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@jrichardsz
Created October 5, 2019 16:23
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Other JDK implementations, open jdk , java free versions

Source: https://www.baeldung.com/oracle-jdk-vs-openjdk

Free and Open Source

The following implementations, listed in alphabetical order, are open source and free to use:

AdoptOpenJDK
Amazon Corretto
Azul Zulu
Bck2Brwsr
CACAO
Codename One
DoppioJVM
Eclipse OpenJ9
GraalVM CE
HaikuVM
HotSpot
Jamiga
JamVM
Jelatine JVM
Jikes RVM (Jikes Research Virtual Machine)
JVM.go
leJOS
Maxine
Multi-OS Engine
RopeVM
uJVM

Proprietary Implementations

There are also copyrighted implementations:

Azul Zing JVM
CEE-J
Excelsior JET
GraalVM EE
Imsys AB
JamaicaVM (aicas)
JBlend (Aplix)
MicroJvm (IS2T – Industrial Smart Software Technology)
OJVM
PTC Perc
SAP JVM
Waratek CloudVM for Java
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