Adding OSGi metadata to existing projects without changing the packaging type

http://felix.apache.org/site/apache-felix-maven-bundle-plugin-bnd.html

 

Adding OSGi metadata to existing projects without changing the packaging type

If you want to keep your project packaging type (for example "jar") but would like to add OSGi metadata
you can use the manifest goal to generate a bundle manifest. The maven-jar-plugin can then be used to
add this manifest to the final artifact. For example:

<plugin>
  <artifactId>maven-jar-plugin</artifactId>
  <configuration>
    <archive>  
      <manifestFile>${project.build.outputDirectory}/META-INF/MANIFEST.MF</manifestFile>
    </archive> 
  </configuration>
</plugin>  
<plugin>   
  <groupId>org.apache.felix</groupId>
  <artifactId>maven-bundle-plugin</artifactId>
  <executions>
    <execution>
      <id>bundle-manifest</id>
      <phase>process-classes</phase>
      <goals>    
        <goal>manifest</goal>
      </goals>   
    </execution>
  </executions>
</plugin>

If you want to use packaging types other than "jar" and "bundle" then you also need to enable support
for them in the bundleplugin configuration, for example if you want to use the plugin with WAR files:

<plugin>
  <groupId>org.apache.felix</groupId>
  <artifactId>maven-bundle-plugin</artifactId>
  <executions>
    <execution>
      <id>bundle-manifest</id>
      <phase>process-classes</phase>
      <goals>
        <goal>manifest</goal>
      </goals>
    </execution>
  </executions>
  <configuration>
    <supportedProjectTypes>
      <supportedProjectType>jar</supportedProjectType>
      <supportedProjectType>bundle</supportedProjectType>
      <supportedProjectType>war</supportedProjectType>
    </supportedProjectTypes>
    <instructions>
      <!-- ...etc... -->
    </instructions>
  </configuration>
</plugin>