Wrong JAVA_HOME after upgrade to macOS Big Sur v11.0.1

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Wrong JAVA_HOME after upgrade to macOS Big Sur v11.0.1

  1. Wrong JAVA_HOME after upgrade to macOS Big Sur v11.0.1

    Seems in macOS Big Sur v11.0.1 the behavior of the /usr/libexec/java_home -v ... command has changed: it is sensitive to the previously set value of JAVA_HOME environment variable.
    Exact behavior is not clear, I couldn't find any documentation on this, but in my experiments it reported the version already set in JAVA_HOME, regardless of the -v switch:
    % JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_45.jdk/Contents/Home /usr/libexec/java_home -v 1.8.0_162 /Library/Java/JavaVirtualMachines/jdk1.7.0_45.jdk/Contents/Home

  2. Wrong JAVA_HOME after upgrade to macOS Big Sur v11.0.1

    Seems in macOS Big Sur v11.0.1 the behavior of the /usr/libexec/java_home -v ... command has changed: it is sensitive to the previously set value of JAVA_HOME environment variable.
    Exact behavior is not clear, I couldn't find any documentation on this, but in my experiments it reported the version already set in JAVA_HOME, regardless of the -v switch:
    % JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_45.jdk/Contents/Home /usr/libexec/java_home -v 1.8.0_162 /Library/Java/JavaVirtualMachines/jdk1.7.0_45.jdk/Contents/Home

Solution 1

Seems in macOS Big Sur v11.0.1 the behavior of the /usr/libexec/java_home -v ... command has changed: it is sensitive to the previously set value of JAVA_HOME environment variable.

Exact behavior is not clear, I couldn’t find any documentation on this, but in my experiments it reported the version already set in JAVA_HOME, regardless of the -v switch:

% JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_45.jdk/Contents/Home /usr/libexec/java_home -v 1.8.0_162
/Library/Java/JavaVirtualMachines/jdk1.7.0_45.jdk/Contents/Home

Additionally, I noticed that it reports nothing, if JAVA_HOME is set, but doesn’t point to a valid java home (also for -V):

% JAVA_HOME=dummy /usr/libexec/java_home -v 1.7.0_45
% JAVA_HOME=dummy /usr/libexec/java_home -V
%

Solution is to ensure JAVA_HOME is not set before executing /usr/libexec/java_home:

% unset JAVA_HOME ; /usr/libexec/java_home -v 1.8.0_162
/Library/Java/JavaVirtualMachines/jdk1.8.0_162.jdk/Contents/Home

Original Author edited Nov 19, 2020 at 18:58 Of This Content

Solution 2

I have Big Sur 11.2.1 from 18.02.2021. I had the same issue with JAVA_HOME path configuration. After reading a lot of information I solved my problem with next:

Install JDK 8: https://www.oracle.com/java/technologies/javase/javase-jdk8-downloads.html
Java SE Development Kit 8u281

Install it as usual on your MacOS Big Sur.

Check JDK version:

java -version
java version "1.8.0_281"
Java(TM) SE Runtime Environment (build 1.8.0_281-b09)
Java HotSpot(TM) 64-Bit Server VM (build 25.281-b09, mixed mode)

Check what versions of JDK are already installed on your machine:

/usr/libexec/java_home -V 
Matching Java Virtual Machines (2):
    1.8.281.09 (x86_64) "Oracle Corporation" - "Java" /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home
    1.8.0_281 (x86_64) "Oracle Corporation" - "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_281.jdk/Contents/Home
/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home

Get only one that you need:

/usr/libexec/java_home -v 1.8.0_281
/Library/Java/JavaVirtualMachines/jdk1.8.0_281.jdk/Contents/Home

On Catalina and Big Sur – there is Z-shell , to add Environment variables like JAVA_HOME there are two files for that: ~/.zshenv and ~/.zshrc, I couldn’t make it work with first one. It worked for me like this:

nano ~/.zshrc

Add to that file this line:

export JAVA_HOME=$(/usr/libexec/java_home -v 1.8.0_281)

Press Ctrl+X and save changes.

Then run command to apply that changes to current terminal:

source ~/.zshrc

After that you can check if everything is working with command:

echo $JAVA_HOME
it will print you: /Library/Java/JavaVirtualMachines/jdk1.8.0_281.jdk/Contents/Home

Restart your terminal and programs which will be using JAVA_HOME variable. For me it was Android Studio. Now everything works fine.
I am new to Mac OS and it took me with 4hours to solve this. With Windows it’s just done in a minute:)

Original Author Of This Content

Solution 3

As I tryed. I just delete the /Library/Internet Plug-Ins/JavaAppletPlugin.plugin and relogin. Then everything works fine.

Original Author Of This Content

Solution 4

For me https://developer.apple.com/forums/thread/666681 worked after spending so much time on the solutions.

I simply call following commands

sudo rm -fr /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin

sudo rm -fr /Library/PreferencePanes/JavaControlPanel.prefpane

Original Author Of This Content

Conclusion

So This is all About This Tutorial. Hope This Tutorial Helped You. Thank You.

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Siddharth

I am an Information Technology Engineer. I have Completed my MCA And I have 4 Year Plus Experience, I am a web developer with knowledge of multiple back-end platforms Like PHP, Node.js, Python and frontend JavaScript frameworks Like Angular, React, and Vue.

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