If you're doing Jakarta EE 9 development, you'll need to install JDK 11. Java 8 simply won't cut it. And the best way to install JDK 11 on Windows? It's to use the AdoptOpenJDK distribution. The msi file makes it easy to not only install the LTS release, but also set JAVA_HOME and add the JDK 11 bin directory to the Windows PATH. With that done, you're well set up to install Eclipse, configure Tomcat, and develop all of the Jakarta EE components you desire, be it Servlets, JSPs, JavaServer Faces components or RESTful APIs. When you're done with this 'install JDK 11 example,' they world of bytecode development is your oyster.
