Cannot invoke "org.springframework.cloud.netflix.eureka.CloudEurekaClient.getApplications()

[weiro-9-w7]

Describe the bug
I view the document , but I want to know how to config it when we have the resttemplate & Jersey.

Sample
I write a demo to show the issue,
The demo contains eureka server & two eureka clients.
The client 02 only more dependency than client 01:

    <dependency>
        <groupId>org.glassfish.jersey.core</groupId>
        <artifactId>jersey-client</artifactId>
        <version>3.1.5</version>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.core</groupId>
        <artifactId>jersey-common</artifactId>
        <version>3.1.5</version>
    </dependency>

the client 01 starts normally, but the client 02 throw exception:

org.springframework.context.ApplicationContextException: Failed to start bean 'eurekaAutoServiceRegistration'
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:181) ~[spring-context-6.0.9.jar:6.0.9]
at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:356) ~[spring-context-6.0.9.jar:6.0.9]
at java.base/java.lang.Iterable.forEach(Iterable.java:75) ~[na:na]
at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:155) ~[spring-context-6.0.9.jar:6.0.9]
at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:123) ~[spring-context-6.0.9.jar:6.0.9]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:958) ~[spring-context-6.0.9.jar:6.0.9]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:611) ~[spring-context-6.0.9.jar:6.0.9]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.1.0.jar:3.1.0]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:733) ~[spring-boot-3.1.0.jar:3.1.0]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:435) ~[spring-boot-3.1.0.jar:3.1.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:311) ~[spring-boot-3.1.0.jar:3.1.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1305) ~[spring-boot-3.1.0.jar:3.1.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1294) ~[spring-boot-3.1.0.jar:3.1.0]
at com.robert.wei.eureka.client.test.second.EurekaRegisterClientSecond.main(EurekaRegisterClientSecond.java:12) ~[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:54) ~[spring-cloud-netflix-eureka-client-4.0.4.jar:4.0.4]
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaServiceRegistry.register(EurekaServiceRegistry.java:38) ~[spring-cloud-netflix-eureka-client-4.0.4.jar:4.0.4]
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaAutoServiceRegistration.start(EurekaAutoServiceRegistration.java:83) ~[spring-cloud-netflix-eureka-client-4.0.4.jar:4.0.4]
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:178) ~[spring-context-6.0.9.jar:6.0.9]
... 13 common frames omitted

[weiro-9-w7]

the demo url : demo
and i view the document show how to config when contains restTemplate & webclient. document;

[krezovic]

#4185