switch to Java 8

Change-Id: Iaf2b47ce7cfad7fcd5b57c8ec79e0d3e6e66ca73
diff --git a/tools/package/bin/onos-service b/tools/package/bin/onos-service
index 9250d5b..ae6d970 100755
--- a/tools/package/bin/onos-service
+++ b/tools/package/bin/onos-service
@@ -3,7 +3,7 @@
 # Starts ONOS Apache Karaf container
 # -----------------------------------------------------------------------------
 
-export JAVA_HOME=${JAVA_HOME:-/usr/lib/jvm/java-7-openjdk-amd64/}
+#export JAVA_HOME=${JAVA_HOME:-/usr/lib/jvm/java-7-openjdk-amd64/}
 export JAVA_OPTS="${JAVA_OPTS:--Xms256M -Xmx2048M}"
 
 cd /opt/onos