Mavenfile to use warbler to create the war file and replaces the maven artifact with that. the pom.xml is equivalent to the Mavenfile which got genreated by ruby-maven/tesla.

Mavenfile

packaging :war

phase :package do
  plugin 'de.saumya.mojo:jruby-maven-plugin', '1.0.0-rc3' do
    execute_goal( :jruby, 
                  :id => 'pack-war with warbler', 
                  :filename => 'warble',
                  :gemUseSystem => true )
    execute_goal( :jruby, 
                  :id => 'move war to maven build dir', 
                  :script => <<EOS

require 'fileutils'
FileUtils.mv '${project.artifactId}.war', '${project.build.directory}/${project.build.finalName}.war'

EOS
                  )
  end
end

# the maven-war-plugin will fail since maven specific files are not there
plugin :war, :failOnMissingWebXml => false

# tesla or ruby-maven will dump an equivalent pom.xml
properties( 'tesla.dump.pom' => 'pom.xml' )
# vim: syntax=Ruby

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <modelVersion>4.0.0</modelVersion>
  <groupId>dummy</groupId>
  <artifactId>dhammapada</artifactId>
  <version>0.0.0</version>
  <packaging>war</packaging>
  <name>dhammapada</name>
  <properties>
    <tesla.dump.pom>pom.xml</tesla.dump.pom>
  </properties>
  <build>
    <plugins>
      <plugin>
        <groupId>de.saumya.mojo</groupId>
        <artifactId>jruby-maven-plugin</artifactId>
        <version>1.0.0-rc3</version>
        <executions>
          <execution>
            <id>pack-war</id>
            <phase>package</phase>
            <goals>
              <goal>jruby</goal>
            </goals>
            <configuration>
              <filename>warble</filename>
              <gemUseSystem>true</gemUseSystem>
            </configuration>
          </execution>
          <execution>
            <id>move to build dir</id>
            <phase>package</phase>
            <goals>
              <goal>jruby</goal>
            </goals>
            <configuration>
              <script>
require 'fileutils'
FileUtils.mv '${project.artifactId}.war', '${project.build.directory}/${project.build.finalName}.war'

</script>
            </configuration>
          </execution>
        </executions>
      </plugin>
      <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <configuration>
          <failOnMissingWebXml>false</failOnMissingWebXml>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>