Should_java_home_have_bin_dir_under_it_always

Does JAVA_8_HOME should always have 'bin/java' under it?

${JAVA_8_HOME}/bin/java

ChatGPT

Yes, if ${JAVA_8_HOME} is properly set to the root directory of a Java 8 JDK installation, then you should expect the bin/java executable to be present under it. Here's an explanation:

• ${JAVA_8_HOME} is an environment variable that points to the root directory of the Java 8 JDK installation.
• Under any JDK installation directory, there's a bin folder. This folder contains several executables related to Java, such as java, javac, javadoc, etc.

So, if you set ${JAVA_8_HOME} to the correct directory of your Java 8 JDK installation, then ${JAVA_8_HOME}/bin/java should be the full path to the java executable.

To verify this on your MacOS with Bash shell, you can use the following command:

if [[ -f "${JAVA_8_HOME}/bin/java" ]]; then
    echo "The java executable exists under ${JAVA_8_HOME}/bin/"
else
    echo "The java executable does not exist under ${JAVA_8_HOME}/bin/"
fi

This script checks the existence of the java executable under the given ${JAVA_8_HOME}/bin/ directory and provides feedback accordingly.