Using Springboot Mapping (RequestMapping, PathVariable, etc) on spring-boot-starter-jersey project with JAX-RS Mapping (#Path, #GET, etc) - spring

Question

I'm adding a new set of features to a micro-service which I originally developed in Jersey (years ago) and later ported to springboot-jersey (a few less years ago).
Since then I got used to other frameworks and languages, so I want to:
1- Use Kotlin
2- Springboot's Web Annotations to perform the rest endpoints' mapping while maintaining support for JAX-RS' mapping annotations
The Kotlin part itself was "easy-peasy", all I needed was to add the kotlin runtime dependencies to the project's 'pom.xml' and create Kotlin classes.
However, when I created a simple endpoint using Springboot's mappings it didn't worked (HTTP call to the endpoint returns a HTTP 404 Status Code):
import org.springframework.web.bind.annotation.GetMapping
import org.springframework.web.bind.annotation.RequestMapping
import org.springframework.web.bind.annotation.RestController
#RestController
#RequestMapping("/springboot/test")
class UnitController {
#GetMapping
fun getUnit() : String = "Test"
}
However if I use the JAX-RS mapping it works fine (HTTP call to the endpoint returns a HTTP 200 Status Code and the "Test" message):
import javax.ws.rs.GET
import javax.ws.rs.Path
#Path("/jersey/test")
class UnitController {
#GET
fun getUnit() : String = "Test"
}
Here's the project's pom.xml (the part that matter to the issue anyway):
<?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>
<groupId>foo</groupId>
<artifactId>bar</artifactId>
<version>1</version>
<packaging>jar</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<jersey.version>2.28</jersey.version>
<kotlin.version>1.3.72</kotlin.version>
<springboot.version>2.2.7.RELEASE</springboot.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<version>${kotlin.version}</version>
<executions>
<execution>
<id>compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>test-compile</id>
<phase>test-compile</phase>
<goals>
<goal>test-compile</goal>
</goals>
</execution>
</executions>
<configuration>
<jvmTarget>1.8</jvmTarget>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<executions>
<execution>
<id>compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>testCompile</id>
<phase>test-compile</phase>
<goals>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey</groupId>
<artifactId>jersey-bom</artifactId>
<version>${jersey.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.7.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey.inject</groupId>
<artifactId>jersey-hk2</artifactId>
<version>${jersey.version}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet</artifactId>
<version>${jersey.version}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-multipart</artifactId>
<version>${jersey.version}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.bundles</groupId>
<artifactId>jaxrs-ri</artifactId>
<version>${jersey.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jersey</artifactId>
<version>${springboot.version}</version>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jetty</artifactId>
<version>${springboot.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-json</artifactId>
<version>${springboot.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<version>${springboot.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib-jdk8</artifactId>
<version>${kotlin.version}</version>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-test</artifactId>
<version>${kotlin.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
I've researched for some time and didn't found anything related to this matter.
Is my "hybrid" Springboot and JAX-RS mapping annotation approach even possible?
I'd most thankful if someone could please clarify this out for me...
EDIT:
I've forgot to mention that the 'UnitController' is registered under the JerseyConfig:
import org.glassfish.jersey.server.ResourceConfig;
import org.springframework.stereotype.Component;
#Component
public class JerseyConfig extends ResourceConfig {
public JerseyConfig() {
register(UnitController.class);
}
}