Updated pom.xml & travis.yml to use JDK8
diff --git a/.travis.yml b/.travis.yml
index 5434a80..551c724 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,7 +13,7 @@
 # limitations under the License.
 language: java
 jdk:
-  - oraclejdk7
+  - oraclejdk8
 script: mvn verify
 notifications:
   irc:
diff --git a/pom.xml b/pom.xml
index 5a20a28..1a034c5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -73,8 +73,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.1</version>
         <configuration>
-          <source>1.7</source>
-          <target>1.7</target>
+          <source>1.8</source>
+          <target>1.8</target>
           <optimize>true</optimize>
           <encoding>UTF-8</encoding>
         </configuration>