I have a java application that is deployed in cloud foundry, when I ran performance testing on this application, sometimes this application becomes unresponsive, and there are many errors in the log of application as below, I googled this error, it looks like go related issue, is it a bug of cloud foundry, the version of cf that I used is V249.

fatal error: systemstack called from unexpected goroutine
fatal error: systemstack called from unexpected goroutine
...
fatal error: systemstack called from unexpected goroutine
fatal error: systemstack called from unexpected goroutine