After updating to MacOS 10.13.5, the library eventually hangs the system.

How to reproduce:

1. Run the provided sample application in this library "ant run" v2.1.0 and let it run for a few hours. The system eventually starts to crawl and mouse pointer hangs, windows hangs.
2. If the sample application is killed, everything goes back to normal.

To get the same effect (so you can observe and reproduce the issue more quickly), run v2.0.3 sample application and the issue appears in minutes.

Any ideas on the issue @kwhat ?
Thanks!