Thorsten Maus contributed a Maven plugin to SpringSource (see Section A.2, “Documentation”) that builds a PAR file from a list of dependencies. In this step the Maven par plugin is added to properly build a PAR artifact type.

In the <build><plugins>…</plugins></build> section, add a plugin declaration for the par plugin.

<plugin>
	<groupId>org.apache.maven.plugins</groupId>
	<artifactId>maven-par-plugin</artifactId>
	<version>1.0.0.RELEASE</version>
	<configuration>
		<applicationSymbolicName>greenpages</applicationSymbolicName>
		<applicationDescription>GreenPages</applicationDescription>
	</configuration>
</plugin>

Declare the list of bundles to be packaged in the PAR as dependencies of the PAR project.

<dependency>
  <groupId>com.springsource.dmserver</groupId>
  <artifactId>greenpages.app</artifactId>
  <version>${project.version}</version>
</dependency>
<dependency>
  <groupId>com.springsource.dmserver</groupId>
  <artifactId>greenpages.jpa</artifactId>
  <version>${project.version}</version>
</dependency>
<dependency>
  <groupId>com.springsource.dmserver</groupId>
  <artifactId>greenpages.db</artifactId>
  <version>${project.version}</version>
</dependency>
<dependency>
  <groupId>com.springsource.dmserver</groupId>
  <artifactId>greenpages.web</artifactId>
  <version>${project.version}</version>
  <type>war</type>
</dependency>

Now, run the following command.

mvn clean package

This command will now complete successfully and build a PAR into target/:

			[INFO] Scanning for projects...
			[INFO] ------------------------------------------------------------------------
			[INFO] Building GreenPages PAR
			[INFO]    task-segment: [clean, package]
			[INFO] ------------------------------------------------------------------------
			[INFO] [clean:clean {execution: default-clean}]
			[INFO] [resources:resources {execution: default-resources}]
			[INFO] [par:par {execution: default-par}]
			[INFO] Assembling Artifacts for PAR '…/start/greenpages/target/greenpages-2.0.1.SNAPSHOT.par'
			[INFO]   Added 'greenpages.app.jar'
			[INFO]   Added 'greenpages.jpa.jar'
			[INFO]   Added 'greenpages.db.jar'
			[INFO]   Added 'greenpages.web.war'
			[INFO] [com.springsource.bundlor.:transform {execution: bundlor}]
			[INFO] Ignored project with non-bundle packaging: [par]
			[INFO] ------------------------------------------------------------------------
			[INFO] BUILD SUCCESSFUL
			[INFO] ------------------------------------------------------------------------

Proceed to the next step.