Artifacts using concurrent-trees version 2.6.0
4. CQEngine38 usages
com.googlecode.cqengine » cqengineApache
Collection Query Engine: NoSQL indexing and query engine for Java collections with ultra-low latency
Last Release on Jan 16, 2021
9. QWAZR Database6 usages
com.qwazr » qwazr-databaseApache
Database Engine for QWAZR
Last Release on Oct 1, 2020