public static JwtConvertStrategy newInstance(final String handleType) {
        String type = handleType;
        if (StringUtils.isBlank(type)) {
            type = "default";
        }
        return ExtensionLoader.getExtensionLoader(JwtConvertStrategy.class).getJoin(type);
    }
new instance jwtConvertStrategy.

@param handleType handleType
@return jwtConvertStrategy
shenyu-plugin/shenyu-plugin-security/shenyu-plugin-jwt/src/main/java/org/apache/shenyu/plugin/jwt/strategy/JwtConvertStrategyFactory.java