These handlers are in charge of returning the default JSON responses when you `raise` an `HTTPException` and when the request has invalid data.

You can override these exception handlers with your own.

### Override request validation exceptions { #override-request-validation-exceptions }

When a request contains invalid data, **FastAPI** internally raises a `RequestValidationError`.

```

/// note | Technische Details

Sie können auch `from starlette.requests import Request` und `from starlette.responses import JSONResponse` verwenden.

**FastAPI** bietet dieselben `starlette.responses` auch via `fastapi.responses` an, als Annehmlichkeit für Sie, den Entwickler. Die meisten verfügbaren Responses kommen aber direkt von Starlette. Das Gleiche gilt für `Request`.

///

## Die Default-Exceptionhandler überschreiben

import org.mockito.junit.jupiter.MockitoSettings;
import org.mockito.quality.Strictness;

import jcifs.Configuration;
import jcifs.SmbConstants;
import jcifs.internal.CommonServerMessageBlockResponse;
import jcifs.internal.Request;
import jcifs.internal.smb2.io.Smb2ReadRequest;
import jcifs.internal.smb2.io.Smb2ReadResponse;

@ExtendWith(MockitoExtension.class)
@MockitoSettings(strictness = Strictness.LENIENT)
class SmbFileInputStreamTest {

     */
    @Nonnull
    default DependencyResolverResult collect(@Nonnull DependencyResolverRequest request) {
        if (request.getRequestType() != DependencyResolverRequest.RequestType.COLLECT) {
            throw new IllegalArgumentException("requestType should be COLLECT when calling collect()");
        }
        return resolve(request);
    }

    /**
     * Flattens a list of nodes.

    /**
     * Deletes documents matching the specified search parameters.
     *
     * @param request The HTTP servlet request
     * @param params The search request parameters to identify documents to delete
     * @return Number of documents deleted
     */
    public long deleteByQuery(final HttpServletRequest request, final SearchRequestParams params) {

Following this checklist to help us incorporate your
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- [ ] Your pull request should address just one issue, without pulling in other changes.
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  Note that commits might be squashed by a maintainer on merge.

    fakeDns["server"] = listOf(InetAddress.getLocalHost())

    val route = factory.newRoute()

    val request =
      Request
        .Builder()
        .url("https://server/robots.txt")
        .build()
    val response =
      Response
        .Builder()
        .request(request)
        .code(401)
        .header("WWW-Authenticate", "Basic realm=\"User Visible Realm\"")
        .protocol(HTTP_2)

         * direct dependencies from the request will be merged with the direct dependencies from the root dependency's
         * artifact descriptor, giving higher priority to the dependencies from the request.
         *
         * @param dependencies the direct dependencies, may be {@code null}
         * @return this request for chaining, never {@code null}
         */

                }
            }

            request.uid = uid;
            request.auth = auth;
            try {
                transport.send(request, response);
            } catch (final SmbException se) {
                if (request instanceof SmbComTreeConnectAndX) {
                    logoff(true);
                }
                request.digest = null;
                throw se;
            }

            throw new ArtifactResolutionException(
                    "Unknown error during artifact resolution, " + request + ", " + result.getExceptions(),
                    request.getArtifact(),
                    request.getRemoteRepositories());
        }
    }

    private static <T> List<T> toList(Collection<T> items) {
        return (items != null) ? new ArrayList<>(items) : null;
    }