Recently I wrote about Netbeans IDE development status
and I never thought that actively developed project like Eclise IDE would be so slow in implementing Java 14 support.
This is definitely slowpoke pace look at this release info page.
Java 14 support only planned for future release in June 17, 2020.
Even Netbeans IDE was able to ship this feature to March 1, 2020.
P.S. After all Netbeans IDE does not look as a complete zombie project to me.