updated maven pom for Java8

gson/pom.xml

@@ -85,6 +85,23 @@
         </plugins>
       </build>
     </profile>
+    <profile>
+      <id>doclint-java8-disable</id>
+      <activation>
+        <jdk>[1.8,</jdk>
+      </activation>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-javadoc-plugin</artifactId>
+            <configuration>
+              <additionalparam>-Xdoclint:none</additionalparam>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
   </profiles>
   <build>
     <defaultGoal>package</defaultGoal>
@@ -132,7 +149,7 @@
        <!-- TODO(inder): add manifest entry for maven group, artifact, and classifier ids -->
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-source-plugin</artifactId>
-         <version>2.2.1</version>
+         <version>2.3</version>
          <executions>
            <execution>
              <id>attach-sources</id>
@@ -202,7 +219,7 @@
       </plugin>
       <plugin>
         <artifactId>maven-assembly-plugin</artifactId>
-        <version>2.4</version>
+        <version>2.4.1</version>
         <configuration>
           <descriptor>assembly-descriptor.xml</descriptor>
           <finalName>google-gson-${project.version}</finalName>