How to run Bolt app with Quarkus - remove quarkus-universe-bom

application.properties

quarkus.http.port=3000
quarkus.log.level=INFO
quarkus.log.category."com.slack.api".level=DEBUG

build.gradle

plugins {
    id 'java'
    id 'io.quarkus'
}

repositories {
    mavenLocal()
    mavenCentral()
}

dependencies {
    implementation 'io.quarkus:quarkus-undertow:1.3.2.Final'
    implementation 'com.slack.api:bolt-servlet:1.0.6'
}

group 'org.acme'
version '1.0.0-SNAPSHOT'

compileJava {
    options.encoding = 'UTF-8'
}

compileTestJava {
    options.encoding = 'UTF-8'
}

pom.xml

<?xml version="1.0"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"
         xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.acme</groupId>
    <artifactId>code-with-quarkus</artifactId>
    <version>1.0.0-SNAPSHOT</version>
    <properties>
        <compiler-plugin.version>3.8.1</compiler-plugin.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <quarkus-plugin.version>1.3.2.Final</quarkus-plugin.version>
        <quarkus.platform.version>1.3.2.Final</quarkus.platform.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>io.quarkus</groupId>
            <artifactId>quarkus-undertow</artifactId>
            <version>${quarkus.platform.version}</version>
        </dependency>
        <dependency>
            <groupId>com.slack.api</groupId>
            <artifactId>bolt-servlet</artifactId>
            <version>1.0.6</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>io.quarkus</groupId>
                <artifactId>quarkus-maven-plugin</artifactId>
                <version>${quarkus-plugin.version}</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>build</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>${compiler-plugin.version}</version>
            </plugin>
        </plugins>
    </build>
</project>

settings.gradle

pluginManagement {
    repositories {
        mavenLocal()
        mavenCentral()
        gradlePluginPortal()
    }
    plugins {
        id 'io.quarkus' version "1.3.2.Final"
    }
}
rootProject.name='code-with-quarkus'

SlackApp.java

package hello;

import com.slack.api.bolt.App;
import com.slack.api.bolt.servlet.SlackAppServlet;

import javax.servlet.annotation.WebServlet;
import java.io.IOException;

@WebServlet("/slack/events")
public class SlackApp extends SlackAppServlet {
    private static final long serialVersionUID = 1L;
    public SlackApp() throws IOException { super(initSlackApp()); }
    public SlackApp(App app) { super(app); }

    private static App initSlackApp() throws IOException {
        App app = new App();
        app.command("/hello", (req, ctx) -> {
            ctx.respond("respond also works");
            return ctx.ack("What's up?");
        });
        return app;
    }
}