There are various instances of this issue that we get such as JAVAC’, JRE, ‘MVN’, JAR’ is not recognized as an internal or external command, operable program or batch file, ‘Java’ is ...

To install Java 17, open a terminal window and issue this command: sudo apt-get install openjdk-17-jdk openjdk-17-jre -y. ... The system will set Java 18 as the current version.