How to Set JAVA_HOME on macOS Mojave (10.14) to Lion (10.7)?

Setting JAVA_HOME on macOS Mojave (10.14) to Lion (10.7)

The installation of Java on recent macOS versions requires additional configuration to set the JAVA_HOME environment variable correctly.

In the absence of a JAVA_HOME setting, add the appropriate line from the following options to your ~/.bash_profile file:

export JAVA_HOME="$(/usr/libexec/java_home -v 1.6)"
export JAVA_HOME="$(/usr/libexec/java_home -v 1.7)"
export JAVA_HOME="$(/usr/libexec/java_home -v 1.8)"
export JAVA_HOME="$(/usr/libexec/java_home)"

Note that you may need to run sudo ln -sfn /usr/local/opt/openjdk/libexec/openjdk.jdk /Library/Java/JavaVirtualMachines/openjdk.jdk if you installed openjdk via brew.

Additionally, include the -v flag as suggested by Jilles van Gurp for improved accuracy.

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