Integrate travis-ci with coveralls

.travis.yml

@@ -3,3 +3,10 @@ jdk:
   - oraclejdk8
   - oraclejdk7
   - openjdk7
+
+script:
+  - travis_retry mvn --batch-mode clean apache-rat:check
+  - travis_wait 60 mvn --batch-mode clean package findbugs:check
+
+after_success:
+  - mvn clean cobertura:cobertura coveralls:report

README.md

-## RocketMQ [![Build Status](https://travis-ci.org/apache/incubator-rocketmq.svg?branch=master)](https://travis-ci.org/apache/incubator-rocketmq)
+## RocketMQ [![Build Status](https://travis-ci.org/apache/incubator-rocketmq.svg?branch=master)](https://travis-ci.org/apache/incubator-rocketmq) [![Coverage Status](https://coveralls.io/repos/github/apache/incubator-rocketmq/badge.svg?branch=master)](https://coveralls.io/github/apache/incubator-rocketmq?branch=master)
 [![Maven Central](https://img.shields.io/badge/maven--center-stable--version-green.svg)](http://search.maven.org/#search%7Cga%7C1%7Corg.apache.rocketmq)
 [![GitHub release](https://img.shields.io/badge/release-download-orange.svg)](https://github.org/apache/rocketmqreleases)
 [![License](https://img.shields.io/badge/license-Apache%202-4EB1BA.svg)](https://www.apache.org/licenses/LICENSE-2.0.html)

pom.xml

@@ -322,6 +322,21 @@
                 <artifactId>coveralls-maven-plugin</artifactId>
                 <version>4.3.0</version>
             </plugin>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>cobertura-maven-plugin</artifactId>
+                <version>2.7</version>
+                <configuration>
+                    <format>xml</format>
+                    <!-- aggregated reports for multi-module projects -->
+                    <aggregate>true</aggregate>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>findbugs-maven-plugin</artifactId>
+                <version>3.0.4</version>
+            </plugin>
         </plugins>
     </build>