sonar/main/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>
    <parent>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi-parent</artifactId>
        <version>5.0.1-SNAPSHOT</version>
    </parent>
    <artifactId>poi-main</artifactId>
    <packaging>jar</packaging>

    <name>Apache POI Main package</name>

    <build>
        <plugins>
            <!-- copy sources, resources and tests in place as otherwise Sonar does not pick them up correctly! -->
            <plugin>
                <artifactId>maven-resources-plugin</artifactId>
                <version>${maven.plugin.resources.version}</version>
                <executions>
                    <execution>
                        <id>copy-sources</id>
                        <phase>generate-sources</phase>
                        <goals>
                            <goal>copy-resources</goal>
                        </goals>
                        <configuration>
                            <outputDirectory>${basedir}/src/main/java</outputDirectory>
                            <resources>
                                <resource>
                                    <directory>../../src/java</directory>
                                </resource>
                            </resources>
                        </configuration>
                    </execution>
                    <execution>
                        <id>copy-resources</id>
                        <phase>generate-resources</phase>
                        <goals>
                            <goal>copy-resources</goal>
                        </goals>
                        <configuration>
                            <outputDirectory>${basedir}/src/main/resources</outputDirectory>
                            <resources>
                                <resource>
                                    <directory>../../src/resources/main</directory>
                                </resource>
                            </resources>
                        </configuration>
                    </execution>
                    <execution>
                        <id>copy-tests</id>
                        <!-- here the phase you need -->
                        <phase>generate-test-sources</phase>
                        <goals>
                            <goal>copy-resources</goal>
                        </goals>
                        <configuration>
                            <outputDirectory>${basedir}/src/test/java</outputDirectory>
                            <resources>
                                <resource>
                                    <directory>../../src/testcases</directory>
                                </resource>
                                <resource>
                                    <directory>../../src/resources/test</directory>
                                </resource>
                            </resources>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

            <!-- clean copied sources afterwards -->
            <plugin>
                <artifactId>maven-clean-plugin</artifactId>
                <version>${maven.plugin.clean.version}</version>
                <configuration>
                    <filesets>
                        <fileset>
                            <directory>src</directory>
                            <followSymlinks>false</followSymlinks>
                        </fileset>
                    </filesets>
                </configuration>
            </plugin>

            <!-- provide the test-jar for other modules -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>${maven.plugin.jar.version}</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>test-jar</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

    <dependencies>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-api</artifactId>
            <version>2.14.0</version>
        </dependency>
        <dependency>
            <groupId>commons-codec</groupId>
            <artifactId>commons-codec</artifactId>
            <version>1.15</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-collections4</artifactId>
            <version>4.4</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-math3</artifactId>
            <version>3.6.1</version>
        </dependency>
        <dependency>
            <groupId>com.zaxxer</groupId>
            <artifactId>SparseBitSet</artifactId>
            <version>1.2</version>
        </dependency>
    </dependencies>
</project>