040000 tree 11a2455dd55841ddbcee6b47698a7aa2f82f6a65	collector
040000 tree b2c84b61bb7c2a3f3e2186b273a8ebeb979fa68b	debugger
040000 tree 22c451d5f284c17010ef7fe4029f7f4f555746d4	runtime
040000 tree 5070c289f61ed0f1991d972ffa8c58a2e99990e7	wtf