},
                            },
                            "description": "The GraphiQL integrated development environment.",
                        },
                        "404": {
                            "description": "Not found if GraphiQL or query via GET are not enabled.",
                        },
                    },
                    "summary": "Handle Http Get",
                },

        data3.setHttpStatusCode(404);

        // All should complete without error and without modification
        processor.process(data1);
        processor.process(data2);
        processor.process(data3);

        // data3 should still have its original values
        assertEquals("https://example.com", data3.getUrl());
        assertEquals(404, data3.getHttpStatusCode());
    }

Os status codes na faixa dos 400 significam que houve um erro por parte do cliente.

Você se lembra de todos aqueles erros (e piadas) a respeito do "**404 Not Found**"?

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

Para retornar ao cliente *responses* HTTP com erros, use o `HTTPException`.

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

Los códigos de estado en el rango de 400 significan que hubo un error por parte del cliente.

¿Recuerdas todos esos errores de **"404 Not Found"** (y chistes)?

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

Para devolver responses HTTP con errores al cliente, usa `HTTPException`.

### Importa `HTTPException` { #import-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 {

    /**

    assert response.json() == {"item": "The Foo Wrestlers"}


def test_get_item_not_found_header():
    response = client.get("/items-header/bar")
    assert response.status_code == 404, response.text
    assert response.headers.get("x-error") == "There goes my error"
    assert response.json() == {"detail": "Item not found"}


def test_openapi_schema():
    response = client.get("/openapi.json")

    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());

            long changeTime = creationTime + 3000000L;
            SMBUtil.writeInt8(changeTime, buffer, bufferIndex + 32);
            // Allocation Size (8 bytes)
            SMBUtil.writeInt8(4096, buffer, bufferIndex + 40);
            // End of File (8 bytes)
            SMBUtil.writeInt8(1024, buffer, bufferIndex + 48);
            // File Attributes (4 bytes)

pkg syscall (freebsd-386), const ENOTRECOVERABLE Errno
pkg syscall (freebsd-386), const EOWNERDEAD = 96
pkg syscall (freebsd-386), const EOWNERDEAD Errno
pkg syscall (freebsd-386), const EV_DROP = 4096
pkg syscall (freebsd-386), const EV_DROP ideal-int
pkg syscall (freebsd-386), const IPPROTO_MPLS = 137
pkg syscall (freebsd-386), const IPPROTO_MPLS ideal-int
pkg syscall (freebsd-386), const MAP_ALIGNED_SUPER = 16777216

        byte[] buffer = new byte[22];
        int idFileSystem = 0xABCDEF00;
        int sectPerAlloc = 4;
        long alloc = 500000L;
        long free = 250000L;
        int bytesPerSect = 4096;

        // Encode test data
        int offset = 0;
        SMBUtil.writeInt4(idFileSystem, buffer, offset);
        offset += 4;
        SMBUtil.writeInt4(sectPerAlloc, buffer, offset);
        offset += 4;