}
            fail("Should not reach this point");
        } catch (IOException e) {
            assertEquals("Resource is null", e.getMessage());
            // No NullPointerException should be thrown when exiting try-with-resources
        }
    }

    /**
     * Test resource loading with missing resource.
     * Demonstrates that null InputStream is handled correctly.
     */
    @Test

    await do_stuff()
```

When you create a context manager or an async context manager like above, what it does is that, before entering the `with` block, it will execute the code before the `yield`, and after exiting the `with` block, it will execute the code after the `yield`.

In our code example above, we don't use it directly, but we pass it to FastAPI for it to use it.

  }

  /**
   * Add a shutdown hook to wait for thread completion in the given {@link ExecutorService service}.
   * This is useful if the given service uses daemon threads, and we want to keep the JVM from
   * exiting immediately on shutdown, instead giving these daemon threads a chance to terminate
   * normally.
   *
   * @param service ExecutorService which uses daemon threads

        Executors.newSingleThreadScheduledExecutor(new ThreadFactoryImpl());
    // Add a listener to shut down the executor after the service is stopped. This ensures that the
    // JVM shutdown will not be prevented from exiting after this service has stopped or failed.
    // Technically this listener is added after start() was called so it is a little gross, but it

        Executors.newSingleThreadScheduledExecutor(new ThreadFactoryImpl());
    // Add a listener to shut down the executor after the service is stopped. This ensures that the
    // JVM shutdown will not be prevented from exiting after this service has stopped or failed.
    // Technically this listener is added after start() was called so it is a little gross, but it

      }
    }
    connection.writePing()
    connection.shutdown(ErrorCode.PROTOCOL_ERROR)
    assertThat(connection.openStreamCount()).isEqualTo(1)
    connection.awaitPong() // Prevent the peer from exiting prematurely.

    // Verify the peer received what was expected.
    val synStream1 = peer.takeFrame()
    assertThat(synStream1.type).isEqualTo(Http2.TYPE_HEADERS)
    val pingFrame = peer.takeFrame()

import org.lastaflute.web.validation.Required;
import org.lastaflute.web.validation.theme.conversion.ValidateTypeFailure;

/**
 * Form class for editing protected words dictionary entries in the admin interface.
 * This form extends CreateForm to include fields necessary for updating existing protected words entries.
 * Protected words are terms that should not be stemmed or modified during text analysis.
 *
 */

import org.lastaflute.web.validation.theme.conversion.ValidateTypeFailure;

import jakarta.validation.constraints.Size;

/**
 * Form class for editing elevate word configurations in the admin interface.
 * This form extends CreateForm to include fields necessary for updating existing elevate word entries,
 * including tracking information for optimistic locking and audit trails.

import org.lastaflute.web.validation.theme.conversion.ValidateTypeFailure;

import jakarta.validation.constraints.Size;

/**
 * Form class for editing request header configurations in the admin interface.
 * This form extends CreateForm to include fields necessary for updating existing request header entries,
 * including tracking information for optimistic locking and audit trails.

     * Mode for listing records.
     */
    public static final int LIST = 0;

    /**
     * Mode for creating a new record.
     */
    public static final int CREATE = 1;

    /**
     * Mode for editing an existing record.
     */
    public static final int EDIT = 2;

    /**
     * Mode for deleting a record.
     */
    public static final int DELETE = 3;

    /**
     * Mode for viewing record details.