Netbean 26 not recognizing JDKs when I select the platform folder in Windows 11

[scaddenp]

I am transferring to a new computer and installed netbeans 26. I have microsoft openjdk 21 installed and I have been able to build and run a project with this combination. However, I have projects using a number of JDKs so I copied the directory of JDKs from my old computer to the new one. However, when I try Tools|Java Platforms, Add Platform, and then select any of JDK directories, it does not appear to recognize the directory as containing a JDK - the Next button remains greyed out. This work fine on Netbeans 23 on my old computer with the same set of directories