integration-tx-api/src/main/java/org/apache/seata/integration/tx/api/interceptor/ActionContextUtil.java [132:153]:
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    public static Object getByIndex(@Nonnull ParamType paramType, @Nonnull String paramName, @Nonnull Object paramValue, int index) {
        if (paramValue instanceof List) {
            @SuppressWarnings("unchecked")
            List<Object> list = (List<Object>) paramValue;
            if (list.isEmpty()) {
                return null;
            }
            if (list.size() <= index) {
                if (LOGGER.isDebugEnabled()) {
                    LOGGER.debug("The index '{}' is out of bounds for the list {} named '{}'," +
                            " whose size is '{}', so pass this {}", index, paramType.getCode(), paramName, list.size(), paramType.getCode());
                }
                return null;
            }
            paramValue = list.get(index);
        } else {
            LOGGER.warn("the {} named '{}' is not a `List`, so the 'index' field of '@{}' cannot be used on it",
                    paramType.getCode(), paramName, BusinessActionContextParameter.class.getSimpleName());
        }

        return paramValue;
    }
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compatible/src/main/java/io/seata/integration/tx/api/interceptor/ActionContextUtil.java [95:116]:
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    private static Object getByIndex(@Nonnull ParamType paramType, @Nonnull String paramName, @Nonnull Object paramValue, int index) {
        if (paramValue instanceof List) {
            @SuppressWarnings("unchecked")
            List<Object> list = (List<Object>) paramValue;
            if (list.isEmpty()) {
                return null;
            }
            if (list.size() <= index) {
                if (LOGGER.isDebugEnabled()) {
                    LOGGER.debug("The index '{}' is out of bounds for the list {} named '{}'," +
                            " whose size is '{}', so pass this {}", index, paramType.getCode(), paramName, list.size(), paramType.getCode());
                }
                return null;
            }
            paramValue = list.get(index);
        } else {
            LOGGER.warn("the {} named '{}' is not a `List`, so the 'index' field of '@{}' cannot be used on it",
                    paramType.getCode(), paramName, BusinessActionContextParameter.class.getSimpleName());
        }

        return paramValue;
    }
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