040000 tree 4f4c69efc245fc07101f1d46d5e238878c8c6c1e	common
100644 blob 8e3630da163f5e2cd4979e22a15c5ec8020f3086	pom.xml
100644 blob 13d1c47db6dff7ed0b225d4f98c485dc513fa345	scalastyle-config.xml
040000 tree 0563fd63323aea408bd556c81a4810d8709a9a95	spark-2.1
040000 tree 2adfad7d827a1fdd30bd351307f912984e85e778	spark-2.2
040000 tree c55f07d2ea90126a44a72d83c83fb8b376250ff8	spark-2.3