Conflict with spring load time weaving

[jameswangz]

Hi, I want to use spring load time weaving and shedlock together but the app failed to start, my configuration is:

@Configuration
@EnableAsync
@EnableJpaAuditing
@EnableScheduling
@EnableSchedulerLock(defaultLockAtMostFor = "10m")
@EnableLoadTimeWeaving(aspectjWeaving = EnableLoadTimeWeaving.AspectJWeaving.ENABLED)
@EnableConfigurationProperties(value = { CustomConfig.class, MasterSlaveDataSourceConfig.class})
public class ApplicationConfig {

}

When the app starts, it reports error:

2022-01-12 01:16:27.525 DEBUG 53146 --- [  restartedMain] org.springframework.beans.factory.support.DefaultListableBeanFactory : Creating shared instance of singleton bean 'org.springframework.transaction.config.internalTransactionalEventListenerFactory'
2022-01-12 01:16:27.543 ERROR 53146 --- [  restartedMain] org.springframework.boot.SpringApplication : Application run failed

java.lang.reflect.InaccessibleObjectException: Unable to make protected final java.lang.Class java.lang.ClassLoader.findLoadedClass(java.lang.String) accessible: module java.base does not "opens java.lang" to unnamed module @481a15ff
	at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:357)
	at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)
	at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:199)
	at java.base/java.lang.reflect.Method.setAccessible(Method.java:193)
	at org.springframework.util.ReflectionUtils.makeAccessible(ReflectionUtils.java:573)
	at org.springframework.context.support.ContextTypeMatchClassLoader$ContextOverridingClassLoader.isEligibleForOverriding(ContextTypeMatchClassLoader.java:99)
	at org.springframework.core.OverridingClassLoader.loadClass(OverridingClassLoader.java:87)

I tried to remove the EnableLoadTimeWeaving config then the app can start successfully, I searched the error and added the following java vm options and it still doesn't work:

bootRun {
	args = ['--add-opens java.base/java.lang=ALL-UNNAMED']
	jvmArgs += [ '-javaagent:' + projectDir + '/lib/spring-instrument-5.3.10.jar']
}

The lib versions I'm using are:

Java 16
SpringBoot 2.5.6
ShedLock 4.30.0

[lukas-krecan]

Hi, thanks for feedback. This seems to be more general problem with Spring AOP, Java 9+ and loadtime waving spring-projects/spring-framework#22791

[jameswangz]

Thanks Lukas, but I found if I don't use @EnableSchedulerLock the load time weaving function can work correctly, if I remove @EnableLoadTimeWeaving then shedlock can work, so I suspect they may have some conflicts but I'm not sure.