feat(deps): adopt flatten plugin and google-cloud-shared-dependencies (#259)

Author: yangnuoyu

.gitignore

@@ -40,3 +40,5 @@ api_key
 # Python utilities
 *.pyc
 artman-genfiles
+
+.flattened-pom.xml

google-cloud-pubsub/pom.xml

@@ -85,7 +85,6 @@
     <dependency>
       <groupId>com.google.auto.value</groupId>
       <artifactId>auto-value-annotations</artifactId>
-      <version>${autovalue.version}</version>
     </dependency>
     <dependency>
       <groupId>com.google.http-client</groupId>
@@ -163,11 +162,16 @@
             <path>
               <groupId>com.google.auto.value</groupId>
               <artifactId>auto-value</artifactId>
-              <version>${autovalue.version}</version>
+              <version>${auto-value-annotation.version}</version>
             </path>
           </annotationProcessorPaths>
         </configuration>
       </plugin>
+
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>flatten-maven-plugin</artifactId>
+      </plugin>
     </plugins>
   </build>
 
@@ -181,7 +185,6 @@
         <dependency>
           <groupId>javax.annotation</groupId>
           <artifactId>javax.annotation-api</artifactId>
-          <version>${javax.annotations.version}</version>
         </dependency>
       </dependencies>
     </profile>

grpc-google-cloud-pubsub-v1/pom.xml

@@ -53,4 +53,13 @@
       </dependencies>
     </profile>
   </profiles>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>flatten-maven-plugin</artifactId>
+      </plugin>
+    </plugins>
+  </build>
 </project>

pom.xml

@@ -63,10 +63,6 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <github.global.server>github</github.global.server>
     <site.installationModule>google-cloud-pubsub-parent</site.installationModule>
-    <easymock.version>4.2</easymock.version>
-    <javax.annotations.version>1.3.2</javax.annotations.version>
-    <errorprone.version>2.4.0</errorprone.version>
-    <autovalue.version>1.7.3</autovalue.version>
   </properties>
 
   <dependencyManagement>
@@ -95,15 +91,10 @@
         <version>1.107.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-pubsub:current} -->
       </dependency>
 
-      <dependency>
-        <groupId>javax.annotation</groupId>
-        <artifactId>javax.annotation-api</artifactId>
-        <version>${javax.annotations.version}</version>
-      </dependency>
       <dependency>
         <groupId>com.google.errorprone</groupId>
         <artifactId>error_prone_annotations</artifactId>
-        <version>${errorprone.version}</version>
+        <version>2.4.0</version>
       </dependency>
 
       <!-- Test dependencies -->
@@ -116,7 +107,7 @@
       <dependency>
         <groupId>org.easymock</groupId>
         <artifactId>easymock</artifactId>
-        <version>${easymock.version}</version>
+        <version>4.2</version>
         <scope>test</scope>
       </dependency>
       <dependency>

proto-google-cloud-pubsub-v1/pom.xml

@@ -30,4 +30,13 @@
       <artifactId>guava</artifactId>
     </dependency>
   </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>flatten-maven-plugin</artifactId>
+      </plugin>
+    </plugins>
+  </build>
 </project>