These Java classes are internal to Matlab, are unsupported and undocumented. To the best of my knowledge, the only location that describes them to some degree is my book "Undocumented Secrets of Matlab-Java Programming" (CRC Press, 2011). Note that this book was written almost a decade ago, so some things are outdated (most of the content is still relevant in R2019b though). If you are only interested in uitable customizations, you can refer to section 4.1 of the book, or to a more expanded coverage in my uitable customization report. Note that I do not cover asd.* classes in either of these resources - I only discuss relevant com.mathworks.* and com.jidesoft.* classes.