testing the -target option

[Alan Snyder]

I’m curious to know how the javac -target option is tested. I can think of several possibilities, but am wondering what actually is done.

(I did not find any discussion of this issue in the online project docs.)

A few questions:

* Is javac -target required to generate the same byte code as the target javac?

* Is javac -target required to generate the same error messages as the target javac?

* Are there negative tests to verify that language features introduced in later releases are rejected?

* How frequently are the tests typically run?

Thank you.

  Alan