Comment by grishka
OpenJDK is the "default" implementation of Java and it's maintained by Oracle. Beyond that, there exists at least OpenJ9, which is a completely independent implementation, maintained by Eclipse Foundation.
OpenJDK is the "default" implementation of Java and it's maintained by Oracle. Beyond that, there exists at least OpenJ9, which is a completely independent implementation, maintained by Eclipse Foundation.
Isn't OpenJ9 "just" the VM and not the class library? Also it's IBM-backed so it's more a case of pick your poison there.