How to build with maven ONLY tests?

Question

Java

I write tests on selenide, it's like selenium. The fact is that when I build a project using maven, a jar appears, and at startup it says no manifest. I have not copied this manifest anywhere (I know that idea had such a bug).
project structure:

and in each file my main class ( RunCucunberTest ) Cannot resolve.

And this is pom.xml just in case, what I commented out did not help

<?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>org.example</groupId>
    <artifactId>cucumber_project</artifactId>
    <version>1.0-SNAPSHOT</version>


    <dependencyManagement>
        <dependencies>

            <dependency>
                <groupId>io.cucumber</groupId>
                <artifactId>cucumber-bom</artifactId>
                <version>7.0.0</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.junit</groupId>
                <artifactId>junit-bom</artifactId>
                <version>5.8.1</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
    <dependencies>

        <!-- log4j -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>

        <!--        cucumber        -->

        <!-- https://mvnrepository.com/artifact/io.cucumber/cucumber-core -->
        <dependency>
            <groupId>io.cucumber</groupId>
            <artifactId>cucumber-core</artifactId>
            <version>7.0.0-RC1</version>
        </dependency>

        <dependency>
            <groupId>io.cucumber</groupId>
            <artifactId>cucumber-java</artifactId>
            <version>7.0.0-RC1</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>info.cukes</groupId>
            <artifactId>cucumber-junit</artifactId>
            <version>1.2.4</version>
        </dependency>

<!--        <dependency>-->
<!--            <groupId>io.cucumber</groupId>-->
<!--            <artifactId>cucumber-junit-platform-engine</artifactId>-->
<!--            <scope>test</scope>-->
<!--        </dependency>-->

<!--        junit       -->


        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>

        <dependency>
            <groupId>org.junit.platform</groupId>
            <artifactId>junit-platform-suite</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter</artifactId>
            <scope>test</scope>
        </dependency>

<!--        selenide        -->
        <dependency>
            <groupId>com.codeborne</groupId>
            <artifactId>selenide</artifactId>
            <version>5.25.0</version>
        </dependency>
    </dependencies>
    <build>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-surefire-plugin</artifactId>
                    <version>3.0.0-M5</version>
                    <configuration>
                        <includes>
                            <include>**/RunCucumberTest**.java</include>
                        </includes>
                    </configuration>
                </plugin>
                <plugin>
                    <artifactId>maven-assembly-plugin</artifactId>
                    <version>3.1.0</version>
                    <configuration>
                        <descriptorRefs>
                            <descriptorRef>jar-with-dependencies</descriptorRef>
                        </descriptorRefs>
                        <descriptors>
                            <descriptor>src/assembly/descriptor.xml</descriptor>
                        </descriptors>
<!---->
<!--                            <archive>-->
<!--                                <manifest>-->
<!--                                    <mainClass>-->
<!--                                        test.java.RunCucunberTest-->
<!--                                    </mainClass>-->
<!--                                </manifest>-->
<!--                            </archive>-->
<!---->
                    </configuration>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>
</project>

If you start the main class from the idea, then everything starts

Answer 1

First. what catches the eye <pluginManagement>. Your plugins inside this tag. This tag allows you to manage the specified plugins inside modules, but if you want them to be applied to the current project, then pull the plugins from this plugin.
In the configs of the maven-assembly-plugin plugin, write this and specify your class

<archive>
        <manifest>
          <mainClass>com.example.Main</mainClass>
        </manifest>
      </archive>

In general, if you want to customize fat jar, then it is better to use - maven shade plugin
https://stackoverflow.com/questions/16222748/build...