/// tip

You can use `async` or regular functions.

**FastAPI** will do the right thing with each, the same as with normal dependencies.

///

## A dependency with `yield` and `try` { #a-dependency-with-yield-and-try }

If you use a `try` block in a dependency with `yield`, you'll receive any exception that was thrown when using the dependency.

        uses: actions/setup-java@v5
        with:
          distribution: 'zulu'
          java-version: 8.0.242

      - name: Configure JDK
        uses: actions/setup-java@v5
        with:
          distribution: 'zulu'
          java-version: 11

      - name: Configure JDK
        uses: actions/setup-java@v5
        with:
          distribution: 'zulu'
          java-version: 17

<img src="/img/tutorial/security/image11.png">

## JWT token with scopes { #jwt-token-with-scopes }

Now, modify the token *path operation* to return the scopes requested.

We are still using the same `OAuth2PasswordRequestForm`. It includes a property `scopes` with a `list` of `str`, with each scope it received in the request.

        // Test constructor with null cause
        String message = "Test with null cause";
        FessSystemException exception = new FessSystemException(message, null);

        assertEquals(message, exception.getMessage());
        assertNull(exception.getCause());
    }

    public void test_constructor_withNullMessageAndCause() {
        // Test constructor with both null message and cause

    }

    // Test getBucketOrder with count.desc
    public void test_getBucketOrder_countDesc() {
        facetInfo.sort = "count.desc";
        BucketOrder order = facetInfo.getBucketOrder();
        assertNotNull(order);
        assertEquals(BucketOrder.count(false), order);
    }

    // Test getBucketOrder with count.asc
    public void test_getBucketOrder_countAsc() {

- **5-15% faster** type conversions with pattern matching and switch expressions
- **Reduced memory allocation** in collection operations and bean copying
- **Improved reflection performance** with cached descriptors and optimized field access
- **Enhanced collection operations** with Java 21 sequenced collections support

        // Test with null name
        String[] values = { "value1" };
        RequestParameter param = new RequestParameter(null, values);

        assertNull(param.getName());
        assertNotNull(param.getValues());
        assertEquals(1, param.getValues().length);
    }

    public void test_constructor_withEmptyName() {
        // Test with empty name
        String name = "";

But at the same time, functions defined with `async def` have to be "awaited". So, functions with `async def` can only be called inside of functions defined with `async def` too.

So, about the egg and the chicken, how do you call the first `async` function?

        // Test constructor with message only
        String message = "SSO authentication failed";
        SsoProcessException exception = new SsoProcessException(message);

        assertEquals(message, exception.getMessage());
        assertNull(exception.getCause());
    }

    public void test_constructor_withMessageAndCause() {
        // Test constructor with message and Exception cause

    /**
     * Test AutoCloseable implementation
     */
    @Test
    @DisplayName("Test AutoCloseable implementation with try-with-resources")
    public void testAutoCloseableImpl() {
        String testPassword = "AutoCloseablePass123!";
        NtlmPasswordAuthenticator authRef;

        // Use try-with-resources
        try (NtlmPasswordAuthenticator auth = new NtlmPasswordAuthenticator("user", testPassword)) {