others-how to solve 'Unable to find any JVMs matching version' when openning a terminal window in MacOS?

May 7, 2021

1. Purpose

In this post, I would demo how to solve the below error when we openning a terminal window in MacOS

Unable to find any JVMs matching version "1.6".

2. Environment

Mac OS 10.15
Java 1.8

3. The solution

3.1 What does this error mean?

Check the local java installation by running the following command:

$ 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)

This error indicates that there should be a java 1.6 in my system, but it does not.

3.2 Solution #1

Install the specified java version for your system(Just choose from one of the following commands)

brew tap caskroom/versions
brew cask install java6 # for jdk6
brew cask install java7 # for jdk7
brew cask install java8 # for jdk8

3.3 Solution #2

If you don’t want to install the specified java version in your system, you can just remove all the references of it from such files:

~/.bash_profile
~/.zshrc
/etc/profile

In my case, I removed the following references as follows:

#export JAVA_6_HOME=$(/usr/libexec/java_home -v1.6)
#alias java6='export JAVA_HOME=$JAVA_6_HOME'

And then restart the terminal, the warning message disappears.

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Now it works!

4. Summary

In this post, I demonstrated how to solve ‘Unable to find any JVMs matching version’ error when openning a terminal window in MacOS.