My previous post about installing Java on OS X received quite a bit of traffic, and I felt that some of the information was outdated, and it became a little unclear after all the edits, so I’ve endeavoured to create a much easier to understand set of instructions.
The instructions for installing the JDK (Java Development Kit) are a subset of the instructions for installing just the JRE, because Oracle provides an installer for the JDK.
If you want to develop Java applications, download the Java Development Kit, or JDK. See Oracle JDK 7 and JRE 7 Supported. JRE 7 Installation for Mac OS X; JDK. Hi, I'm new with Java in Mac OS. Which one should I download for JDK 6 Update 7 Mac OS?
Java 7 free download - Referencia para Java 7, Apple Java for OS X 10.7/10.8, Java SE 7 OCA Certification Training Lab, and many more programs. AVG AntiVirus for Mac. View all Mac apps. Many Adobe applications depend on the Oracle Java Runtime Environment (JRE) for some features to work. Apple recently changed the way it includes Java in Mac OS, and with Lion, Java is no longer preinstalled.
- Go to the Oracle Java downloads page and download the JDK installer. You should end up with a file named something similar to
jdk-8u60-macosx-x64.dmg, but perhaps a newer version. - Open the
.dmgDisk Image and run the installer. - Open
Terminal - Edit the JDK’s newly installed
Info.plistfile to enable the included JRE to be used from the the command line, and from bundled applications:The third line fixes a permissions issue create by using
defaults write. The fourth line is not required, but makes the file more user-friendly if you open it again in a text editor. - Create a link to add backwards compatibility for some applications made for older Java versions:
- Optional: If you’re actually using the JDK for software development, you may want to set the
JAVA_HOMEenvironment variable. The recommended way is to use/usr/libexec/java_homeprogram, so I recommend settingJAVA_HOMEin your.bash_profilelike Jared suggests:This will get the latest installed Java’s home directory by default, but check out
man java_homefor ways to easily get other Java home directories.
You should be done now, so try and open the application. If it does not work, some applications require legacy Java 6 to be installed. You can have it installed without actually using it, however, it’s possible to trick the applications into thinking legacy Java 6 is installed, without actually doing so.
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If you’re running El Capitan, this is actually a little difficult now, because Apple added SIP (System Integrity Protection) to OS X. I have written a post explaining how to disable and enable SIP.
If you’ve disabled SIP, or are not running El Capitan yet, you can trick some applications into thinking legacy Java 6 is installed by creating two folders with the following commands in Terminal:
Don’t forget to enable SIP again after creating these directories.
I would like to use the WatchService API as mentioned in this link:http://download.oracle.com/javase/tutorial/essential/io/notification.html
After reading around, I found out that WatchService is part of the NIO class which is scheduled for JDK 7. So, it is in beta form. It's fine.
http://jdk7.java.net/download.html has the JDK which I downloaded and extracted. I got a bunch of folders. I don't know what to do with them.
Then, I read around some more and found that some nice group of people created JDK 7 as a binary so someone like me can install it easily. It is called Open JDK:http://code.google.com/p/openjdk-osx-build/
So, I downloaded the .dmg file and install it. Then I open 'Java Preference' and see that OpenJDK7 is available.
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So, now I feel that I can start trying out WatchService API. From the tutorial in the first link, the author gave a .java file to test it out first and make sure that it is running. Here is the link to the file:http://download.oracle.com/javase/tutorial/essential/io/examples/WatchDir.java
So, I boot up Eclipse (actually I use STS) and create a new Java project and choose JaveSE-1.7 in the 'use an execution environment JRE:'. Under the src folder, I copy pasted the WatchDir.java file.
And I still see tons of squiggly red lines. All the 'import.java.nio.*' are all red and I cannot run it as a Java app.
What do I need to do?
Zoe14 Answers
Ben SThis is how I got 1.7 to work with Eclipse. I hope it helps.
- I Downloaded the latest OpenJDK 1.7 universal (32/64 bits) JDKfrom Mac OS/X branch from http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
- copied the jdk to /Library/Java/JavaVirtualMachines/ next to thedefault 1.6.0 one
- In Eclipse > Preferences > Java > Installed JREs you add a new one, of type MacOS X VM, and set the home as /Library/Java/JavaVirtualMachines/1.7.0.jdk/Contents/Home andname Java SE 7 (OpenJDK)
- Click Finish
- Set the added JRE as default
that should be it :)
vectorsizevectorsizeYears ago, Apple joined the OpenJDK project, transferring their formerly proprietary macOS-specific JVM code as free-of-cost open-source. Apple ceased distribution of their own branded JVM/JDK, relying on Oracle’s branded releases to include a version for macOS.
Oracle has recently announced their intention to bring their Oracle-branded JVM release to feature parity with the OpenJDK project, with virtually the same code base. The company even donated their previously commercial tools, Flight Recorder & Mission Control, to the OpenJDK project. This is part of the shift to a new rapid “release train” plan for predictably scheduled versioning of Java and OpenJDK. Notably, the periods for free-of-cost public updates is now shortened. See this 2017-09 announcement and this posting by Mark Reinhold.
As a result of all this, macOS users of Java have a choice of vendors for a Java implementation. At this point, at least three sources are based on OpenJDK for macOS:
- Oracle releases of the JDK and JRE, with optional paid support.
- Azul Systems releasing:
- Zulu line of free-of-cost JVMs with optional paid support.
- Zing line of commercial JVMs with special features such as an alternate garbage-collector.
- OpenJDK source code, roll-your-own compilation & installation (perhaps not practical for most of us).
Meanwhile, IBM donated code for a JVM to the Eclipse Foundation, now housed in the OpenJ9 project. I wonder if they might support a macOS release as well, though it is too soon to tell.
Personally, I am currently using the Zulu release of Java 10.0.1 from Azul on macOS High Sierra successfully with IntelliJ 2018.2 to produce Java-backed web apps with Vaadin.
Installation/Removal
Both Oracle and Azul provide utterly easy-to-use installers to install the JVM/JDK on your Mac. Verify your installation by using the Terminal.app (or equivalent) to type and run:
You will find the Java installations in this folder at the root level of your drive (not in your home folder):
/Library/Java/JavaVirtualMachines
Each version from each vendor is found there, in a labeled nested folder. You can delete any installation simply by deleting the nested folder for that version and providing your system password when prompted.
You can download the Java Development Kit (JDK) for Java 8 for the supported versions of Mac OS X:
- Mountain Lion (10.8.3+)
- Mavericks (10.9)
- Yosemite (10.10)
- El Capitan (10.11)
Each version of JVM you install can be found here:
For more instructions and FAQ, see this Oracle Guide.
For every release of Java 7 since Update 4, a Mac version has been ready alongside the other platforms. Runs on Macs with 64-bit hardware on Lion (10.7.3+), Mountain Lion (10.8.3+), and Mavericks (10.9.x).
Oracle announced the official release of the JDK for Java SE 7 Update 4 on Mac OS X (Lion), as of 2012-04-26. No more need for the tricks discussed on this page.
Installation is simple per these instructions:
- Download from the usual place on the Oracle web site.
- Mount the DMG.
- Run the installer.
This release has a few limitations, most notably the lack of support for Java Web Start and the Java Plugin for web browsers. That support is expected later this year.
After installing, read the JDK for Mac ReadMe. Most importantly, if you want Java 7 to be the default, drag it to the top of the list in the Java Preferences app found in your Utilities folder.
Mac OS X easily supports multiple JVMs simultaneously. Each is now found here:
Congratulations to the Apple & Oracle teams for their achievement. This geek gets a thrill seeing Mac OS X listed as a 'Certified System Configuration'.
Oracle Java 7 Download Mac
Tip: To start Eclipse on a Mac with only Java 7 installed, open the alias file named eclipse rather than the file named Eclipse.app.
Apple continues to supply an up-to-date implementation of Java 6 for all versions of Mac OS X up through Mountain Lion.
If you do something that requires Java, such as type 'java -version' in Terminal.app, a dialog appears offering to install Java for you. If you accept, installation happens automatically similar to other 'Software Updates' from Apple.
You will find Java installed in this location, different than Java 7 & 8:
Java 6 has reached end-of-life with Oracle as of 2013-02 (unless you have a commercial support agreement with Oracle). So you should be moving to Java 7 or 8.
In Terminal.app, type java -version to verify which version is the current default.
After installing a fresh version, you may want to visit the folder described above to delete old versions. Move the folder to the Trash, and provide your System password complete the move.
By the way, Apple provides a mailing list for developers’ technical issues related to Java on OS X.
Basil BourqueBasil BourqueAn easy way to install Java 7 on a Mac is by using Homebrew, thanks to the Homebrew Cask plugin (which is now installed by default).
Run this command to install Java 7:
AndrewAndrewI know that some may want to smack me for re-opening old post, but if you feel so do it I just hope this may help someone else trying to set JDK 7 on Mac OS (using IntelliJ).
What I did to get this working on my machine is to:
- followed instructions on Oracle JDK7 Mac OS X Port for general installation
- in IntelliJ open/create new project so you can add new SDK (File > Project Structure)
- select Platform Settings > SDKs, press '+' (plus) sign to add new SDK
- select JSDK and navigate to /Library/Java/JavaVirtualMachines/JDK 1.7.0 Developer Preview.jdk/Contents/Home. Do not get it mistaken with /Users/YOUR_USERNAME/Library/Java/. This will link 4 JARs from 'lib' directory (dt.jar, jconsole.jar, sa-jdi.jar and tools.jar)
- you will need also add JARs from /Library/Java/JavaVirtualMachines/JDK 1.7.0 Developer Preview.jdk/Contents/Home/jre/lib (charsets.jar, jce.jar, JObjC.jar, jsse.jar, management-agent.jar, resources.jar and rt.jar)
Get cask
Install java7:
(I had difficulty finding the download link of java7 on oracle website, as they're just 'recommending' java8 )
EDIT January 2018(As pointed by Ankur):
Use zulu7 cask. Zulu is a certified build of OpenJDK produced by Azul Systems that should be around for a long time (they even offer JDK6 builds still).
It's possible that you still need to add the JDK into Eclipse (STS). Just because the JDK is on the system doesn't mean Eclipse knows where to find it.
Go to Preferences > Java > Installed JREs
If there is not an entry for the 1.7 JDK, add it. You'll have to point Eclipse to where you installed your 1.7 JDK.
If Eclipse can't find a JRE that is 1.7 compatible, I'm guessing that it just uses your default JRE, and that's probably still pointing at Java 1.6, which would be causing your red squiggly lines.
after installing the 1.7jdk from oracle, i changed my bash scripts to add:
and then running java -version showed the right version.
How about Netbeans, here is an article how to set it up with NB7:
Maybe similar steps for Eclipse.
As of April 27th there is an offical Oracle release of Java SE 7u4. Download the disk image and run the installer - then see the Mac readme.
MarkMarkThe instructions by peter_budo worked perfectly. I had to add the jars under /Library/Java/JavaVirtualMachines/JDK 1.7.0 Developer Preview.jdk/Contents/Home/jre/lib/ to my IntelliJ project libraries. Now it works like a charm. Note that I didn't need my IDE itself to run under 1.7; rather, I only needed to be able to compile and run against 1.7. I'll most likely continue to use Apple's JRE for running the IDE since it's probably more stable with respect to graphics routines (Swing, AWT). Like the OP, I was really keen on testing out the new NIO2 API. Looking good so far. Thanks, Peter.
What worked for me on Lion was installing the JDK7_u17 from Oracle, then editing ~/.bash_profile to include: export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_13.jdk/Contents/Home
As of December 2017, previously posted links don't work, but JDK 7 can still be downloaded from Oracle Archives (login required):
ozren1983Java Runtime Download For Mac
ozren1983I updated to Yosemite and Android Studio wouldn't clean my projects or Run them on virtual or real device because of the following error:
After some research and trouble shooting, I found that the JDK file that was being pointed to at '/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home' wasn't there; all of 'JavaVirtualMachines/1.6.0.jdk/Contents/Home' was missing from '/System/Library/Java'. So, I copied 'JavaVirtualMachines/1.6.0.jdk/Contents/Home' over from '/Library/Java/' to '/System/Library/Java/' and cha ching! I was back in business.
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