8025619: (fc) FileInputStream.getChannel on closed stream returns FileChannel that doesn't know that stream is closed Summary: If the stream is closed ensure getChannel() returns a closed channel. Also, FileKey.create() should throw an IOException directly instead of wrapping it in an Error. Reviewed-by: alanb

8067241: DeadlockTest.java failed with negative timeout value Reviewed-by: dfuchs, sspitsyn

8067112: Update java/util/Collections/EmptyIterator.java to eliminate dependency on sun.tools.java Reviewed-by: chegar, prappo Contributed-by: Amy Lu <amy.lu@oracle.com>