lib/dt.jar

[Jesse Glick]

This JAR seems to have been dropped from Jigsaw builds, at least mine; perhaps jdk/make/javax/swing/beaninfo/Makefile was never called. Anyway this horrible makefile 
could probably be replaced with a 269-based processor (*).

Where should classes like javax.swing.JTableBeanInfo go? More generally, how will java.beans.Introspector's search path work under Jigsaw, especially in "design-time" mode?

(*) Which leads me to another question which I will post separately.