You can check the paths of the versions installed using /usr/libexec/java_home -V, see How do I check if the Java JDK is installed on Mac? I think this is the cleanest & simplest way to go about it.Īnother important thing to note, as mentioned in Mac OS X 10.6.7 Java Path Current JDK confusing :įor different types of JDKs or installations, you will have different Then you can install the version(s) you like: brew install -cask java7Īnd add them to be managed by jenv as usual. Then you can look at all the versions available: brew search java

repeat steps 4 to 6 for each version of java you needĪdd the homebrew/cask-versions tap to homebrew using: brew tap homebrew/cask-versions.

check the version is correctly managed by jenv.

install a specific java version using cask (see 'homebrew-cask versions' paragraph below).

jenv to manage the installed versions of javaĪs seen on, these are the steps to follow.

homebrew-cask to install the versions of java.

Java 1.1.8 with Mac OS Runtime for Java v 2.2.The cleanest way to manage multiple java versions on Mac is to use Homebrew.

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.

MRJ v2.2.5 was compatible with Sun's Java Development Kit version 1.1.8. 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.

Java 8 mac os x