Download from the Maven repository.

Changelog for TomP2P 4.1.1-preview

* TCP options set in try-catch to suppress warning if an option could not be set
* suppress "connection reset by peer" in Windows
* expose to user
* fixed CacheMap and ConcurrentCacheMap
* improved bootstrapping, which includes connecting to random peers
* fixed tracker replication
* added more examples

Please note that there are still open issues with storing more than 8MB on disk. There is an other issue with too many open files in system which is under investigation.