Allow diff tool to run in-jvm multiple times, and resolve some conflicting shading
drwxr-xr-x - .github
-rw-r--r-- 11609 LICENSE.txt
-rw-r--r-- 5450 README.md
drwxr-xr-x - api-server
drwxr-xr-x - common
-rw-r--r-- 4512 pom.xml
drwxr-xr-x - spark-job
drwxr-xr-x - spark-uberjar