No backing TransactionOperations configured.

[delta12kilo]

I recently upgraded my micronaut version from 3 to 4,
but im getting Transactional errors while running the Tests, I have also migrated all the javax dependency to jakarta.

io.micronaut.context.exceptions.ConfigurationException: No backing TransactionOperations configured. Check your configuration and try again

at io.micronaut.transaction.support.DefaultTransactionOperationsRegistry.provideSynchronous(DefaultTransactionOperationsRegistry.java:51)
at io.micronaut.transaction.interceptor.TransactionalInterceptor.lambda$intercept$0(TransactionalInterceptor.java:108)
at java.base/java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1708)
at io.micronaut.transaction.interceptor.TransactionalInterceptor.intercept(TransactionalInterceptor.java:94)
at io.micronaut.aop.chain.MethodInterceptorChain.proceed(MethodInterceptorChain.java:137)
at com.bravura.payments.payment.service.impl.$PermissionServiceImpl$Definition$Intercepted.getPermissionDetails(Unknown Source)
at com.bravura.payments.payment.service.PermissionServiceTest.getPermissionDetailsTest(PermissionServiceTest.java:50)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at io.micronaut.test.extensions.junit5.MicronautJunit5Extension$2.proceed(MicronautJunit5Extension.java:142)
at io.micronaut.test.extensions.AbstractMicronautExtension.interceptEach(AbstractMicronautExtension.java:157)
at io.micronaut.test.extensions.AbstractMicronautExtension.interceptTest(AbstractMicronautExtension.java:114)
at io.micronaut.test.extensions.junit5.MicronautJunit5Extension.interceptTestMethod(MicronautJunit5Extension.java:129)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)

Caused by: io.micronaut.context.exceptions.NoSuchBeanException: No bean of type [io.micronaut.transaction.TransactionOperations] exists.
at io.micronaut.context.DefaultBeanContext.newNoSuchBeanException(DefaultBeanContext.java:2766)
at io.micronaut.context.DefaultApplicationContext.newNoSuchBeanException(DefaultApplicationContext.java:304)
at io.micronaut.context.DefaultBeanContext.resolveBeanRegistration(DefaultBeanContext.java:2735)
at io.micronaut.context.DefaultBeanContext.getBean(DefaultBeanContext.java:1729)
at io.micronaut.context.DefaultBeanContext.getBean(DefaultBeanContext.java:856)
at io.micronaut.context.DefaultBeanContext.getBean(DefaultBeanContext.java:841)
at io.micronaut.transaction.support.DefaultTransactionOperationsRegistry.provideSynchronous(DefaultTransactionOperationsRegistry.java:49)
... 13 more

[Nahuel92]

Hi, I have the same issue in a test class that has repositories mocked but I couldn't find the cause yet.

[Nahuel92]

Hey, if it helps, in my case the da#m issue was caused by a wrong Java version set in the pom file (I'm using Maven). As soon as I fixed that issue (Maven infrastructure is complex in my case, it involves a couple of pom files), tests started to work fine.

Ignore that, I started noticing this error again. I wonder if there is a bug that makes Micronaut to try to apply a Transaction interceptor even for mocked repos.

[Nahuel92]

Hey, I finally isolated the issue. If your repositories' methods are annotated with either @jakarta.transaction.Transactional or @io.micronaut.transaction.annotation.Transactional tests will fail. Move the annotation to the class level, do a mvn clean and then tests will pass.
I opened a bug report here.

[delta12kilo]

thanks, that is what i did and it worked.

[M-PRANAY]

I am exactly stuck at same error, However my @Transactional annotation is at class level rather than at methods, but still facing this

[Nahuel92]

Hi!

While you haven't mentioned where in your app do you get the error, if it's during tests or when running the app normally, I suggest upgrading to the latest version, that should fix the issue for good.

[M-PRANAY]

Got it working now, It was a dependency issue for me