Since two years JomaSoft produces Solaris 11.4 IPS packages
of opensource software. After postgres now openjdk was added.
Based on the work done by Peter Tribble. Thanks Peter!
https://github.com/ptribble/jdk-sunos-builder
Download Page
https://www.jomasoft.ch/downloads/#js-openjdk
Direct p5p Download Link
https://bit.ly/js-openjdk17-sparc
The package is provided without support or warranty.
Use at your own risk.