> We were in the early phases of forking the JVM
definitely made me go :-O - how big a company do you need to be for that to be a realistic thing to maintain in house?
definitely made me go :-O - how big a company do you need to be for that to be a realistic thing to maintain in house?
I've maintained in house forks of major code bases with a handful of minor code changes while we've tried to convince upstream to accept them.
There are 17 listed on SDKMAN's website: https://sdkman.io/jdks
> OpenJDK
As far as I know, all other distributions of the JDK are forks of OpenJDK. Would love to know if there's any that isn't.
https://www.ptc.com/en/products/developer-tools/perc
https://www.aicas.com/products-services/jamaicavm/
JikesRVM (https://www.jikesrvm.org) no longer active, but it was its own thing.
Then you have Azul Zing and OpenJ9, which use parts of OpenJDK for the standard library part, but the foundations are their own thing.
https://www.azul.com/products/prime/
https://developer.ibm.com/components/open-j9/
Then you have that mobile OS, which isn't really JVM compliant implementation, but it is close enough for many workloads and libraries to work on top of it.