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More vendors are transitioning to an OpenJDK implementation.
- OpenJDK implementation matrix [2] and overview of JDK vendors [3]
- Difference between OracleJDK and OpenJDK [34]
[1] May 2018 https://blogs.oracle.com/java-platform-group/update-and-faq-on-the-java-se-release-cadence
[2] https://www.azul.com/products/zulu-enterprise/jdk-comparison-matrix/ written by Azul Systems and appears biased towards Azul Zulu JDK
[3] May 2019 https://dzone.com/articles/an-overview-on-jdk-vendors
[4] Oct 2019 https://wwwww w.baeldung.com/oracle-jdk-vs-openjdk
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