Step 1 of 5 refactorings described in: https://www.hybrit.org/blog-mulesoft-parent-pom-in-5-steps/ a blog about creating a parent POM.xml for Mulesoft projects

blog-1-step-1-change-system-api-pom.xml

    <!-- properties section -->
...
    <properties>
	    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
	    <mule.version>3.9.0</mule.version>
    	<mule.tools.version>1.2</mule.tools.version>
    	
    	<build-helper-maven-plugin.version>1.7</build-helper-maven-plugin.version>
    	<mule-module-mongo.version>3.6.1</mule-module-mongo.version>
    	<order-management.version>1.0.0-SNAPSHOT</order-management.version>
    </properties>
...
    <!-- dependencies -->
...
        <dependency>
            <groupId>org.mule.modules</groupId>
            <artifactId>mule-module-mongo</artifactId>
            <version>${mule-module-mongo.version}</version>
        </dependency>
        <dependency>
            <groupId>org.hybrit</groupId>
            <artifactId>order-management</artifactId>
            <version>${order-management.version}</version>
            <scope>test</scope>
            <type>zip</type>
        </dependency>
...
    <!-- plugins -->
...
    <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>build-helper-maven-plugin</artifactId>
        <version>${build-helper-maven-plugin.version}</version>
        <executions>
            <execution>
                <id>add-resource</id>
                <phase>generate-resources</phase>
                <goals>
                    <goal>add-resource</goal>
                </goals>
                <configuration>
                    <resources>
                        <resource>
                            <directory>src/main/app/</directory>
                        </resource>
                        <resource>
                            <directory>src/main/api/</directory>
                        </resource>
                        <resource>
                            <directory>mappings/</directory>
                        </resource>
                    </resources>
                </configuration>
            </execution>
        </executions>
    </plugin>
...