shedlock | 4.0 이상 버전에서 locked 오류 (do not know what to return if it's locked)

Servlet.service() for servlet [action] in context with path [] threw exception [Request processing failed; nested exception is Exception: Can not lock method returning value (do not know what to return if it's locked)] with root cause

Can not lock method returning value (do not know what to return if it's locked)

 

 

shedlock 4.0을 사용중 locked 에러가 발생

 

<dependency>
    <groupId>net.javacrumbs.shedlock</groupId>
    <artifactId>shedlock-spring</artifactId>
    <version>4.0.0</version>
</dependency>

<dependency>
    <groupId>net.javacrumbs.shedlock</groupId>
    <artifactId>shedlock-provider-jdbc-template</artifactId>
    <version>4.0.0</version>
</dependency>​

 

 

@EnableSchedulerLock에 interceptMode 를 추가해준다.

@EnableSchedulerLock(interceptMode = InterceptMode.PROXY_SCHEDULER, defaultLockAtMostFor="PT30S")