Eureka Server Packaged in War not running in tomcat.

[lobmarib]

Describe the bug
A Spring Boot application as Eureka Server, packaged in a war doesn't work on tomcat (11).

Error log:

2026-01-20T14:01:23.428Z  WARN 84577 --- [server] [alina-utility-2] WarDeploymentApplicationContextFactory$1 : Exception encountered during context initialization - cancelling refresh attempt: java.lang.IllegalStateException: Error processing condition on org.springframework.cloud.netflix.eureka.server.EurekaServerAutoConfiguration.replicationClientAdditionalFilters
2026-01-20T14:01:23.434Z  INFO 84577 --- [server] [alina-utility-2] .s.b.a.l.ConditionEvaluationReportLogger : 

Error starting ApplicationContext. To display the condition evaluation report re-run your application with 'debug' enabled.
2026-01-20T14:01:23.442Z ERROR 84577 --- [server] [alina-utility-2] o.s.boot.SpringApplication               : Application run failed

java.lang.IllegalStateException: Error processing condition on org.springframework.cloud.netflix.eureka.server.EurekaServerAutoConfiguration.replicationClientAdditionalFilters
	at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:60) ~[spring-boot-autoconfigure-4.0.1.jar:4.0.1]
	at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:100) ~[spring-context-7.0.2.jar:7.0.2]
	at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForBeanMethod(ConfigurationClassBeanDefinitionReader.java:196) ~[spring-context-7.0.2.jar:7.0.2]
	at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:148) ~[spring-context-7.0.2.jar:7.0.2]
	at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:124) ~[spring-context-7.0.2.jar:7.0.2]
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:458) ~[spring-context-7.0.2.jar:7.0.2]
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:310) ~[spring-context-7.0.2.jar:7.0.2]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:349) ~[spring-context-7.0.2.jar:7.0.2]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:118) ~[spring-context-7.0.2.jar:7.0.2]
	at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:794) ~[spring-context-7.0.2.jar:7.0.2]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:602) ~[spring-context-7.0.2.jar:7.0.2]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:756) ~[spring-boot-4.0.1.jar:4.0.1]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:445) ~[spring-boot-4.0.1.jar:4.0.1]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:321) ~[spring-boot-4.0.1.jar:4.0.1]
	at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:205) ~[spring-boot-4.0.1.jar:4.0.1]
	at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:181) ~[spring-boot-4.0.1.jar:4.0.1]
	at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:109) ~[spring-boot-4.0.1.jar:4.0.1]
	at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:171) ~[spring-web-7.0.2.jar:7.0.2]
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4416) ~[catalina.jar:11.0.15]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164) ~[catalina.jar:11.0.15]
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:564) ~[catalina.jar:11.0.15]
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:663) ~[catalina.jar:11.0.15]
	at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:923) ~[catalina.jar:11.0.15]
	at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1839) ~[catalina.jar:11.0.15]
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:545) ~[na:na]
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:328) ~[na:na]
	at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:81) ~[tomcat-util.jar:11.0.15]
	at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:124) ~[na:na]
	at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:727) ~[catalina.jar:11.0.15]
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:378) ~[catalina.jar:11.0.15]
	at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1628) ~[catalina.jar:11.0.15]
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:260) ~[catalina.jar:11.0.15]
	at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:109) ~[catalina.jar:11.0.15]
	at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:938) ~[catalina.jar:11.0.15]
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1137) ~[catalina.jar:11.0.15]
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1141) ~[catalina.jar:11.0.15]
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1119) ~[catalina.jar:11.0.15]
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:545) ~[na:na]
	at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:369) ~[na:na]
	at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:310) ~[na:na]
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1095) ~[na:na]
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:619) ~[na:na]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:57) ~[tomcat-util.jar:11.0.15]
	at java.base/java.lang.Thread.run(Thread.java:1447) ~[na:na]
Caused by: java.lang.IllegalStateException: @ConditionalOnMissingBean did not specify a bean using type, name or annotation and the attempt to deduce the bean's type failed
	at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.validate(OnBeanCondition.java:654) ~[spring-boot-autoconfigure-4.0.1.jar:4.0.1]
	at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.<init>(OnBeanCondition.java:600) ~[spring-boot-autoconfigure-4.0.1.jar:4.0.1]
	at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchOutcome(OnBeanCondition.java:147) ~[spring-boot-autoconfigure-4.0.1.jar:4.0.1]
	at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:47) ~[spring-boot-autoconfigure-4.0.1.jar:4.0.1]
	... 43 common frames omitted
Caused by: org.springframework.boot.autoconfigure.condition.OnBeanCondition$BeanTypeDeductionException: Failed to deduce bean type for org.springframework.cloud.netflix.eureka.server.EurekaServerAutoConfiguration.replicationClientAdditionalFilters
	at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.deducedBeanTypeForBeanMethod(OnBeanCondition.java:683) ~[spring-boot-autoconfigure-4.0.1.jar:4.0.1]
	at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.deducedBeanType(OnBeanCondition.java:673) ~[spring-boot-autoconfigure-4.0.1.jar:4.0.1]
	at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.<init>(OnBeanCondition.java:593) ~[spring-boot-autoconfigure-4.0.1.jar:4.0.1]
	... 45 common frames omitted
Caused by: java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.netflix.eureka.server.EurekaServerAutoConfiguration] from ClassLoader [ParallelWebappClassLoader
  context: server-0.0.1-SNAPSHOT
  delegate: false
----------> Parent Classloader:
java.net.URLClassLoader@1f17ae12
]
	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:483) ~[spring-core-7.0.2.jar:7.0.2]
	at org.springframework.util.ReflectionUtils.findMethod(ReflectionUtils.java:240) ~[spring-core-7.0.2.jar:7.0.2]
	at org.springframework.util.ReflectionUtils.findMethod(ReflectionUtils.java:221) ~[spring-core-7.0.2.jar:7.0.2]
	at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.findBeanMethod(OnBeanCondition.java:712) ~[spring-boot-autoconfigure-4.0.1.jar:4.0.1]
	at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.getMethodReturnType(OnBeanCondition.java:707) ~[spring-boot-autoconfigure-4.0.1.jar:4.0.1]
	at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.getReturnType(OnBeanCondition.java:691) ~[spring-boot-autoconfigure-4.0.1.jar:4.0.1]
	at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.deducedBeanTypeForBeanMethod(OnBeanCondition.java:680) ~[spring-boot-autoconfigure-4.0.1.jar:4.0.1]
	... 47 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/web/server/autoconfigure/ServerProperties
	at java.base/java.lang.Class.getDeclaredMethods0(Native Method) ~[na:na]
	at java.base/java.lang.Class.privateGetDeclaredMethods(Class.java:3035) ~[na:na]
	at java.base/java.lang.Class.getDeclaredMethods(Class.java:2331) ~[na:na]
	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:465) ~[spring-core-7.0.2.jar:7.0.2]
	... 53 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.web.server.autoconfigure.ServerProperties
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1225) ~[catalina.jar:11.0.15]
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1056) ~[catalina.jar:11.0.15]
	... 57 common frames omitted

20-Jan-2026 14:01:23.444 SEVERE [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployWAR Error deploying web application archive [server-0.0.1-SNAPSHOT.war]
	java.lang.IllegalStateException: Error starting child
		at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:567)
		at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:663)
		at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:923)
		at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1839)
		at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:545)
		at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:328)
		at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:81)
		at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:124)
		at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:727)
		at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:378)
		at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1628)
		at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:260)
		at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:109)
		at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:938)
		at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1137)
		at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1141)
		at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1119)
		at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:545)
		at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:369)
		at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:310)
		at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1095)
		at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:619)
		at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:57)
		at java.base/java.lang.Thread.run(Thread.java:1447)
	Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/server-0.0.1-SNAPSHOT]]
		at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:404)
		at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:179)
		at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:564)
		... 23 more
	Caused by: java.lang.IllegalStateException: Error processing condition on org.springframework.cloud.netflix.eureka.server.EurekaServerAutoConfiguration.replicationClientAdditionalFilters
		at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:60)
		at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:100)
		at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForBeanMethod(ConfigurationClassBeanDefinitionReader.java:196)
		at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:148)
		at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:124)
		at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:458)
		at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:310)
		at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:349)
		at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:118)
		at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:794)
		at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:602)
		at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:756)
		at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:445)
		at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
		at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:205)
		at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:181)
		at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:109)
		at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:171)
		at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4416)
		at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164)
		... 24 more
	Caused by: java.lang.IllegalStateException: @ConditionalOnMissingBean did not specify a bean using type, name or annotation and the attempt to deduce the bean's type failed
		at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.validate(OnBeanCondition.java:654)
		at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.<init>(OnBeanCondition.java:600)
		at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchOutcome(OnBeanCondition.java:147)
		at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:47)
		... 43 more
	Caused by: org.springframework.boot.autoconfigure.condition.OnBeanCondition$BeanTypeDeductionException: Failed to deduce bean type for org.springframework.cloud.netflix.eureka.server.EurekaServerAutoConfiguration.replicationClientAdditionalFilters
		at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.deducedBeanTypeForBeanMethod(OnBeanCondition.java:683)
		at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.deducedBeanType(OnBeanCondition.java:673)
		at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.<init>(OnBeanCondition.java:593)
		... 45 more
	Caused by: java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.netflix.eureka.server.EurekaServerAutoConfiguration] from ClassLoader [ParallelWebappClassLoader
  context: server-0.0.1-SNAPSHOT
  delegate: false
----------> Parent Classloader:
java.net.URLClassLoader@1f17ae12
]
		at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:483)
		at org.springframework.util.ReflectionUtils.findMethod(ReflectionUtils.java:240)
		at org.springframework.util.ReflectionUtils.findMethod(ReflectionUtils.java:221)
		at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.findBeanMethod(OnBeanCondition.java:712)
		at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.getMethodReturnType(OnBeanCondition.java:707)
		at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.getReturnType(OnBeanCondition.java:691)
		at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.deducedBeanTypeForBeanMethod(OnBeanCondition.java:680)
		... 47 more
	Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/web/server/autoconfigure/ServerProperties
		at java.base/java.lang.Class.getDeclaredMethods0(Native Method)
		at java.base/java.lang.Class.privateGetDeclaredMethods(Class.java:3035)
		at java.base/java.lang.Class.getDeclaredMethods(Class.java:2331)
		at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:465)
		... 53 more
	Caused by: java.lang.ClassNotFoundException: org.springframework.boot.web.server.autoconfigure.ServerProperties
		at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1225)
		at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1056)
		... 57 more
20-Jan-2026 14:01:23.444 INFO [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive [server-0.0.1-SNAPSHOT.war] has finished in [2,649] ms

Sample

To reproduce, use the Spring Initializr by selecting:

• java 25
• spring boot 4.0.1
• packaging war
• add dependencies: spring web, eureka server

Edit the Application java class to include the @EnableEurekaServer.
Build it and deploy the war into tomcat 11

Discussion started here

[lobmarib]

The Eureka client doesn't work either:

2026-01-20T15:13:14.868Z  WARN 59645 --- [eureka-client] [alina-utility-2] WarDeploymentApplicationContextFactory$1 : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.cloud.client.serviceregistry.AutoServiceRegistrationAutoConfiguration': Unsatisfied dependency expressed through field 'autoServiceRegistration': Error creating bean with name 'eurekaAutoServiceRegistration' defined in class path resource [org/springframework/cloud/netflix/eureka/EurekaClientAutoConfiguration.class]: Post-processing of merged bean definition failed
2026-01-20T15:13:14.873Z  INFO 59645 --- [eureka-client] [alina-utility-2] .s.b.a.l.ConditionEvaluationReportLogger : 

Error starting ApplicationContext. To display the condition evaluation report re-run your application with 'debug' enabled.
2026-01-20T15:13:14.884Z ERROR 59645 --- [eureka-client] [alina-utility-2] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.cloud.client.serviceregistry.AutoServiceRegistrationAutoConfiguration': Unsatisfied dependency expressed through field 'autoServiceRegistration': Error creating bean with name 'eurekaAutoServiceRegistration' defined in class path resource [org/springframework/cloud/netflix/eureka/EurekaClientAutoConfiguration.class]: Post-processing of merged bean definition failed
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:766) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:747) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:146) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:492) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1446) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:602) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:525) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:333) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:371) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:331) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:196) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.instantiateSingleton(DefaultListableBeanFactory.java:1218) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingleton(DefaultListableBeanFactory.java:1184) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:1121) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:993) ~[spring-context-7.0.2.jar:7.0.2]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:620) ~[spring-context-7.0.2.jar:7.0.2]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:756) ~[spring-boot-4.0.1.jar:4.0.1]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:445) ~[spring-boot-4.0.1.jar:4.0.1]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:321) ~[spring-boot-4.0.1.jar:4.0.1]
	at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:205) ~[spring-boot-4.0.1.jar:4.0.1]
	at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:181) ~[spring-boot-4.0.1.jar:4.0.1]
	at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:109) ~[spring-boot-4.0.1.jar:4.0.1]
	at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:171) ~[spring-web-7.0.2.jar:7.0.2]
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4416) ~[catalina.jar:11.0.15]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164) ~[catalina.jar:11.0.15]
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:564) ~[catalina.jar:11.0.15]
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:663) ~[catalina.jar:11.0.15]
	at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:923) ~[catalina.jar:11.0.15]
	at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1839) ~[catalina.jar:11.0.15]
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:545) ~[na:na]
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:328) ~[na:na]
	at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:81) ~[tomcat-util.jar:11.0.15]
	at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:125) ~[na:na]
	at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:727) ~[catalina.jar:11.0.15]
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:378) ~[catalina.jar:11.0.15]
	at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1628) ~[catalina.jar:11.0.15]
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:260) ~[catalina.jar:11.0.15]
	at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:109) ~[catalina.jar:11.0.15]
	at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:938) ~[catalina.jar:11.0.15]
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1137) ~[catalina.jar:11.0.15]
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1141) ~[catalina.jar:11.0.15]
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1119) ~[catalina.jar:11.0.15]
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:545) ~[na:na]
	at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:369) ~[na:na]
	at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:310) ~[na:na]
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1090) ~[na:na]
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:614) ~[na:na]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:57) ~[tomcat-util.jar:11.0.15]
	at java.base/java.lang.Thread.run(Thread.java:1474) ~[na:na]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'eurekaAutoServiceRegistration' defined in class path resource [org/springframework/cloud/netflix/eureka/EurekaClientAutoConfiguration.class]: Post-processing of merged bean definition failed
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:580) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:525) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:333) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:371) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:331) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:201) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:229) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1762) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1651) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:763) ~[spring-beans-7.0.2.jar:7.0.2]
	... 48 common frames omitted
Caused by: java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.netflix.eureka.serviceregistry.EurekaAutoServiceRegistration] from ClassLoader [ParallelWebappClassLoader
  context: eureka-client-0.0.1-SNAPSHOT
  delegate: false
----------> Parent Classloader:
java.net.URLClassLoader@76fb509a
]
	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:483) ~[spring-core-7.0.2.jar:7.0.2]
	at org.springframework.util.ReflectionUtils.doWithLocalMethods(ReflectionUtils.java:320) ~[spring-core-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.buildLifecycleMetadata(InitDestroyAnnotationBeanPostProcessor.java:295) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.findLifecycleMetadata(InitDestroyAnnotationBeanPostProcessor.java:272) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.findLifecycleMetadata(InitDestroyAnnotationBeanPostProcessor.java:201) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(InitDestroyAnnotationBeanPostProcessor.java:181) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(CommonAnnotationBeanPostProcessor.java:290) ~[spring-context-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:1114) ~[spring-beans-7.0.2.jar:7.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:577) ~[spring-beans-7.0.2.jar:7.0.2]
	... 57 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/web/server/context/WebServerInitializedEvent
	at java.base/java.lang.Class.getDeclaredMethods0(Native Method) ~[na:na]
	at java.base/java.lang.Class.privateGetDeclaredMethods(Class.java:3010) ~[na:na]
	at java.base/java.lang.Class.getDeclaredMethods(Class.java:2329) ~[na:na]
	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:465) ~[spring-core-7.0.2.jar:7.0.2]
	... 65 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.web.server.context.WebServerInitializedEvent
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1225) ~[catalina.jar:11.0.15]
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1056) ~[catalina.jar:11.0.15]
	... 69 common frames omitted

20-Jan-2026 15:13:14.887 SEVERE [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployWAR Error deploying web application archive [eureka-client-0.0.1-SNAPSHOT.war]
	java.lang.IllegalStateException: Error starting child
		at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:567)
		at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:663)
		at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:923)
		at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1839)
		at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:545)
		at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:328)
		at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:81)
		at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:125)
		at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:727)
		at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:378)
		at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1628)
		at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:260)
		at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:109)
		at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:938)
		at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1137)
		at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1141)
		at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1119)
		at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:545)
		at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:369)
		at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:310)
		at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1090)
		at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:614)
		at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:57)
		at java.base/java.lang.Thread.run(Thread.java:1474)
	Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/eureka-client-0.0.1-SNAPSHOT]]
		at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:404)
		at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:179)
		at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:564)
		... 23 more
	Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.cloud.client.serviceregistry.AutoServiceRegistrationAutoConfiguration': Unsatisfied dependency expressed through field 'autoServiceRegistration': Error creating bean with name 'eurekaAutoServiceRegistration' defined in class path resource [org/springframework/cloud/netflix/eureka/EurekaClientAutoConfiguration.class]: Post-processing of merged bean definition failed
		at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:766)
		at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:747)
		at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:146)
		at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:492)
		at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1446)
		at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:602)
		at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:525)
		at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:333)
		at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:371)
		at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:331)
		at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:196)
		at org.springframework.beans.factory.support.DefaultListableBeanFactory.instantiateSingleton(DefaultListableBeanFactory.java:1218)
		at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingleton(DefaultListableBeanFactory.java:1184)
		at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:1121)
		at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:993)
		at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:620)
		at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:756)
		at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:445)
		at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
		at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:205)
		at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:181)
		at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:109)
		at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:171)
		at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4416)
		at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164)
		... 24 more
	Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'eurekaAutoServiceRegistration' defined in class path resource [org/springframework/cloud/netflix/eureka/EurekaClientAutoConfiguration.class]: Post-processing of merged bean definition failed
		at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:580)
		at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:525)
		at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:333)
		at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:371)
		at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:331)
		at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:201)
		at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:229)
		at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1762)
		at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1651)
		at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:763)
		... 48 more
	Caused by: java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.netflix.eureka.serviceregistry.EurekaAutoServiceRegistration] from ClassLoader [ParallelWebappClassLoader
  context: eureka-client-0.0.1-SNAPSHOT
  delegate: false
----------> Parent Classloader:
java.net.URLClassLoader@76fb509a
]
		at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:483)
		at org.springframework.util.ReflectionUtils.doWithLocalMethods(ReflectionUtils.java:320)
		at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.buildLifecycleMetadata(InitDestroyAnnotationBeanPostProcessor.java:295)
		at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.findLifecycleMetadata(InitDestroyAnnotationBeanPostProcessor.java:272)
		at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.findLifecycleMetadata(InitDestroyAnnotationBeanPostProcessor.java:201)
		at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(InitDestroyAnnotationBeanPostProcessor.java:181)
		at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(CommonAnnotationBeanPostProcessor.java:290)
		at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:1114)
		at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:577)
		... 57 more
	Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/web/server/context/WebServerInitializedEvent
		at java.base/java.lang.Class.getDeclaredMethods0(Native Method)
		at java.base/java.lang.Class.privateGetDeclaredMethods(Class.java:3010)
		at java.base/java.lang.Class.getDeclaredMethods(Class.java:2329)
		at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:465)
		... 65 more
	Caused by: java.lang.ClassNotFoundException: org.springframework.boot.web.server.context.WebServerInitializedEvent
		at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1225)
		at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1056)
		... 69 more

Same procedure as for the server, just replace in the spring initialzr Eureka Server by Eureka Client and include the url of the server into the properties:

eureka.client.service-url.defaultZone=http://localhost:8080/eureka/