How to compile a maven project?

mvn clean install -s settings.xml

How to compile in parallel threads?

mvn -T {number_of_threads} clean install

How to generate a runnable JAR?

Add this to your pom.xml file

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            <version>3.1.0</version>
            <configuration>
                <archive>
                    <manifest>
                        <addClasspath>true</addClasspath>
                        <mainClass>{your_class_full_name}</mainClass>
                    </manifest>
                </archive>
            </configuration>
        </plugin>
    </plugins>
</build>

How to generate one JAR including all dependencies?

In the pom.xml file:

<build>
    <plugins>
        <plugin>
            <artifactId>maven-assembly-plugin</artifactId>
            <executions>
                <execution>
                    <id>make-assembly</id> 
                    <phase>package</phase>
                    <goals>
                        <goal>single</goal>
                    </goals>
                    <configuration>
                        <archive>
                            <manifest>
                                <mainClass>{your_class_full_name}</mainClass>
                            </manifest>
                        </archive>
                        <descriptorRefs>
                            <descriptorRef>jar-with-dependencies</descriptorRef>
                        </descriptorRefs>
                        <finalName>{output_jar_name}</finalName>
                        <appendAssemblyId>false</appendAssemblyId>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

How to exclude tests from the compilation process?

mvn clean install -DskipTests -Dmaven.test.skip=true -Dmaven.test.skip.exec

How to run a main method from the command line?

mvn compile exec:java -D"exec.mainClass"="{your_class_full_name}"