# Exceptions - `HTTPException` and `WebSocketException`

These are the exceptions that you can raise to show errors to the client.

When you raise an exception, as would happen with normal Python, the rest of the execution is aborted. This way you can raise these exceptions from anywhere in the code to abort a request and show the error to the client.

You can use:

* `HTTPException`
* `WebSocketException`

    private static final long serialVersionUID = 1533554330702215389L;

    /**
     * {@link IORuntimeException}を作成します。
     *
     * @param cause
     *            原因となった例外
     */
    public IORuntimeException(final IOException cause) {
        super("ECL0040", asArray(cause), cause);
    }

    /**
     * {@link ParserConfigurationRuntimeException}を作成します。
     *
     * @param cause
     *            原因となった例外
     */
    public ParserConfigurationRuntimeException(final ParserConfigurationException cause) {
        super("ECL0053", asArray(cause), cause);
    }

			},
		},
		ReflectValue: reflect.ValueOf(dest),
		Dest:         dest,
	}

	stmt.Schema = s

	values := ConvertToCreateValues(stmt)
	expected := clause.Values{
		// column has value + defaultValue column has value (which should have a stable order)
		Columns: []clause.Column{{Name: "name"}, {Name: "email"}, {Name: "age"}, {Name: "id"}},
		Values: [][]interface{}{
			{"alice", "email", 18, 1},
			{"bob", "email", 19, 2},
		},
	}

     * {@link ClassNotFoundRuntimeException}を作成します。
     *
     * @param cause
     *            原因となった例外
     */
    public ClassNotFoundRuntimeException(final ClassNotFoundException cause) {
        this(null, cause);
    }

    /**
     * {@link ClassNotFoundRuntimeException}を作成します。
     *
     * @param className
     *            クラス名
     * @param cause
     *            原因となった例外
     */

        username: str = payload.get("sub")
        if username is None:
            raise credentials_exception
        token_data = TokenData(username=username)
    except JWTError:
        raise credentials_exception
    user = get_user(fake_users_db, username=token_data.username)
    if user is None:
        raise credentials_exception
    return user


async def get_current_active_user(

   * non-nullable {@code cause}, as many users expect to find one.
   */
  public UncheckedExecutionException(@CheckForNull String message, @CheckForNull Throwable cause) {
    super(message, cause);
  }

  /**
   * Creates a new instance with {@code null} as its detail message and the given cause. Prefer to
   * provide a non-nullable {@code cause}, as many users expect to find one.

    Note over client,tasks: Can raise exception for dependency, handled after response is sent
    Note over client,operation: Can raise HTTPException and can change the response
    client ->> dep: Start request
    Note over dep: Run code up to yield
    opt raise
        dep -->> handler: Raise HTTPException
        handler -->> client: HTTP error response
        dep -->> dep: Raise other exception
    end

        } catch (ComponentLookupException e) {
            Throwable cause = e.getCause();
            while (cause != null && !(cause instanceof LinkageError) && !(cause instanceof ClassNotFoundException)) {
                cause = cause.getCause();
            }

            if ((cause instanceof NoClassDefFoundError) || (cause instanceof ClassNotFoundException)) {

     *
     * @param targetClass
     *            ターゲットクラス
     * @param cause
     *            原因となった例外
     */
    public InstantiationRuntimeException(final Class<?> targetClass, final InstantiationException cause) {
        super("ECL0041", asArray(targetClass.getName(), cause), cause);
        this.targetClass = targetClass;
    }

    @Override