I need to replace JDK 12 with JDK 8. However, I cannot figure out how to uninstall it. I searched a lot through the internet and everywhere they recommend just to use the common uninstall via apps. But JDK12 is not listed there. There was listed java 8 but it was the JRE. Also, for the installation, it is recommended to add JAVA_HOME variable and add Path to the bin/. As the JDK wasn't installed by me I wasn't sure it was done. So I did this procedure, but the JDK still isn't listed in the apps but available form the command line.
java -version openjdk version "12.0.2" 2019-07-16 OpenJDK Runtime Environment Adopt OpenJDK (build 12.0.2+10) OpenJDK 64-Bit Server VM Adopt OpenJDK (build 12.0.2+10, mixed mode, sharing)
Originally, the question came from the another issue.
UPDATE 11.09.2019: Here are the newest screenshots. @Tiago Carneiro: where can I find the
Java Mission Control app