Further details may exist on the talk page. Please expand the section to include this information. This section is missing information about presence of installer providing system integration (Windows registry, Mac framework, Linux MIME).

Unlike past JDK Release Projects, which produced just one feature release and then terminated, this long-running project will produce all future JDK feature releases and will ship a feature release every six months according to a strict, time-based model. Since JDK 10, the effort to produce an open-source reference implementation of the Java SE Platform was moved over to the JDK Project. OpenJDK was initially based only on the JDK 7 version of the Java platform.

The experimental -XX:+EnableJVMCIProduct flag enables the use of Graal JIT (JEP 317). OpenJDK 9+ supports AOT compilation ( jaotc) using GraalVM (JEP 295). The only currently available free plugin and Web Start implementations as of 2016 are those provided by IcedTea. Sun previously indicated that they would try to open-source these components, but neither Sun nor Oracle have done so. The web-browser plugin and Web Start, which form part of Oracle Java, are not included in OpenJDK. The OpenJDK project produces a number of components: most importantly the virtual machine ( HotSpot), the Java Class Library and the Java compiler ( javac).

OpenJDK is the official reference implementation of Java SE since version 7. Were it not for the GPL linking exception, components that linked to the Java Class Library would be subject to the terms of the GPL license. The implementation is licensed under the GPL-2.0-only with a linking exception. It is the result of an effort Sun Microsystems began in 2006. OpenJDK ( Open Java Development Kit) is a free and open-source implementation of the Java Platform, Standard Edition (Java SE). The table below lists packages that are comprised in each profile.Linux, FreeBSD, macOS, Microsoft Windows, OpenIndiana several other ports in progress Each profile specifies a particular set of Java API packages and contains all of the APIs in profiles smaller than itself: compact1 is a subset of compact2, which is a subset of compact3, which in its turn is a subset of the full JRE. Three profiles that have been defined so far are named compact1, compact2, and compact3.

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