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040000 tree 6a100b49624ee960d7bf823ab0409b09accfc049	database
040000 tree 868499a1a7c488cbd08f33d65776f8f80e532e7e	messaging
040000 tree eaf73a2d0a6a573f8b91281db9a4d845f10161bc	network
040000 tree 09fb635ded2360733ac83bfaf323097ef9af52b6	nosql
040000 tree 9cb4e4aa435c7dd13ffac8c1756c26d358f3fdb3	osgi
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