pom.xml

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>demo</groupId>
  <artifactId>junit5-surefire-failsafe-demo</artifactId>
  <packaging>jar</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>junit5-surefire-failsafe-demo</name>

  <properties>
    <!-- see : https://maven.apache.org/general.html#encoding-warning  -->
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version.source>11</java.version.source>
    <java.version.target>11</java.version.target>
    <java.compiler.debug>true</java.compiler.debug>

    <junit5.version>5.4.2</junit5.version>
  </properties>

  <dependencies>

    <dependency>
      <groupId>org.junit.jupiter</groupId>
      <artifactId>junit-jupiter-api</artifactId>
      <version>${junit5.version}</version>
      <scope>test</scope>
    </dependency>

    <dependency>
      <groupId>org.junit.jupiter</groupId>
      <artifactId>junit-jupiter-engine</artifactId>
      <version>${junit5.version}</version>
      <scope>test</scope>
    </dependency>

  </dependencies>

  <build>
    <plugins>

      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.8.1</version>
        <configuration>
          <source>${java.version.source}</source>
          <target>${java.version.target}</target>
          <encoding>${project.build.sourceEncoding}</encoding>
          <debug>${java.compiler.debug}</debug>
        </configuration>
      </plugin>

      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-surefire-plugin</artifactId>
        <version>3.0.0-M3</version>
        <configuration>
          <!--
          see: https://junit.org/junit5/docs/current/user-guide/#writing-tests-tagging-and-filtering
          see: https://junit.org/junit5/docs/current/user-guide/#running-tests-tag-expressions
          see: https://junit.org/junit5/docs/current/user-guide/#running-tests-build-maven-filter-tags
          see: https://maven.apache.org/surefire/maven-surefire-plugin/test-mojo.html 

          run all test cases except @Tag("tag2") tagged test cases.
          -->
          <excludedGroups>tag2</excludedGroups>
        </configuration>
      </plugin>

      <!--
      see: https://maven.apache.org/surefire/maven-failsafe-plugin/usage.html
      see: https://maven.apache.org/surefire/maven-failsafe-plugin/examples/junit-platform.html
      -->
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-failsafe-plugin</artifactId>
        <version>3.0.0-M3</version>
        <configuration>
          <includes>
            <!--
            default target filename pattern, see: http://maven.apache.org/surefire/maven-failsafe-plugin/integration-test-mojo.html#includes
            -->
            <include>**/IT*.java</include>
            <include>**/*IT.java</include>
            <include>**/*ITCase.java</include>

            <!--
            add target filename pattern to run "TestDemo2.java" in maven-failsafe-plugin
            see: http://maven.apache.org/surefire/maven-failsafe-plugin/examples/junit-platform.html
            -->
            <include>**/Test*.java</include>
          </includes>

          <!-- only run @Tag("tag2") test cases -->
          <groups>tag2</groups>

        </configuration>
        <executions>
          <execution>
            <goals>
              <goal>integration-test</goal>
            </goals>
          </execution>
        </executions>
      </plugin>

    </plugins>
  </build>
</project>