Description Today I tried to upgrade our playground spring boot app from Java 14 to Java 16 and failed with that.
Problem The problem that occurs is related to the java module system. Here is the full stacktrace:
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'echoesService' defined in class path resource [de/dehst/platform/playground/service/modules/echoes/EchoesService.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'echoesRepository' defined in de.dehst.platform.playground.service.modules.echoes.EchoesRepository defined in @EnableJpaRepositories declared on Application: Cannot create inner bean '(inner bean)#389a9ff6' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#389a9ff6': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory': Post-processing of FactoryBean's singleton object failed; nested exception is java.lang.reflect.InaccessibleObjectException: Unable to make field private static final java.lang.reflect.Method jdk.proxy2.$Proxy166.m0 accessible: module jdk.proxy2 does not "opens jdk.proxy2" to unnamed module @324e4822
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:800) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:229) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1354) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1204) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:564) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1380) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1300) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:887) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791) ~[spring-beans-5.3.5.jar:5.3.5]
... 20 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'echoesRepository' defined in de.dehst.platform.playground.service.modules.echoes.EchoesRepository defined in @EnableJpaRepositories declared on Application: Cannot create inner bean '(inner bean)#389a9ff6' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#389a9ff6': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory': Post-processing of FactoryBean's singleton object failed; nested exception is java.lang.reflect.InaccessibleObjectException: Unable to make field private static final java.lang.reflect.Method jdk.proxy2.$Proxy166.m0 accessible: module jdk.proxy2 does not "opens jdk.proxy2" to unnamed module @324e4822
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:389) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:134) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1689) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1434) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:601) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1380) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1300) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:887) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791) ~[spring-beans-5.3.5.jar:5.3.5]
... 34 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#389a9ff6': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory': Post-processing of FactoryBean's singleton object failed; nested exception is java.lang.reflect.InaccessibleObjectException: Unable to make field private static final java.lang.reflect.Method jdk.proxy2.$Proxy166.m0 accessible: module jdk.proxy2 does not "opens jdk.proxy2" to unnamed module @324e4822
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:342) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:113) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:693) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:510) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1334) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:564) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:374) ~[spring-beans-5.3.5.jar:5.3.5]
... 48 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory': Post-processing of FactoryBean's singleton object failed; nested exception is java.lang.reflect.InaccessibleObjectException: Unable to make field private static final java.lang.reflect.Method jdk.proxy2.$Proxy166.m0 accessible: module jdk.proxy2 does not "opens jdk.proxy2" to unnamed module @324e4822
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:119) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1884) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getObjectForBeanInstance(AbstractAutowireCapableBeanFactory.java:1266) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:267) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:330) ~[spring-beans-5.3.5.jar:5.3.5]
... 56 common frames omitted
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make field private static final java.lang.reflect.Method jdk.proxy2.$Proxy166.m0 accessible: module jdk.proxy2 does not "opens jdk.proxy2" to unnamed module @324e4822
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:357) ~[na:na]
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297) ~[na:na]
at java.base/java.lang.reflect.Field.checkCanSetAccessible(Field.java:177) ~[na:na]
at java.base/java.lang.reflect.Field.setAccessible(Field.java:171) ~[na:na]
at org.springframework.util.ReflectionUtils.makeAccessible(ReflectionUtils.java:787) ~[spring-core-5.3.5.jar:5.3.5]
at io.kubernetes.client.spring.extended.manifests.KubernetesFromYamlProcessor.postProcessAfterInitialization(KubernetesFromYamlProcessor.java:63) ~[client-java-spring-integration-11.0.1.jar:na]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:437) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.postProcessObjectFromFactoryBean(AbstractAutowireCapableBeanFactory.java:1929) ~[spring-beans-5.3.5.jar:5.3.5]
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:116) ~[spring-beans-5.3.5.jar:5.3.5]
... 61 common frames omitted
extracting that down to
at org.springframework.util.ReflectionUtils.makeAccessible(ReflectionUtils.java:787) ~[spring-core-5.3.5.jar:5.3.5]
at io.kubernetes.client.spring.extended.manifests.KubernetesFromYamlProcessor.postProcessAfterInitialization(KubernetesFromYamlProcessor.java:63) ~[client-java-spring-integration-11.0.1.jar:na]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:437) ~[spring-beans-5.3.5.jar:5.3.5]
it looks like the issue comes from Spring Framework (ReflectionUtils) itself. It still might be reasonable to track it here, as the Spring version used is directly managed by Spring Boot.
Versions
- Spring Boot 2.4.4
- Spring Cloud 2020.0.2
- adoptopenjdk16 installed via sdkman
Environment
❯ ./gradlew --version
------------------------------------------------------------
Gradle 7.0-rc-2
------------------------------------------------------------
Build time: 2021-04-01 21:26:39 UTC
Revision: 912a3368b654b71250dfc92234da35a20d620393
Kotlin: 1.4.31
Groovy: 3.0.7
Ant: Apache Ant(TM) version 1.10.9 compiled on September 27 2020
JVM: 16 (AdoptOpenJDK 16+36)
OS: Mac OS X 10.16 x86_64
Side note The issue does not occur using adoptopenjdk15.
Workaround (with Gradle)
Setting languageVersion = JavaLanguageVersion.of(15) in the toolchain clojure to 15 works but then language level 16 feature do not compile any more.
Comment From: dreis2211
Since JDK16 internals are strongly encapsulated by default. (See https://openjdk.java.net/jeps/396)
https://github.com/kubernetes-client/java/blob/master/spring/src/main/java/io/kubernetes/client/spring/extended/manifests/KubernetesFromYamlProcessor.java is in my eyes the culprit here, which is not in the control of Boot. In this particular case it seems also relatively dangerous to try to change a static final field, so I'd argue this is something for https://github.com/kubernetes-client/java
You could probably try to fiddle around with --illegal-access=warn and --add-opens parameters in your application to workaround the current problems.
Maybe the team has something to add here, but I wanted to give my 5 cents on your problem.
Comment From: snicoll
Thanks @dreis2211, I agree.
it looks like the issue comes from Spring Framework (ReflectionUtils) itself. It still might be reasonable to track it here, as the Spring version used is directly managed by Spring Boot.
I don't understand that reasoning. If there is indeed an issue in spring framework, an issue in that project is required and shouldn't be created here.
Please report this issue to the Kubernetes client.