This page describes how to install and uninstall JDK 8 for OS X computers.
This page has these topics:
Hack on the JDK itself, right here in the OpenJDK Community: Browse the code on the web, clone a Mercurial repository to make a local copy, and contribute a patch to fix a bug, enhance an existing component, or define a new feature. In this article, I will be using Homebrew to install OpenJDK versions on the Mac. We use brew install to install JDK versions 8,9,10, and brew cask install for version 11 and above. JDK 15.0.1 General-Availability Release. This page provides production-ready open-source builds of the Java Development Kit, version 15, an implementation of the Java SE 15 Platform under the GNU General Public License, version 2, with the Classpath Exception. Commercial builds of JDK 15.0.1 from Oracle, under a non-open-source license, can be found at the Oracle Technology Network. ImageJ will run on any system that has a Java 8 (or later) runtime installed. This includes, but is not limited to: Windows XP, Vista, 7 or 8 with Java installed from java.com; Mac OS X 10.8 'Mountain Lion' or later with Java installed from java.com; Ubuntu Linux 12.04 LTS or later with OpenJDK 8 installed; Installation.
See 'JDK 8 and JRE 8 Installation Start Here' for general information about installing JDK 8 and JRE 8.
See 'OS X Platform Install FAQ' for general information about installing JDK 8 on OS X.
System Requirements
Observe the following requirements:
Any Intel-based computer running OS X 10.8 (Mountain Lion) or later.
Administrator privileges.
Note that installing the JDK on OS X is performed on a system wide basis, for all users, and administrator privileges are required. You cannot install Java for a single user.
Installing the JDK also installs the JRE. The one exception is that the system will not replace the current JRE with a lower version. To install a lower version of the JRE, first uninstall the current version as described in 'Uninstalling the JRE'.
JDK Installation Instructions
When you install the Java Development Kit (JDK), the associated Java Runtime Environment (JRE) is installed at the same time. The JavaFX SDK and Runtime are also installed and integrated into the standard JDK directory structure.
Depending on your processor, the downloaded file has one of the following names:
jdk-8u
version
-macosx-amd64.dmg
jdk-8u
version
-macosx-x64.dmg
Where version
is 6 or later.
Download the file.
Before the file can be downloaded, you must accept the license agreement.
From either the Downloads window of the browser, or from the file browser, double click the
.dmg
file to launch it.A Finder window appears containing an icon of an open box and the name of the
.pkg
file.Double click the package icon to launch the Install app.
The Install app displays the Introduction window.
Note:
In some cases, a Destination Select window appears. This is a bug, as there is only one option available. If you see this window, select Install for all users of this computer to enable the Continue button.Click Continue.
The Installation Type window appears.
Click Install. Starcraft 1 download mac.
A window appears that says 'Installer is trying to install new software. Type your password to allow this.'
Enter the Administrator login and password and click Install Software.
The software is installed and a confirmation window appears.
Refer to
http://www.oracle.com/technetwork/java/javase/downloads/jdk-for-mac-readme-1564562.html
for more information about the installation.After the software is installed, delete the
.dmg
file if you want to save disk space.
Determining the Default Version of the JDK
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 app. See 'Note for Users of OS X that Include Apple Java 6 Plug-in'.
There can be multiple JDKs installed on a system, as many as you wish.
When launching a Java application through the command line, the system uses the default JDK. It is possible for the version of the JRE to be different than the version of the JDK.
You can determine which version of the JDK is the default by typing java -version
in a Terminal window. If the installed version is 8u6, you will see a string that includes the text 1.8.0_06. For example:
To run a different version of Java, either specify the full path, or use the java_home
tool:
For more information, see the java_home(1) man page.
Uninstalling the JDK
To uninstall the JDK, you must have Administrator privileges and execute the remove command either as root or by using the sudo(8) tool.
For example, to uninstall 8u6:
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 you perform an update of the OS.
JDK 9 & Later
Oracle's OpenJDK JDK binaries for Windows, macOS, and Linux areavailable on release-specific pages of jdk.java.net as .tar.gz
or.zip
archives.
As an example, the archives for JDK 13 may be found on jdk.java.net/13 and may be extractedon the command line using
$ tar xvfopenjdk-13*_bin.tar.gz
or
$ unzipopenjdk-13*_bin.zip
depending on the archive type.
JDK 8
Debian, Ubuntu,etc.
On the command line, type:
Download Openjdk 8 Mac Os
$ sudo apt-get installopenjdk-8-jre
The openjdk-8-jre
package containsjust the Java Runtime Environment. If you want to develop Javaprograms then please install the openjdk-8-jdk
package.
Fedora, OracleLinux, Red Hat Enterprise Linux, etc.
On the command line, type:
$ su -c 'yum installjava-1.8.0-openjdk'
The java-1.8.0-openjdk
packagecontains just the Java Runtime Environment. If you want to developJava programs then install the java-1.8.0-openjdk-devel
package.
JDK 7
Debian, Ubuntu,etc.
On the command line, type:
Mac Install Openjdk 8
$ sudo apt-get installopenjdk-7-jre
The openjdk-7-jre
package containsjust the Java Runtime Environment. If you want to develop Javaprograms then install the openjdk-7-jdk
package.
Fedora, OracleLinux, Red Hat Enterprise Linux, etc.
On the command line, type:
$ su -c 'yum installjava-1.7.0-openjdk'
The java-1.7.0-openjdk
packagecontains just the Java Runtime Environment. If you want to developJava programs then install the java-1.7.0-openjdk-devel
package.
JDK 6
Debian, Ubuntu,etc.
On the command line, type:
$ sudo apt-get installopenjdk-6-jre
The openjdk-6-jre
package containsjust the Java Runtime Environment. If you want to develop Javaprograms then install the openjdk-6-jdk
package.
Brew Install Openjdk 8
Fedora, OracleLinux, Red Hat Enterprise Linux, etc.
On the command line, type:
$ su -c 'yum installjava-1.6.0-openjdk'
The java-1.6.0-openjdk
packagecontains just the Java Runtime Environment. If you want to developJava programs then install the java-1.6.0-openjdk-devel
package.
BSD Port
For a list of pointers to packages of the BSD Port forDragonFly BSD, FreeBSD, Mac OS X, NetBSD and OpenBSD, please seethe BSD porting Project's wikipage.