Java 1.1.8 with Mac OS Runtime for Java v 2.2.Java 1.0.2 with Mac OS Runtime for Java v 1.5.1 (starting with version 1.5, MRJ included a JIT compiler).As of Java 7, Apple has discontinued its own JRE, and Java support on OS X/macOS now comes directly from Oracle. 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. For a list of pointers to packages of the BSD Port for DragonFly BSD, FreeBSD, Mac OS X, NetBSD and OpenBSD, please see the BSD porting Projects wiki page. If you want to develop Java programs then install the java-1.6.0-openjdk-devel package. MRJ v2.2.5 was compatible with Sun's Java Development Kit version 1.1.8. The java-1.6.0-openjdk package contains just the Java Runtime Environment. The SDK includes ports of most of the tools from Sun's Java Development Kit (in the form of MPW tools and Macintosh applications), additional tools for packaging Java applications as double-clickable Macintosh applications, libraries for Macintosh-specific functionality, and documentation for the MRJ-specific classes and tools. A number of web browsers could use MRJ to run Java applets in web pages, including Microsoft Internet Explorer, iCab and HotJava. ![]() The runtime environment includes a JIT compiler developed by Symantec, the standard Java class library from Sun, additional classes providing Macintosh-specific functionality, and the Apple Applet Runner (a lightweight application for running Java applets without the overhead of a web browser). Both a runtime environment and a software development kit (SDK) are available. Mac OS Runtime for Java ( MRJ, originally Macintosh Runtime for Java) was Apple's proprietary virtual machine for Java-based applications in the classic Mac OS (i.e.
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