primer for writing Java 9 taglets

[Rick Hillegas]

Hey folks,

Is there a primer for writing Java 9 Taglets which is similar to the 
primer for writing old-style Taglets found here: 
http://docs.oracle.com/javase/7/docs/technotes/guides/javadoc/taglet/overview.html. 
I am trying to get a clean, warning-free build of Apache Derby using 
b124 of JDK 9. In order to do this, I need to eliminate the doclet 
deprecation warnings introduced by b124.

Thanks,
-Rick