I am using Spring Boot with Hystrix for my university project.
The problem I have is when I add Netflix Hystrix dependency to pom.xml file and run the program, It throws an Error called AbstractMethodError : null, but without Netflix Hystrix dependency program runs without any error. How can I slove this?
These are my dependencies
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-hystrix-dashboard</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
This is due to dependency mismatch. Application is trying to call an abstractt method but it doesn't find that method. So, it is throwing the null exception.
Use two dependency netflix-hystrix-dashboard and hystrix as below.
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-hystrix</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-hystrix-dashboard</artifactId>
</dependency>
Related
I have created spring boot project with Spring WebFlux. Idea is to learn the Spring WebClient and related stuff. On start of application, I am getting below error
Error creating bean with name 'loadBalancerWebClientBuilderBeanPostProcessor' defined in class path resource [org/springframework/cloud/client/loadbalancer/reactive/LoadBalancerBeanPostProcessorAutoConfiguration.class]:
Unsatisfied dependency expressed through method 'loadBalancerWebClientBuilderBeanPostProcessor' parameter 0; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException:
No qualifying bean of type 'org.springframework.cloud.client.loadbalancer.reactive.DeferringLoadBalancerExchangeFilterFunction<?>' available: expected at least 1 bean which qualifies as autowire candidate.
Dependency annotations: {}
I have dependencies like spring-cloud-dependencies/spring-boot-starter*/spring-cloud-context in my maven dependencies. Error just giving information that DeferrringLoadBalancerExchangeFilterFunction is not available, I have tried to inject it using #Bean in my configuration class. But error still persists. Please advice
Posting dependencies in pom.xml
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Hoxton.SR9</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-oauth2-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-kubernetes-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-kubernetes-all</artifactId>
</dependency>
<!-- 3rd Party Dependencies -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct</artifactId>
<version>${org.mapstruct.version}</version>
</dependency>
<dependency>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-processor</artifactId>
<version>${org.mapstruct.version}</version>
</dependency>
<dependency>
<groupId>com.microsoft.azure</groupId>
<artifactId>azure-keyvault-secrets-spring-boot-starter</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-context</artifactId>
<version>2.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
<!--Dependency for registering your app as a Spring Boot Admin Client-->
<dependency>
<groupId>de.codecentric</groupId>
<artifactId>spring-boot-admin-starter-client</artifactId>
<version>2.2.2</version>
</dependency>
<dependency>
<groupId>de.codecentric</groupId>
<artifactId>spring-boot-admin-dependencies</artifactId>
<version>2.2.2</version>
<type>pom</type>
</dependency>
<dependency>
<groupId>org.jolokia</groupId>
<artifactId>jolokia-core</artifactId>
</dependency>
<!--spring dependencies-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-feign</artifactId>
<version>1.4.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-jwt</artifactId>
<version>1.1.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!--swagger dependency-->
<dependency>
<groupId>org.springdoc</groupId>
<artifactId>springdoc-openapi-ui</artifactId>
<version>1.4.4</version>
</dependency>
<!--3rd party dependencies-->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.12</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.auth0</groupId>
<artifactId>jwks-rsa</artifactId>
<version>0.14.0</version>
</dependency>
<dependency>
<groupId>io.github.openfeign</groupId>
<artifactId>feign-gson</artifactId>
<version>9.3.1</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>1.9.6</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.9.6</version>
</dependency>
<dependency>
<groupId>com.nimbusds</groupId>
<artifactId>nimbus-jose-jwt</artifactId>
</dependency>
Please note that i use feign client as well as web client in my code. Not sure whether that has an impact
Adding dependency to org.springframework.cloud:spring-cloud-starter-loadbalancer helped in my case, as adviced by #OlgaMaciaszek
Looks like I faced the problem with similar root cause.
To use Spring Cloud with Spring Boot you have to respect versions compatibility.
I had a project based on Spring Boot (2.3.12.RELEASE) and Spring Cloud (Hoxton.SR11) which is fine.
But I also tried to use the latest version of com.playtika.reactivefeign:feign-reactive:3.0.3 which actually relies on Spring Cloud (2020.0.x)
As a result I've faced the same error
Error creating bean with name 'loadBalancerWebClientBuilderBeanPostProcessor'`
In my case I've downgraded reactivefeign version to 2.0.31
I have resolved this by removing unnecessary dependency which was causing issues for this issue that is :
'org.springframework.cloud.client.loadbalancer.reactive.DeferringLoadBalancerExchangeFilterFunction' that could not be found.
<artifactId>spring-boot-starter-webflux</artifactId>
I'm trying to start a new sample project using for process Kinesis Stream but I'm getting the following error:
Exception in thread "-kinesis-consumer-1" java.lang.NoSuchFieldError: logger
at org.springframework.integration.aws.inbound.kinesis.KinesisMessageDrivenChannelAdapter.access$5400(KinesisMessageDrivenChannelAdapter.java:100)
at org.springframework.integration.aws.inbound.kinesis.KinesisMessageDrivenChannelAdapter$ShardConsumer.lambda$execute$0(KinesisMessageDrivenChannelAdapter.java:941)
And those are my pom dependencies:
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-stream</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-stream-binder-kinesis</artifactId>
<version>LATEST</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-kinesis</artifactId>
<version>1.11.632</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-stream</artifactId>
<scope>test</scope>
<classifier>test-binder</classifier>
<type>test-jar</type>
</dependency>
</dependencies>
The sample code of Spring Cloud with Kinesis is outdated, so I tried use newest dependencies.
Anyway, someone can help?
You probably try to use the latest Spring Boot 2.4.x which brings for us Spring Integration 5.4 already. And this one is not compatible with the latest Spring Integration AWS, which is still based on the Spring Integration 5.3.x.
Let's see if you still can stick with Spring Boot 2.3.x!
I'd like to work with Redis for manipulating sessions.But I get failure when running the spring boot app.So I guess that this error is coming from maven dependencies especially version conflicts.
Here is my maven dependencies:
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-data-redis</artifactId>
<version>1.7.0.RELEASE</version>
</dependency>
<dependency>
<groupId>io.lettuce</groupId>
<artifactId>lettuce-core</artifactId>
<version>5.0.0.RELEASE</version>
</dependency>
</dependencies>
Notice that I added two dependencies in above pom.xml which there artifactId are spring-session-data-redis and lettuce-core.These dependencies are respectively responsible for Redis connection and ensuring thread safety for session connections.
When I run the spring boot app, I get the belowed error:
APPLICATION FAILED TO START
Description:
An attempt was made to call the method org.springframework.data.redis.connection.RedisConnection.getConfig(Ljava/lang/String;)Ljava/util/List; but it does not exist. Its class, org.springframework.data.redis.connection.RedisConnection, is available from the following locations:
jar:file:/C:/Users/aoutir/.m2/repository/org/springframework/data/spring-data-redis/2.0.10.RELEASE/spring-data-redis-2.0.10.RELEASE.jar!/org/springframework/data/redis/connection/RedisConnection.class
It was loaded from the following location:
file:/C:/Users/aoutir/.m2/repository/org/springframework/data/spring-data-redis/2.0.10.RELEASE/spring-data-redis-2.0.10.RELEASE.jar
Action:
Correct the classpath of your application so that it contains a single, compatible version of org.springframework.data.redis.connection.RedisConnection
Please any help is very appreciated,thanks in advance for your reply.
I have spent a whole day to resolve the exactly same issue. And after a whole day R&D, I found the solution.
dependencies {
implementation('org.springframework.boot:spring-boot-starter-data-jpa')
implementation('org.springframework.boot:spring-boot-starter-data-rest')
implementation('org.springframework.boot:spring-boot-starter-web')
implementation('org.springframework.boot:spring-boot-starter-security')
implementation('org.springframework.boot:spring-boot-starter-data-redis')
implementation('org.springframework.session:spring-session-data-redis')
runtimeOnly('org.springframework.boot:spring-boot-devtools')
testImplementation('org.springframework.boot:spring-boot-starter-test')
runtimeOnly('org.flywaydb:flyway-core')
runtimeOnly('com.h2database:h2')
// runtimeOnly('mysql:mysql-connector-java')
}
Use 'spring-boot-starter-data-redis' and 'spring-session-data-redis'.
Remove lettuse dependency as it is included in spring-boot-starter-data-redis as dependency.
Here is your dependencies:
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-data-redis</artifactId>
</dependency>
Simply delete the explicit version for spring-session-data-redis and go with the version from the spring boot parent pom.
If you want to change the version of spring-session-data-redis, you have to ensure that none of the transitive dependencies is managed by the parent pom. If I downgrade to version 1.3 (version 1.7 could not be found) I end up with the following version mismatch as revealed by mvn -X dependency:tree:
[ESC[1;36mDEBUGESC[m] org.springframework.session:spring-session-data-redis:jar:1.3.3.RELEASE:compile
[ESC[1;36mDEBUGESC[m] org.apache.commons:commons-pool2:jar:2.5.0:compile (version managed from 2.4.2)
[ESC[1;36mDEBUGESC[m] org.springframework.data:spring-data-redis:jar:2.0.10.RELEASE:compile (version managed from 1.7.10.RELEASE)
Please replace the dependency
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-data-redis</artifactId>
<version>1.7.0.RELEASE</version>
</dependency>
with
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-redis</artifactId>
</dependency>
The version management is done automatically and the started will initialize the redis cache.
I probably have an issue with my POM in my SpringBoot App.
Currently I am trying to access my Keycloak Server with the
"admin-client-keycloak"
But on the call:
Response response = getInstance().realm(REALM).users().create(user);
I get Error:
java.lang.NoSuchMethodError: javax.ws.rs.core.UriBuilder.resolveTemplates(Ljava/util/Map;)Ljavax/ws/rs/core/UriBuilder;
at org.jboss.resteasy.client.jaxrs.internal.ClientWebTarget.resolveTemplates(ClientWebTarget.java:178) ~[resteasy-client-3.5.1.Final.jar:3.5.1.Final]
at org.jboss.resteasy.client.jaxrs.internal.proxy.SubResourceInvoker.invoke(SubResourceInvoker.java:65) ~[resteasy-client-3.5.1.Final.jar:3.5.1.Final]
at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientProxy.invoke(ClientProxy.java:76) ~[resteasy-client-3.5.1.Final.jar:3.5.1.Final]
at com.sun.proxy.$Proxy198.realm(Unknown Source) ~[na:na]
at org.keycloak.admin.client.Keycloak.realm(Keycloak.java:118) ~[keycloak-admin-client-3.4.3.Final.jar:3.4.3.Final]
To be honest: I am not a Maven expert and stitched it together from several web soultions and I expect that some parts are still outdated or something.
the POM dependecys:
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>1.5.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<version>1.5.3.RELEASE</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>6.0.6</version>
<scope>runtime</scope>
</dependency>
<!-- Keycloak -->
<dependency>
<groupId>org.keycloak</groupId>
<artifactId>keycloak-spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.keycloak</groupId>
<artifactId>keycloak-admin-client</artifactId>
<version>3.4.3.Final</version>
</dependency>
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-client</artifactId>
<version>3.5.1.Final</version>
</dependency>
<!-- JUnit -->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>${junit.jupiter.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jersey</artifactId>
<version>2.0.2.RELEASE</version>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.keycloak.bom</groupId>
<artifactId>keycloak-adapter-bom</artifactId>
<version>3.4.3.Final</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
The Error occurs from the 'keycloak-admin-client' module.
Now the main question is:
Whats the problem? Or is it realy a bug inside the version of 'keycloak-admin-client'?
I guess not which leads my to a second question:
How can I found out what I need to change in a situation like this?
Thanks in advance for all suggestions. I primary want to learn how to solve such issues by my own in future.
Kind regards
Gregor
EDIT:
Well I am a step further but the issue is still there.
The POM I show you here is a POM of library which is used in other projects.
These Project have a 'spring-Boot-starter' which are using the 'jersey' version:1.54.
So the problem seems clear.
I added the 'jersey 2.0.2' dependency in the final project POM
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jersey</artifactId>
<version>2.0.2.RELEASE</version>
</dependency>
But the issue still exists.
How can I force maven use the 2.0.2 version and override the 1.5.?
Only adding the dependecy doesnt seems to help.
Some of the other dependencies are using a different version of the lib jsr311-api. In my case it was the eureka client. I just added an exclude with this dependency in the pom and it worked
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
<exclusions>
<exclusion>
<groupId>javax.ws.rs</groupId>
<artifactId>jsr311-api</artifactId>
</exclusion>
</exclusions>
</dependency>
Please make sure UriBuilder class exist on your project. And make sure only one UriBuilder class (version) exist in your project. (It can be multiple on your project with different versions.) Different versions can be overlapped.
keycloak-admin-client version should same with your keycloak server version.
add additional dependency to pom (versions must be added, for keycloak 3.0.0.Final => resteasy dependecies 3.5.0.Final works for me. Dependencies must be complied.)
<dependency>
<groupId>org.keycloak</groupId>
<artifactId>keycloak-admin-client</artifactId>
</dependency>
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-client</artifactId>
</dependency>
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-jackson2-provider</artifactId>
</dependency>
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-multipart-provider</artifactId>
</dependency>
Note: This is my suggestion, if you are develop multi-layer app. You can divide your project to layers. You can divide your spring boot starter app and keycloak access layer. And use this new project as dependecy.
edit,
see Failed adding user by keycloak-admin-client to Keycloak due to "unknown resource"
i hope these can helps.
I've a Spring Boot application where one of the dependencies is using spring and a embedded jetty to start an ad-hoc web server. This causes my spring boot app to start in a jetty instead of a tomcat.
My spring-boot-starter-web:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-websocket</artifactId>
</exclusion>
</exclusions>
</dependency>
The dependencies pom:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-http</artifactId>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-server</artifactId>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-servlet</artifactId>
</dependency>
Is there a possibility to configure the server to use by spring boot explicitly instead of being inferred by the dependency tree?
EDIT
I investigated the issue a little bit further and created a repo to reproduce the issue: github.com/svettwer/spring-server-test
org.eclipse.jetty.websocket:javax-websocket-server-impl causes spring to start with jetty without any other config required.
EDIT 2
The issue is not present anymore in Spring Boot 2.x
EDIT 3
I'll deleted the repo mentioned earlier, but here is the dependency setup that caused the issue:
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>1.5.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<version>1.5.7.RELEASE</version>
<scope>test</scope>
</dependency>
<!-- Comment that in to start spring with jetty-->
<dependency>
<groupId>org.eclipse.jetty.websocket</groupId>
<artifactId>javax-websocket-server-impl</artifactId>
<version>9.4.8.v20171121</version>
</dependency>
</dependencies>
Normally, if you have the spring-boot-starter-tomcat on your classpath (through spring-boot-starter-web), it should always select Tomcat since it has priority over other servlet containers. Even if you have the following dependencies, Spring boot will start with Tomcat:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-server</artifactId>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-webapp</artifactId>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-servlet</artifactId>
</dependency>
You can programmatically override the chosen servlet container by registering your own ServletWebServerFactory, for example:
#Bean
public ServletWebServerFactory factory() {
return new TomcatServletWebServerFactory();
}
You can choose the predefined TomcatServletWebServerFactory, JettyServletWebServerFactory or the UndertowServletWebServerFactory.
This guide may help you: https://docs.spring.io/spring-boot/docs/current/reference/html/howto-embedded-web-servers.html
If you run an mvn dependency:tree and search for jetty you might find that you need to exclude it, e.g:
spring-boot-starter-jetty
excluded like in the example:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<!-- Exclude the Tomcat dependency -->
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- Use Jetty instead -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jetty</artifactId>
</dependency>
which is favouring jetty over tomcat - but you get the idea hopefully...
Hope this helps.