Bdtjtk

I've created a Spring Boot application using version 2.2.0.BUILD-SNAPSHOT with Java 11 (POM below):

 <?xml version="1.0" encoding="UTF-8"?>

 <project xmlns="http://maven.apache.org/POM/4.0.0" 

 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 

  http://maven.apache.org/xsd/maven-4.0.0.xsd">

<modelVersion>4.0.0</modelVersion>

<parent>

    <groupId>org.springframework.boot</groupId>

    <artifactId>spring-boot-starter-parent</artifactId>

    <version>2.2.0.BUILD-SNAPSHOT</version>

    <relativePath/> <!-- lookup parent from repository -->

</parent>

<groupId>com.mycompany</groupId>

<artifactId>Eureka-Service</artifactId>

<version>0.0.1-SNAPSHOT</version>

<name>Eureka-Service</name>

<description>Spring Boot Eureka Service</description>



<properties>

    <java.version>11</java.version>

    <spring-cloud.version>Greenwich.BUILD-SNAPSHOT</spring-cloud.version>

</properties>



<dependencies>

    <dependency>

        <groupId>org.springframework.boot</groupId>

        <artifactId>spring-boot-starter-actuator</artifactId>

    </dependency>

    <dependency>

        <groupId>org.springframework.cloud</groupId>

        <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>

    </dependency>

    <dependency>

        <groupId>org.springframework.boot</groupId>

        <artifactId>spring-boot-starter-test</artifactId>

        <scope>test</scope>

    </dependency>

    <dependency>

        <groupId>org.springframework.boot</groupId>

        <artifactId>spring-boot-starter-web</artifactId>

    </dependency>

    <dependency>

        <groupId>javax.xml.bind</groupId>

        <artifactId>jaxb-api</artifactId>

        <version>2.3.1</version>

    </dependency>

</dependencies>



<dependencyManagement>

    <dependencies>

        <dependency>

            <groupId>org.springframework.cloud</groupId>

            <artifactId>spring-cloud-dependencies</artifactId>

            <version>${spring-cloud.version}</version>

            <type>pom</type>

            <scope>import</scope>

        </dependency>

    </dependencies>

</dependencyManagement>



<build>

    <plugins>

        <plugin>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-maven-plugin</artifactId>

        </plugin>

    </plugins>

</build>



<repositories>

    <repository>

        <id>spring-snapshots</id>

        <name>Spring Snapshots</name>

        <url>https://repo.spring.io/snapshot</url>

        <snapshots>

            <enabled>true</enabled>

        </snapshots>

    </repository>

    <repository>

        <id>spring-milestones</id>

        <name>Spring Milestones</name>

        <url>https://repo.spring.io/milestone</url>

    </repository>

</repositories>

<pluginRepositories>

    <pluginRepository>

        <id>spring-snapshots</id>

        <name>Spring Snapshots</name>

        <url>https://repo.spring.io/snapshot</url>

        <snapshots>

            <enabled>true</enabled>

        </snapshots>

    </pluginRepository>

    <pluginRepository>

        <id>spring-milestones</id>

        <name>Spring Milestones</name>

        <url>https://repo.spring.io/milestone</url>

    </pluginRepository>

</pluginRepositories>

</project>

When the app starts up, it throws this exception:

2018-12-30 14:09:43.584 INFO 1305 --- [ main]
c.n.d.provider.DiscoveryJerseyProvider : Using XML encoding codec
XStreamXml
2018-12-30 14:09:43.584 INFO 1305 --- [ main]
c.n.d.provider.DiscoveryJerseyProvider : Using XML decoding codec
XStreamXml
2018-12-30 14:09:43.710 ERROR 1305 --- [ main] c.s.j.s.i.w.WadlApplicationContextImpl : Implementation of JAXB-API has not been found on module path or classpath.

javax.xml.bind.JAXBException: Implementation of JAXB-API has not been found on module path or classpath.
at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:177) ~[jaxb-api-2.3.1.jar:2.3.0]
at javax.xml.bind.ContextFinder.find(ContextFinder.java:364) ~[jaxb-api-2.3.1.jar:2.3.0]
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:508) ~[jaxb-api-2.3.1.jar:2.3.0]
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:465) ~[jaxb-api-2.3.1.jar:2.3.0]
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:366) ~[jaxb-api-2.3.1.jar:2.3.0]
at com.sun.jersey.server.impl.wadl.WadlApplicationContextImpl.(WadlApplicationContextImpl.java:107) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.server.impl.wadl.WadlFactory.init(WadlFactory.java:100) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.server.impl.application.RootResourceUriRules.initWadl(RootResourceUriRules.java:169) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.server.impl.application.RootResourceUriRules.(RootResourceUriRules.java:106) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.server.impl.application.WebApplicationImpl._initiate(WebApplicationImpl.java:1359) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.server.impl.application.WebApplicationImpl.access$700(WebApplicationImpl.java:180) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:799) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:795) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:193) ~[jersey-core-1.19.1.jar:1.19.1]
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:795) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:790) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:509) ~[jersey-servlet-1.19.1.jar:1.19.1]
at com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:339) ~[jersey-servlet-1.19.1.jar:1.19.1]
at com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:605) ~[jersey-servlet-1.19.1.jar:1.19.1]
at com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:207) ~[jersey-servlet-1.19.1.jar:1.19.1]
at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:394) ~[jersey-servlet-1.19.1.jar:1.19.1]
at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:744) ~[jersey-servlet-1.19.1.jar:1.19.1]
at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:270) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:106) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4511) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5157) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1382) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1372) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) ~[na:na]
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:907) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:831) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1382) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1372) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) ~[na:na]
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:907) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:423) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:933) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.startup.Tomcat.start(Tomcat.java:398) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:106) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.(TomcatWebServer.java:86) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:414) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:174) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:181) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:154) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:540) ~[spring-context-5.1.4.BUILD-SNAPSHOT.jar:5.1.4.BUILD-SNAPSHOT]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at com.orbis.EurekaServiceApplication.main(EurekaServiceApplication.java:13) ~[classes/:na]
Caused by: java.lang.ClassNotFoundException: com.sun.xml.internal.bind.v2.ContextFactory
at org.springframework.boot.web.embedded.tomcat.TomcatEmbeddedWebappClassLoader.loadClass(TomcatEmbeddedWebappClassLoader.java:70) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1173) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at javax.xml.bind.ServiceLoaderUtil.nullSafeLoadClass(ServiceLoaderUtil.java:122) ~[jaxb-api-2.3.1.jar:2.3.0]
at javax.xml.bind.ServiceLoaderUtil.safeLoadClass(ServiceLoaderUtil.java:155) ~[jaxb-api-2.3.1.jar:2.3.0]
at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:174) ~[jaxb-api-2.3.1.jar:2.3.0]
... 61 common frames omitted

2018-12-30 14:09:43.790 WARN 1305 --- [ main] o.s.c.n.a.ArchaiusAutoConfiguration : No spring.application.name found, defaulting to 'application'
2018-12-30 14:09:43.790 WARN 1305 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2018-12-30 14:09:43.791 INFO 1305 --- [ main] c.n.c.sources.URLConfigurationSource : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.
2018-12-30 14:09:43.922 INFO 1305 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2018-12-30 14:09:44.330 INFO 1305 --- [ main] o.s.c.n.eureka.InstanceInfoFactory : Setting initial instance status as: STARTING
2018-12-30 14:09:44.368 INFO 1305 --- [ main] com.netflix.discovery.DiscoveryClient : Initializing Eureka in region us-east-1
2018-12-30 14:09:44.368 INFO 1305 --- [ main] com.netflix.discovery.DiscoveryClient : Client configured to neither register nor query for data.
2018-12-30 14:09:44.378 INFO 1305 --- [ main] com.netflix.discovery.DiscoveryClient : Discovery Client initialized at timestamp 1546178984375 with initial instances count: 0
2018-12-30 14:09:44.405 INFO 1305 --- [ main] c.n.eureka.DefaultEurekaServerContext : Initializing ...
2018-12-30 14:09:44.406 INFO 1305 --- [ main] c.n.eureka.cluster.PeerEurekaNodes : Adding new peer nodes [http://localhost:8761/eureka/]
2018-12-30 14:09:44.583 INFO 1305 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON encoding codec LegacyJacksonJson
2018-12-30 14:09:44.584 INFO 1305 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON decoding codec LegacyJacksonJson
2018-12-30 14:09:44.584 INFO 1305 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML encoding codec XStreamXml
2018-12-30 14:09:44.584 INFO 1305 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML decoding codec XStreamXml
2018-12-30 14:09:44.668 INFO 1305 --- [ main] c.n.eureka.cluster.PeerEurekaNodes : Replica node URL: http://localhost:8761/eureka/
2018-12-30 14:09:44.675 INFO 1305 --- [ main] c.n.e.registry.AbstractInstanceRegistry : Finished initializing remote region registries. All known remote regions:
2018-12-30 14:09:44.675 INFO 1305 --- [ main] c.n.eureka.DefaultEurekaServerContext : Initialized
2018-12-30 14:09:44.682 INFO 1305 --- [ main] o.s.b.a.e.web.EndpointLinksResolver : Exposing 2 endpoint(s) beneath base path '/actuator'
2018-12-30 14:09:44.741 INFO 1305 --- [ main] o.s.c.n.e.s.EurekaServiceRegistry : Registering application UNKNOWN with eureka with status UP
2018-12-30 14:09:44.744 INFO 1305 --- [ Thread-12] o.s.c.n.e.server.EurekaServerBootstrap : Setting the eureka configuration..
2018-12-30 14:09:44.745 INFO 1305 --- [ Thread-12] o.s.c.n.e.server.EurekaServerBootstrap : Eureka data center value eureka.datacenter is not set, defaulting to default
2018-12-30 14:09:44.745 INFO 1305 --- [ Thread-12] o.s.c.n.e.server.EurekaServerBootstrap : Eureka environment value eureka.environment is not set, defaulting to test
2018-12-30 14:09:44.754 INFO 1305 --- [ Thread-12] o.s.c.n.e.server.EurekaServerBootstrap : isAws returned false
2018-12-30 14:09:44.755 INFO 1305 --- [ Thread-12] o.s.c.n.e.server.EurekaServerBootstrap : Initialized server context
2018-12-30 14:09:44.755 INFO 1305 --- [ Thread-12] c.n.e.r.PeerAwareInstanceRegistryImpl : Got 1 instances from neighboring DS node
2018-12-30 14:09:44.755 INFO 1305 --- [ Thread-12] c.n.e.r.PeerAwareInstanceRegistryImpl : Renew threshold is: 1
2018-12-30 14:09:44.755 INFO 1305 --- [ Thread-12] c.n.e.r.PeerAwareInstanceRegistryImpl : Changing status to UP
2018-12-30 14:09:44.761 INFO 1305 --- [ Thread-12] e.s.EurekaServerInitializerConfiguration : Started Eureka Server
2018-12-30 14:09:44.775 INFO 1305 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8761 (http) with context path ''
2018-12-30 14:09:44.775 INFO 1305 --- [ main] .s.c.n.e.s.EurekaAutoServiceRegistration : Updating port to 8761
2018-12-30 14:09:44.777 INFO 1305 --- [ main] com.orbis.EurekaServiceApplication : Started EurekaServiceApplication in 4.097 seconds (JVM running for 5.186)
2018-12-30 14:10:44.762 INFO 1305 --- [a-EvictionTimer] c.n.e.registry.AbstractInstanceRegistry : Running the evict task with compensationTime 0msaa

However, when i remove the following dependency:

<dependency>

        <groupId>javax.xml.bind</groupId>

        <artifactId>jaxb-api</artifactId>

        <version>2.3.1</version>

    </dependency>

the application fails to start up:

Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat

at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:125) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]

at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:86) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]

at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:414) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]

at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:174) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:181) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:154) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]

... 8 common frames omitted

Caused by: java.lang.IllegalStateException: StandardEngine[Tomcat].StandardHost[localhost].TomcatEmbeddedContext failed to start

at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.rethrowDeferredStartupExceptions(TomcatWebServer.java:171) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]

at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:109) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]

... 13 common frames omitted

Starting from Java 9 the JAXB implementation has been removed. So what you have added is only the API and you need to add the implementation also. There might be several alternatives.

As a fix you could add - for example, as there are other implementations also I guess - this dependency:

<dependency>

    <groupId>org.eclipse.persistence</groupId>

    <artifactId>org.eclipse.persistence.moxy</artifactId>

    <version>2.7.3</version>

</dependency>

Here is an excellent explanation about this.

Why it has been removed (excerpt from above link):

Java’s standard library isn’t exactly small and lightweight. In the course of the past 20+ years, many features have been added to it, mostly because at the time it was thought that it would be a good idea if Java supported a particular technology out-of-the-box.

One of these was support for XML-based web services. When Java SE 6 was released in December 2006, XML-based web services were popular, so the developers of the Java language thought it would be a good idea if Java would have support for calling web services as a standard feature. It was decided to add the necessary APIs, that were originally developed as part of Java EE, to Java SE. Among these were JAX-WS (Java API for XML-Based Web Services) and JAXB.

With today’s trend towards microservices, it’s important that the Java runtime environment is small and lightweight, so having a large runtime library with built-in support for every possible technology isn’t as advantageous anymore.

Therefore, a proposal was made in JEP-320 to remove the Java EE and CORBA modules from the JDK.