diff --git a/pom.xml b/pom.xml
index f0810c314fdf206a468a5a7bcf24aaec489452e9..3898e5d5a5f9d828cd28243b216cbdab071d8be4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -56,32 +56,113 @@
 		<skywalking.version>2.1-2017</skywalking.version>
 	</properties>
 
-	<dependencies>
-		<dependency>
-			<groupId>junit</groupId>
-			<artifactId>junit</artifactId>
-			<version>4.12</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.mockito</groupId>
-			<artifactId>mockito-all</artifactId>
-			<version>1.10.19</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.powermock</groupId>
-			<artifactId>powermock-module-junit4</artifactId>
-			<version>${powermock.version}</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.powermock</groupId>
-			<artifactId>powermock-api-mockito</artifactId>
-			<version>${powermock.version}</version>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-all</artifactId>
+            <version>1.10.19</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.powermock</groupId>
+            <artifactId>powermock-module-junit4</artifactId>
+            <version>${powermock.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.powermock</groupId>
+            <artifactId>powermock-api-mockito</artifactId>
+            <version>${powermock.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>${compiler.version}</source>
+                    <target>${compiler.version}</target>
+                    <encoding>${project.build.sourceEncoding}</encoding>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-resources-plugin</artifactId>
+                <version>2.4.3</version>
+                <configuration>
+                    <encoding>${project.build.sourceEncoding}</encoding>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>com.spotify</groupId>
+                <artifactId>docker-maven-plugin</artifactId>
+                <version>${docker.plugin.version}</version>
+                <configuration>
+                    <skipDocker>true</skipDocker>
+                </configuration>
+            </plugin>
+            <plugin>
+                <!-- 源码插件 -->
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-source-plugin</artifactId>
+                <!-- 发布时自动将源码同时发布的配置 -->
+                <executions>
+                    <execution>
+                        <id>attach-sources</id>
+                        <goals>
+                            <goal>jar</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <version>2.4</version>
+            </plugin>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>versions-maven-plugin</artifactId>
+                <version>2.3</version>
+            </plugin>
+            <plugin>
+                <groupId>org.eluder.coveralls</groupId>
+                <artifactId>coveralls-maven-plugin</artifactId>
+                <version>4.1.0</version>
+                <configuration>
+                    <repoToken>GGTAeHsfVql3x1BmTFaJvxC27f5sfcZNg</repoToken>
+                    <sourceDirectories>
+                        <sourceDirectory>${project.build.sourceDirectory}</sourceDirectory>
+                    </sourceDirectories>
+                </configuration>
+            </plugin>
+            <!-- 覆盖率 -->
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>cobertura-maven-plugin</artifactId>
+                <version>2.7</version>
+                <configuration>
+                    <check>true</check>
+                    <encoding>UTF-8</encoding>
+                    <aggregate>true</aggregate>
+                    <formats>
+                        <format>xml</format>
+                        <format>html</format>
+                    </formats>
+                    <instrumentation>
+                        <excludes>
+                            <exclude>com/a/eye/skywalking/trace/proto/*.class</exclude>
+                        </excludes>
+                    </instrumentation>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+>>>>>>> feature/3.0
 
 	<build>
 		<plugins>
diff --git a/skywalking-commons/skywalking-trace/pom.xml b/skywalking-commons/skywalking-trace/pom.xml
index 59ed8e442bd9c4718f086e8878bd1b9ef0cc86a3..b0a8b6e6e26fada51078f4f9dd3c2daf58b16e90 100644
--- a/skywalking-commons/skywalking-trace/pom.xml
+++ b/skywalking-commons/skywalking-trace/pom.xml
@@ -39,35 +39,15 @@
             </extension>
         </extensions>
         <plugins>
-            <plugin>
-                <groupId>org.codehaus.mojo</groupId>
-                <artifactId>build-helper-maven-plugin</artifactId>
-                <version>3.0.0</version>
-                <executions>
-                    <execution>
-                        <id>add-source</id>
-                        <phase>generate-sources</phase>
-                        <goals>
-                            <goal>add-source</goal>
-                        </goals>
-                        <configuration>
-                            <sources>
-                                <source>${basedir}/target/generated-sources/protobuf/java</source>
-                            </sources>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-
             <plugin>
                 <groupId>org.xolstice.maven.plugins</groupId>
                 <artifactId>protobuf-maven-plugin</artifactId>
                 <version>0.5.0</version>
                 <configuration>
-                    <protocArtifact>com.google.protobuf:protoc:3.1.0:exe:${os.detected.classifier}
+                    <protocArtifact>com.google.protobuf:protoc:3.0.0:exe:${os.detected.classifier}
                     </protocArtifact>
                     <pluginId>grpc-java</pluginId>
-                    <pluginArtifact>io.grpc:protoc-gen-grpc-java:1.1.2:exe:${os.detected.classifier}
+                    <pluginArtifact>io.grpc:protoc-gen-grpc-java:1.0.2:exe:${os.detected.classifier}
                     </pluginArtifact>
                 </configuration>
                 <executions>
@@ -79,8 +59,6 @@
                     </execution>
                 </executions>
             </plugin>
-
-
         </plugins>
     </build>
 </project>
diff --git a/skywalking-commons/skywalking-trace/src/main/java/com/a/eye/skywalking/trace/LogData.java b/skywalking-commons/skywalking-trace/src/main/java/com/a/eye/skywalking/trace/LogData.java
index 24e6a42ef68ac6d382afab8308df37357b98469e..da6c2c3b5fa3f6d5caa35742cf582ef014fed3f3 100644
--- a/skywalking-commons/skywalking-trace/src/main/java/com/a/eye/skywalking/trace/LogData.java
+++ b/skywalking-commons/skywalking-trace/src/main/java/com/a/eye/skywalking/trace/LogData.java
@@ -2,8 +2,8 @@ package com.a.eye.skywalking.trace;
 
 import com.a.eye.skywalking.api.util.StringUtil;
 import com.a.eye.skywalking.messages.ISerializable;
-import com.a.eye.skywalking.trace.messages.proto.KeyValue;
-import com.a.eye.skywalking.trace.messages.proto.LogDataMessage;
+import com.a.eye.skywalking.trace.proto.KeyValue;
+import com.a.eye.skywalking.trace.proto.LogDataMessage;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
@@ -14,7 +14,7 @@ import java.util.Map;
  *
  * Created by wusheng on 2017/2/17.
  */
-public class LogData implements ISerializable<LogDataMessage>{
+public class LogData implements ISerializable<LogDataMessage> {
     private long time;
     private Map<String, ?> fields;
 
diff --git a/skywalking-commons/skywalking-trace/src/main/java/com/a/eye/skywalking/trace/Span.java b/skywalking-commons/skywalking-trace/src/main/java/com/a/eye/skywalking/trace/Span.java
index 51f28adcee4de15395f029b78dcd45061c02502a..6e201749740f93ceaa5890731d455ba17288375e 100644
--- a/skywalking-commons/skywalking-trace/src/main/java/com/a/eye/skywalking/trace/Span.java
+++ b/skywalking-commons/skywalking-trace/src/main/java/com/a/eye/skywalking/trace/Span.java
@@ -2,9 +2,9 @@ package com.a.eye.skywalking.trace;
 
 import com.a.eye.skywalking.api.util.StringUtil;
 import com.a.eye.skywalking.messages.ISerializable;
-import com.a.eye.skywalking.trace.messages.proto.KeyValue;
-import com.a.eye.skywalking.trace.messages.proto.LogDataMessage;
-import com.a.eye.skywalking.trace.messages.proto.SpanMessage;
+import com.a.eye.skywalking.trace.proto.KeyValue;
+import com.a.eye.skywalking.trace.proto.LogDataMessage;
+import com.a.eye.skywalking.trace.proto.SpanMessage;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.util.ArrayList;
diff --git a/skywalking-commons/skywalking-trace/src/main/java/com/a/eye/skywalking/trace/TraceSegment.java b/skywalking-commons/skywalking-trace/src/main/java/com/a/eye/skywalking/trace/TraceSegment.java
index fde9e445f57bd7f2c6164019e36a6c3323e9bc62..c2453fa6ede61997e6be9366566012366b28bbc9 100644
--- a/skywalking-commons/skywalking-trace/src/main/java/com/a/eye/skywalking/trace/TraceSegment.java
+++ b/skywalking-commons/skywalking-trace/src/main/java/com/a/eye/skywalking/trace/TraceSegment.java
@@ -1,9 +1,9 @@
 package com.a.eye.skywalking.trace;
 
 import com.a.eye.skywalking.messages.ISerializable;
-import com.a.eye.skywalking.trace.messages.proto.SegmentMessage;
-import com.a.eye.skywalking.trace.messages.proto.SegmentRefMessage;
-import com.a.eye.skywalking.trace.messages.proto.SpanMessage;
+import com.a.eye.skywalking.trace.proto.SegmentMessage;
+import com.a.eye.skywalking.trace.proto.SegmentRefMessage;
+import com.a.eye.skywalking.trace.proto.SpanMessage;
 import java.util.Collections;
 import java.util.LinkedList;
 import java.util.List;
diff --git a/skywalking-commons/skywalking-trace/src/main/java/com/a/eye/skywalking/trace/TraceSegmentRef.java b/skywalking-commons/skywalking-trace/src/main/java/com/a/eye/skywalking/trace/TraceSegmentRef.java
index 098b54787dba269c19d1783c115bfdb3db9d9408..9cdcb2d0766c5602fc72b3813cf56af386c96fab 100644
--- a/skywalking-commons/skywalking-trace/src/main/java/com/a/eye/skywalking/trace/TraceSegmentRef.java
+++ b/skywalking-commons/skywalking-trace/src/main/java/com/a/eye/skywalking/trace/TraceSegmentRef.java
@@ -1,7 +1,7 @@
 package com.a.eye.skywalking.trace;
 
 import com.a.eye.skywalking.messages.ISerializable;
-import com.a.eye.skywalking.trace.messages.proto.SegmentRefMessage;
+import com.a.eye.skywalking.trace.proto.SegmentRefMessage;
 import com.a.eye.skywalking.trace.tag.Tags;
 
 /**
diff --git a/skywalking-commons/skywalking-trace/src/main/proto/trace.proto b/skywalking-commons/skywalking-trace/src/main/proto/trace.proto
index df53a6c2b2c8534da8d3642c0d6c31da302c2f9f..acf7ed6e18fc985b435fc9ce42e0eecdff468eec 100644
--- a/skywalking-commons/skywalking-trace/src/main/proto/trace.proto
+++ b/skywalking-commons/skywalking-trace/src/main/proto/trace.proto
@@ -1,7 +1,7 @@
 syntax = "proto3";
 
 option java_multiple_files = true;
-option java_package = "com.a.eye.skywalking.trace.messages.proto";
+option java_package = "com.a.eye.skywalking.trace.proto";
 
 message SegmentMessage {
     string traceSegmentId = 1;