The above javac command threw the same exception as I mentioned in the original issue, even tried on Java 14 to see if it was some bug in an earlier version. Edit: However, if I comment out any ...

Minimal reproduction example for java.lang.StackOverflowError in lambda runtime - KomootArchive/lambda-stackoverflow-reproduction ...

It is significant that StackOverflowError ends with the word Error and is an Error (extends java.lang.Error via java.lang.VirtualMachineError) rather than a checked or runtime Exception.