create feature

pom.xml

<plugin>
                <groupId>org.apache.karaf.tooling</groupId>
                <artifactId>features-maven-plugin</artifactId>
                <version>2.3.7</version>
                <executions>
                    <execution>
                        <id>generate</id>
                        <phase>generate-resources</phase>
                        <goals>
                            <goal>generate-features-xml</goal>
                        </goals>
                        <configuration>
                            <!--<bundles>src/main/resources/bundles.properties</bundles>-->
                            <kernelVersion>2.2.11</kernelVersion>
                            <outputFile>target/features.xml</outputFile>
                        </configuration>
                    </execution>
                    <execution>
                      <id>create-kar</id>
                      <phase>generate-resources</phase>
                      <goals>
                        <goal>create-kar</goal>
                      </goals>
                      <configuration>
                        <featuresFile>src/main/resources/gremlin-feature.xml</featuresFile>
                      </configuration>
                    </execution>
                </executions>
               <dependencies>
                   <dependency>
                       <groupId>org.apache.maven.wagon</groupId>
                       <artifactId>wagon-http-lightweight</artifactId>
                       <version>2.6</version>
                   </dependency>
               </dependencies>
            </plugin>