040000 tree 8c2819e4a2cecc690f3a101c445207fffce73605	commonTo2.1And2.2
040000 tree deaa2e0063aa4ac235b265b554a5c814dd2f2edf	commonTo2.2And2.3
040000 tree 79490199f61d58da5d2faa0145de142dbcd50fa1	java
040000 tree 5b77cd714136bdb6f92c1dd0ffbff5263f44c1d2	scala
040000 tree 565238b036aaf6a8053a074010065f8e4811c8b4	spark2.1
040000 tree b7c430af90d02ddb8d99fc1838faa93c1771d5d3	spark2.2
040000 tree b865d5d4f79dec527482b93c2a401e97f6731e96	spark2.3