src/it/multirelease-patterns/packaging-plugin/pom.xml

<?xml version="1.0" encoding="UTF-8"?>
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  ~ or more contributor license agreements.  See the NOTICE file
  ~ distributed with this work for additional information
  ~ regarding copyright ownership.  The ASF licenses this file
  ~ to you under the Apache License, Version 2.0 (the
  ~ "License"); you may not use this file except in compliance
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  ~   http://www.apache.org/licenses/LICENSE-2.0
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  ~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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<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>multirelease</groupId>

  <artifactId>multirelease</artifactId>
  <version>1.0.0-SNAPSHOT</version>
  <packaging>multi-release-jar</packaging>

  <build>
    <pluginManagement>
      <plugins>
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.21.0</version>
          <configuration>
            <!-- this shows that the Java 9 code isn't tested -->
            <testFailureIgnore>true</testFailureIgnore>
          </configuration>
        </plugin>
      </plugins>
    </pluginManagement>
    <plugins>
      <plugin>
        <groupId>pw.krejci</groupId>
        <artifactId>multi-release-jar-maven-plugin</artifactId>
        <version>0.1.5</version>
        <extensions>true</extensions>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>
      <!-- Rerun unittests with the multirelease jar, cannot be done with exploded directory of classes  -->
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-failsafe-plugin</artifactId>
        <version>2.21.0</version>
        <executions>
          <execution>
            <goals>
              <goal>integration-test</goal>
              <goal>verify</goal>
            </goals>
          </execution>
        </executions>
        <configuration>
          <includes>
              <include>**/*Test.java</include>
          </includes>      
        </configuration>
      </plugin>
    </plugins>
  </build>

  <dependencies>
   <dependency>
     <groupId>junit</groupId>
     <artifactId>junit</artifactId>
     <version>4.12</version>
     <scope>test</scope>
   </dependency>
  </dependencies>
  <name>Packaging Plugin</name>
</project>