Step 4 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-4-plugin-management.xml

...
	<build>
	<pluginManagement>
		<plugins>
			<plugin>
				<groupId>org.mule.tools.maven</groupId>
				<artifactId>mule-app-maven-plugin</artifactId>
				<version>${mule.tools.version}</version>
				<extensions>true</extensions>
				<configuration>
					<copyToAppsDirectory>true</copyToAppsDirectory>
				</configuration>
			</plugin>
			<plugin>
				<groupId>org.codehaus.mojo</groupId>
				<artifactId>build-helper-maven-plugin</artifactId>
				<version>${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>
		</plugins>
		</pluginManagement>
	</build>
  ...