* annotated with LargeTest.
 *
 * <p>For more discussion, see {@linkplain com.google.common.base.AndroidIncompatible the
 * documentation on another copy of this annotation}.
 */
@Retention(CLASS)
@Target({ANNOTATION_TYPE, CONSTRUCTOR, FIELD, METHOD, TYPE})
@GwtCompatible

 * annotated with LargeTest.
 *
 * <p>For more discussion, see {@linkplain com.google.common.base.AndroidIncompatible the
 * documentation on another copy of this annotation}.
 */
@Retention(CLASS)
@Target({ANNOTATION_TYPE, CONSTRUCTOR, FIELD, METHOD, TYPE})
@GwtCompatible

 * annotated with LargeTest.
 *
 * <p>For more discussion, see {@linkplain com.google.common.base.AndroidIncompatible the
 * documentation on another copy of this annotation}.
 */
@Retention(CLASS)
@Target({ANNOTATION_TYPE, CONSTRUCTOR, FIELD, METHOD, TYPE})
@GwtCompatible

 * annotated with LargeTest.
 *
 * <p>For more discussion, see {@linkplain com.google.common.base.AndroidIncompatible the
 * documentation on another copy of this annotation}.
 */
@Retention(CLASS)
@Target({ANNOTATION_TYPE, CONSTRUCTOR, FIELD, METHOD, TYPE})
@GwtCompatible

 * annotated with LargeTest.
 *
 * <p>For more discussion, see {@linkplain com.google.common.base.AndroidIncompatible the
 * documentation on another copy of this annotation}.
 */
@Retention(CLASS)
@Target({ANNOTATION_TYPE, CONSTRUCTOR, FIELD, METHOD, TYPE})
@GwtCompatible

 * annotated with MediumTest or LargeTest.
 *
 * <p>For more discussion, see {@linkplain com.google.common.base.AndroidIncompatible the
 * documentation on another copy of this annotation}.
 */
@Retention(CLASS)
@Target({ANNOTATION_TYPE, CONSTRUCTOR, FIELD, METHOD, TYPE})
@GwtCompatible

{* ../../docs_src/sub_applications/tutorial001.py hl[3, 6:8] *}

### Sub-application { #sub-application }

Then, create your sub-application, and its *path operations*.

This sub-application is just another standard FastAPI application, but this is the one that will be "mounted":

{* ../../docs_src/sub_applications/tutorial001.py hl[11, 14:16] *}

### Mount the sub-application { #mount-the-sub-application }

		}()
		time.Sleep(1 * time.Millisecond) // wait for goroutine to advance; ref=2

		// Unlock the 1st lock; ref=1 after this line
		nsLk.unlock("volume", "path", false)

		// Taking another lockMapMutex here allows queuing up additional lockers. This should
		// not be required but makes reproduction much easier.
		nsLk.lockMapMutex.Lock()

		// lk3 blocks.
		lk3ch := make(chan bool)
		go func() {

the developer identity, the device might also remove the permission to run apps from
that developer, and the exec wrapper will fail to install the new app. To avoid that,
install another app with the same developer identity but with a different bundle id.
That way, the permission to install apps is held on to while the primary app is

import java.util.Collection;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.TimeUnit;
import org.jspecify.annotations.Nullable;

/**
 * A {@link BlockingQueue} which forwards all its method calls to another {@link BlockingQueue}.
 * Subclasses should override one or more methods to modify the behavior of the backing collection
 * as desired per the <a href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator
 * pattern</a>.
 *