添加@Slf4j后Eclipse断点报错但仍可用的原因与修复

算力阿峰

2026-6-25

Spring Boot主类添加@Slf4j后Eclipse断点报错但功能正常

报错信息

Eclipse弹出以下断点安装失败提示：

### Java Breakpoint 

Unable to install breakpoints in xxx.xxx...$$EnhancerBySpringxxx due to missing line number attributes. Modify compiler options to generate line number attributes.

Reason: 
Absent Line Number Information 
[ ] Don't tell me again 
[OK]

注：实际断点仍能正常触发并工作。

背景

为通过AspectJ实现日志记录，给Spring Boot主类添加了@Slf4j注解，此前项目运行无异常
同类POC（概念验证）示例在Spring Boot环境中可正常运行，但当前项目无法轻易重构

相关代码

主类代码

@SpringBootApplication
@Import({xxx.class})
@ComponentScan(basePackages = { /* ... */ } )
// 添加该注解后出现问题
@Slf4j
public class MainApp {}

AspectJ日志切面代码

@Aspect
@Component
public class LoggingAspect {
    private Logger logger = LoggerFactory.getLogger(LoggingAspect.class);
    // ... 
    @Around("@annotation(LogExecutionTime)")
    public Object logExecutionTime(ProceedingJoinPoint joinPoint) throws Throwable {
        long startTime = System.currentTimeMillis();
        Object proceed = joinPoint.proceed();
        long endTime = System.currentTimeMillis();
        // 断点设置在此处的日志代码行
        logger.info(joinPoint.getSignature() + " executed in " + (endTime - startTime) + "ms");
        return proceed;
    }
    // ...
}