If you need to use some of the FastAPI-specific tools for parameters like `Body`, `Query`, `Form`, etc. with Pydantic v1 models, you can import them from `fastapi.temp_pydantic_v1_params` while you finish the migration to Pydantic v2:

{* ../../docs_src/pydantic_v1_in_v2/tutorial004_an_py310.py hl[4,18] *}

### Migrate in steps { #migrate-in-steps }

/// tip

    boolean lockAcquired = tryLockUninterruptibly(lock, 500, MILLISECONDS);

    assertFalse(lockAcquired);
    assertAtLeastTimePassed(stopwatch, 500);
    assertNotInterrupted();

    // finish locking thread
    lockThread.interrupt();
  }

  public void testTryLockTimeoutNotExceeded() {
    Stopwatch stopwatch = Stopwatch.createStarted();
    Lock lock = new ReentrantLock();

	// along stderr from adb.
	cmd.Stderr = struct{ io.Writer }{os.Stderr}
	err := cmd.Run()

	// Before we process err, flush any further output and get the exit code.
	exitCode, err2 := filter.Finish()

	if err != nil {
		return 0, fmt.Errorf("adb exec-out %s: %v", args, err)
	}
	return exitCode, err2
}

func adb(args ...string) error {
	if out, err := adbCmd(args...).CombinedOutput(); err != nil {

///

### `startup` and `shutdown` together { #startup-and-shutdown-together }

There's a high chance that the logic for your *startup* and *shutdown* is connected, you might want to start something and then finish it, acquire a resource and then release it, etc.

Doing that in separated functions that don't share logic or variables together is more difficult as you would need to store values in global variables or similar tricks.

     */
    RecordingRunnable earlyListener = new RecordingRunnable();
    listenable.addListener(earlyListener, directExecutor());

    input.allowGetToComplete.countDown();
    // Now give the get() thread time to finish:
    assertTrue(earlyListener.wasRun.await(1, SECONDS));

    // Now test an additional addListener call, which will be run in-thread:
    RecordingRunnable lateListener = new RecordingRunnable();

./mc admin decom start myminio/ http://localhost:9000/tmp/xl/{1...10}/disk{0...1}

count=0
until $(./mc admin decom status myminio/ | grep -q Complete); do
	echo "waiting for decom to finish..."
	count=$((count + 1))
	if [ ${count} -eq 120 ]; then
		./mc cat /tmp/expanded_*.log
	fi
	sleep 1
done

kill $pid_1
kill $pid_2

sleep 5

     */
    RecordingRunnable earlyListener = new RecordingRunnable();
    listenable.addListener(earlyListener, directExecutor());

    input.allowGetToComplete.countDown();
    // Now give the get() thread time to finish:
    assertTrue(earlyListener.wasRun.await(1, SECONDS));

    // Now test an additional addListener call, which will be run in-thread:
    RecordingRunnable lateListener = new RecordingRunnable();

   * to calling it exactly once.
   *
   * @since 10.0 (present in 1.0 as {@code run})
   */
  public void execute() {
    // Lock while we update our state so the add method above will finish adding any listeners
    // before we start to run them.
    RunnableExecutorPair list;
    synchronized (lock) {
      if (executed) {
        return;
      }
      executed = true;

./mc admin decom start myminio/ http://localhost:9000/tmp/xl/{1...10}/disk{0...1}

until $(./mc admin decom status myminio/ | grep -q Complete); do
	echo "waiting for decom to finish..."
	sleep 1s
done

kill $pid_1
kill $pid_2

sleep 5s

(minio server --address ":9001" http://localhost:9001/tmp/xl/{11...30}/disk{0...3} 2>&1 >/tmp/removed.log) &
pid=$!

sleep 30s

import java.util.concurrent.TimeoutException;
import org.jspecify.annotations.Nullable;

/**
 * Implementation of {@code Futures#withTimeout}.
 *
 * <p>Future that delegates to another but will finish early (via a {@link TimeoutException} wrapped
 * in an {@link ExecutionException}) if the specified duration expires. The delegate future is
 * interrupted and cancelled if it times out.
 */
@J2ktIncompatible
@GwtIncompatible