New release of Java Miner w/ prebuilds for Windows:

https://github.com/ProgrammerDan/arionum-java/releases/tag/0.2.3

I strongly recommend updating. Testing users saw 25-50% increase in hashing speeds. In some rare cases, 100% increase. This will vary from system configuration to configuration. Tested ~24 hours on my test systems (i7 7700k, Atom 2.4Ghz) with many successful share submissions.

Current benchmark changes:

Linux Mint 18.3, i7-7700k: 11.25h/s ---> 14.25h/s

Windows 10 Pro, i7 6600U: ~2.5H/s --> 6H/s