org.springframework.context.ApplicationContextException: Failed to start bean 'eurekaAutoServiceRegistration'

org.springframework.context.ApplicationContextException: Failed to start bean 'eurekaAutoServiceRegistration'
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:408) ~[spring-context-6.2.9.jar:6.2.9]
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:394) ~[spring-context-6.2.9.jar:6.2.9]
at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:586) ~[spring-context-6.2.9.jar:6.2.9]
at java.base/java.lang.Iterable.forEach(Iterable.java:75) ~[na:na]
at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:364) ~[spring-context-6.2.9.jar:6.2.9]
at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:310) ~[spring-context-6.2.9.jar:6.2.9]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:1006) ~[spring-context-6.2.9.jar:6.2.9]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:630) ~[spring-context-6.2.9.jar:6.2.9]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.5.4.jar:3.5.4]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752) ~[spring-boot-3.5.4.jar:3.5.4]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:439) ~[spring-boot-3.5.4.jar:3.5.4]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:318) ~[spring-boot-3.5.4.jar:3.5.4]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1361) ~[spring-boot-3.5.4.jar:3.5.4]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1350) ~[spring-boot-3.5.4.jar:3.5.4]
at maxtheservice.devops.demo.DemoApplication.main(DemoApplication.java:13) ~[classes/:na]
Caused by: java.lang.NullPointerException: Cannot invoke "org.springframework.cloud.netflix.eureka.CloudEurekaClient.getApplications()" because the return value of "org.springframework.cloud.netflix.eureka.serviceregistry.EurekaRegistration.getEurekaClient()" is null
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaServiceRegistry.maybeInitializeClient(EurekaServiceRegistry.java:83) ~[spring-cloud-netflix-eureka-client-4.3.0.jar:4.3.0]
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaServiceRegistry.register(EurekaServiceRegistry.java:66) ~[spring-cloud-netflix-eureka-client-4.3.0.jar:4.3.0]
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaAutoServiceRegistration.start(EurekaAutoServiceRegistration.java:89) ~[spring-cloud-netflix-eureka-client-4.3.0.jar:4.3.0]
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:405) ~[spring-context-6.2.9.jar:6.2.9]

Start at DemoApplication.java:13 and trace the startup path through EurekaAutoServiceRegistration.java and EurekaServiceRegistry.java:83, using the provided stack trace as the entry point. Determine the configuration or lifecycle condition that leaves EurekaRegistration.getEurekaClient() null, then verify the fix with a reproducible startup case and regression coverage if the repository provides a suitable test location.