Error creating bean with name 'grpcHealthService'

[michaldCX]

The context

Error creating bean with name 'grpcHealthService'

The question

I'm using
grpc-server-spring-boot-starter - 2.14.0.RELEASE ans when start my app i got error while Initialization bean grpcHealthService

Stacktraces and logs

2023-11-20T18:24:03.159Z [main] error SpringApplication.java:830 - Application run failed 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'grpcHealthService' defined in class path resource [net/devh/boot/grpc/server/autoconfigure/GrpcHealthServiceAutoConfiguration.class]: Initialization of bean failed; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class io.grpc.protobuf.services.HealthServiceImpl: Common causes of this problem include using a final class or a non-visible class; nested exception is java.lang.IllegalArgumentException: Cannot subclass final class io.grpc.protobuf.services.HealthServiceImpl
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:628)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:953)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583)
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:740)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:415)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:303)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1312)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301)
	at com.checkmarx.ast.flow.listener.FlowListenerApp.main(FlowListenerApp.java:16)
Caused by: org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class io.grpc.protobuf.services.HealthServiceImpl: Common causes of this problem include using a final class or a non-visible class; nested exception is java.lang.IllegalArgumentException: Cannot subclass final class io.grpc.protobuf.services.HealthServiceImpl
	at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:209)
	at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:110)
	at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.createProxy(AbstractAutoProxyCreator.java:478)
	at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:342)
	at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:291)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:455)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1808)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620)
	... 15 more
Caused by: java.lang.IllegalArgumentException: Cannot subclass final class io.grpc.protobuf.services.HealthServiceImpl
	at org.springframework.cglib.proxy.Enhancer.generateClass(Enhancer.java:660)
	at org.springframework.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25)
	at org.springframework.cglib.core.ClassLoaderAwareGeneratorStrategy.generate(ClassLoaderAwareGeneratorStrategy.java:57)
	at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:358)
	at org.springframework.cglib.proxy.Enhancer.generate(Enhancer.java:585)
	at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:110)
	at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:108)
	at org.springframework.cglib.core.internal.LoadingCache$2.call(LoadingCache.java:54)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:61)
	at org.springframework.cglib.core.internal.LoadingCache.get(LoadingCache.java:34)
	at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:134)
	at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:319)
	at org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:572)
	at org.springframework.cglib.proxy.Enhancer.createClass(Enhancer.java:419)
	at org.springframework.aop.framework.ObjenesisCglibAopProxy.createProxyClassAndInstance(ObjenesisCglibAopProxy.java:57)
	at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:206)
	... 22 more

The application's environment

Which versions do you use?

• Spring (boot): 2.6.6
• grpc-java: 1.51.0
• grpc-spring-boot-starter: 2.14.0.RELEASE
• java: version + architecture (64bit?) 11
• Other relevant libraries...

Additional information

• Did it ever work before? with grpc-spring-boot-starter 2.11 and grpc-java 1.35 it work fine
• How can we reproduce it?
• Do you have a demo?

[michaldCX]

I do have an interceptor that using @aspect with this method:
@before("execution(public void io.grpc.BindableService+.*(..))")
public void beforeEachIncomingGrpcCall() {
context.restoreForIncomingGrpcCall();
}

And If I remove it the application start as well

[ST-DDT]

You can also exclude the auto configuration that adds the HealthServiceImpl.

grpc-spring/grpc-server-spring-boot-autoconfigure/src/main/java/net/devh/boot/grpc/server/autoconfigure/GrpcHealthServiceAutoConfiguration.java

Line 37 in e6cb044

@ConditionalOnProperty(prefix = "grpc.server", name = "health-service-enabled", matchIfMissing = true)

Note: I also had issues with overwriting Bindable.bind/making it non final as that bypassed spring security.

What does your

context.restoreForIncomingGrpcCall();

do?

[michaldCX]

I dont want to exclude the auto configuration since i do want the functionality of HealthServiceImpl.

context.restoreForIncomingGrpcCall(); Copied values from gRPC context into our contaext (We cannot populate our context directly in IncomingInterceptor, because interceptor and business logic may execute in different threads under high load)

[ST-DDT]

I dont know much about aspect entrypoint syntax. Maybe you can define an exclude somehow.
Please be careful when using thread locals in combination with streaming calls like this.

Grpc has a class called Context that can be used to store variables throughout the entire call. This library uses it to implememt the grpc request scope feature.
Have you considered scoping your context bean instead?
That way you can already use them in the interceptor.

https://grpc-ecosystem.github.io/grpc-spring/en/server/contextual-data.html

[ST-DDT]

Is there anything else we can help you with?