040000 tree 8c2819e4a2cecc690f3a101c445207fffce73605	commonTo2.1And2.2
040000 tree a00eda50796b532e74e4556ed4261c1ff21c7d4b	commonTo2.2And2.3
040000 tree a467be66bcc52ff03f96e157177fcb48d008c6f9	java
040000 tree 0eacd77ecffeecee3cf079c60ebb2fc48d306094	scala
040000 tree 01575bee54ed1402a47625154e3690259987f284	spark2.1
040000 tree b7c430af90d02ddb8d99fc1838faa93c1771d5d3	spark2.2
040000 tree b865d5d4f79dec527482b93c2a401e97f6731e96	spark2.3