If a client asks if there is a "license change with Oracle and that in order to use it for the Point of Sale software a paid license is needed." please see the response.
"The Java JRE (Java Runtime Environment) is free.
That's what our users need on their machines to run our program.
POS don't need.
The JDK (Java Developer Kit) is the program which costs money. That is what developers would have to pay for to use newer versions of Java.
So there will never be any fees charged to our end users to have the JRE on their machines in order to run our POS app."