Cannot set JAVA_HOME in /etc/enviroment with JAVA_HOME="/home/syncsys/bin/jdk1.7.0_10/"
The command echo $JAVA_HOME gives me /home/syncsys/bin/jdk1.7.0_10/ but it's not a correct Java HOME or I need something else?
I dont want bashrc or profile (some issues). Only /etc/enviroment and a way to eliminate the need of reboot after /etc/enviroment updates.
My /etc/envirment :
JAVA_HOME="/home/syncsys/bin/jdk1.7.0_10"
PATH=$JAVA_HOME:$PATH
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games"
some commands to test :
syncsys#sync-pc:~$ JAVA_HOME=/home/syncsys/bin/jdk1.7.0_10
syncsys#sync-pc:~$ export JAVA_HOME
syncsys#sync-pc:~$ PATH=$JAVA_HOME:$PATH
syncsys#sync-pc:~$ export PATH
syncsys#sync-pc:~$ java -version
The program 'java' can be found in the following packages:
* default-jre
* gcj-4.6-jre-headless
* gcj-4.7-jre-headless
* openjdk-7-jre-headless
* openjdk-6-jre-headless
update :
$ cat /etc/environment
JAVA_HOME="/home/syncsys/bin/jdk1.7.0_10"
PATH="$JAVA_HOME/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games"
syncsys#sync-pc:~$ java -version
The program 'java' can be found in the following packages:
--------(solved) -------- Working sample that is now ok for me.
$ cat /etc/environment JAVA_HOME="/home/syncsys/bin/jdk1.7.0_10" PATH="/home/syncsys/bin/jdk1.7.0_10/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games"
I have read a lot of tutorials and similar forum posts for this but it's not working.
aha! I see the problem...
your JAVA_HOME is correct (if the path is pointing to your JDK, I hope so). The problem is you should change
PATH=$JAVA_HOME:$PATH
into
PATH=$JAVA_HOME/bin:$PATH
because the executable file "java" is not in your JAVA_HOME, it sits in JAVA_HOME/bin
You can install a progam called "galternatives" that will give you a visual representation of your alternatives symlinks to your java binaries.
Of course, you could probably set the JAVA_HOME separately (as an override) in a shell script like so:
JAVA_HOME=/any/location/i/want
export JAVA_HOME
PATH=$JAVA_HOME/bin:$PATH
export PATH
Try in your shell:
export JAVA_HOME=/etc/environment
if working, edit your .bash_profile file and add this line again for every session
I had the same problem, this is my solution:
$] uname -a
Linux ******* x86_64 x86_64 x86_64 GNU/Linux
=> downloading a bin :jdk-6u45-linux-x64.bin
=> In my installation location
$]chmod u+x jdk-6u45-linux-x64.bin
$]./jdk-6u45-linux-x64.bin
...
Done
$]cd jdk1.6.0_45/jre/bin
$]./java -version
java version "1.6.0_45"
Java(TM) SE Runtime Environment (build 1.6.0_45-b06)
Java HotSpot(TM) 64-Bit Server VM (build 20.45-b01, mixed mode)
It works..
1/ check your server configuration
2/ verify the owner of diretories after unpackaging.
2/ use binary pacquage .bin
Regards.
Richy.
Related
Trying to get OpenJDK 17 installed for Pufferpanel. User pi can do java -version fine however Pufferpanel gets bash: java: command not found
My /etc/profile and /etc/profile.d/java.sh have these lines:
#JAVA
export JAVA_HOME="/usr/lib/jvm/jdk-17.0.1+12"
export PATH=$JAVA_HOME/bin:$PATH
In addition JAVA_HOME="/usr/lib/jvm/jdk-17.0.1+12" is set in /etc/environment
Full permissions have been given for java.sh and the JAVA_HOME folder with chmod 777. The user pufferpanel now can run the script however the error stays the same: bash: java: command not found.
Trying some things out and found this:
pufferpanel#raspberrypi:/home/pi$ whereis java
java: /usr/share/java
Meanwhile pi gives this output:
pi#raspberrypi:~ $ whereis java
java: /usr/share/java /usr/lib/jvm/jdk-17.0.1+12/bin/java
Good news is that Java does run as the user pufferpanel:
pufferpanel#raspberrypi:/usr/lib/jvm/jdk-17.0.1+12/bin$ ./java -version
openjdk version "17.0.1" 2021-10-19
OpenJDK Runtime Environment Temurin-17.0.1+12 (build 17.0.1+12)
OpenJDK Server VM Temurin-17.0.1+12 (build 17.0.1+12, mixed mode, sharing)
My guess is that PATH is getting overwritten somewhere, just don't know where.
If there are easier ways to install Java that is higher than version 16 just to get Minecraft to work, please tell me!
What you are doing is fine, but you should probably create a custom.sh shell script in /etc/profile.d/
As for environment variables, like JAVA_HOME, they should go in /etc/environment
Setting the PATH in ~/.bashrc worked out, copied java.sh and pasted it in. Couldn't find ~/.bashrc at first, but this helped to figure that out.
As Pufferpanel is a different matter, I'm marking this the answer to my question which was getting Java to work as an user.
I am working with a Python library in AWS Ubuntu linux that requires Java and apparently a Java plugin: Java Advanced Imaging (JAI) Image I/O Tools:
I installed Java 1.11 and the jdk using:
sudo apt install default-jre
sudo apt install openjdk-11-jdk-headless
and it appears successful:
java -version
produces:
openjdk version "11.0.7" 2020-04-14.1
OpenJDK Runtime Environment (build 11.0.7+10-post-Ubuntu-2ubuntu218.04)
OpenJDK 64-Bit Server VM (build 11.0.7+10-post-Ubuntu-2ubuntu218.04,mixed mode,sharing)
and
javac -version
produces:
java 11.0.7
I then set in the .bashrc the following:
#For Java
export JAVA_HOME=/usr
export PATH=$JAVA_HOME/bin:$PATH
and ran:
source ~/.bashrc
so if I run:
echo $JAVA_HOME
I get:
/usr
Now I am trying to install the advanced imaging tools package sitting in my root folder: jai-1_1_2_01-lib-linux-i586-jre.bin using:
$JAVA_HOME
"bash: /usr: Is a directory"
chmod u+x jai-1_1_2_01-lib-linux-i586-jre.bin
$jai-1_1_2_01-lib-linux-i586-jre.bin
Note the '$' appending the first and fourth line and that the second line is output. I am unable to execute the 4th line at all (autocomplete doesn't work and says command not found).
I couldn't figure out a way to set the $JRE variable, but I am not sure if this is even the correct way to install the Java plugin so I can use it with Python.
I know this is basic stuff, but I just can't put it all together.
Java is an optional package on the latest versions of macOS.
Yet once installed it appears like the JAVA_HOME environment variable is not set properly.
With the Java optional package or Oracle JDK installed,
adding one of the following lines to your ~/.bash_profile file will set the environment variable accordingly.
export JAVA_HOME="$(/usr/libexec/java_home -v 1.6)"
or
export JAVA_HOME="$(/usr/libexec/java_home -v 1.7)"
or
export JAVA_HOME="$(/usr/libexec/java_home -v 1.8)"
or simply
export JAVA_HOME="$(/usr/libexec/java_home)"
Note: If you installed openjdk on mac using brew, run sudo ln -sfn /usr/local/opt/openjdk/libexec/openjdk.jdk /Library/Java/JavaVirtualMachines/openjdk.jdk for the above to work
Update: added -v flag based on Jilles van Gurp response.
/usr/libexec/java_home is not a directory but an executable. It outputs the currently configured JAVA_HOME and doesn't actually change it. That's what the Java Preferences app is for, which in my case seems broken and doesn't actually change the JVM correctly. It does list the 1.7 JVM but I can toggle/untoggle & drag and drop all I want there without actually changing the output of /usr/libexec/java_home.
Even after installing 1.7.0 u6 from Oracle on Lion and setting it as the default in the preferences, it still returned the apple 1.6 java home. The only fix that actually works for me is setting JAVA_HOME manually:
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_06.jdk/Contents/Home/
At least this way when run from the command line it will use 1.7. /usr/libexec/java_home still insists on 1.6.
Update: Understanding Java From Command Line on OSX has a better explanation on how this works.
export JAVA_HOME=`/usr/libexec/java_home -v 1.7`
is the way to do it. Note, updating this to 1.8 works just fine.
For me, Mountain Lion 10.8.2, the solution most voted does not work.
I installed jdk 1.7 via Oracle and maven from homebrew.
My solution is from the hadoop-env.sh file of hadoop which I installed from homebrew, too.
I add the below sentence in ~/.bash_profile, and it works.
export JAVA_HOME="$(/usr/libexec/java_home)"
This solution also works for OS X Yosemite with Java 1.8 installed from Oracle.
None of the above answers helped me. I suppose all the answers are for older OS X
For OS X Yosemite 10.10, follow these steps
Use your favorite text editor to open: ~/.bash_profile
//This command will open the file using vim
$ vim ~/.bash_profile
Add the following line in the file and save it ( : followed by "x" for vim):
export JAVA_HOME=$(/usr/libexec/java_home)
Then in the terminal type the following two commands to see output:
$ source ~/.bash_profile
$ echo $JAVA_HOME
In the second line, you are updating the contents of .bash_profile file.
Update for Java 9 and some neat aliases.
In .bash_profile:
export JAVA_HOME8=`/usr/libexec/java_home --version 1.8`
export JAVA_HOME9=`/usr/libexec/java_home --version 9`
Note, that for the latest version it is 9 and not 1.9.
Set active Java:
export JAVA_HOME=$JAVA_HOME8
export PATH=$JAVA_HOME/bin:$PATH
Some additional alias to switch between the different versions:
alias j8='export JAVA_HOME=$JAVA_HOME8; export PATH=$JAVA_HOME/bin:$PATH'
alias j9='export JAVA_HOME=$JAVA_HOME9; export PATH=$JAVA_HOME/bin:$PATH'
Test in terminal:
% j8
% java -version
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)
% j9
% java -version
java version "9"
Java(TM) SE Runtime Environment (build 9+181)
Java HotSpot(TM) 64-Bit Server VM (build 9+181, mixed mode)
EDIT: Update for Java 10
export JAVA_HOME10=`/usr/libexec/java_home --version 10`
alias j10='export JAVA_HOME=$JAVA_HOME10; export PATH=$JAVA_HOME/bin:$PATH'
EDIT: Update for Java 11
export JAVA_HOME11=`/usr/libexec/java_home --version 11`
alias j11='export JAVA_HOME=$JAVA_HOME11; export PATH=$JAVA_HOME/bin:$PATH'
The above didn't work for me with Amazon's EC2 tools, because it expects bin/java etc. underneath JAVA_HOME. /System/Library/Frameworks/JavaVM.framework/Home did work.
For OS X you can do:
export JAVA_HOME=`/System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java_home`
On Mac OS X Lion, to set visualgc to run, I used:
export JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home
The following worked for me. I'm using ZSH on OSX Yosemite with Java 8 installed.
The following command /usr/libexec/java_home emits the path to JDK home:
/Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home
In your ~/.zshrc,
export JAVA_HOME = "/Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home"
for macOS Mojave 10.14.1 and JAVA 11.0.1
I set the profile as
export JAVA_HOME=$(/usr/libexec/java_home)
key in terminal this to confirm:
$JAVA_HOME/bin/java -version
java version "11.0.1" 2018-10-16 LTS
Java(TM) SE Runtime Environment 18.9 (build 11.0.1+13-LTS)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.1+13-LTS, mixed mode)
A better (more upgradable) way is to use the following:
/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home
This should work with AWS also since it has bin underneath Home
Newer Oracle JVMs such as 1.7.0_21-b12 seem to install here:
/Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin/Contents/Home
My approach is:
.bashrc
export JAVA6_HOME=`/usr/libexec/java_home -v 1.6`
export JAVA7_HOME=`/usr/libexec/java_home -v 1.7`
export JAVA_HOME=$JAVA6_HOME
# -- optional
# export PATH=$JAVA_HOME/bin:$PATH
This makes it very easy to switch between J6 and J7
I Had to explicitly set it to the exact path on my Macbook air .
Steps followed:
try to echo $JAVA_HOME (if it's set it'll show the path), if not, try to search for it using sudo find /usr/ -name *jdk
Edit the Bash p with - sudo nano ~/.bash_profile
Add the exact path to JAVA Home (with the path from step 2 above)
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home
Save and exit
Check JAVA_Home using - echo $JAVA_HOME
I am running MACOS MOJAVE - 10.14.2 (18C54) on a Macbook Air with JAVA 8
OSX Yosemite, ZSH, and Java SE Runtime Environment 8, I had to:
$ sudo ln -s /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands /System/Library/Frameworks/JavaVM.framework/Versions/Current/bin
and in ~/.zshrc change JAVA_HOME to
export JAVA_HOME="/System/Library/Frameworks/JavaVM.framework/Versions/Current"
For Mac OS X 10.9 I installed the latest version of JRE from Oracle and then reset the JAVA_HOME to /Library/Java/JavaVirtualMachines/jdk1.7.0_45.jdk/Contents/Home.
I am sure there is a better way but this got me up and running.
hughsmac:~ hbrien$ echo $JAVA_HOME
/Library/Java/JavaVirtualMachines/jdk1.7.0_45.jdk/Contents/Home
For Java 11 (JDK 11) it can be located with the following command:
/usr/libexec/java_home -v 11
Got the same issue after I upgrade my Mac OS and following worked for me:
cmd>vi ~/.bash_profile
Add/update the line for JAVA_HOME:
export JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk1.7.0_15.jdk/Contents/Home"
cmd>source ~/.bash_profile or open a new terminal
I think the jdk version might differ, so just use the version which you have under /Library/Java/JavaVirtualMachines/
If you are in need to have multiple versions of JDK under Mac OS X (Yosemite), it might be helpful to add some scripting for automated switching between them.
What you do is to edit your ~/.bash_profile and add the following:
function setjdk() {
if [ $# -ne 0 ]; then
removeFromPath '/System/Library/Frameworks/JavaVM.framework/Home/bin'
if [ -n "${JAVA_HOME+x}" ]; then
removeFromPath $JAVA_HOME
fi
export JAVA_HOME=`/usr/libexec/java_home -v $#`
export PATH=$JAVA_HOME/bin:$PATH
fi
}
function removeFromPath() {
export PATH=$(echo $PATH | sed -E -e "s;:$1;;" -e "s;$1:?;;")
}
setjdk 1.7
What the script does is to first remove other JDK versions in the PATH so that they won’t interfere with our new JDK version. Then it makes some clever use of /usr/libexec/java_home which is a command that lists installed JDK versions. The -v argument tells java_home to return the path of the JDK with the supplied version, for example 1.7. We also update the PATH to point to the bin directory of the newly found JAVA_HOME directory. At the end we can simply execute the function using
setjdk 1.7
which selects the latest installed JDK version of the 1.7 branch. To select a specific version you can simply execute
setjdk 1.7.0_51
instead. Run /usr/libexec/java_home -V to get more details on how to choose versions.
P.S. Do not forget to source ~/.bash_profile after you save it.
For Fish terminal users on Mac (I believe it's available on Linux as well), this should work:
set -Ux JAVA_8 (/usr/libexec/java_home --version 1.8)
set -Ux JAVA_12 (/usr/libexec/java_home --version 12)
set -Ux JAVA_HOME $JAVA_8 //or whichever version you want as default
This answer is related to Mountain Lion and not Lion. I needed to do this for the AWS Command Line Tools. According to the AWS docs, running which java returns /usr/bin/java.
So, I set JAVA_HOME=/usr in my .bashrc.
Apparently, /usr/bin/java is a symbolic link to /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java which makes it all work.
Update
As mentioned in the comment below, this JAVA_HOME value is not an ideal solution when the JAVA_HOME environment variable is to be used by things other than the AWS Command Line Tools. It works fine for the AWS Command Line Tools, though, as given in their docs.
for mac user .
java 8 should add
export JAVA_HOME=`/usr/libexec/java_home -v 1.8`
# JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home
java 6 :
export JAVA_HOME=`/usr/libexec/java_home -v 1.6`
# JAVA_HOME=/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
ref :http://qiita.com/seri_k/items/e978c1339ce51f13e297
For Mac Yosemite,
JDK 1.7.0_xx is using
$ ls -ltar /usr/bin/java
/System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java
JAVA_HOME
/Library/Java/JavaVirtualMachines/jdk1.7.0_xx.jdk/Contents/Home
Anyone using AUSKEY from the Australian Tax Office (ATO) should uninstall AUSKEY.
This sorted out my JAVA_HOME issues.
It is also no longer required for MAC users. Yah!
I'm using Fish shell on High Sierra 10.13.4 and installed Java via Brew.
It's not automatically set up so to set it correctly on my system I run:
set -U JAVA_HOME (/usr/libexec/java_home)
Just set java_home of 1.8 jdk version in netbeans.conf file:
/Applications/NetBeans/NetBeans 8.2.app/Contents/Resources/NetBeans/etc/netbeans.conf
uncomment line:
netbeans_jdkhome="path/to/jdk"
and set path to your 1.8 jdk, in my case:
netbeans_jdkhome="/Library/Java/JavaVirtualMachines/jdk1.8.0_121.jdk/Contents/Home"
This approach lays you to have several jdk versions on mac os
Handy command for knowing java home and other details.
java -XshowSettings:properties -version
and to know all java homes on your mac:
/usr/libexec/java_home -V
The version of Java I have installed on my machine is:
java version "1.6.0_24"
OpenJDK Runtime Environment (IcedTea6 1.11.11.90) (amazon-62.1.11.11.90.55.amzn1-x86_64)
OpenJDK 64-Bit Server VM (build 20.0-b12, mixed mode)
To set the path of JAVA_HOME, I wrote the following command in the ~/.bashrc file:
export JAVA_HOME=/usr/lib/jvm/default-java/
The command echo $JAVA_HOME gives the output /usr/lib/jvm/jre. I am assuming this is the wrong path, or am I wrong ?
And these are the files I have in the directory /usr/lib/jvm
java-1.6.0-openjdk-1.6.0.0.x86_64
jre
jre-1.6.0
jre-1.6.0-openjdk.x86_64
jre-openjdk
You should try doing the same using ~/.bash_profile , and ~/.profile as well... Then logoff and login, and see if it works using java --version
If files don't exist, then create them, add the export, and give them execution permissions using chmod +x .profile .bash_profile
It seems that maybe default-java is a symbolic link to all versions of java installed on your machine. Have you tried setting it to a specific java jdk bin?
export JAVA_HOME=/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/
Check your javac program path using:
whereis javac
In debian based distributions use
sudo update-alternatives --display javac
To find out where your javac program resides, also (if you have several jdk's installed) update-alternatives lets you change the default javac
Update your JAVA_HOME in your ~/.bashrc and then type: source ~/.bashrc, then print again echo $JAVA_HOME, the change should apply immediately
Java is an optional package on the latest versions of macOS.
Yet once installed it appears like the JAVA_HOME environment variable is not set properly.
With the Java optional package or Oracle JDK installed,
adding one of the following lines to your ~/.bash_profile file will set the environment variable accordingly.
export JAVA_HOME="$(/usr/libexec/java_home -v 1.6)"
or
export JAVA_HOME="$(/usr/libexec/java_home -v 1.7)"
or
export JAVA_HOME="$(/usr/libexec/java_home -v 1.8)"
or simply
export JAVA_HOME="$(/usr/libexec/java_home)"
Note: If you installed openjdk on mac using brew, run sudo ln -sfn /usr/local/opt/openjdk/libexec/openjdk.jdk /Library/Java/JavaVirtualMachines/openjdk.jdk for the above to work
Update: added -v flag based on Jilles van Gurp response.
/usr/libexec/java_home is not a directory but an executable. It outputs the currently configured JAVA_HOME and doesn't actually change it. That's what the Java Preferences app is for, which in my case seems broken and doesn't actually change the JVM correctly. It does list the 1.7 JVM but I can toggle/untoggle & drag and drop all I want there without actually changing the output of /usr/libexec/java_home.
Even after installing 1.7.0 u6 from Oracle on Lion and setting it as the default in the preferences, it still returned the apple 1.6 java home. The only fix that actually works for me is setting JAVA_HOME manually:
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_06.jdk/Contents/Home/
At least this way when run from the command line it will use 1.7. /usr/libexec/java_home still insists on 1.6.
Update: Understanding Java From Command Line on OSX has a better explanation on how this works.
export JAVA_HOME=`/usr/libexec/java_home -v 1.7`
is the way to do it. Note, updating this to 1.8 works just fine.
For me, Mountain Lion 10.8.2, the solution most voted does not work.
I installed jdk 1.7 via Oracle and maven from homebrew.
My solution is from the hadoop-env.sh file of hadoop which I installed from homebrew, too.
I add the below sentence in ~/.bash_profile, and it works.
export JAVA_HOME="$(/usr/libexec/java_home)"
This solution also works for OS X Yosemite with Java 1.8 installed from Oracle.
None of the above answers helped me. I suppose all the answers are for older OS X
For OS X Yosemite 10.10, follow these steps
Use your favorite text editor to open: ~/.bash_profile
//This command will open the file using vim
$ vim ~/.bash_profile
Add the following line in the file and save it ( : followed by "x" for vim):
export JAVA_HOME=$(/usr/libexec/java_home)
Then in the terminal type the following two commands to see output:
$ source ~/.bash_profile
$ echo $JAVA_HOME
In the second line, you are updating the contents of .bash_profile file.
Update for Java 9 and some neat aliases.
In .bash_profile:
export JAVA_HOME8=`/usr/libexec/java_home --version 1.8`
export JAVA_HOME9=`/usr/libexec/java_home --version 9`
Note, that for the latest version it is 9 and not 1.9.
Set active Java:
export JAVA_HOME=$JAVA_HOME8
export PATH=$JAVA_HOME/bin:$PATH
Some additional alias to switch between the different versions:
alias j8='export JAVA_HOME=$JAVA_HOME8; export PATH=$JAVA_HOME/bin:$PATH'
alias j9='export JAVA_HOME=$JAVA_HOME9; export PATH=$JAVA_HOME/bin:$PATH'
Test in terminal:
% j8
% java -version
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)
% j9
% java -version
java version "9"
Java(TM) SE Runtime Environment (build 9+181)
Java HotSpot(TM) 64-Bit Server VM (build 9+181, mixed mode)
EDIT: Update for Java 10
export JAVA_HOME10=`/usr/libexec/java_home --version 10`
alias j10='export JAVA_HOME=$JAVA_HOME10; export PATH=$JAVA_HOME/bin:$PATH'
EDIT: Update for Java 11
export JAVA_HOME11=`/usr/libexec/java_home --version 11`
alias j11='export JAVA_HOME=$JAVA_HOME11; export PATH=$JAVA_HOME/bin:$PATH'
The above didn't work for me with Amazon's EC2 tools, because it expects bin/java etc. underneath JAVA_HOME. /System/Library/Frameworks/JavaVM.framework/Home did work.
For OS X you can do:
export JAVA_HOME=`/System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java_home`
On Mac OS X Lion, to set visualgc to run, I used:
export JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home
The following worked for me. I'm using ZSH on OSX Yosemite with Java 8 installed.
The following command /usr/libexec/java_home emits the path to JDK home:
/Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home
In your ~/.zshrc,
export JAVA_HOME = "/Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home"
for macOS Mojave 10.14.1 and JAVA 11.0.1
I set the profile as
export JAVA_HOME=$(/usr/libexec/java_home)
key in terminal this to confirm:
$JAVA_HOME/bin/java -version
java version "11.0.1" 2018-10-16 LTS
Java(TM) SE Runtime Environment 18.9 (build 11.0.1+13-LTS)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.1+13-LTS, mixed mode)
A better (more upgradable) way is to use the following:
/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home
This should work with AWS also since it has bin underneath Home
Newer Oracle JVMs such as 1.7.0_21-b12 seem to install here:
/Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin/Contents/Home
My approach is:
.bashrc
export JAVA6_HOME=`/usr/libexec/java_home -v 1.6`
export JAVA7_HOME=`/usr/libexec/java_home -v 1.7`
export JAVA_HOME=$JAVA6_HOME
# -- optional
# export PATH=$JAVA_HOME/bin:$PATH
This makes it very easy to switch between J6 and J7
I Had to explicitly set it to the exact path on my Macbook air .
Steps followed:
try to echo $JAVA_HOME (if it's set it'll show the path), if not, try to search for it using sudo find /usr/ -name *jdk
Edit the Bash p with - sudo nano ~/.bash_profile
Add the exact path to JAVA Home (with the path from step 2 above)
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home
Save and exit
Check JAVA_Home using - echo $JAVA_HOME
I am running MACOS MOJAVE - 10.14.2 (18C54) on a Macbook Air with JAVA 8
OSX Yosemite, ZSH, and Java SE Runtime Environment 8, I had to:
$ sudo ln -s /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands /System/Library/Frameworks/JavaVM.framework/Versions/Current/bin
and in ~/.zshrc change JAVA_HOME to
export JAVA_HOME="/System/Library/Frameworks/JavaVM.framework/Versions/Current"
For Mac OS X 10.9 I installed the latest version of JRE from Oracle and then reset the JAVA_HOME to /Library/Java/JavaVirtualMachines/jdk1.7.0_45.jdk/Contents/Home.
I am sure there is a better way but this got me up and running.
hughsmac:~ hbrien$ echo $JAVA_HOME
/Library/Java/JavaVirtualMachines/jdk1.7.0_45.jdk/Contents/Home
For Java 11 (JDK 11) it can be located with the following command:
/usr/libexec/java_home -v 11
Got the same issue after I upgrade my Mac OS and following worked for me:
cmd>vi ~/.bash_profile
Add/update the line for JAVA_HOME:
export JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk1.7.0_15.jdk/Contents/Home"
cmd>source ~/.bash_profile or open a new terminal
I think the jdk version might differ, so just use the version which you have under /Library/Java/JavaVirtualMachines/
If you are in need to have multiple versions of JDK under Mac OS X (Yosemite), it might be helpful to add some scripting for automated switching between them.
What you do is to edit your ~/.bash_profile and add the following:
function setjdk() {
if [ $# -ne 0 ]; then
removeFromPath '/System/Library/Frameworks/JavaVM.framework/Home/bin'
if [ -n "${JAVA_HOME+x}" ]; then
removeFromPath $JAVA_HOME
fi
export JAVA_HOME=`/usr/libexec/java_home -v $#`
export PATH=$JAVA_HOME/bin:$PATH
fi
}
function removeFromPath() {
export PATH=$(echo $PATH | sed -E -e "s;:$1;;" -e "s;$1:?;;")
}
setjdk 1.7
What the script does is to first remove other JDK versions in the PATH so that they won’t interfere with our new JDK version. Then it makes some clever use of /usr/libexec/java_home which is a command that lists installed JDK versions. The -v argument tells java_home to return the path of the JDK with the supplied version, for example 1.7. We also update the PATH to point to the bin directory of the newly found JAVA_HOME directory. At the end we can simply execute the function using
setjdk 1.7
which selects the latest installed JDK version of the 1.7 branch. To select a specific version you can simply execute
setjdk 1.7.0_51
instead. Run /usr/libexec/java_home -V to get more details on how to choose versions.
P.S. Do not forget to source ~/.bash_profile after you save it.
For Fish terminal users on Mac (I believe it's available on Linux as well), this should work:
set -Ux JAVA_8 (/usr/libexec/java_home --version 1.8)
set -Ux JAVA_12 (/usr/libexec/java_home --version 12)
set -Ux JAVA_HOME $JAVA_8 //or whichever version you want as default
This answer is related to Mountain Lion and not Lion. I needed to do this for the AWS Command Line Tools. According to the AWS docs, running which java returns /usr/bin/java.
So, I set JAVA_HOME=/usr in my .bashrc.
Apparently, /usr/bin/java is a symbolic link to /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java which makes it all work.
Update
As mentioned in the comment below, this JAVA_HOME value is not an ideal solution when the JAVA_HOME environment variable is to be used by things other than the AWS Command Line Tools. It works fine for the AWS Command Line Tools, though, as given in their docs.
for mac user .
java 8 should add
export JAVA_HOME=`/usr/libexec/java_home -v 1.8`
# JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home
java 6 :
export JAVA_HOME=`/usr/libexec/java_home -v 1.6`
# JAVA_HOME=/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
ref :http://qiita.com/seri_k/items/e978c1339ce51f13e297
For Mac Yosemite,
JDK 1.7.0_xx is using
$ ls -ltar /usr/bin/java
/System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java
JAVA_HOME
/Library/Java/JavaVirtualMachines/jdk1.7.0_xx.jdk/Contents/Home
Anyone using AUSKEY from the Australian Tax Office (ATO) should uninstall AUSKEY.
This sorted out my JAVA_HOME issues.
It is also no longer required for MAC users. Yah!
I'm using Fish shell on High Sierra 10.13.4 and installed Java via Brew.
It's not automatically set up so to set it correctly on my system I run:
set -U JAVA_HOME (/usr/libexec/java_home)
Just set java_home of 1.8 jdk version in netbeans.conf file:
/Applications/NetBeans/NetBeans 8.2.app/Contents/Resources/NetBeans/etc/netbeans.conf
uncomment line:
netbeans_jdkhome="path/to/jdk"
and set path to your 1.8 jdk, in my case:
netbeans_jdkhome="/Library/Java/JavaVirtualMachines/jdk1.8.0_121.jdk/Contents/Home"
This approach lays you to have several jdk versions on mac os
Handy command for knowing java home and other details.
java -XshowSettings:properties -version
and to know all java homes on your mac:
/usr/libexec/java_home -V