040000 tree 9babfce2c58782917c8815589f5f92d291705702	debian8_clang
040000 tree a5a4cb4d58a5e530f3e6796c0700c6140fb4e50d	experimental
040000 tree 247c49b8ef0957e67e09002e0bc7ae48a5c3b9fe	java
040000 tree ed82b4c8f8bdd8c2302ee2eba575181f6d04cc26	ubuntu16_04_clang