change version to 2.0.1 & add flatten plugin

pom.xml

@@ -23,7 +23,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.source>1.6</maven.compiler.source>
         <maven.compiler.target>1.6</maven.compiler.target>
-        <metrics.version>2.0.0</metrics.version>
+        <metrics.version>2.0.1</metrics.version>
         <jersey.version>2.27</jersey.version>
         <fastjson.version>1.2.48</fastjson.version>
         <!-- be careful that higher version might not support JDK6 -->
@@ -373,6 +373,31 @@
                 <artifactId>maven-surefire-plugin</artifactId>
                 <version>2.19.1</version>
             </plugin>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>flatten-maven-plugin</artifactId>
+                <version>1.1.0</version>
+                <configuration>
+                    <updatePomFile>true</updatePomFile>
+                    <flattenMode>resolveCiFriendliesOnly</flattenMode>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>flatten</id>
+                        <phase>process-resources</phase>
+                        <goals>
+                            <goal>flatten</goal>
+                        </goals>
+                    </execution>
+                    <execution>
+                        <id>flatten.clean</id>
+                        <phase>clean</phase>
+                        <goals>
+                            <goal>clean</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
             <plugin>
                 <artifactId>maven-resources-plugin</artifactId>
                 <version>3.0.2</version>