RFR: JDK-8212780: JEP 343: Packaging Tool Implementation

[Kevin Rushforth]

I have a couple nit-picky comments:

1. The change to src/jdk.jlink/share/classes/module-info.java is 
unrelated to jpackage and should be reverted (there is only a 
white-space change and a copyright date change to that file)


2. The following files have whitespace errors that will cause jcheck to 
fail:
src/jdk.jpackage/macosx/classes/jdk/jpackage/internal/MacAppImageBuilder.java:326: 
Trailing whitespace
src/jdk.jpackage/share/classes/jdk/jpackage/internal/CLIHelp.java:58: 
Tab character
src/jdk.jpackage/share/classes/jdk/jpackage/internal/JLinkBundlerHelper.java:217: 
Trailing whitespace
src/jdk.jpackage/share/classes/jdk/jpackage/internal/ValidOptions.java:55: 
Trailing whitespace


3. I recommend to replace the wild-card imports with explicit imports, 
for example:
src/jdk.jpackage/linux/classes/jdk/jpackage/internal/LinuxDebBundler.java 
(java.util.* and java.io.*)
(I think the wild-card static import is fine, just not the import every 
class from a package)

I'll try to remember to note these as I go through the review. This one 
could be done as a follow-up bug rather than doing it prior to 
integration if you prefer.

-- Kevin