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MRJ v2.2.5 was compatible with Sun's Java Development Kit version 1.1.8. [1] Since the transition to Mac OS X, Apple has discontinued MRJ and instead maintains and distributes a port of Oracle's HotSpot Java virtual machine. [2] As of Java 7, Apple has discontinued its own JRE, and Java support on OS X/macOS now comes directly from Oracle.
The Java language has undergone several changes since JDK 1.0 as well as numerous additions of classes and packages to the standard library.Since J2SE 1.4, the evolution of the Java language has been governed by the Java Community Process (JCP), which uses Java Specification Requests (JSRs) to propose and specify additions and changes to the Java platform.
OpenJDK (Open Java Development Kit) is a free and open-source implementation of the Java Platform, Standard Edition (Java SE). [2] It is the result of an effort Sun Microsystems began in 2006, four years before the company was acquired by Oracle Corporation .
The Java Development Kit (JDK) is a distribution of Java technology by Oracle Corporation. It implements the Java Language Specification ( JLS ) and the Java Virtual Machine Specification ( JVMS ) and provides the Standard Edition ( SE ) of the Java Application Programming Interface ( API ).
Eclipse OpenJ9 – open-source from IBM J9, for AIX, Linux (x86, Power, and Z), macOS, Windows, MVS, OS/400, Pocket PC, z/OS. GraalVM – is based on HotSpot/OpenJDK, it has a polyglot feature, to transparently mix and match supported languages. HotSpot – the open-source Java VM implementation by Oracle.
Support for Java 8 was added in April 2014 and Mac OS X support was added in June 2014. [17] In September 2014, Zulu was extended to support Docker. [18] Zulu Embedded, which allows developers to customize the build footprint, was released in March, 2015. [19] Azul produces the jHiccup open-source performance measurement tool for Java applications.
GraalVM for JDK 22.0.1 [4] 16 April 2024; 9 months ago () Free GPL version 2 only HotSpot, OpenJDK edition Sun Microsystems, Oracle: 27 April 1999 jdk-16 16 March 2021 Free GPL version 2 only HotSpot, Oracle JDK edition Sun Microsystems, Oracle: 27 April 1999 jdk 16 16 March 2021 Free Proprietary: HotSpot, Java SE embedded edition
Free Java implementations are software projects that implement Oracle's Java technologies and are distributed under free software licences, making them free software. Sun released most of its Java source code as free software in May 2007, so it can now almost be considered a free Java implementation. [ 1 ]