040000 tree 724514bc5b87c57f6ae58d19604e35f6d7bc15d6	debian8_clang
040000 tree e577d22f9167d90947196fb9030d61352d03183e	experimental
040000 tree 247c49b8ef0957e67e09002e0bc7ae48a5c3b9fe	java
040000 tree 2af214a34121484a98e80fd62f68d5644c3b5448	ubuntu16_04_clang