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I run a new Mac with OS Sierra Version 10.12.1, installed Java 8.111 which is recognised successfully by the test program and eventually installed eclipse neon 4.2. But when I try to start it, I get the message "To open “Eclipse” you need to install the legacy Java SE 6 runtime". There is a link to the site "https://support.apple.com/kb/DL1572?locale=en_US" dated from July 22 2015 and telling to install java for OSX 2015-01 for the OS 10.7 to 10.11. There is also a link with explanation starting with a warning, that this information is about an older unsupported Java version, Download the latest version of Java for OS X directly from Oracle. There is some information hard to understand ( why should Java 6 be installed, since it is deprecated and even dangerous?)
Since I didn't find any other mean and thought the page was maybe not updated I installed the tool, but the launch eclipse still stops unexpectedly with an error report.
Thanks for ideas to overcome this
Like #greg-449 pointed out, install Java 8 JDK (not JRE) to get Eclipse Neon running on macOS Sierra.
Do not install Java 6. I tried that, and got an error message saying Java 8 is needed.
I have a clean install of El Capitan. I have PHPStorm installed on my Macbook Air. When I try to run the application, I get an error that says PHP storm can't be opened because it requires legacy Java SE 6. I've attached an image of the error below.
I had the same problem when I installed Yosemite but I was able to install the legacy java fix (Java for OS X 2014-001) from Apple's website. When I try installing that same java fix I get the following Error:
Java for OS X can't be installed on this disk. A newer version of this package is already installed
Any thoughts and help will be greatly appreciated!
Thanks
Download Java 6 for El Capitan:
Java for OS X 2015-001 Beta
https://support.apple.com/kb/DL1824
I've used Homebrew to install JDK 1.6.0_65:
brew tap homebrew/cask-versions
brew cask install java6
If you have a problem with Java version on OsX Yosemite or El Capitain, you should download bundled Webstorm (or any other IDE from Jetbrains). It's working, I've tried it by myself.
https://www.jetbrains.com/webstorm/download/
And yes, this is not a programming related question, but it's an IDE for programming and when you come to work at morning and you can't code — that's problem — and you don't care if it's related ;)
i changed version to 1.8 here in below instructions and PhpStorm is now working for me.
At the moment all our products require Apple JDK 1.6 to be installed in order to run on Mac. JDK 1.7 from Oracle is not officially supported yet and has known problems that stop us from using it by default. Oracle JDK 1.7.0_40 has added support for Retina and works much better than previous versions on Mac. You are welcome to give it a try in case you have any problems with Apple JDK.
To force running under JDK 1.7 edit /Applications/.app/Contents/Info.plist file, change JVMVersion from 1.6* to 1.7* :
JVMVersion
1.7*
Open Terminal.app and write sudo nvram boot-args="rootless=0" + return
Reboot
Install Java from https://support.apple.com/kb/dl1572?locale=en_US
This will install Java 6, 7 and 8. Enjoy!
I downloaded Eclipse (specifically that for C/C++ Programming) for Mac, running OSX Mavericks. When I try to start Eclipse, it gives me this message: "Version 1.6.0_65 of the JVM is not suitable for this product. Version 1.7 or greater is required", and it doesn't open. I installed Java version 7, but nothing changed. I don't know how else to update the JVM (I don't know much about Java in general).
I downloaded the 64-bit version for my MacBook Air, if that matters.
Simply Install the JDK 7 or JDK 8, and not just the latest JRE.
Run whereis java in a Terminal. It will normally display something like /usr/bin/java.
Now run java -version. It shows you 'java version 1.6.0_65' or something approaching. This is because Java 7 does not replace Java 6. Java 7 is installed as an Internet Plug-in and can be found in /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/java.
What you need to do is to symlink /usr/bin/java to /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/java.
Restart Eclipse, or reboot your computer (I don't know how Eclipse manages this), and it should do the trick. :)
I went to oracle downloads and the scrolled one of the several Mac osX links and downloaded jdk-8u73-nb-8_1-macosx-x64.dmg from oracle and that fixed the problem. I don't know why updating java doesn't do the trick.
add this script into 'eclipse.ini' at the top
'/Library/java/JavaVirtualMachines/jdk1.8.0_77.jdk/contents/Home/bin'
Trying to install eclipse, I installed java version 1.6.0_65 as it requested yet still was blocked from finishing the Eclipse install with the error that I needed 1.7 JVM or higher - not true, installing higher didn't work either. I tried installing jdk-8u101-macosx-x64.dmg and that didn't work. So, I tried JDK 7 as advised, sorry no good.
So, to get the Eclipse installer to run with out that java error I had to edit the Info.plist inside the Eclipse Installer. Right click the Eclipse installer and show package contents, then open info.plist in textEdit.app
(Note: So after several tries editing this plist and following methods mentioned elsewhere nothing worked, I found that you have to use the symlink or java alias because java is installed differently now a days as an internet plugin.)
Where you want to make an edit (You should probably Backup the original or you can download it again), under <key>Eclipse</key>, then <array>, delete out what's there and add <string>-vm</string> and this string underneath; <string>/usr/bin/java</string>
Here is what mine looks like.
<key>Eclipse</key>
<array>
<string>-vm</string>
<string>/usr/bin/java</string>
<string>-keyring</string>
<string>~/.eclipse_keyring</string>
<string>-showlocation</string>
</array>
Then save and try running your eclipse installer; this worked for me.
Just running the below command from there terminal worked for me.
brew cask install java
It updated my idk with 1.8, and after that eclipse opens successfully.
Installed Java SE 1.7.0u10 from Oracle w/ their installer package
Downloaded and unpacked Eclipse Juno (4.2.1)
Double click Eclipse purple icon and get OS X alert prompt with error message:
To open "Eclipse," you need a Java SE 6 runtime. Would you like to
install one now?
(in terminal) which java - /usr/bin/java
ls -l /usr/bin/java - /usr/bin/java -> /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java
(in Finder) Double click eclipse alias (included when unpacked download) - Terminal launches, /Applications/Eclipse/Eclipse.app/Contents/MacOS/eclipse ; exit ; and Exclipse launches without OS X alert prompt.
I've tried modifying the Eclipse app bundle plist to point the -vm key to /System/Library/Frameworks/JavaVM.frameworks/Versions/Current/Commands/java, but I feel like I probably shouldn't have to do this.`
I'd like to know how to get Eclipse to launch by just double clicking on the Application package. It's such a small thing to bug me... :o)
The best answer is to fix the Java 7 installation as shown here :
https://stackoverflow.com/a/19594116
Simple to do and I have confirmed it works on Mavericks. With this fix, you can launch your app from the launchpad as usual. If you upgrade your JDK, you will have to reapply the fix to the new installation.
I had JDK 7 installed and I solved this issue for eclipse Kepler by running eclipse from the terminal instead of the finder.
./eclipse
Just thought to share.
Update 1
For the sake of completeness, if you want to run it from Finder as well, you can wrap the ./eclipse command into a .command file and run it from Finder (so that you don't have to open a terminal)
The following lines should do the job (don't forget to replace "your-full-eclipse-path" with the eclipse path on your machine)
#!/bin/sh
/your-full-eclipse-path/eclipse
After that, give execute permission to the eclipse.command file you just created
chmod +x eclipse.command
I found the answer over on Ask Different
It's an ugly hack, but works perfectly.
posted on this page: Mountain Lion with Java 7 only
To trick OS X to accept Java 7 instead of proposing to install Java 6 a simple symlink is enough:
sudo mkdir /System/Library/Java/JavaVirtualMachines
sudo ln -s /Library/Java/JavaVirtualMachines/1.7.0.jdk /System/Library/Java/JavaVirtualMachines/1.6.0.jdk
Most Java Programs will run with this little hack without the need to install Java 6. OS X's Java Preferences (and maybe some others) will not as it seems to explicitly check the version of the JVM when it is started.
script above can fix my problem.
Hoping you are using 64-bit of Java SE 1.7.0 and so advising the following.
go to Eclipse->Preferences...->Java->Installed JREs
click Add...
Select Standard VM
paste /Library/Java/JavaVirtualMachines/1.7.0.jdk/Contents/Home into JRE home
Change the JRE name to something useful like Java SE 7
Click Finish
Check the check-box next to your newly created JRE.
You would need a restart.
For what it's worth, the Eclipse team seems to have worked around it by replacing their dlopen()-based method with a CFBundleCreate()-based one: https://bugs.eclipse.org/bugs/show_bug.cgi?id=411361
In case anybody has the same problem in their code that launches Java and does not want to resort to Apple-only APIs, I found an easier work-around: before dlopen()ing $JRE_HOME/lib/server/libjvm.dylib, make sure to open dlopen() $JRE_HOME/lib/jli/libjli.dylib. Then it won't ask to install Java 6.
Can you imagine that? You have to install a JDK 1.6 to get eclipse ran properly, even if you already have jdk 1.7 installed, and set the JAVA_HOME properly.
To resolve your issue, you just need to download the jdk1.6 from http://support.apple.com/kb/DL1572?viewlocale=en_US, and install it, later you will be able to run eclipse, and you can set the JAVA_HOME to JDK1.7, and you will be able to find the JDK1.7 from eclipse "Preferences".
All these hacks does not work on mac Mavericks,
But a simple and efficient solution is found here
it worked with me like a charm.
Note: a drawback of this solution is when you check your java version using "java -version" command, it will read Java 1.6
open /Library/Java/JavaVirtualMachines/jdkXXXXX.jdk/Contents/Info.plist
settting(<string>BundledApp</string> is usefull!):
<key>JVMCapabilities</key>
<array>
<string>JNI</string>
<string>BundledApp</string>
<string>WebStart</string>
<string>Applets</string>
<string>CommandLine</string>
</array>
I had the exact same message when setting up a new mac and trying to run eclipse 4.2.2 with only Java SE 7 installed (as part of JDK 7u17).
In order to be able to successfully launch Eclipse I had to let OSX download and install Apple's Java SE 6 runtime first before installing the latest JDK.
After installing the JDK, the command java -version correctly shows:
java version "1.7.0_17"
Java(TM) SE Runtime Environment (build 1.7.0_17-b02)
Java HotSpot(TM) 64-Bit Server VM (build 23.7-b01, mixed mode)
Trying to solve the problem the other way around didn't work -- i.e. installing JDK 7u17 first before installing Java SE 6 as suggested in the message.
I had the exactly same problem some days ago and I solved it today. Just installed this http://support.apple.com/kb/dl1572
And after that, when I opened the eclipse the OSX installed some java update and opening eclipse by Eclipse.app started working.
Hope it works with you too.
If you'd like to install Java 6 JDK only (no Java 7 JDK/JRE, no Java 6 JRE only), install the Apple OSX Java DMG (at time of writing, this was http://adcdownload.apple.com/Developer_Tools/java_for_os_x_2013003_developer_package/java_for_os_x_2013003_dp__11m4406.dmg).
You still won't be able to start Eclipse. Make a directory JavaVirtualMachines under /System/Library/Java. And then make an Alias of the java version folder at /Library/Java/JavaVirtualMachines and rename the alias 1.6.0.jdk and copy that alias to /System/Library/Java/JavaVirtualMachines/
After finished, you will have an Alias at /System/Library/Java/JavaVirtualMachines/1.6.0.jdk that points to the Java install directory at */Library/Java/JavaVirtualMachines/1.6.0_XX-XXX-XXX.jdk*
Install latest JDK from Sun, it installs into /Library/Java/JavaVirtualMachines/, e.g. /Library/Java/JavaVirtualMachines/jdk1.7.0_40.jdk
sudo mkdir /System/Library/Java/JavaVirtualMachines
sudo ln -s /Library/Java/JavaVirtualMachines/jdk1.7.0_40.jdk/ /System/Library/Java/JavaVirtualMachines/1.6.0.jdk
========= this trick used to work on Mountain Lion, but not on Maverick 10.9 somehow ============
Tried this again on Maverick, it does not work anymore. I also tried to change eclipse app plist and eclipse.ini (by adding -vm or ), does not work either.
Some people suggested that this is caused by Eclipse binary prepared using Apple 1.6 appbundler instead of Oracle java7 appbundler: Application is using Java 6 from Apple instead of Java 7 from Oracle on Mac OS X?
For now, please just type the eclipse from command line, which works fine with JAVA_HOME set to Java 7 (/usr/libexec/java_home command will tell you)
How to Make Eclipse Run on OS X 10.9 Mavericks
Attempting to launch various Eclipse versions after the Mavericks upgrade pops up a dialog with this message:
To open "Eclipse.app" you need a Java SE 6 runtime. Would you like to install one now?
It turns out that Java 7 is disabled by default in OS X 10.9.
This is easily verified as follows:
$ java --version
No Java runtime present, requesting install.
The solution is to install the latest supported Java version from Apple support: Java for OS X 2013-005 (http://support.apple.com/kb/DL1572)
As of 10/15/13 this would be Java SE 6 1.6.0_65.
Post Date: Oct 15, 2013
File Size: 63.98 MB
After the install, Eclipse will run as expected from the Dock, the Finder, or the Terminal without any tricks, hacks, or work-arounds.
I wanted to run Eclipse itself with Java 7. As I have a couple of plugins that do not work without it. For me neither solution worked for 10.9, but I found a workaround. The main idea is that you start eclipse with java -jar launcher.jar and provide a couple of magic properties and then it starts. This guy provided the command line script in comments that works for me:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=411361#c25
I found the same problem (Mac OS X 10.9.2, Java 1.7.0_53b13, Eclipse Kepler). The workaround was quite easy:
Find the executable in Finder (CMD+Click on Eclipse's icon in the Dock)
Remove the icon from the Dock
CTRL+Click on the executable in Finder
ALT+Open (to allow the execution of a non-signed application)
Eclipse opens normally and without any problem
Re-dragged the program onto the Dock
I had this problem and found that I did not have JDK installed on my Mac. Once I did that, Eclipse starts normally.
I had same problem.
First of all ; JDK(java development Kit) and JRE(Java Runtime Environment) are different things. It was confused by people
In order to install eclipse yo should install latest JDK . So
Visit
http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
Download suitable version for your mac
You can check your version now ; it won't be 1.6 anymore
Try to install eclipse again , see it works.
Good luck!..
I want to install a specific JDK (the latest for example). For this, I went to the JDK download homepage: http://java.sun.com/javase/downloads/index.jsp.
I looked for a Mac version, but I'm a bit surprised to only see downloadable versions for Linux, Windows and Solaris...
Here's the message for Mac:
"Apple Computer supplies their own version of Java. Use the Software
Update feature (available on the Apple menu) to check that you have
the most up-to-date version of Java for your Mac."
OK BUT... when I update Java with Mac I have a JRE and not a JDK...
I don't understand why a JDK version doesn't exist that is easily downloadable/installable (like a jar to unzip?) for Mac...
In a comment under #Thilo's answer, #mobibob asked how to set JAVA_HOME in your .bash_profile on a Mac. Answer:
export JAVA_HOME=`/usr/libexec/java_home`
This will dynamically assign to JAVA_HOME the location of the first JDK listed in the "General" tab of "Java Preferences" utility.
See Apple Technical Q&A 1170: https://developer.apple.com/library/content/qa/qa1170/_index.html
EDIT:
If you prefer parentheses to backticks for command substitution, this also works:
export JAVA_HOME=$(/usr/libexec/java_home)
As the message says, you have to go to Apple, not Sun, for Java on the Mac. As far as I know, Apple JDK 6 is installed by default on Mac OS X 10.6 (Snow Leopard). Maybe you need to install the developer tools from your Mac OS X installation DVD (the dev tools are an optional install from the OS DVD).
See: http://developer.apple.com/java/
NOTE This answer from 16 Oct 2009 is now outdated; you can get the JDK for Mac OS X from the regular JDK download page on Oracle's website now.
For people using any LION OS X 10.7.X
They uploaded Java SE 6 version 1.6.0_26 available here
http://support.apple.com/kb/dl1421
I bought a MacBook Pro yesterday (Mac OS X v10.8 (Mountain Lion)) and there is no JDK installed by default...
As well as javac, I also found it didn't have packages such as SVN installed. It turns out you can get everything from the Apple developer page (you will need to register with your AppleID). SVN is part of the "Command Line Tools" package.
This is what happens on a fresh MacBook:
Hopefully this will help out other newbies like me ;)
The explanation is that JDK is a bit specific and does not contain the library tools.jar. For my development, I need this library and Mac's JDK doesn't provide it:
(Cf. http://developer.apple.com/mac/library/documentation/Java/Conceptual/Java14Development/02-JavaDevTools/JavaDevTools.html)
tools.jar does not exist. Classes usually located here are instead included in classes.jar. Scripts that rely on the existence of tools.jar need to be rewritten accordingly.
It sucks!
The easiest way is to use Homebrew.
Install Homebrew and then:
brew tap caskroom/versions
brew cask install java7
You can list all available versions using the following command:
brew cask search java
Mac comes with the JDK, for more information check:
http://developer.apple.com/mac/library/documentation/Java/Conceptual/Java14Development/02-JavaDevTools/JavaDevTools.html
Compiling with -source 1.5 -target 1.5 (in a JDK 6 environment) will honor only language elements that were in 1.5 and prior. Great. But there were no language changes in 6 anyway. Problem with this approach (on Mac with 1.6) is that using classes that came AFTER 1.5 will still compile because they exist in the rt.jar. So one could run in a 1.5 env and get a class not found exception with no prior warning when compiling. I found this out the hard way with javax.swing.event.RowSorterEvent/Listener. Both entered "Since 1.6" but are not caught with -source 1.5
If you installed brew, cmd below will be helpful:
brew cask install java
As of Mac OS X v10.6 (Snow Leopard), you can run Java 6 in 32-bit mode on either 32-bit or 64-bit Intel processor equipped Macs.
If you cannot upgrade to Snow Leopard, Soy Latte is a pre-compiled version of Java 6 for Intel 32-bit.
There are various tricky issues with having multiple versions of Java (Apple's own Java 6 and Oracle JDK 7 or even 8) on one's Mac OS X system, and using different versions for different applications. I spent some time writing up my experience of my experience of installing and configuring various versions of JDK on Mac OS X 10.9.2.
In 2022, give a try to sdkman, is better than brew
curl -s "https://get.sdkman.io" | bash
then open a new shell and try list to see what you could install ;-)
sdk list java
At time of writing you could use:
sdk install java 17.0.1-tem
Check this awesome tool sdkman to manage your jdk and other jdk related tools with great ease!
e.g.
$sdk list java
$sdk install java <VERSION>
Since most answers are out of date, here's what works as of end of 2018 under the assumption that
You want to install the GPL version of OpenJDK.[0]
You do not want to install Homebrew
In that case, grab the desired version from one the many available, freely usable OpenJDK editions, e.g.:
AdoptOpenJDK
Amazon Corretto (Great for production, includes backports)
Oracle GPLv2 OpenJDK
Some of these include installers, but if not you can do the following. Assuming here version 11.0.1 for Mac. In your favorite shell, run:
tar -xzf openjdk-11.0.1_osx-x64_bin.tar.gz
sudo mv jdk-11.0.1.jdk /Library/Java/JavaVirtualMachines
# Fix owner and group
sudo chown -R root:wheel /Library/Java/JavaVirtualMachines/jdk-11.0.1.jdk
# (Optional) Check if the new JDK can be found
/usr/libexec/java_home
=> /Library/Java/JavaVirtualMachines/jdk-11.0.1.jdk/Contents/Home
[0] Note that the Oracle branded JDK has significant licensing restrictions allowing you its use basically only for testing, i.e., not for production. If you do not have a support agreement with Oracle, then it seems risky to me to use their JDK, especially since the differences to OpenJDK are minimal.
Edit: added more choices
I think this other Stack Overflow question could help:
How to get JDK 1.5 on Mac OS X
It basically says that if you need to compile or execute a Java application with an older version of the JDK (for example 1.4 or 1.5), you can do it using the 1.6 because it is backwards compatible. To do it so you will need to add the parameter -source 1.5 and/or -target 1.5 in the javac options or in your IDE.
JDK is the Java Development Kit (used to develop Java software).
JRE is the Java Runtime Environment (used to run any .jar file 'Java software').
The JDK contains a JRE inside it.
On Windows when you update Java, it updates the JRE automatically.
On Mac you do not have a JRE separated you have it, but inside the JDK, so when you update Java it will update your JRE which is inside your JDK;
it doesn't install an JDK for you. You need to get it from somewhere else.
As a rule you cannot install other versions of Java on a Mac than those provided by Apple through Software Update. If you need Java 6 you must have a 64-bit Intel computer. You should always have Java 5 and 1.4 and perhaps 1.3 installed if you have at least OS X 10.4.
If you have VERY much elbow grease and is willing to work with beta software you can install the OpenJDK under OS X, but I don't think you want to go there.