fix warnings

.travis.yml

@@ -28,6 +28,7 @@ before_deploy:
   - cp -fa $WEBWOLF_TARGET_DIR/*.jar $WEBGOAT_ARTIFACTS_FOLDER/
   - echo "Contents of artifacts folder:"
   - ls $WEBGOAT_ARTIFACTS_FOLDER
+  - if [ "$TRAVIS_OS_NAME" = "osx" ]; then exit 1 ; else exit 0 ; fi
 deploy:
   - provider: script
     cleanup: false