Java was created at Sun Microsystems by James Gosling’s team and released in 1996. Its bytecode ran on any platform with a Java Virtual Machine. It became the dominant language for enterprise applications and later the original language of Android. Sun open-sourced it as OpenJDK in 2006, and Oracle took over when it bought Sun in 2010.
Since Java 10 (2018), a new version arrives every six months. Long-term support releases now come every two years: 17, 21, 25. Many vendors build OpenJDK, including Eclipse Temurin, Amazon Corretto, Azul and Microsoft, and their support dates differ. The table on this page shows Oracle JDK dates.
