Problems/404 with Hello World using Jersey 3 and Tomcat 10

Question

Trying to do a Hello World with Jersey and Tomcat 10 using IntelliJ as IDE. Unfortunately, I'll get a 404 - it seems the servlet is not loaded. Reading several tutorials, I can't find the reason. Also I'm getting a weird error message in my web.xml...

pom.xml

<dependency>
    <groupId>org.glassfish.jersey.containers</groupId>
    <artifactId>jersey-container-servlet</artifactId>
    <version>3.0.1</version>
</dependency>
<dependency>
    <groupId>org.glassfish.jersey.core</groupId>
    <artifactId>jersey-server</artifactId>
    <version>3.0.1</version>
</dependency>
<dependency>
    <groupId>javax</groupId>
    <artifactId>javaee-api</artifactId>
    <version>8.0.1</version>
    <scope>provided</scope>
</dependency>
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.1.0</version>
</dependency>

web.xml (xml-file is mandatory, I can't use the ApplicationConfig-class)

    <servlet>
        <servlet-name>Jersey REST Service</servlet-name>
        <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
        <init-param>
            <param-name>jersey.config.server.provider.packages</param-name>
            <param-value>com.myapp.hello</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>Jersey REST Service</servlet-name>
        <url-pattern>/api/*</url-pattern>
    </servlet-mapping>

Also, here I'm getting this error message on the servlet-class line: 'org.glassfish.jersey.servlet.ServletContainer' is not assignable to 'javax.servlet.Servlet,jakarta.servlet.Servlet' I only found the https://youtrack.jetbrains.com/issue/IDEA-86833 issue, but it seems to be resolved.

Controller/Endpoint

package com.myapp.hello;
@Path("/hello")
public class DataController  {

    @GET
    @Produces(MediaType.TEXT_PLAIN)
    public String sayPlainTextHello() {
        return "Hello Jersey Plain";
    }
}

This should deploy the servlet and make it accessable under through a GET request with the following url: http://localhost:8080/app/api/hello - but getting a 404 instead...

What am I doing wrong here? Code seems fine, I don't see anything in the server logs.

Thanks for any inputs!