Це схоже на HTTP статус-коди 200 (від 200 до 299). Ці "200" статус-коди означають, що запит пройшов успішно.

Статус-коди в діапазоні 400 означають, що сталася помилка з боку клієнта.

Пам'ятаєте всі ці помилки **404 Not Found** (і жарти про них)?

## Використання `HTTPException`

Щоб повернути HTTP-відповіді з помилками клієнту, використовуйте `HTTPException`.

### Імпорт `HTTPException`

package org.codelibs.fess.app.web.error;

import org.codelibs.fess.app.web.base.FessSearchAction;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.HtmlResponse;

/**
 * Action class for handling HTTP 404 Not Found error pages.
 * This action displays error pages when the requested resource
 * cannot be found on the server.
 */
public class ErrorNotfoundAction extends FessSearchAction {

    /**

            // Buffer 3: PRIVSVR_CHECKSUM
            writeLittleEndianInt(baos, PacConstants.PRIVSVR_CHECKSUM);
            writeLittleEndianInt(baos, 20); // signature size
            writeLittleEndianLong(baos, 104); // offset (aligned)

            // Add buffer data
            while (baos.size() < 72) {
                baos.write(0);
            }
            // LOGON_INFO data (minimal)

    <latest>1.0.12</latest>
    <release>1.0.12</release>
    <versions>
      <version>1.0.0</version>
      <version>1.0.1</version>
      <version>1.0.2</version>
      <version>1.0.3</version>
      <version>1.0.4</version>
      <version>1.0.5</version>
      <version>1.0.6</version>
      <version>1.0.7</version>
      <version>1.0.8</version>
      <version>1.0.9</version>
      <version>1.0.10</version>

    assertEquals(range, range.span(Range.closed(6, 8)));

    // equal
    assertEquals(range, range.span(range));

    // enclosing with same start
    assertEquals(Range.closed(4, 10), range.span(Range.closed(4, 10)));
    assertEquals(Range.atLeast(4), range.span(Range.atLeast(4)));

    // enclosing with same end
    assertEquals(Range.closed(2, 8), range.span(Range.closed(2, 8)));

The status codes in the 400 range mean that there was an error from the client.

Remember all those **"404 Not Found"** errors (and jokes)?

## Use `HTTPException` { #use-httpexception }

To return HTTP responses with errors to the client you use `HTTPException`.

### Import `HTTPException` { #import-httpexception }

  <modelVersion>4.0.0</modelVersion>

  <parent>
    <groupId>org.apache.maven</groupId>
    <artifactId>maven-compat-modules</artifactId>
    <version>4.1.0-SNAPSHOT</version>
  </parent>

  <artifactId>maven-builder-support</artifactId>

  <name>Maven Builder Support (deprecated)</name>
  <description>Support for descriptor builders (model, setting, toolchains)</description>

    Request request = new Request.Builder()
            .url(url)
            .build();
    try (Response response = client.newCall(request).execute()) {
      assertTrue(response.code() == 200 || response.code() == 404);
      assertEquals(Protocol.HTTP_2, response.protocol());

      for (Certificate c: response.handshake().peerCertificates()) {
        X509Certificate x = (X509Certificate) c;
        System.out.println(x.getSubjectDN());

package cmd

import (
	"context"
	"sync"

	"github.com/minio/madmin-go/v3"
	"github.com/minio/minio/internal/pubsub"
)

const bootstrapTraceLimit = 4 << 10

type bootstrapTracer struct {
	mu   sync.RWMutex
	info []madmin.TraceInfo
}

var globalBootstrapTracer = &bootstrapTracer{}

func (bs *bootstrapTracer) Record(info madmin.TraceInfo) {
	bs.mu.Lock()

  <modelVersion>4.0.0</modelVersion>

  <parent>
    <groupId>org.apache.maven</groupId>
    <artifactId>maven-api</artifactId>
    <version>4.1.0-SNAPSHOT</version>
  </parent>

  <artifactId>maven-api-core</artifactId>
  <name>Maven 4 API :: Core</name>
  <description>Maven 4 API - Maven Core API</description>

  <dependencies>
    <dependency>