Where is JAVA HOME on macOS Mojave 10 14 to Lion 10 7

Question

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

User · Answer

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

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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

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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

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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

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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  amp  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

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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

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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

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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

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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

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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

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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

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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

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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

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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 got me up and running    hughsmac   hbrien  echo  JAVA HOME  Library Java JavaVirtualMachines jdk1 7 0 45 jdk Contents Home

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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

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For OS X you can do   export JAVA HOME   System Library Frameworks JavaVM framework Versions Current commands java home

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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

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Newer Oracle JVMs such as 1 7 0 21-b12 seem to install here    Library Internet  Plug-Ins JavaAppletPlugin plugin Contents Home

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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

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For Java 11  JDK 11  it can be located with the following command    usr libexec java home -v 11

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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

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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

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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

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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

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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

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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  quot    usr libexec java home -v 1 6  quot  or export JAVA HOME  quot    usr libexec java home -v 1 7  quot  or export JAVA HOME  quot    usr libexec java home -v 1 8  quot  or simply export JAVA HOME  quot    usr libexec java home  quot   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

[java] Where is JAVA_HOME on macOS Mojave (10.14) to Lion (10.7)?

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