JAVA_HOME should point to a JDK not a JRE

I am trying to set up maven for my project and I am getting this error

"JAVA_HOME should point to a JDK not a JRE"

I know there are already similar question but it did not work. How can I point JAVA_HOME to JDK in windows. I am using IntelliJ IDEA

Control Panel -> System and Security -> System -> Advanced system settings -> Advanced -> Environment Variables -> New System Variable

I am going through the same process on Mac OSX. I installed the latest JDK, then installed Maven. Someone suggested I set the JAVA_HOME variable so I pointed it to the JDK installation folder. When running Maven mvn compile exec:java I received the same error NB: JAVA_HOME should point to a JDK not a JRE.

All I did was unset the JAVA_HOME variable and it worked.