Java is one of the most confusing and frustrating add-ons for Mac and here we show you the easiest way to uninstall Java from El Capitan, Sierra and High Sierra. The truth is, there’s actually no way to fully remove Java from Mac but you can easily completely disable it. The implementations of Java 8, 9, 10, and 11 based on OpenJDK from vendors such as Azul Systems, Oracle, and AdoptOpenJDK run on macOS High Sierra and Mojave (and some older macOS as well). Java 12, not yet released for production, runs on High Sierra as well. Oracle strongly suggests to now use the term JDK to refer to the Java SE Development Kit. The Java EE SDK is available with or without the JDK, by which they specifically mean the Java SE 7 JDK. Follow below steps to install JDK on Mac OS High Sierra 10: Step 1: Open your browser. Step 2: go to Oracle JDK Download URL. Step 3: Click on Download. Jul 25, 2018 How to set JAVAHOME in Mac OS X High Sierra Enterprise Development, Liferay 3 Replies This post describes how to configure the JAVAHOME environment variable required by many enterprise tools, frameworks, and CMSes. $ java -version java version '10.0.2.1-ea' Java(TM) SE Runtime Environment (build 10.0.2.1-ea+13) Java HotSpot(TM) 64-Bit Server VM (build 23.2-b04, mixed mode) Note: If you have not yet installed Apple's Java OS X 2012-006 update, then you are still using a version of Apple Java 6 that includes the plug-in and the Java Preferences application.
Why do I have problems running Java, after updating to macOS 10.12 (Sierra)?![]() Download Java Jdk For Mac
macOS Sierra was released by Apple in September 2016. Java is compatiblewith this version, however, few Java issues have been reported onSierra. We are actively working on identifying and resolving those issues.
A few of the issues that we are currently addressing are listed below.
![]() JVM throws NullPointerExceptions on macOS Sierra 10.12
On macOS Sierra 10.12, if a user presses modifier keys (such as Command, Alt, Shift) while an applet is running in a browser, an error box named “Internal Error” might be displayed. It will also show the “exec” icon in the macOS dock. The user can dismiss the applet, or try to rerun the applet while not pressing a modifier key. See JDK-8165867.
Trackpad scrolling of text is very fast
A bug in macOS Sierra has caused scrolling with the trackpad to to be very fast. A workaround is using a mouse, or updating to Java version 8 Update 121 (released January 2017) or later versions.
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This topic includes the following sections:
System Requirements for Installing the JDK on macOS
The following are the system requirements for installing the JDK on macOS:
Determining the Default JDK Version on macOS
When starting a Java application through the command line, the system uses the default JDK.
There can be multiple JDKs installed on the macOS system.
You can determine which version of the JDK is the default by entering
java -version in a Terminal window. If the installed version is 12 Interim 0, Update 0, and Patch 0, then you see a string that includes the text 12 . For example:
To run a different version of Java, either specify the full path, or use the
java_home tool. For example:
$ /usr/libexec/java_home -v 12 --exec javac -version
Installing the JDK on macOS
After the software is installed, you can delete the
.dmg file if you want to save disk space.
Java Jdk For Mac High Sierra InstallerUninstalling the JDK on macOSYou must have Administrator privileges.
Note:
Do not attempt to uninstall Java by removing the Java tools from
/usr/bin . This directory is part of the system software and any changes will be reset by Apple the next time that you perform an update of the OS.
Installation FAQ on macOS Platform
This topic provides answers for the following frequently asked questions about installing JDK on macOS computers.
1. How do I find out which version of Java is the system default?
When you run a Java application from the command line, it uses the default JDK. If you do not develop Java applications, then you do not need to worry about this. See Determining the Default JDK Version on macOS.
2. How do I uninstall Java?
See Uninstalling the JDK on macOS. Imagemagick install.
3. After installing Java for macOS 2012-006, can I continue to use Apple's Java 6 alongside the macOS JDK for Java 12?
If you want to continue to develop with Java 6 using command-line, then you can modify the startup script for your favorite command environment. For bash, use this:
$ export JAVA_HOME=`/usr/libexec/java_home -v 12`
Some applications use
/usr/bin/java to call Java. After installing Java for macOS 2012-006, /usr/bin/java will find the newest JDK installed, and will use that for all of the Java-related command-line tools in /usr/bin . You may need to modify those applications to find Java 6, or contact the developer for a newer version of the application.
4. Can I restore Apple Java after uninstalling Oracle Java?
Go back to Apple Java using the following instructions:
Download Java Jdk For Mac High Sierra
5. What happened to the Java Preferences app in Application Utilities?
Java
The Java Preferences app was part of the Apple Java installation and is not used by Oracle Java. Therefore, macOS releases from Apple that do not include Apple Java will not include Java Preferences.
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