Added a mvn initialize call to before install section

.travis.yml

@@ -4,7 +4,7 @@ jdk:
 sudo: false
 env:
   global:
-    - BUILD_CMD='mvn -Dskip.tests=true initialize clean install'
+    - BUILD_CMD='mvn -Dskip.tests=true clean install'
     - RUN_TESTS=false
 matrix:
   include:
@@ -19,6 +19,7 @@ before_install:
   - "export DISPLAY=:99.0"
   - "sh -e /etc/init.d/xvfb start"
   - "source install_dependencies.sh"
+  - "mvn -Dskip.tests=true initialize"
 install:
   - "$BUILD_CMD"
 script: