I just downloaded Java 7u17 on Mac OS 10.7.5 from here and then successfully installed it. In order to do some JNI programming, I need to know where Java installed on my Mac.
I thought that inside the /Library/Java/JavaVirtualMachines/
folder, there would be a folder called 1.7.0.jdk
or something, but then I found that the folder is empty. This was confirmed by running ls /Library/Java/JavaVirtualMachines/
in the Terminal. I've tried searching for it to find out if it was installed somewhere else, but that doesn't seem to be turning anything up.
Could someone please tell me where Java is installed on my Mac?
if you are using sdkman
you can check it with sdk home java <installed_java_version>
$ sdk home java 8.0.252.j9-adpt
/Users/admin/.sdkman/candidates/java/8.0.252.j9-adpt
you can get your installed java version with
$ sdk list java
just write /Library/Java/JavaVirtualMachines/
in Go to Folder --> Go in Finder
Edited: Alias to current java version is /Library/Java/Home
For more information: a link
Turns out that I actually had the Java 7 JRE installed, not the JDK. The correct download link is here. After installing it, jdk1.7.0jdk
appears in the JavaVirtualMachines directory.
You could use echo $(/usr/libexec/java_home)
command in your terminal to know the path where Java being installed.
type which java
in terminal to show where it is installed.
I have just installed the JDK for version 21 of Java SE 7 and found that it is installed in a different directory from Apple's Java 6. It is in /Library/Java... rather then in /System/Library/Java.... Running /usr/libexec/java_home -v 1.7 versus -v 1.6 will confirm this.
If you type
java -verbose
This also gives the location from which the jars are loaded and hence also the java path.
Java package structure of Mac OS is a bit different from Windows. Don't be upset for this as a developer just needs to set PATH
and JAVA_HOME
.
So in .bash_profile
set JAVA_HOME
and PATH
as below. This example is for Java 6:
export JAVA_HOME=/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
export PATH=/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin:$PATH
Use unix find function to find javas installed...
sudo find / -name java
I tried serkan's solution, it found java 7's location on OS X Mavericks.
it is resided in "/Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/"
but to make it the default JDK I had to set JAVA_HOME system variable in .bash_profile in home directory to "/Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home/"
so its up and running now thanks to serkan's idea
If you install just the JRE, it seems to be put at:
/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home
For :
OS X : 10.11.6
Java : 8
I confirm the answer of @Morrie .
export JAVA_HOME=/Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin/Contents/Home;
But if you are running containers your life will be easier
The System Preferences then Java control panel then Java then View will show the exact location of the currently installed default JRE.
Source: Stackoverflow.com