In this example, the messages will be written to the `log.txt` file *after* the response is sent.

If there was a query in the request, it will be written to the log in a background task.

And then another background task generated at the *path operation function* will write a message using the `email` path parameter.

## Technical Details { #technical-details }

     *
     * @return The exception that caused this problem or {@code null} if not applicable.
     */
    Exception getException();

    /**
     * Gets the message that describes this problem.
     *
     * @return The message describing this problem, never {@code null}.
     */
    String getMessage();

    /**
     * Gets the severity level of this problem.
     *

    val response =
      Response
        .Builder()
        .request(request)
        .code(401)
        .header("WWW-Authenticate", "Basic realm=\"User Visible Realm\"")
        .protocol(HTTP_2)
        .message("Unauthorized")
        .build()
    val authRequest = authenticator.authenticate(route, response)

    assertEquals(
      "Basic ${RecordingAuthenticator.BASE_64_CREDENTIALS}",

    /**
     * First fragment flag - indicates first fragment of a multi-fragment message
     */
    int DCERPC_FIRST_FRAG = 0x01; /* First fragment */
    /**
     * Last fragment flag - indicates last fragment of a multi-fragment message
     */
    int DCERPC_LAST_FRAG = 0x02; /* Last fragment */
    /**
     * Pending cancel flag - indicates cancel was pending at sender

            return buf.toString();
        };
        final String message;
        if (Constants.TRUE.equalsIgnoreCase(ComponentUtil.getFessConfig().getApiJsonResponseExceptionIncluded())) {
            message = escapeJsonKeyValue(MESSAGE_FIELD, stacktraceString.get());
        } else {
            final String errorCode = UUID.randomUUID().toString();
            message = escapeJsonKeyValue("error_code:", errorCode);

                                </div>
                            </div>
                            <div class="card-body">
                                    <%-- Message --%>
                                <div>
                                    <la:info id="msg" message="true">
                                        <div class="alert alert-success">${msg}</div>
                                    </la:info>

  }

  @Test
  fun testSkipUncompressNoContentResponse() {
    val response =
      response("https://httpbin.org/brotli", EMPTY) {
        header("Content-Encoding", "br")
        code(204)
        message("NO CONTENT")
      }

    val same = brotliInterceptor.decompress(response)

    val responseString = same.body.string()
    assertThat(responseString).isEmpty()
  }

  private fun response(

    ExampleClassUnderTest.foo();
    LogRecord record = handler.getStoredLogRecords().get(0);
    assertEquals(Level.INFO, record.getLevel());
    assertThat(record.getMessage()).isEqualTo("message");
    assertThat(record.getThrown()).isEqualTo(EXCEPTION);
  }

  public void testConcurrentModification() throws Exception {
    // Tests for the absence of a bug where logging while iterating over the

├── exception/   # Runtime exception wrappers
├── io/          # I/O & resource utilities
├── jar/         # JAR file utilities
├── lang/        # Reflection & language utilities
├── log/         # Logging utilities
├── message/     # Message resource handling
├── misc/        # AssertionUtil, Base64Util, etc.
├── naming/      # JNDI naming utilities
├── net/         # Network & URL utilities
├── nio/         # NIO file utilities

 * This validator provides validation functionality for Fess web actions with custom
 * message handling and runtime group validation.
 *
 * @param <MESSAGES> the type of user messages used by this validator
 */
public class FessActionValidator<MESSAGES extends UserMessages> extends ActionValidator<MESSAGES> {

    /**
     * Constructs a new FessActionValidator with the specified components.
     *