升级JDK21过程中遇到的问题和解决方案

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背景

我之前用的是JDK19，本来没打算升级的，但最近发现系统可能存在内存泄漏的问题（实际没有发生内存泄漏，将在另一篇文章中说明），排查过程中发现之前本地用的java版本是x86的，而我用的电脑是macbook M1pro的芯片，安装分析工具会报错，需要卸载原本的java重装。

重装的时候索性直接升到JDK21了，最近听说JDK21带来了不少新的特性，性能大幅提高，正好体验一下。

但是升级过程中还是遇到了一些问题，本文记录一下问题原因和对应的解决方案，希望对需要升级的朋友有所帮助～

NoSuchFieldError: JCImport does not have member field JCTree qualid"

问题描述

升级之后先是编译的时候遇到了这个报错

Fatal error compiling: java.lang.NoSuchFieldError:
Class com.sun.tools.javac.tree.JCTree$JCImport does not have member field 'com.sun.tools.javac.tree.JCTree qualid'

解决方案

问题原因在lombok，与 JDK 21 兼容的最低 Lombok 版本是 1.18.30，最小的 Spring Boot 版本是 3.1.4。

可以尝试先升级lombok至1.18.30或以上版本，若仍不行，再尝试升级Spring Boot 至3.1.4或以上版本。

请注意，如果在经过上述尝试后，即使重新运行构建后仍然出现错误，可能是由于 IntelliJ 有一些缓存仍在获取以前的 lombok 版本。在这种情况下尝试以下方法之一：

1. Maven > Reload，或者右键单击 pom.xml 文件并选择 Maven > Reimport
2. 重新启动 IntelliJ
3. 我的终极解决方案：找到maven本地仓库，删除之前的Lombok本地仓库，重新启动 IntelliJ，并reload maven

参考：https://stackoverflow.com/questions/77171270/compilation-error-after-upgrading-to-jdk-21-nosuchfielderror-jcimport-does-n/77739657#77739657

java.lang.IllegalArgumentException: Unsupported class file major version 65

问题描述

我这边在解决上面一个问题后，本地编译变没有问题了。

但是尝试运行时报错 java.lang.IllegalArgumentException: Unsupported class file major version 65

2024-02-03 14:33:32.924 [main] [ERROR] [org.springframework.boot.SpringApplication] - Application run failed
org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [/Users/izhxxx/Projects/IdeaProjects/zh-dream-backend/start/target/classes/com/izhxxx/config/CloudinaryConfig.class]
	at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.scanCandidateComponents(ClassPathScanningCandidateComponentProvider.java:463)
	at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:317)
	at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:276)
	at org.springframework.context.annotation.ComponentScanAnnotationParser.parse(ComponentScanAnnotationParser.java:128)
	at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:289)
	at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:243)
	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:196)
	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:164)
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:398)
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:283)
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:344)
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:115)
	at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:745)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:565)
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:730)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:432)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:308)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1302)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1291)
	at com.izhxxx.Application.main(Application.java:17)
Caused by: java.io.IOException: ASM ClassReader failed to parse class file - probably due to a new Java class file version that isn't supported yet: file [/Users/izhxxx/Projects/IdeaProjects/zh-dream-backend/start/target/classes/com/izhxxx/config/CloudinaryConfig.class]
	at org.springframework.core.type.classreading.SimpleMetadataReader.getClassReader(SimpleMetadataReader.java:59)
	at org.springframework.core.type.classreading.SimpleMetadataReader.(SimpleMetadataReader.java:48)
	at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:103)
	at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:122)
	at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.scanCandidateComponents(ClassPathScanningCandidateComponentProvider.java:435)
	... 20 common frames omitted
Caused by: java.lang.IllegalArgumentException: Unsupported class file major version 65
	at org.springframework.asm.ClassReader.(ClassReader.java:199)
	at org.springframework.asm.ClassReader.(ClassReader.java:180)
	at org.springframework.asm.ClassReader.(ClassReader.java:166)
	at org.springframework.asm.ClassReader.(ClassReader.java:287)
	at org.springframework.core.type.classreading.SimpleMetadataReader.getClassReader(SimpleMetadataReader.java:56)
	... 24 common frames omitted
2024-02-03 14:41:41.535 [main] [ERROR] [o.s.b.diagnostics.LoggingFailureAnalysisReporter] -

解决方案

可以看错误栈，是这个类导致的：org.springframework.asm.ClassReader

低版本的springframework，ClassReader对JDK版本有限制，可以尝试升级spring-core

	org.springframework
	spring-core
	6.1.3

Failed to bind properties under ‘mybatis-plus.configuration.mapped-statements[0].configuration.environment’ to org.apache.ibatis.mapping.Environment

问题描述

修复上述问题后，再次尝试运行，发现仍旧无法启动，报错信息如下：

***************************
APPLICATION FAILED TO START
***************************
Description:
Failed to bind properties under 'mybatis-plus.configuration.mapped-statements[0].configuration.environment' to org.apache.ibatis.mapping.Environment:
    Reason: java.lang.IllegalStateException: Failed to extract parameter names for public org.apache.ibatis.mapping.Environment(java.lang.String,org.apache.ibatis.transaction.TransactionFactory,javax.sql.DataSource)
Action:
Update your application's configuration

解决方案

这个问题和jdk关系不大，主要是因为我刚刚把springboot的版本升级了，升级后的spring boot和旧的mybatis版本不兼容

我这里再把mybatis-plus的版本也升级了就没问题了

我用的springboot版本：3.2.2，mybatis-plus版本：3.5.5，都升级成了最新版

最后

希望本文对你有所帮助～