040000 tree 56d479f04a4f53e5dcee7a37cdc4fd4184136260	java-lgpl
040000 tree 31dea9411169b70c3df96396b88b88801b321db4	java
040000 tree e8ebdf01195c0022600336943479ced3c8cd69a3	scala
040000 tree 09ced85f6cf439719bd24c584299259309bfc8b1	spark