Sorry my bad English.
I compiled a Java app using "Eclipse Java 2020-06", as JDK I used "OpenJDK 8".
To install the OpenJDK I used the "AdoptOpenJDK" site (https://adoptopenjdk.net/).
The app that I developed with "Eclipse Java 2020-06" I would like to sell it, I am creating an e-commerce site for
Unlike JDK, is OpenJDK ALWAYS free? Any version?
Customers who buy my app must download (always from "AdoptOpenJDK") a JRE, they also don't have to pay
nothing to Oracle, is it so?