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.
Windows 10
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
?
java in not listed in the appsinstallation folderJAVA_HOMEPATH
21 Answer
OS-50101, I would recommend you to first look for the Java Mission Control app on your computer, from there you will be able to easily enable and disable the different jre's and jdk's, to manually uninstall it, even though it's not recommended, I would literally go to the JDK12 folder and delete it.
You could then go to Edit the system environment variables under your Control Panel and if the JAVA_HOME is defined, you can edit it and change it to the path for the JDK8.
Also, if not already present, check your PATH variable and make sure that the reference to the %JAVA_HOME%\bin; is also there. Once that's done, a quick restart of the cmd, should give you a different result using java -v
