer only to types present under Android, so we could implement them in {@code
   * TypeVariableImpl} today. (We could probably then make {@code TypeVariableImpl} implement {@code
   * AnnotatedElement} so that we get partial compile-time checking.)
   *
   * <p>This workaround should be removed at a distant future time when <a

   * AnnotatedElement}, which {@code TypeVariable} began to extend only in Java 8. Those methods
   * refer only to types present under Android, so we could implement them in {@code
   * TypeVariableImpl} today. (We could probably then make {@code TypeVariableImpl} implement {@code
   * AnnotatedElement} so that we get partial compile-time checking.)
   *
   * <p>This workaround should be removed at a distant future time when <a

 * instance for non-daemon threads.
 *
 * The task runner is also responsible for releasing held threads when the library is unloaded.
 * This is for the benefit of container environments that implement code unloading.
 *
 * Most applications should share a process-wide [TaskRunner] and use queues for per-client work.
 */
class TaskRunner(
  val backend: Backend,
  internal val logger: Logger = TaskRunner.logger,

    }

    public void test_inheritance() {
        assertTrue("SystemMonitorTarget should extend MonitorTarget", MonitorTarget.class.isAssignableFrom(SystemMonitorTarget.class));
        assertTrue("SystemMonitorTarget should implement TimeoutTarget", TimeoutTarget.class.isAssignableFrom(SystemMonitorTarget.class));
    }

    public void test_constructor() {
        assertNotNull("Constructor should create instance", target);

    buffer[i] = buffer[j];
    buffer[j] = tmp;
  }

  /*
   * While the current implementation returns `this`, that's not something we mean to guarantee.
   * Anyway, the purpose of this method is to implement a BinaryOperator combiner for a Collector,
   * so its return value will get used naturally.
   */
  @SuppressWarnings("CanIgnoreReturnValueSuggester")
  TopKSelector<T> combine(TopKSelector<T> other) {

      }
    ```

### Upload Progress ([.kt][UploadProgressKotlin], [.java][UploadProgressJava])

Upload a file to a server (for example, Imgur) and report progress as the request body is being written. You can implement a ProgressListener to receive updates and wrap the original request body with ProgressRequestBody. This allows you to monitor how many bytes have been uploaded and calculate the percentage of completion.