<plugin>
				<groupId>org.jruby.plugins</groupId>
				<artifactId>jruby-rake-plugin</artifactId>
				<version>1.4.0</version>
				<executions>
					<execution>
						<id>install gems</id>
						<phase>generate-resources</phase>
						<goals>
							<goal>gem</goal>
						</goals>
						<configuration>
							<args>install ${gem.options} ${required.gems}
								${testing.required.gems}</args>
							<launchDirectory>${basedir}/src/main/webapp/WEB-INF/gems/
							</launchDirectory>
						</configuration>
					</execution>
				</executions>
			</plugin>