eclipse - java.lang.IllegalArgumentException: Unsupported class file major version 58

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I have included TomEE with Eclipse in order to start developing dynamic web projects (I am still new to it).

Before adding the project to the TomEE server, I am able to start it without any problem.

But when I add the project to the server and try to run it I get the error: java.lang.IllegalArgumentException: Unsupported class file major version 58

What I tried to do in order to solve it:

Changing the server port number

Deleting and recreating the server

Checking the


    web.xml

file to make sure the servlet mapping is fine

Reconfiguring the project's target runtime

Reconfiguring the runtime environments of eclipse

Versions:

TomEE: v8.0.3 plume

JDK: 15.0.1

Eclipse: 4.17.0

Code of the test project

TestServlet.java

package my.test.project;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class TestServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/plain");
        PrintWriter out = response.getWriter();
        out.println("Hello this is a test");
        out.close();
Web.xml
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
    version="3.1">
    <servlet>
        <servlet-name>TestServlet</servlet-name>
        <servlet-class>my.test.project.TestServlet</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>TestServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>
Error in console log after executing
Nov 06, 2020 1:06:18 PM jdk.internal.reflect.NativeMethodAccessorImpl invoke
SEVERE: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/TestProject]]
    at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
    at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:841)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:421)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:633)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:343)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:474)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/TestProject]]
    at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909)
    ... 21 more
Caused by: org.apache.tomee.catalina.TomEERuntimeException: org.apache.openejb.OpenEJBException: Unable to create annotation scanner for web module TestProject: Unable to read class definition for my.test.project.TestServlet
    at org.apache.tomee.catalina.TomcatWebAppBuilder.loadApplication(TomcatWebAppBuilder.java:2363)
    at org.apache.tomee.catalina.TomcatWebAppBuilder.startInternal(TomcatWebAppBuilder.java:1198)
    at org.apache.tomee.catalina.TomcatWebAppBuilder.configureStart(TomcatWebAppBuilder.java:1131)
    at org.apache.tomee.catalina.GlobalListenerSupport.lifecycleEvent(GlobalListenerSupport.java:134)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5052)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    ... 27 more
Caused by: org.apache.openejb.OpenEJBException: Unable to create annotation scanner for web module TestProject: Unable to read class definition for my.test.project.TestServlet
    at org.apache.openejb.config.DeploymentLoader.addWebModule(DeploymentLoader.java:886)
    at org.apache.openejb.config.DeploymentLoader.load(DeploymentLoader.java:233)
    at org.apache.tomee.catalina.TomcatWebAppBuilder.loadApplication(TomcatWebAppBuilder.java:2361)
    ... 33 more
Caused by: java.lang.RuntimeException: Unable to read class definition for my.test.project.TestServlet
    at org.apache.xbean.finder.AnnotationFinder.readClassDef(AnnotationFinder.java:1180)
    at org.apache.xbean.finder.AnnotationFinder.<init>(AnnotationFinder.java:153)
    at org.apache.xbean.finder.AnnotationFinder.<init>(AnnotationFinder.java:166)
    at org.apache.openejb.config.FinderFactory$OpenEJBAnnotationFinder.<init>(FinderFactory.java:546)
    at org.apache.openejb.config.FinderFactory.newFinder(FinderFactory.java:267)
    at org.apache.openejb.config.FinderFactory.create(FinderFactory.java:80)
    at org.apache.openejb.config.FinderFactory.createFinder(FinderFactory.java:69)
    at org.apache.openejb.config.DeploymentLoader.addWebModule(DeploymentLoader.java:878)
    ... 35 more
Caused by: java.lang.IllegalArgumentException: Unsupported class file major version 58
    at org.apache.xbean.asm7.ClassReader.<init>(ClassReader.java:195)
    at org.apache.xbean.asm7.ClassReader.<init>(ClassReader.java:176)
    at org.apache.xbean.asm7.ClassReader.<init>(ClassReader.java:162)
    at org.apache.xbean.asm7.ClassReader.<init>(ClassReader.java:283)
    at org.apache.xbean.finder.AnnotationFinder.readClassDef(AnnotationFinder.java:1176)
    ... 42 more
Nov 06, 2020 1:06:18 PM jdk.internal.reflect.NativeMethodAccessorImpl invoke
SEVERE: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: A child container failed during start
    at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
    at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:421)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:633)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:343)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:474)
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:928)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:841)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909)
    ... 13 more
Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/TestProject]]
    at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
    at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916)
    ... 21 more
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/TestProject]]
    at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909)
    ... 21 more
Caused by: org.apache.tomee.catalina.TomEERuntimeException: org.apache.openejb.OpenEJBException: Unable to create annotation scanner for web module TestProject: Unable to read class definition for my.test.project.TestServlet
    at org.apache.tomee.catalina.TomcatWebAppBuilder.loadApplication(TomcatWebAppBuilder.java:2363)
    at org.apache.tomee.catalina.TomcatWebAppBuilder.startInternal(TomcatWebAppBuilder.java:1198)
    at org.apache.tomee.catalina.TomcatWebAppBuilder.configureStart(TomcatWebAppBuilder.java:1131)
    at org.apache.tomee.catalina.GlobalListenerSupport.lifecycleEvent(GlobalListenerSupport.java:134)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5052)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    ... 27 more
Caused by: org.apache.openejb.OpenEJBException: Unable to create annotation scanner for web module TestProject: Unable to read class definition for my.test.project.TestServlet
    at org.apache.openejb.config.DeploymentLoader.addWebModule(DeploymentLoader.java:886)
    at org.apache.openejb.config.DeploymentLoader.load(DeploymentLoader.java:233)
    at org.apache.tomee.catalina.TomcatWebAppBuilder.loadApplication(TomcatWebAppBuilder.java:2361)
    ... 33 more
Caused by: java.lang.RuntimeException: Unable to read class definition for my.test.project.TestServlet
    at org.apache.xbean.finder.AnnotationFinder.readClassDef(AnnotationFinder.java:1180)
    at org.apache.xbean.finder.AnnotationFinder.<init>(AnnotationFinder.java:153)
    at org.apache.xbean.finder.AnnotationFinder.<init>(AnnotationFinder.java:166)
    at org.apache.openejb.config.FinderFactory$OpenEJBAnnotationFinder.<init>(FinderFactory.java:546)
    at org.apache.openejb.config.FinderFactory.newFinder(FinderFactory.java:267)
    at org.apache.openejb.config.FinderFactory.create(FinderFactory.java:80)
    at org.apache.openejb.config.FinderFactory.createFinder(FinderFactory.java:69)
    at org.apache.openejb.config.DeploymentLoader.addWebModule(DeploymentLoader.java:878)
    ... 35 more
Caused by: java.lang.IllegalArgumentException: Unsupported class file major version 58
    at org.apache.xbean.asm7.ClassReader.<init>(ClassReader.java:195)
    at org.apache.xbean.asm7.ClassReader.<init>(ClassReader.java:176)
    at org.apache.xbean.asm7.ClassReader.<init>(ClassReader.java:162)
    at org.apache.xbean.asm7.ClassReader.<init>(ClassReader.java:283)
    at org.apache.xbean.finder.AnnotationFinder.readClassDef(AnnotationFinder.java:1176)
    ... 42 more
Nov 06, 2020 1:06:18 PM jdk.internal.reflect.NativeMethodAccessorImpl invoke
SEVERE: The required Server component failed to start so Tomcat is unable to start.
org.apache.catalina.LifecycleException: A child container failed during start
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:928)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:421)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:633)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:343)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:474)
Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: A child container failed during start
    at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
    at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916)
    ... 13 more
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:928)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:841)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909)
    ... 13 more
Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/TestProject]]
    at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
    at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916)
    ... 21 more
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/TestProject]]
    at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909)
    ... 21 more
Caused by: org.apache.tomee.catalina.TomEERuntimeException: org.apache.openejb.OpenEJBException: Unable to create annotation scanner for web module TestProject: Unable to read class definition for my.test.project.TestServlet
    at org.apache.tomee.catalina.TomcatWebAppBuilder.loadApplication(TomcatWebAppBuilder.java:2363)
    at org.apache.tomee.catalina.TomcatWebAppBuilder.startInternal(TomcatWebAppBuilder.java:1198)
    at org.apache.tomee.catalina.TomcatWebAppBuilder.configureStart(TomcatWebAppBuilder.java:1131)
    at org.apache.tomee.catalina.GlobalListenerSupport.lifecycleEvent(GlobalListenerSupport.java:134)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5052)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    ... 27 more
Caused by: org.apache.openejb.OpenEJBException: Unable to create annotation scanner for web module TestProject: Unable to read class definition for my.test.project.TestServlet
    at org.apache.openejb.config.DeploymentLoader.addWebModule(DeploymentLoader.java:886)
    at org.apache.openejb.config.DeploymentLoader.load(DeploymentLoader.java:233)
    at org.apache.tomee.catalina.TomcatWebAppBuilder.loadApplication(TomcatWebAppBuilder.java:2361)
    ... 33 more
Caused by: java.lang.RuntimeException: Unable to read class definition for my.test.project.TestServlet
    at org.apache.xbean.finder.AnnotationFinder.readClassDef(AnnotationFinder.java:1180)
    at org.apache.xbean.finder.AnnotationFinder.<init>(AnnotationFinder.java:153)
    at org.apache.xbean.finder.AnnotationFinder.<init>(AnnotationFinder.java:166)
    at org.apache.openejb.config.FinderFactory$OpenEJBAnnotationFinder.<init>(FinderFactory.java:546)
    at org.apache.openejb.config.FinderFactory.newFinder(FinderFactory.java:267)
    at org.apache.openejb.config.FinderFactory.create(FinderFactory.java:80)
    at org.apache.openejb.config.FinderFactory.createFinder(FinderFactory.java:69)
    at org.apache.openejb.config.DeploymentLoader.addWebModule(DeploymentLoader.java:878)
    ... 35 more
Caused by: java.lang.IllegalArgumentException: Unsupported class file major version 58
    at org.apache.xbean.asm7.ClassReader.<init>(ClassReader.java:195)
    at org.apache.xbean.asm7.ClassReader.<init>(ClassReader.java:176)
    at org.apache.xbean.asm7.ClassReader.<init>(ClassReader.java:162)
    at org.apache.xbean.asm7.ClassReader.<init>(ClassReader.java:283)
    at org.apache.xbean.finder.AnnotationFinder.readClassDef(AnnotationFinder.java:1176)
    ... 42 more
Nov 06, 2020 1:06:18 PM jdk.internal.reflect.DelegatingMethodAccessorImpl invoke
INFO: Pausing ProtocolHandler ["http-nio-8080"]
Nov 06, 2020 1:06:18 PM jdk.internal.reflect.DelegatingMethodAccessorImpl invoke
INFO: Stopping service [Catalina]
Nov 06, 2020 1:06:18 PM org.apache.openejb.server.SimpleServiceManager stop
INFO: Stopping server services
Nov 06, 2020 1:06:18 PM jdk.internal.reflect.DelegatingMethodAccessorImpl invoke
INFO: Destroying ProtocolHandler ["http-nio-8080"]
Project Facets
The help would be very much appreciated as I've been at it for quite some time but can't seem to figure out what the problem is.
Thank you.
                The error indicates the different Java versions used (probably by your build tool / Eclipse / TomEE).
– Dmitriy Popov
                Nov 6, 2020 at 12:36
                You are trying to run code compiled for Java 14 (class file version 58) on an older version of Java
– greg-449
                Nov 6, 2020 at 13:30
                Does this answer your question? How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version
– 9ilsdx 9rvj 0lo
                Jun 7, 2021 at 11:18
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