jigsaw EA feedback for apache lucene

[Robert Muir]

Thanks for posting this EA release! I played around with it just to
try to get lucene working with it, got the lucene test suite passing,
though initially tons of tests were failing.

Problems were basically all test/build related:
* API oddities around FileChannel required a better hack (thanks
Brian): http://mail.openjdk.java.net/pipermail/nio-dev/2015-September/003322.html
* Cleaning up a bunch of bad package accesses, these were already
TODOs in our test security policy, mostly just test bugs and the like.
* A few silly one-off's like a test that was trying to open
String.class as a resource
* some issues with a static analysis tool we use
(https://github.com/policeman-tools/forbidden-apis), I think it wants
to look at class files too.

I also started investigating elasticsearch, which is another big
codebase, but an app versus a library. This will require some more
work (nothing compiles, all tests fail, app doesnt start) but I can
report back on that later, after I try to cleanup.

Overall I like how this stuff is more locked down. I do think a lot of
projects will need to cleanup their code. For both these projects I am
testing, we already had a nice head start: testing 9-ea versions
already, running tests with security manager, trying to whittle down
the bad package accesses for a while now, submit fixes to libraries we
depend on, etc.