Netbeans 无法在 MacOS Big Sur 上安装

Question

I have installed Big Sur on my MacBook Air. Java is installed but Netbeans install says no Java JDK found. Did anybody has the solution for this issue?

Answer 1

Here's how I resolved it. From the command line, I ran:

/usr/libexec/java_home -V

This will output the Java VMs you have installed:

Matching Java Virtual Machines (4):
    14.0.1 (x86_64) "UNDEFINED" - "OpenJDK 14.0.1" /usr/local/Cellar/openjdk/14.0.1/libexec/openjdk.jdk/Contents/Home
    1.8.271.09 (x86_64) "Oracle Corporation" - "Java" /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home
    1.8.0_271 (x86_64) "Oracle Corporation" - "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_271.jdk/Contents/Home
    1.8.0_251 (x86_64) "Oracle Corporation" - "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_251.jdk/Contents/Home

If you don't see JDK 1.8, then you should go to Oracle.com and install it. Assuming you have 1.8, you should set that as your JAVA_HOME with the following command:

export JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk1.8.0_271.jdk/Contents/Home"

Note that your location may be slightly different from mine, you should use the location for 1.8 that was present in your list of VMs when you ran /usr/libexec/java_home -V , above. I would also recommend you add this to your shell profile so that the current JAVA_HOME is set the next time you reopen your shell. I'm using ZSH as my shell, so the command was:

echo 'export JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk1.8.0_271.jdk/Contents/Home"' >> ~/.zshrc

Now you're almost home. Just make sure you have Homebrew and then run brew cask install netbeans .

That should enable you to install it without issue and will place it in your Applications folder.

Answer 2

I solved it by installing JDK15 and Apache Netbeans 12.2 (Only 12.2).

It works well.

Answer 3

Same here, it is because Big Sur update have erased $JAVA_HOME. echo $JAVA_HOME is empty and you cannot redirect to.bash_profile. Maybe Big Sur updates will fix this. I am waiting/searching for an answer myself. Not about to downgrade to Catalina just yet

Answer 4

I resolved my problem like this and it worked out wonderfully:

Issue:
When I executed Netbeans through command line in verbose mode, I saw the following error ./netbeans -v
The operation couldn't be completed. Unable to locate a Java Runtime that supports (null). Please visit http://www.java.com for information on installing Java.

Solution:
Edit netbeans.conf file
vi /Applications/NetBeans/NetBeans\ 8.2.app/Contents/Resources/NetBeans/etc/netbeans.conf
Look for netbeans_jdkhome variable, uncomment it and substitute it appropriately. In my case the setting was:
netbeans_jdkhome="/Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home"

Once you have done that, you can start Netbeans normally using the Netbeans shortcut or by using the command line.