The latest information that I can find for JBDS is:
https://access.redhat.com/documentation/en-US/Red_Hat_JBoss_Developer_Studio/9.1-Beta1/html/Install_Red_Hat_JBoss_Developer_Studio/System_Requirements.html
This is not adequate for the CDK, etc.
JBDS-3712 Define minimum system requirements for the all-in-1 installer
JBDS-3807 Create detailed-description and manual-instructions for devplatform installer exe in CSP