Updated JDK version to match caliper's
diff --git a/metrics/pom.xml b/metrics/pom.xml
index 3e90ffe..7d68c68 100644
--- a/metrics/pom.xml
+++ b/metrics/pom.xml
@@ -60,8 +60,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.3.2</version>
         <configuration>
-          <source>1.5</source>
-          <target>1.5</target>
+          <source>1.6</source>
+          <target>1.6</target>
         </configuration>
       </plugin>
       <plugin>