![]() ![]() $ /usr/libexec/java_home -v 8 -exec javac -version Installing the JDK on macOS To run a different version of Java, either specify the full path, or use the java_home tool. Java HotSpot(TM) 64-Bit Server VM (build 25.381-b07, mixed mode) Java(TM) SE Runtime Environment (build 1.8.0_381-b07) If the installed version is 20 Interim 0, Update 0, and Patch 0, then you see a string that includes the text 1-8. You can determine which version of the JDK is the default by entering java -version in a Terminal window. There can be multiple JDKs installed on the macOS system: When starting a Java application through the command line, the system uses the default JDK. Determining the Default JDK Version on macOS The file name of the installer is either jdk-1.8_macos- arch_bin.dmg or jdk-1.8_macos- arch_, where arch is 圆4 for macmacOS64 systems or aarch64 for macOS aarch64 (64-bit ARM) systems. For example, JDK 8u381 is installed in this directory. The JDK is installed in /Library/Java/JavaVirtualMachines/jdk-1.8.jdk regardless of the update version. Note: If you install an older version of a JDK when the newer version of the same feature family already exists, an error is displayed, prompting you to uninstall a newer JDK version if an older version has to be installed. If you attempt to install JDK 8u381 after JDK 8u371 is installed, the installer uninstalls JDK 8u371 and installs JDK 8u381. You can't install multiple versions of the same feature release.įor example, you can't install JDK 8u381 and JDK 8u371 simultaneously. JDK installers now support only one version of any Java feature release. JDK Installation Instruction Notation for macOS ![]() To install a lower version of the JRE, first uninstall the current version as described in "Uninstalling the JRE". The one exception is that the system will not replace the current JRE with a lower version. Note: Installing the JDK also installs the JRE. System Requirements for Installing the JDK on macOSįor supported processors and browsers, see Oracle JDK 8 and JRE 8 Certified System Configurations. Determining the Default JDK Version on macOS.JDK Installation Instruction Notation for macOS.System Requirements for Installing the JDK on macOS.This topic includes the following sections: (You can use Oracle's version free at home or for development only.The JDK supports both Intel-based (圆4) and Apple Silicon (AArch64) Mac The relevance of this is that the Oracle licensing terms mean you cannot use their copy without buying a license if this is for business purposes. ![]() You can get copies from Oracle's website or there is also a free compatible version from Adopt OpenJDK. However if the developer has hardcoded their app to require Java 6 you will be stuck. You could try installing a newer version of Java such as 8, 10, 11, or 13. (You can use Oracle's version free at home or for development only.) As such these will also not work in Catalina. Unfortunately some incredibly stupid developers persisted in writing their software to only work with this ancient Java 6 on a Mac. (The error message is misleading but the reality is it is not possible.)Īs mentioned the current version is arguably 13 but versions back to 8 are supported to varying degrees. As a result it is impossible to install and use it in macOS Catalina. ![]() The current version is Java 13.Īpple had for years and years been warning that this extremely old version was no longer going to be supported - Oracle stopped supporting it themselves years ago. Java 2017-001 actually corresponds to what is more commonly called Java 6 and is incredibly ancient. ![]()
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