Reflection.initialize(A.class);
    assertEquals(1, classesInitialized);

    Reflection.initialize(
        A.class, // Already initialized (above)
        B.class, C.class);
    assertEquals(3, classesInitialized);
  }

  public void testNullPointers() {
    new NullPointerTester().testAllPublicStaticMethods(Reflection.class);
  }

            <div class="container-fluid">
                <div class="row mb-2">
                    <div class="col-sm-6">
                        <h1>
                            <la:message key="labels.dict_protwords_title"/>
                        </h1>
                    </div>
                    <div class="col-sm-6">
                        <ol class="breadcrumb float-sm-right">

            <div class="container-fluid">
                <div class="row mb-2">
                    <div class="col-sm-6">
                        <h1>
                            <la:message key="labels.dict_stopwords_title"/>
                        </h1>
                    </div>
                    <div class="col-sm-6">
                        <ol class="breadcrumb float-sm-right">

 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public class UnmodifiableListIteratorTest extends TestCase {
  @SuppressWarnings("DoNotCall")
  public void testRemove() {
    Iterator<String> iterator = create();

    assertTrue(iterator.hasNext());
    assertEquals("a", iterator.next());
    assertThrows(UnsupportedOperationException.class, () -> iterator.remove());
  }

  @SuppressWarnings("DoNotCall")

            <div class="container-fluid">
                <div class="row mb-2">
                    <div class="col-sm-6">
                        <h1>
                            <la:message key="labels.labeltype_title_details"/>
                        </h1>
                    </div>
                    <div class="col-sm-6">
                        <jsp:include page="/WEB-INF/view/common/admin/crud/breadcrumb.jsp"></jsp:include>

        bind(MavenProject.class)
                .toProvider(MojoExecutionScope.seededKeyProvider(MavenProject.class))
                .in(scope);
        bind(MojoExecution.class)
                .toProvider(MojoExecutionScope.seededKeyProvider(MojoExecution.class))
                .in(scope);
        bind(Log.class)
                .toProvider(MojoExecutionScope.seededKeyProvider(Log.class))

  public void testToStringHelperLenient_localInnerClass() {
    class LocalInnerClass {}
    String toTest = MoreObjects.toStringHelper(new LocalInnerClass()).toString();
    assertTrue(toTest, toTest.matches(".*\\{\\}"));
  }

  @GwtIncompatible // Class names are obfuscated in GWT
  public void testToStringHelper_localInnerNestedClass() {
    class LocalInnerClass {
      class LocalInnerNestedClass {}
    }
    String toTest =

 *
 * @author Chris Nokleberg
 */

@SuppressWarnings("deprecation") // tests of a deprecated method
public class FilesCreateTempDirTest extends TestCase {
  public void testCreateTempDir() throws IOException {
    if (JAVA_IO_TMPDIR.value().equals("/sdcard")) {
      assertThrows(IllegalStateException.class, Files::createTempDir);
      return;
    }
    File temp = Files.createTempDir();
    try {

It might be useful, for example, to return custom headers or cookies.

## Return a `Response`

In fact, you can return any `Response` or any sub-class of it.

/// tip

`JSONResponse` itself is a sub-class of `Response`.

///

And when you return a `Response`, **FastAPI** will pass it directly.

```Python hl_lines="8-9  11  14"
{!../../docs_src/middleware/tutorial001.py!}
```

/// tip

Keep in mind that custom proprietary headers can be added <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">using the 'X-' prefix</a>.