Release Note: Support @-files for java command-line tool

The `java` launcher now supports reading arguments from "argument files" specified on the command line. It is not uncommon that the `java` launcher is invoked with very long command lines (a long class path for example). Many operating systems impose a limit on the length of a command line, something that "argument files" can be used to work around.

In JDK 9, java now can read arguments from specified files as they are put on the command line. See [java command reference](https://docs.oracle.com/javase/9/tools/java.htm#GUID-3B1CE181-CD30-4178-9602-230B800D4FAE) and [java Command-Line Argument Files](https://docs.oracle.com/javase/9/tools/java.htm#JSWOR-GUID-4856361B-8BFD-4964-AE84-121F5F6CF111) for more details.