The release of Eclipse GlassFish 5.1 is an important milestone for Jakarta EE!
First of all, it is a confirmation that the GlassFish source code contributed by Oracle is possible to build and assemble on Eclipse Infrastructure.
Second, by passing the Java EE 8 Compatibility tests, it verifies that the code contributed follows the Java EE 8 specifications, hence is Java EE 8 Compatible.
Download Eclipse GlassFish 5.1 and give it a try!
And while you’re at it, why don’t you try it out with Apache NetBeans as I have shown below.