[BUG] appconfig 6.0.0 regression

[davidkarlsen]

Describe the bug
App config autoconfig fails after upgrading from 5.23.0 to 6.0.0.
deps:

<dependency>
      <groupId>com.azure.spring</groupId>
      <artifactId>spring-cloud-azure-appconfiguration-config-web</artifactId>
    </dependency>
    <dependency>
      <groupId>com.azure.spring</groupId>
      <artifactId>spring-cloud-azure-feature-management-web</artifactId>
    </dependency>

Exception or Stack Trace

2025-09-26 03:49:31.745 [main] ERROR o.s.boot.SpringApplication - Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'appConfigurationRefresh' defined in class path resource [com/azure/spring/cloud/appconfiguration/config/AppConfigurationWatchAutoConfiguration.class]: Failed to instantiate [com.azure.spring.cloud.appconfiguration.config.AppConfigurationRefresh]: Factory method 'appConfigurationRefresh' threw exception with message: com.azure.spring.cloud.appconfiguration.config.implementation.AppConfigurationReplicaClientFactory has not been registered
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:657)
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:645)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1375)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1205)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:569)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:529)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:339)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:373)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:337)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.instantiateSingleton(DefaultListableBeanFactory.java:1221)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingleton(DefaultListableBeanFactory.java:1187)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:1123)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:987)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:627)
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:439)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:318)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1361)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1350)
	at no.dnb.payment.sre.refapp.domainapi.Main.main(Main.java:16)
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.azure.spring.cloud.appconfiguration.config.AppConfigurationRefresh]: Factory method 'appConfigurationRefresh' threw exception with message: com.azure.spring.cloud.appconfiguration.config.implementation.AppConfigurationReplicaClientFactory has not been registered
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.lambda$instantiate$0(SimpleInstantiationStrategy.java:200)
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiateWithFactoryMethod(SimpleInstantiationStrategy.java:89)
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:169)
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653)
	... 21 common frames omitted
Caused by: java.lang.IllegalStateException: com.azure.spring.cloud.appconfiguration.config.implementation.AppConfigurationReplicaClientFactory has not been registered
	at org.springframework.boot.DefaultBootstrapContext.lambda$get$1(DefaultBootstrapContext.java:88)
	at org.springframework.boot.DefaultBootstrapContext.getOrElseThrow(DefaultBootstrapContext.java:109)
	at org.springframework.boot.DefaultBootstrapContext.get(DefaultBootstrapContext.java:88)
	at com.azure.spring.cloud.appconfiguration.config.AppConfigurationWatchAutoConfiguration.appConfigurationRefresh(AppConfigurationWatchAutoConfiguration.java:41)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.lambda$instantiate$0(SimpleInstantiationStrategy.java:172)
	... 24 common frames omitted
Disconnected from the target VM, address: '127.0.0.1:51825', transport: 'socket'

To Reproduce
Upgrade as described

Code Snippet
config in bootstrap.yaml:

spring:
  cloud:
    azure:
      appconfiguration:
        stores:
          - endpoint: ${APP_CONFIG_ENDPOINT}
            feature-flags:
              enabled: true
              selects:
                - label-filter: sre-refapp

Expected behavior
Should not break.
If intended breaking-change - have docs on howto transition

Screenshots
If applicable, add screenshots to help explain your problem.

Setup (please complete the following information):
6.0.0 SDK, SB 3.5.6, java 21

If you suspect a dependency version mismatch (e.g. you see NoClassDefFoundError, NoSuchMethodError or similar), please check out Troubleshoot dependency version conflict article first. If it doesn't provide solution for the problem, please provide:

• verbose dependency tree (mvn dependency:tree -Dverbose)
• exception message, full stack trace, and any available logs

Additional context
Adding replica-discovery-enabled: false to the stores config doesn't help.

Information Checklist
Kindly make sure that you have added all the following information above and checkoff the required fields otherwise we will treat the issuer as an incomplete report

• Bug Description Added
• Repro Steps Added
• Setup information Added

[github-actions]

@moarychan @Netyyyy @rujche @saragluna

[github-actions]

Thank you for your feedback. Tagging and routing to the team member best able to assist.

[davidkarlsen]

Any update?