adds support for building the model of a program for which the classpath is incomplete

lolwat? You drop the exception stack, because **you** think it's easier to understand while totally ignoring the developers trying to debug potential bugs?
It seems like you're making a lot of assumtions based on your personal opinions.
IDEs usually mark this as a "bug" and from what I've learned over the years dropping the exception context tends to be an horrible mistake.