Difference between java.home and JAVA_HOME

Question

In my java code, I have this line System.getProperty(\"java.home\"). In some environments, this returns the same value as what has been set JAVA_HOME

Answer 1

According to Oracle documentation java.home is a system property that represents the installation directory of Java Runtime Environment. JAVA_HOME is an environment variable - not a system property. Please refer to this post to check what is the difference between system property and environment variable.

You can also refer to this post to learn more about JAVA_HOME.