fix(deps): update dependency com.alibaba:fastjson to v2.0.61 by renovate[bot] · Pull Request #102 · GGGGGHT/java8

renovate · 2023-03-20T02:40:13Z

ℹ️ Note

This PR body was truncated due to platform limits.

This PR contains the following updates:

Package	Change	Age	Confidence
com.alibaba:fastjson	`2.0.25` → `2.0.61`

Release Notes

alibaba/fastjson2 (com.alibaba:fastjson)

`v2.0.61`: fastjson 2.0.61版本发布

Compare Source

FASTJSON 2.0.61 Release Notes

Release Date: 07 Feb 2026
Tag: 2.0.61 (170f71f)

Overview

This is a regularly scheduled maintenance release with feature enhancements, performance improvements, and bug fixes. Users should upgrade as needed.

Changes & Bug Fixes

Fixed issue where Jackson's @JsonProperty on methods was being ignored in record types #3893
Fixed multiple ArrayIndexOutOfBoundsException issues in JSONReaderUTF8, JSONReaderASCII, and JSONReader #3883
Improved performance when parsing JSON with numerous escape characters #3889
Fixed conflict where global Date writer overrides @JSONField format #3864
Fixed TypeUtils.castToTimestamp compatibility issues when upgrading from 1.2.83 #3906 #3907
Added support for serializing non-finite numbers (NaN, Infinity) as strings #3911
Added default value support for getString and other getXXX methods #3880
Fixed double quotes issue in TypeUtils.cast with Long global converter #3932
Added Java 8 TimeModule support including improved YearMonth support #3934 #3935
Fixed scientific notation floating point deserialization errors #3917 #3939 #3955
Added serialization support for org.w3c.dom.Node #3960
Fixed exception when parsing object keys with emoji and escape characters #3928
Fixed generic type inference for List subclasses during deserialization #3926
Added support for custom error messages in JSON Schema validation #1559
Added parse(InputStream) overload with default context #3946
Fixed DirectByteBuffer UnsupportedOperationException for java.nio.ByteBuffer#array #3894
Added support for composing multiple filters (PropertyFilter, PropertyPreFilter, etc.) #3877
Fixed incorrect overflow check when parsing BigInteger as Double
Enhanced security checks in hex digit processing
Improved readString performance in JSONReaderUTF8/JSONReaderUTF16
Fixed various issues with WriteNulls, ErrorOnNullForPrimitives, NotWriteDefaultValue, and other features
Added ProGuard rules for fields affected by reflection operations
Fixed cast error when using -Dfastjson2.creator=reflect #1563

Maven Dependency Configuration

Standard Version

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.61</version>
</dependency>

Android 5 Optimized Version

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.61.android5</version>
</dependency>

Android 8 Optimized Version (supports java.time and Optional)

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.61.android8</version>
</dependency>

1.x Compatible Version

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>2.0.61</version>
</dependency>

Spring 5 Extension

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring5</artifactId>
    <version>2.0.61</version>
</dependency>

Spring 6 Extension

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring6</artifactId>
    <version>2.0.61</version>
</dependency>

JAX-RS Extension

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-jaxrs</artifactId>
    <version>2.0.61</version>
</dependency>

JAX-RS Jakarta Extension

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-jaxrs-jakarta</artifactId>
    <version>2.0.61</version>
</dependency>

FASTJSON 2.0.61 发布说明

发布日期： 2026年2月7日
标签： 2.0.61 (170f71f)

概述

这是定期维护版本，包含功能增强、性能改进和问题修复。建议用户根据需要升级。

变更与问题修复

修复 Jackson 的 @JsonProperty 注解在 record 类型的方法上被忽略的问题 #3893
修复 JSONReaderUTF8、JSONReaderASCII 和 JSONReader 中的多个 ArrayIndexOutOfBoundsException 问题 #3883
优化包含大量转义字符的 JSON 解析性能 #3889
修复全局 Date writer 覆盖 @JSONField format 格式的冲突问题 #3864
修复从 1.2.83 版本升级时 TypeUtils.castToTimestamp 的兼容性问题 #3906 #3907
新增支持将非有限数字（NaN、Infinity）序列化为字符串 #3911
为 getString 等 getXXX 方法新增默认值参数支持 #3880
修复使用 Long 全局转换器时 TypeUtils.cast 出现双引号的问题 #3932
新增 Java 8 TimeModule 支持，包括改进的 YearMonth 支持 #3934 #3935
修复科学计数法浮点数反序列化错误 #3917 #3939 #3955
新增对 org.w3c.dom.Node 的序列化支持 #3960
修复解析包含 emoji 和转义字符的对象键时的异常 #3928
修复 List 子类在反序列化时无法自动推断泛型类型的问题 #3926
新增 JSON Schema 校验时支持自定义错误消息 #1559
新增带默认上下文的 parse(InputStream) 重载方法 #3946
修复 DirectByteBuffer 调用 java.nio.ByteBuffer#array 时的 UnsupportedOperationException #3894
新增支持组合多个过滤器（PropertyFilter、PropertyPreFilter 等）#3877
修复将 BigInteger 解析为 Double 时溢出检查不正确的问题
增强十六进制数字处理的安全检查
改进 JSONReaderUTF8/JSONReaderUTF16 的 readString 性能
修复 WriteNulls、ErrorOnNullForPrimitives、NotWriteDefaultValue 等特性的多个问题
为受反射操作影响的字段添加 ProGuard 规则
修复使用 -Dfastjson2.creator=reflect 时的类型转换错误 #1563

Maven 依赖配置

标准版本

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.61</version>
</dependency>

Android 5 优化版本

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.61.android5</version>
</dependency>

Android 8 优化版本（支持 java.time 和 Optional）

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.61.android8</version>
</dependency>

1.x 兼容版本

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>2.0.61</version>
</dependency>

Spring 5 扩展

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring5</artifactId>
    <version>2.0.61</version>
</dependency>

Spring 6 扩展

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring6</artifactId>
    <version>2.0.61</version>
</dependency>

JAX-RS 扩展

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-jaxrs</artifactId>
    <version>2.0.61</version>
</dependency>

JAX-RS Jakarta 扩展

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-jaxrs-jakarta</artifactId>
    <version>2.0.61</version>
</dependency>

`v2.0.60`: fastjson 2.0.60发布

Compare Source

这又是一个定期维护的功能增强BUG FIX版本，大家按需升级。

Issues

修复dubbo使用时报错not support none-Serializable的问题 #3499
修复dubbo使用时字段带缺省值是序列化丢失字段的问题 #3765 #3842
增加JSONObject.getIntValue方法处理默认值 #3772
JSONArray.getJSONObject行为保持和JSONObject一样 #2989
修复JSONField(deserialize = false)在public字段不生效的问题
增强日期格式反序列化支持 #3102
补充fastjson2-extension-jaxrs-jakarta的发版 #3767
修复枚举使用@ JsonProperties之后结果错误的问题 #3799
修复某些场景反序列化java.util.Collections#EMPTY_LIST报错的问题 #3828
修复JSONPath.eval(jsonString, path)和fastjson 1.x某些场景不兼容的问题 #3825
反序列化时增加Feature.DisableStringArrayUnwrapping #3757
修复codegen的问题 #3836 #3833

MAVEN依赖配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.60</version>
</dependency>

android5针对优化版本

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.60.android5</version>
</dependency>

android8针对优化版本
这个版本支持java.time和Optional

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.60.android8</version>
</dependency>

1.x 兼容版本

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>2.0.60</version>
</dependency>

Spring 5 extension配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring5</artifactId>
    <version>2.0.60</version>
</dependency>

Spring 6 extension配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring6</artifactId>
    <version>2.0.60</version>
</dependency>

3. 相关链接

FASTJSON 1.x用户升级指南 https://github.com/alibaba/fastjson2/wiki/fastjson_1_upgrade_cn
相关issues https://github.com/alibaba/fastjson2/milestone/60
代码tag https://github.com/alibaba/fastjson2/tree/2.0.60
Maven下载 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.60/
Android5特别优化版本 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.60.android5/
Android8特别优化版本 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.60.android8/
1.x兼容版本 https://repo1.maven.org/maven2/com/alibaba/fastjson/2.0.60/
性能测试报告 https://github.com/alibaba/fastjson2/blob/main/docs/benchmark/benchmark_2.0.60.md

`v2.0.59`: fastjson 2.0.59发布

Compare Source

这又是一个定期维护的功能增强BUG FIX版本，大家按需升级。

Issues

修复在部分Android机型上崩溃的问题 #3769
修复Android分支processObjectInputSingleItemArray()函数内部产生空指针的问题 #3770
JSONArray/JSONObject增加getLocalDate/getLocalDateTime方法
修复某些场景解析非法JSON数据导致JVM Crash的问题 #3761
修复JSONB谢衣反序列化AtomicLong报错的问题 #3771
修复序列化Spring RefreshScope Bean导致内存不停上涨的问题
修复Android分支和master部分BUG fix不同步的问题 #3710
支持Long类型序列化日期格式 #3407
修复WriteNullNumberAsZero行为和fastjson 1行为不一致的问题 #3702
修复解析Set[...]某些场景报错的问题 #3692
增加对webflux的支持 #1501 #3691
修复JSONWriter.Feature.FieldBased 和 LocalDate冲突的问题 #3602
增强对base64格式解析的问题 #3681

MAVEN依赖配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.59</version>
</dependency>

android5针对优化版本

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.59.android5</version>
</dependency>

android8针对优化版本
这个版本支持java.time和Optional

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.59.android8</version>
</dependency>

1.x 兼容版本

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>2.0.59</version>
</dependency>

Spring 5 extension配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring5</artifactId>
    <version>2.0.59</version>
</dependency>

Spring 6 extension配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring6</artifactId>
    <version>2.0.59</version>
</dependency>

3. 相关链接

FASTJSON 1.x用户升级指南 https://github.com/alibaba/fastjson2/wiki/fastjson_1_upgrade_cn
相关issues https://github.com/alibaba/fastjson2/milestone/59
代码tag https://github.com/alibaba/fastjson2/tree/2.0.59
Maven下载 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.59/
Android5特别优化版本 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.59.android5/
Android8特别优化版本 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.59.android8/
1.x兼容版本 https://repo1.maven.org/maven2/com/alibaba/fastjson/2.0.59/
性能测试报告 https://github.com/alibaba/fastjson2/blob/main/docs/benchmark/benchmark_2.0.59.md

`v2.0.58`: Fastjson 2.0.58版本发布

Compare Source

这又是一个定期维护的功能增强BUG FIX版本，大家按需升级。

修复序列化Enum子类结果不对的问题 #3464
修复cglib代理对象序列化结果不对的问题 #3445
修复graalvm native-image运行报错的问题 #3274 #3108 #3587
支持LabelFilter，兼容fastjson 1.x #2974
增强fastjson 1.x的兼容 #2850
支持jax-rs #2490
修复android在 Unsafe报错的问题 #2263 #3576 #3636
支持SkipTransientField，兼容fastjson 1.x #3368 #3659
修复无法反序列化包含$ref的数组字符串的问题 #3436
支持更多场景base64字符串反序列化 #3497
修复Dubbo 使用 Fastjson2.0.57 版本时提示 not support none-Serializable #3499
修复基本类型在Feature.NotWriteDefaultValue下表现不一致 #3183 #3518
修复JSONObject.toJavaObject在final List字段时会导致重复元素的问题 #2944
修复JSONPath.set在某些数组场景无法替换的问题 #3375
修复JSONPath有些场景无法解析数组数据的问题 #3331
修复某些场景空字符串无法被当成空值处理的问题 #3537
修复某些场景Boolean类型反序列化结果不对的问题 #3539
修复某些场景JSONObject::from结果丢失泛型信息的问题 #3569
修复JSON解析数值时未区分0.0和-0.0的问题 #3613
修复某些场景不抛出JSONException的问题 #3610
新增加JSONWriter.Feature.WriterUtilDateAsMillis 方便fastjson 1.x用户迁移
修复某些场景子类反序列化字段丢失的问题 #3621
修复自定义List类型不支持自定义序列化的问题 #3601
修复BigDecimal scale为负时序列化长度计算不对报越界的问题 #3595
修复数组元素后面带有注释时反序列化失败 #3547
修复@JSONField(defaultValue="") 和fastjson 1.x不兼容的问题
修复BigDecimal在前字段带多余空格时某些场景报错的问题 #3665

MAVEN依赖配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.58</version>
</dependency>

android5针对优化版本

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.58.android5</version>
</dependency>

android8针对优化版本
这个版本支持java.time和Optional

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.58.android8</version>
</dependency>

1.x 兼容版本

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>2.0.58</version>
</dependency>

Spring 5 extension配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring5</artifactId>
    <version>2.0.58</version>
</dependency>

Spring 6 extension配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring6</artifactId>
    <version>2.0.58</version>
</dependency>

3. 相关链接

FASTJSON 1.x用户升级指南 https://github.com/alibaba/fastjson2/wiki/fastjson_1_upgrade_cn
相关issues https://github.com/alibaba/fastjson2/milestone/58
代码tag https://github.com/alibaba/fastjson2/tree/2.0.58
Maven下载 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.58/
Android5特别优化版本 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.58.android5/
Android8特别优化版本 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.58.android8/
1.x兼容版本 https://repo1.maven.org/maven2/com/alibaba/fastjson/2.0.58/
性能测试报告 https://github.com/alibaba/fastjson2/blob/main/docs/benchmark/benchmark_2.0.58.md

`v2.0.57`: Fastjson 2.0.57版本发布

Compare Source

这又是一个定期维护的功能增强BUG FIX版本，大家按需升级。

Issues

提升了序列化Double和忽略字段的性能
修复单引号反序列化时不支持忽略大小写匹配的问题 #3381
修复UseBigDecimalForDoubles解析浮点数结果不对的问题 #3382
JSONArray/JSONObject增加getLocalDate/getLocalDateTime系列方法 #3337
修复序列化Kotlin类忽略private field的问题 #3287
修复某些场景toJSON/toJavaObject缺失字段的问题 #2227
修复反序列化java.util.SubList报错的问题 #3364
修复SeeAlso父类是接口反序列化报错的问题 #3357 #3440
修复反序列化record不支持alternateNames的问题 #3351
修复2.0.56引入的字段多导致jit报错的问题 #3367
修复无上海时区环境报错的问题 #3450
修复2.0.56引入的非规范Double.NaN序列化报错的问题 #3449
修复某些场景不支持注释的问题 #3446
修复多层List字段序列化报错的问题 #3444 #3433
修复2.0.54引入的不匹配类型反序列化String结果不对的问题 #3438
兼容fastjson 1.x，序列化忽略ClassLoader类型字段
修复非当前ClassLoader类型toJavaObject导致ClassNotFound的问题 #3420
修复输入类型为Object.class时，reference解析不生效的问题 #3452

MAVEN依赖配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.57</version>
</dependency>

android5针对优化版本

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.57.android5</version>
</dependency>

android8针对优化版本
这个版本支持java.time和Optional

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.57.android8</version>
</dependency>

1.x 兼容版本

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>2.0.57</version>
</dependency>

Spring 5 extension配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring5</artifactId>
    <version>2.0.57</version>
</dependency>

Spring 6 extension配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring6</artifactId>
    <version>2.0.57</version>
</dependency>

3. 相关链接

FASTJSON 1.x用户升级指南 https://github.com/alibaba/fastjson2/wiki/fastjson_1_upgrade_cn
相关issues https://github.com/alibaba/fastjson2/milestone/57
代码tag https://github.com/alibaba/fastjson2/tree/2.0.57
Maven下载 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.57/
Android5特别优化版本 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.57.android5/
Android8特别优化版本 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.57.android8/
1.x兼容版本 https://repo1.maven.org/maven2/com/alibaba/fastjson/2.0.57/
性能测试报告 https://github.com/alibaba/fastjson2/blob/main/docs/benchmark/benchmark_2.0.57.md

`v2.0.56`: fastjson 2.0.56版本发布，性能进一步提升

Compare Source

这个版本进一步提升了性能，并且修复了2.0.54发布以来用户反馈的BUG。

Issues

修复JSONReaderJSONB未实现readArray方法的问题 #3332
修复字符串中有@type且位置不在json串开始位置时和fastjson 1.x行为不一致的问题 #3284
新增加API支持JSON::configEnumAsJavaBean #3286
增强对反序列化对单元素数组的支持，和fastjson 1.x行为一致 #3276
增强对kotlin的支持 #3288
增加对单引号boolean的支持 #3283
增加对enum上的Jackson JsonProperty配置的支持 #2804
增强对parseLong报错的信息 #2749
增加JSONReader.Feature.DisableReferenceDetect，并且自动识别不合法的reference path #3347
新增加JSONField.contentAs配置，并且兼容Jackson JsonSerialize.contentAs #3335

MAVEN依赖配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.56</version>
</dependency>

android5针对优化版本

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.56.android5</version>
</dependency>

android8针对优化版本
这个版本支持java.time和Optional

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.56.android8</version>
</dependency>

1.x 兼容版本

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>2.0.56</version>
</dependency>

Spring 5 extension配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring5</artifactId>
    <version>2.0.56</version>
</dependency>

Spring 6 extension配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring6</artifactId>
    <version>2.0.56</version>
</dependency>

这又是一个性能优化Bug修复的版本更新版本，大家按需升级。

1. 性能优化

这个版本的性能优化包括：

1.1 使用SWAR(SIMD Within A Register)技巧来优化序列化字符串的性能

序列化时，写字符串检测是否存在特别字符是一个性能关键点，这个版本使用SWAR(SIMD Within A Register)的技巧来做快速检测。如下

package com.alibaba.fastjson2;
class JSONWriterUTF8 {
    protected final long byteVectorQuote;

   JSONWriterUTF8(Context ctx) {
        // " -> 0x22, ' -> 0x27
        this.byteVectorQuote = this.useSingleQuote ? 0x2727_2727_2727_2727L : 0x2222_2222_2222_2222L;
    }

    public void writeStringLatin1(byte[] value) {
        final long vecQuote = this.byteVectorQuote;
        int i = 0;
        final int upperBound = (value.length - i) & ~7;
        // 这里一次检测8个byte是否存在特别字符
        for (; i < upperBound; i += 8) {
            if (containsEscaped(IOUtils.getLongLittleEndian(value, i), vecQuote)) {
                break;
            }
        }
        // ...
    }

    static boolean containsEscaped(long v, long quote) {
        /*
          for (int i = 0; i < 8; ++i) {
            byte c = (byte) data;
            if (c == quote || c == '\\' || c < ' ') {
                return true;
            }
            data >>>= 8;
          }
          return false;
         */
        long x22 = v ^ quote; // " -> 0x22, ' -> 0x27
        long x5c = v ^ 0x5c5c5c5c5c5c5c5cL;

        x22 = (x22 - 0x0101010101010101L) & ~x22;
        x5c = (x5c - 0x0101010101010101L) & ~x5c;

        return ((x22 | x5c | (0x7F7F_7F7F_7F7F_7F7FL - v + 0x1010_1010_1010_1010L) | v) & 0x8080808080808080L) != 0;
    }
}

https://github.com/alibaba/fastjson2/blob/2.0.54/core/src/main/java/com/alibaba/fastjson2/JSONWriterUTF8.java#L484

1.2 优化在JDK 16+的readString性能

在JDK 16+的版本下，使用StringLatin1.indexOfChar方法加速扫描特殊字符，优化readString的性能。这个算法来自 wycst 的贡献。

class JSONReaderASCII {
    static final int ESCAPE_INDEX_NOT_SET = -2;

    protected int nextEscapeIndex = ESCAPE_INDEX_NOT_SET;

    public String readString() {
            int slashIndex = nextEscapeIndex;
            if (slashIndex == ESCAPE_INDEX_NOT_SET || (slashIndex != -1 && slashIndex < offset)) {
                nextEscapeIndex = slashIndex = IOUtils.indexOfChar(bytes, '\\', offset, end);
            }
            if (slashIndex == -1 || slashIndex > index) {
                valueLength = index - offset;
                offset = index;
           // ...
    }
}

https://github.com/alibaba/fastjson2/blob/2.0.54/core/src/main/java/com/alibaba/fastjson2/JSONReaderASCII.java#L1445

获取StringLatin1.IndexOfChar MethodHandle的代码 https://github.com/alibaba/fastjson2/blob/2.0.54/core/src/main/java/com/alibaba/fastjson2/util/JDKUtils.java#L342

1.3 int/long/float/double的读取写性能

优化的技巧是一次性读取两个数字，如下:

package com.alibaba.fastjson2;

class JSONReaderUTF8 {
    public final int readInt32Value() {
       // ...
        while (inRange
                && offset + 1 < end
                && (digit = IOUtils.digit2(bytes, offset)) != -1
        ) {
            // max digits is 19, no need to check inRange (result == MULT_MIN_100 && digit <= (MULT_MIN_100 * 100 - limit))
            if (inRange = (result > INT_32_MULT_MIN_100)) {
                result = result * 100 - digit;
                offset += 2;
            }
        }
    }
}

package com.alibaba.fastjson2.util;
class IOUtils {
    public static int digit2(byte[] bytes, int off) {
        short x = UNSAFE.getShort(bytes, ARRAY_BYTE_BASE_OFFSET + off);
        if (BIG_ENDIAN) {
            x = Short.reverseBytes(x);
        }
        int d;
        if ((((x & 0xF0F0) - 0x3030) | (((d = x & 0x0F0F) + 0x0606) & 0xF0F0)) != 0
        ) {
            return -1;
        }
        return ((d & 0xF) << 3) + ((d & 0xF) << 1)  // (d & 0xF) * 10
                + (d >> 8);
    }
}

https://github.com/alibaba/fastjson2/blob/2.0.54/core/src/main/java/com/alibaba/fastjson2/JSONReaderUTF8.java#L3506

这个优化最初灵感源泉来自 https://github.com/wycst/wast 的 io.github.wycst.wast.json.JSONTypeDeserializer.NumberImpl#deserializeInteger所采用的算法，然后做了进一步的改进。

2. Issues

修复toJSONString实际可用空间小于预设的问题 #255
格式化输出支持使用空格代替Tab，新增两个JSONWriter.Feature为PrettyFormatWith2Space和PrettyFormatWith4Space
修复非法输入缺少第一个花括号{不报错的问题 #2592
增强识别枚举，原来不能识别toString的结果，新增识别toString的结果。 #2820
JSONObject.to 支持Void.class和void.class返回null #2879
修复CSVWriter写入CSV数据超过 65536 个字节时报错 #2988
修复SeeAlso类型父类是Abstract类型时JVM Crash的问题 #2987
修复初始化JSONFactory某些场景会导致循环依赖导致死锁的问题 #2994
修复JSON.toJSON方法行为和JSON.toJSONString不一致的问题 #2981
增强对注释的支持 #2983
修复某些场景JSONWriter.Feature.WriteNulls导致Long/Double序列化结果为Null的问题 #3049
修复toJavaObject方法不能识别早期时间毫秒到LocalDateTime的转换问题 #3091
修复反序列化private Class结果和toJavaObject方法结果不一致的问题 #3134
增强fastjson 1.x的兼容性 #3208 #2739 # 3144 #3157
增强对Record的支持 #3090
JSONPath支持使用path设置List中的对象 #3125
修复private Boolean类型字段使用valueFilter报错的问题 #3076
修复JDK 9+ writeStringEscaped某些场景数组越界报错 #3209
增加对Key为Map类型的反序列化支持 #3214
JSON.parseObject方法在某些情况下反序列化编码出错的问题 #3223 #3219
支持修改useGsonAnnotation 配置 #3258
fastjson2缺省是能识别Gson的Annotation的，这个可以通过接口或者JVM启动参数关闭

import com.alibaba.fastjson2.JSONFactory;

// 手工关闭
JSONFactory.setUseGsonAnnotation(false);

也支持通过JVM启动参数关闭

-Dfastjson2.useGsonAnnotation=false

修复错误格式没有及时报错的问题 #3260
public首字母大写的字段,序列化重复key生成 #3220

MAVEN依赖配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.54</version>
</dependency>

android5针对优化版本

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.54.android5</version>
</dependency>

android8针对优化版本
这个版本支持java.time和Optional

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.54.android8</version>
</dependency>

1.x 兼容版本

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>2.0.54</version>
</dependency>

Spring 5 extension配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring5</artifactId>
    <version>2.0.54</version>
</dependency>

Spring 6 extension配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring6</artifactId>
    <version>2.0.54</version>
</dependency>

3. 相关链接

FASTJSON 1.x用户升级指南 https://github.com/alibaba/fastjson2/wiki/fastjson_1_upgrade_cn
相关issues https://github.com/alibaba/fastjson2/milestone/54
代码tag https://github.com/alibaba/fastjson2/tree/2.0.54
Maven下载 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.54/
Android5特别优化版本 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.54.android5/
Android8特别优化版本 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.54.android8/
1.x兼容版本 https://repo1.maven.org/maven2/com/alibaba/fastjson/2.0.54/
性能测试报告 https://github.com/alibaba/fastjson2/blob/main/docs/benchmark/benchmark_2.0.54.md

`v2.0.53`: fastjson 2.0.53版本发布

Compare Source

这又是一个月度更新版本，大家按需升级。

Issues

支持DisableSingleQuote配置 #2908
修复配置JSONField#ignore之后导致死循环的问题 #2914
反序列化java.util.Date类型支持HH:mm:ss格式输入 #2905
修复兼容Jackson Annotation JsonUnwrapped某些场景不起作用的问题 #2846
修复兼容Jackson Annotation JsonFormat某些场景不起作用的问题 #2836
修复JSONB格式反序列化是忽略不存在Double/LocalDate字段报错的问题 #2823 #2907 #2902
修复反序列化java.util.RandomAccessSubList类型报错的问题 #2851
DefaultObjectWriterProvider和DefaultObjectReaderProvider提供clear方法 #2860
修复某些场景反序列化LocalDateTime报错的问题 #2817
修复CSVWriter在writeDecimal计算空间不对的问题 #2848
修复JSONReader.Feature.UseBigDecimalForFloats行为不对的问题 #2866 #2867
修复使用 fastjson1 的 JSON.toJSON() 方法，转换后的数据中存在 com.alibaba.fastjson2.JSONArray #2856
修复与lombok AllArgsConstructor冲突的问题 #2901
支持Clickhouse UnsignedLong类型序列化 #2958
修复JSONB DUMP DECIMAL类型某些场景报错的问题 #2954
支持更多场景JSONSchema #2931
修复Long/Double字段配置JSONField#serializeFeatures WriteNulls不生效的问题 #2952
修复某些场景配置JSONType#alphabetic=false不生效的问题 #2959

2. MAVEN依赖配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.53</version>
</dependency>

android5针对优化版本

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.53.android5</version>
</dependency>

android8针对优化版本
这个版本支持java.time和Optional

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.53.android8</version>
</dependency>

1.x 兼容版本

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>2.0.53</version>
</dependency>

Spring 5 extension配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring5</artifactId>
    <version>2.0.53</version>
</dependency>

Spring 6 extension配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring6</artifactId>
    <version>2.0.53</version>
</dependency>

3. 相关链接

FASTJSON 1.x用户升级指南 https://github.com/alibaba/fastjson2/wiki/fastjson_1_upgrade_cn
相关issues https://github.com/alibaba/fastjson2/milestone/53
代码tag https://github.com/alibaba/fastjson2/tree/2.0.53
Maven下载 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.53/
Android5特别优化版本 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.53.android5/
Android8特别优化版本 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.53.android8/
1.x兼容版本 https://repo1.maven.org/maven2/com/alibaba/fastjson/2.0.53/
性能测试报告 https://github.com/alibaba/fastjson2/blob/main/docs/benchmark/benchmark_2.0.53.md

`v2.0.52`: fastjson 2.0.52发布

Compare Source

这又是一个月度例行发布的BUG FIX版本版本，大家按需升级。

Issues

修复属性为Collections.emptyList时出现的UnsupportedOperationException异常问题 #1835 #2691
完善枚举属性setter方法匹配逻辑 #2680
完善JSONPath的set方法跳过null #2656
修复@JSONType同时指定WriteClassName与NotWriteRootClassName依然输出根类名问题 #2662
修复ObjectReaderImplList与ObjectReaderImplMapTyped的createInstance出现的类型转换异常问题 #2665
完善引用支持@符号 #2671
调整最大EXP至2047，以支持更大数据 #2672
完善FieldReader对Object属性的支持 #2673
修复带有Filter时出现的序列化冒号缺失问题 #2678
调整ObjectReaderImplEnum数值读取判断逻辑为JSONReader.toInt方法 #2682
完善TypeUtils.cast方法对枚举的支持 #2726 #2688
完善Fastjson1对Map的兼容性 #2693
修复List属性时在指定ReferenceDetection序列化名称缺失问题 #2712
新增支持dd-MM-yyyy HH:mm:ss日期格式 #2757
完善readNumber0方法对后缀B,S或L的小数读取支持 #2768
修复@JSONField对boolean属性支持 #2795
完善JSONWriter.getPath对Map类型的支持 #2590
完善getInteger, getBigInteger与getBigDecimal对boolean类型的支持 #2745 #2746
新增parseObject(String text, Type type, JSONReader.Context context)方法 #2774
JSONType新增支持RootName和arrayToMap配置 https://github.com/alibaba/fastjson2/wiki/array_to_map_cn

2. MAVEN依赖配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.52</version>
</dependency>

android5针对优化版本

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.52.android5</version>
</dependency>

android8针对优化版本
这个版本支持java.time和Optional

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.52.android8</version>
</dependency>

1.x 兼容版本

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>2.0.52</version>
</dependency>

Spring 5 extension配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring5</artifactId>
    <version>2.0.52</version>
</dependency>

Spring 6 extension配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring6</artifactId>
    <version>2.0.52</version>
</dependency>

3. 相关链接

FASTJSON 1.x用户升级指南 https://github.com/alibaba/fastjson2/wiki/fastjson_1_upgrade_cn
相关issues https://github.com/alibaba/fastjson2/milestone/52
代码tag https://github.com/alibaba/fastjson2/tree/2.0.52
Maven下载 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.52/
Android5特别优化版本 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.52.android5/
Android8特别优化版本 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.52.android8/
1.x兼容版本 https://repo1.maven.org/maven2/com/alibaba/fastjson/2.0.52/
性能测试报告 https://github.com/alibaba/fastjson2/blob/main/docs/benchmark/benchmark_2.0.52.md

`v2.0.51`: fastjson 2.0.51发布

Compare Source

这又是一个例行发布的BUG FIX版本版本，修复最近一个月用户反馈的问题，大家按需升级。

Issues

修复2.0.50引入的当反序列化传入Filter时OOM的问题
完善对kotlin的支持，修复某些场景反序列化kotilin.emptyList报错的问题 #2392
完善对Jackson Annotation的支持 #2641 #2643 #2644 #2649
修复某些情况下WriteNullStringAsEmpty不生效的问题 #2642
内置支持MongoDB Date类型 #2614
完善apt-codegen，支持生成Writer，支持graalvm native-image #2622 #2575 #2576
修复toJavaObject方法二层嵌套对象不传递features的问题 #2564 #2632
修复fastjson 1.x API的一些不兼容问题 #2565 #2529 #2578 #2584 #2585 #2593 #2598 #2640 #2639
修复JSONValidator.validate某些场景报错的问题 #2566
修复反序列化Key为数值0或者负数时结果不对的问题 #2570
修复JDK17下序列化对象字段包含Lock时报错的问题 #2571
修复超大整数反序列化weiBigDecimal结果不对的问题 #2582
修复反序列化EnumMap不支持autoType的问题 #2583
修复开启autoType支持反序列化HashMap会包含@type字段的问题 #2581 #2623
修复FastJsonHttpMessageConverter配置dateFormat不生效的问题 #2577
修复反序列化ConcurrentLinkedQueue存在引用时报错的问题 #2602
修复某些场景autoType long反序列化的结果为Integer类型的问题 #2608
修复某些场景反序列化AtomicLong报错的问题 #2615
支持通过long features配置全局以及JSONReader.Context和JSONWriter.Context的feature #2610
修复Map对象在Filter中获得的JSONWriter.getPath结果不对的问题 #2590
JSONReader.Feature新增UseBigIntegerForInts和UseLongForInts，支持将整数缺省反序列化为BigInteger或者Long。 #2612
反序列化日期类型支持更多格式，包括JDK9以后默认的CLDR日期格式 #2635

2. MAVEN依赖配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.51</version>
</dependency>

android5针对优化版本

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.51.android5</version>
</dependency>

android8针对优化版本
这个版本支持java.time和Optional

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2</artifactId>
    <version>2.0.51.android8</version>
</dependency>

1.x 兼容版本

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>2.0.51</version>
</dependency>

Spring 5 extension配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring5</artifactId>
    <version>2.0.51</version>
</dependency>

Spring 6 extension配置

<dependency>
    <groupId>com.alibaba.fastjson2</groupId>
    <artifactId>fastjson2-extension-spring6</artifactId>
    <version>2.0.51</version>
</dependency>

3. 相关链接

FASTJSON 1.x用户升级指南 https://github.com/alibaba/fastjson2/wiki/fastjson_1_upgrade_cn
相关issues https://github.com/alibaba/fastjson2/milestone/51
代码tag https://github.com/alibaba/fastjson2/tree/2.0.51
Maven下载 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.51/
Android5特别优化版本 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.51.android5/
Android8特别优化版本 https://repo1.maven.org/maven2/com/alibaba/fastjson2/fastjson2/2.0.51.android8/
1.x兼容版本 https://repo1.maven.org/maven2/com/alibaba/fastjson/2.0.51/
性能测试报告 https://github.com/alibaba/fastjson2/blob/main/docs/benchmark/benchmark_2.0.51.md

`v2.0.50`: fastjson 2.0.50发布

Compare Source

这又是一个例行月度更新的BUG FIX版本，大家按需升级。这个版本继续优化了JIT生成的代码，性能有提升，并且支持配置全局配置在JIT时去掉不必要功能的代码生成，提升性能。

注意已知问题

当parseObject制定Filter时会导致OOM（会尽快发布2.0.51版本修复，或者先回退到2.0.49版本）

Issues

支持全局配置JIT参数提升性能 https://github.com/alibaba/fastjson2/wiki/jit_optimization
修复JDK8 ARM服务器下序列化boolean类型偶发结果不对的问题 #2210 #2502
修复org.bson.types.Decimal128转double报错的问题 #2558
内置android proguard rules，减少用户手动添加规则 #2511 #2466
修复org.joda.time.DateTime使用JSONB序列化和反序列化报错的问题 #2563
修复序列化包括java.security.ProtectionDomain字段对象报错的问题 #2562
修复序列化配置WriteNonStringValueAsString在Boolean类型不生效的问题 #2560
修复JSON.tJSON在格式为"millis"时处理Date类型报错的问题 #2550
修复不支持fastjson 1.x JSONField#unwrap配置的问题 #2551 #2525
修复在某些场景不能识别复杂Jackson Annotation JsonSubTypes的问题 #2548
修复反序列化enum类型输入不存在负数数值时报错的问题 #2531 #2536
修复反序列化ImmutableCollection字段报错的问题 #2532
修复兼容包某些场景报错的问题 #2542 #2537 [#2534](https://redirect.github.com/alibab

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renovate bot changed the title ~~fix(deps): update dependency com.alibaba:fastjson to v2.0.26~~ fix(deps): update dependency com.alibaba:fastjson to v2.0.27 Apr 8, 2023

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fix(deps): update dependency com.alibaba:fastjson to v2.0.61#102

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Release Notes

v2.0.61: fastjson 2.0.61版本发布

FASTJSON 2.0.61 Release Notes

Overview

Changes & Bug Fixes

Maven Dependency Configuration

Standard Version

Android 5 Optimized Version

Android 8 Optimized Version (supports java.time and Optional)

1.x Compatible Version

Spring 5 Extension

Spring 6 Extension

JAX-RS Extension

JAX-RS Jakarta Extension

Related Links

FASTJSON 2.0.61 发布说明

概述

变更与问题修复

Maven 依赖配置

标准版本

Android 5 优化版本

Android 8 优化版本（支持 java.time 和 Optional）

1.x 兼容版本

Spring 5 扩展

Spring 6 扩展

JAX-RS 扩展

JAX-RS Jakarta 扩展

相关链接

v2.0.60: fastjson 2.0.60发布

Issues

MAVEN依赖配置

3. 相关链接

v2.0.59: fastjson 2.0.59发布

Issues

MAVEN依赖配置

3. 相关链接

v2.0.58: Fastjson 2.0.58版本发布

MAVEN依赖配置

3. 相关链接

v2.0.57: Fastjson 2.0.57版本发布

Issues

MAVEN依赖配置

3. 相关链接

v2.0.56: fastjson 2.0.56版本发布，性能进一步提升

Issues

MAVEN依赖配置

3. 相关链接

v2.0.55

v2.0.54: fastjson 2.0.54版本发布，性能进一步提升

1. 性能优化

1.1 使用SWAR(SIMD Within A Register)技巧来优化序列化字符串的性能

1.2 优化在JDK 16+的readString性能

1.3 int/long/float/double的读取写性能

2. Issues

MAVEN依赖配置

3. 相关链接

v2.0.53: fastjson 2.0.53版本发布

Issues

2. MAVEN依赖配置

3. 相关链接

v2.0.52: fastjson 2.0.52发布

Issues

2. MAVEN依赖配置

3. 相关链接

v2.0.51: fastjson 2.0.51发布

Issues

2. MAVEN依赖配置

3. 相关链接

v2.0.50: fastjson 2.0.50发布

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`v2.0.61`: fastjson 2.0.61版本发布

`v2.0.60`: fastjson 2.0.60发布

`v2.0.59`: fastjson 2.0.59发布

`v2.0.58`: Fastjson 2.0.58版本发布

`v2.0.57`: Fastjson 2.0.57版本发布

`v2.0.56`: fastjson 2.0.56版本发布，性能进一步提升

`v2.0.55`

`v2.0.54`: fastjson 2.0.54版本发布，性能进一步提升

`v2.0.53`: fastjson 2.0.53版本发布

`v2.0.52`: fastjson 2.0.52发布

`v2.0.51`: fastjson 2.0.51发布

`v2.0.50`: fastjson 2.0.50发布