It may be. I'm using it for development, mostly Ant-based builds, and I
experience regular problems which seem to pertain to forks. Then the java
process seems to hang with 98% CPU usage. It's not reproducible, but it
seems to happen more and more on my system. Actually I'm thinking about
switching back to jdk13 until jdk14 is a bit more reliable.
I use it daily at work (on 5.1-CURRENT), and run Ant hundreds if not
thousands of time per day with no trouble at all. YMMV...