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Already on GitHub? Sign in to your account com.alibaba.fastjson2.reader.ObjectReaderImplObject中 Thread.currentThread().getContextClassLoader()为null 导致空指针 #1534 com.alibaba.fastjson2.reader.ObjectReaderImplObject中 Thread.currentThread().getContextClassLoader()为null 导致空指针 #1534 lyy12332133 opened this issue Jun 6, 2023 · 10 comments

com.alibaba.fastjson2.reader.ObjectReaderImplObject中 Thread.currentThread().getContextClassLoader()为null 导致空指针

请填写以下信息：

OS信息： [e.g.：CentOS 8.4.2105 4Core 3.10GHz 16 GB]

JDK信息： [e.g.：Openjdk 1.8.0_312]

版本信息：[e.g.：Fastjson2 2.0.33]

[BUG] com.alibaba.fastjson2.reader.ObjectReaderImplObject中 Thread.currentThread().getContextClassLoader()为null 导致空指针 Jun 6, 2023 private SpeechRecognizer speechRecognizer;

抱歉，没法给测试用例，使用微软asr的sdk回调函数里面获取的Thread.currentThread().getContextClassLoader()就是null。
之前使用fastjson:1.2.83没有这个问题，升级到2.0.33后存在这个问题。

`package com.alibaba.fastjson.support.spring;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.SerializationException;

Fastjson for Spring Data Redis Serializer.

public class FastJsonRedisSerializer
implements RedisSerializer {
private final Class type;
private FastJsonConfig fastJsonConfig = new FastJsonConfig();

public FastJsonRedisSerializer(Class type) {
this.type = type;

public FastJsonConfig getFastJsonConfig() {
return fastJsonConfig;

public void setFastJsonConfig(FastJsonConfig fastJsonConfig) {
this.fastJsonConfig = fastJsonConfig;

@OverRide
public byte[] serialize(T type) throws SerializationException {
if (type == null) {
return new byte[0];
try {
return JSON.toJSONBytes(type, fastJsonConfig.getSerializeFilters(), fastJsonConfig.getSerializerFeatures());
} catch (Exception ex) {
throw new SerializationException("Could not serialize: " + ex.getMessage(), ex);

@OverRide
public T deserialize(byte[] bytes) throws SerializationException {
if (bytes == null || bytes.length == 0) {
return null;
try {
return JSON.parseObject(bytes, type, fastJsonConfig.getFeatures());
} catch (Exception ex) {
throw new SerializationException("Could not deserialize: " + ex.getMessage(), ex);

redis用到了fastjson的序列化，反序列化时候报错了。

`package com.alibaba.fastjson.support.spring;

import com.alibaba.fastjson.JSON; import com.alibaba.fastjson.support.config.FastJsonConfig; import org.springframework.data.redis.serializer.RedisSerializer; import org.springframework.data.redis.serializer.SerializationException;

Fastjson for Spring Data Redis Serializer.

Compatible fastjson 1.2.x

@author lihengming

@author Victor.Zxy

@see RedisSerializer

@SInCE 2.0.2
public class FastJsonRedisSerializer
implements RedisSerializer {
private final Class type;
private FastJsonConfig fastJsonConfig = new FastJsonConfig();
public FastJsonRedisSerializer(Class type) {
this.type = type;
public FastJsonConfig getFastJsonConfig() {
return fastJsonConfig;
public void setFastJsonConfig(FastJsonConfig fastJsonConfig) {
this.fastJsonConfig = fastJsonConfig;
@OverRide
public byte[] serialize(T type) throws SerializationException {
if (type == null) {
return new byte[0];
try {
return JSON.toJSONBytes(type, fastJsonConfig.getSerializeFilters(), fastJsonConfig.getSerializerFeatures());
} catch (Exception ex) {
throw new SerializationException("Could not serialize: " + ex.getMessage(), ex);
@OverRide
public T deserialize(byte[] bytes) throws SerializationException {
if (bytes == null || bytes.length == 0) {
return null;
try {
return JSON.parseObject(bytes, type, fastJsonConfig.getFeatures());
} catch (Exception ex) {
throw new SerializationException("Could not deserialize: " + ex.getMessage(), ex);

fastjson2-2.0.34-SNAPSHOT.zip

redis用到了fastjson的序列化，反序列化时候报错了。

麻烦用这个试试，