Mac The operation couldn’t be completed. Unable to locate a Java Runtime that supports jarsigner

Question

My purpose is to use jarsigner to sign apk.

I get the following prompt：

% jarsigner     
The operation couldn’t be completed. Unable to locate a Java Runtime that supports jarsigner.
Please visit http://www.java.com for information on installing Java.

my java version hint：

% java -version
java version "1.8.0_321"
Java(TM) SE Runtime Environment (build 1.8.0_321-b07)
Java HotSpot(TM) 64-Bit Server VM (build 25.321-b07, mixed mode)

Mac version is 11.6.3

How can I solve this problem please?

Curling

I use (and recommend) SDKMAN to manage my Java environments. – Catnap

I think you installed jre instead of jdk – Moneychanger

Or the environment variables are incorrectly configured. The jarsigner is in JAVA_HOME/bin. – Moneychanger

my jarsigner location is here % whereis jarsigner /usr/bin/jarsigner – Curling

How to determine if jdk is installed? – Curling

Answer 1

I finally solved it by downloading the JDK

Curling

I used this link to avoid having to create an account with oracle but this worked for me too. oracle.com/java/technologies/downloads/#jdk18-mac – Radiance

Do I need to do something more to make it work? I have installed it but it doesn't work? Should I deactivate the virtual environment? Thanks – Jarrell

Answer 2

Mac users, follow the below steps:

1. brew install openjdk@11
   

2. For the system Java wrappers to find this JDK, symlink it with:

   sudo ln -sfn $(brew --prefix)/opt/openjdk@11/libexec/openjdk.jdk /Library/Java/JavaVirtualMachines/openjdk-11.jdk
   

Reference: https://formulae.brew.sh/formula/openjdk@11

This approach will also work for other versions.

Cheesecloth

You shouldn't need to symlink. Most programs respect JAVA_HOME env-var – Schreiber

It's an alternate way to point Java to correct JDK. For me, first time setup with brew required me to execute symlink. Second scenario, in case you have multiple Java JDK, symlink to switch to correct JDK also works. – Cheesecloth

symlink command needed in MacOS – Vouge

Answer 3

You need to check jdk version which installed to our system. This example is for mac os with m1.

Enter in your terminal:

java -version

Output:

openjdk version "1.8.0_372"
OpenJDK Runtime Environment (Zulu 8.70.0.23-CA-macos-aarch64) (build 1.8.0_372-b07)
OpenJDK 64-Bit Server VM (Zulu 8.70.0.23-CA-macos-aarch64) (build 25.372-b07, mixed mode)

Then input the commands:

1. sudo ln -sfn /opt/homebrew/opt/openjdk/libexec/openjdk.jdk /Library/Java/JavaVirtualMachines/openjdk.jdk

2. echo 'export PATH="/opt/homebrew/opt/openjdk/bin:$PATH"' >> ~/.zshrc or ~/.bashrc

3. export CPPFLAGS="-I/opt/homebrew/opt/openjdk/include"

It worked for me

Gallon

I did the same thing ans still I have same error – Aristotelianism

This actually worked, and now Xcode is happy to build the Kotlin Multiplatform project. – Nucleotidase