How to install JRE 1.7 on Mac OS X and use it with Eclipse?
EclipseMacosJavaEclipse Problem Overview
I want to use the JRE 1.7 that I downloaded from Oracle website.
So I correctly install the .pkg file, and when I try /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/java -version in the terminal I get this :
> java version "1.7.0_11" Java(TM) SE Runtime Environment (build > 1.7.0_11-b21) Java HotSpot(TM) 64-Bit Server VM (build 23.6-b04, mixed mode)
But in Eclipse I can't use anything else than JRE 1.6. When I go in Properties > Java Build Path > Add Library > JRE System Library, I can't find the 1.7 (there is only option for it : JavaSE-1.7 (unbound) with this issue :
> No JREs in workspace compatible with specified execution environment: JavaSE-1.7
What should I do ? Thanks
Eclipse Solutions
Solution 1 - Eclipse
The download from java.com which installs in /Library/Internet Plug-Ins is only the JRE, for development you probably want to download the JDK from http://www.oracle.com/technetwork/java/javase/downloads/index.html and install that instead. This will install the JDK at /Library/Java/JavaVirtualMachines/jdk1.7.0_<something>.jdk/Contents/Home which you can then add to Eclipse via Preferences -> Java -> Installed JREs.
Solution 2 - Eclipse
Try editing your eclipse.ini file and add the following at the top
-vm
/Library/Java/JavaVirtualMachines/jdk1.7.0_09.jdk/Contents/Home
Of course the path may be slightly different, looks like I have an older version...
I'm not sure if it will add itself automatically. If not go into
Preferences --> Java --> Installed JREs
Click Add and follow the instructions there to add it
Solution 3 - Eclipse
You need to tell Eclipse which JDK/JRE's you have installed and where they are located.
This is somewhat burried in the Eclipse preferences: In the Window-Menu select "Preferences". In the Preferences Tree, open the Node "Java" and select "Installed JRE's". Then click on the "Add"-Button in the Panel and select "Standard VM", "Next" and for "JRE Home" click on the "Directory"-Button and select the top level folder of the JDK you want to add.
Its easier than the description may make it look.