coverage

  <profiles>
    <profile>
      <id>travis</id>
      <activation>
        <property>
          <name>env.TRAVIS</name>
          <value>true</value>
        </property>
      </activation>
      <build>
        <plugins>
          <plugin>
            <groupId>org.jacoco</groupId>
            <artifactId>jacoco-maven-plugin</artifactId>
            <version>${maven.jacoco.version}</version>
          </plugin>
          <plugin>
            <groupId>org.eluder.coveralls</groupId>
            <artifactId>coveralls-maven-plugin</artifactId>
            <version>2.2.0</version>
          </plugin>
        </plugins>
      </build>
    </profile>
  </profiles>