【已解决】java: : Class $JCImport does not have

java: : Class $JCImport does not have member field ' qualid'

这个错误通常是由于升级到Java 21后,Lombok等库无法正确访问内部的Java编译器API导致的。具体原因如下:

1. Lombok在早期版本中使用反射访问$JCImport类的qualid字段,该字段在Java 21中的类型发生了变化。[1][2]

2. 在Java 21及更高版本中,qualid字段的类型从JCTree变更为JCFieldAccess。这导致了Lombok无法正确访问该字段,从而抛出NoSuchFieldError异常。[2][3]

解决方案:

1. 将Lombok库升级到1.18.30或更高版本。该版本已经修复了这个问题。[3]

2. 在项目的依赖项中添加Lombok的最新版本:

<dependency>
    <groupId></groupId>
    <artifactId>lombok</artifactId>
    <version>1.18.32</version>
    <scope>provided</scope>
</dependency>

1. 如果使用Maven,还需要在maven-compiler-plugin中指定Lombok的版本:

<plugin>
    <groupId></groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.11.0</version>
    <configuration>
        <annotationProcessorPaths>
            <path>
                <groupId></groupId>
                <artifactId>lombok</artifactId>
                <version>1.18.32</version>
            </path>
        </annotationProcessorPaths>
    </configuration>
</plugin>

通过升级Lombok版本,就可以解决这个NoSuchFieldError的问题。 

---

Learn more:

1. spring boot - Compilation error after upgrading to JDK 21 - "NoSuchFieldError: JCImport does not have member field JCTree qualid" - Stack Overflow
2. ????????????????????????????????Question build fail , "' qualid'" error occur · Issue #9812 · thingsboard/thingsboard · GitHub
3. ????????????????????????Solved NoSuchFieldError: Class JCTree$JCImport does not have member field