Hi,
Since I have plan to upgrade QuickBuild from 11 to 15, I started to build QuickBuild 15 source code on my Ubuntu.
I tried to build with 'openjdk-21 (Java 21)' but I got an error which is related to 'xmltask' library.
Even I solved the problem, 'javadoc' related issues are still remained.
So I turned off 'javadoc' in 'build.xml' then finally succeeded.
However, the build with 'openjdk-11 (Java 11)' is fine with original source code.

So, I would like to know which Java version had been picked for your compilation test.
Please let me know which Java version should I pick to build QuickBuild 15 source code.

One more question.
Is it okay to run binary which compiled with 'Java 11' on 'Java 21'?