bug jpackage in JDK 15

[Michael Hall]

> 
> When I open the built dmg there is an application icon, a drag to indicating arrow, but no application folder icon as the drag target.
> 
> Possibly related…
> 
> Running [osascript, /var/folders/dh/91wmrk0n6lzfmr4tjhjmcfp40000gn/T/jdk.incubator.jpackage15947685185521368596/config/BlackJack Blastoff-dmg-setup.scpt]
> /var/folders/dh/91wmrk0n6lzfmr4tjhjmcfp40000gn/T/jdk.incubator.jpackage15947685185521368596/config/BlackJack Blastoff-dmg-setup.scpt:1112:1334: execution error: Finder got an error: Can’t make class alias file. (-2710)
> java.io.IOException: Command [osascript, /var/folders/dh/91wmrk0n6lzfmr4tjhjmcfp40000gn/T/jdk.incubator.jpackage15947685185521368596/config/BlackJack Blastoff-dmg-setup.scpt] exited with 1 code
> 	at jdk.incubator.jpackage/jdk.incubator.jpackage.internal.Executor.executeExpectSuccess(Executor.java:75)
> 	at jdk.incubator.jpackage/jdk.incubator.jpackage.internal.IOUtils.exec(IOUtils.java:167)
> 	at jdk.incubator.jpackage/jdk.incubator.jpackage.internal.IOUtils.exec(IOUtils.java:135)
> 	at jdk.incubator.jpackage/jdk.incubator.jpackage.internal.MacDmgBundler.buildDMG(MacDmgBundler.java:393)
> 	at jdk.incubator.jpackage/jdk.incubator.jpackage.internal.MacDmgBundler.bundle(MacDmgBundler.java:91)
> 	at jdk.incubator.jpackage/jdk.incubator.jpackage.internal.MacDmgBundler.execute(MacDmgBundler.java:535)
> 	at jdk.incubator.jpackage/jdk.incubator.jpackage.internal.Arguments.generateBundle(Arguments.java:680)
> 	at jdk.incubator.jpackage/jdk.incubator.jpackage.internal.Arguments.processArguments(Arguments.java:549)
> 	at jdk.incubator.jpackage/jdk.incubator.jpackage.main.Main.execute(Main.java:98)
> 	at jdk.incubator.jpackage/jdk.incubator.jpackage.main.Main.main(Main.java:52)
> 
> Also it seems...
> --add-modules java.desktop,java.prefs,java.se \
> 
> Is no longer an option?
> —help doesn’t show it and I end up with…
> java-options=--module-path
> 
> In the .cfg

Fwiw I was curious if this was a known issue.
https://bugs.openjdk.java.net/browse/JDK-8250615 <https://bugs.openjdk.java.net/browse/JDK-8250615>

It seems like this might still be an open issue?
I am guessing new Folder security on OS X Catalina. If so I would be interested in hearing of any resolution. I have had another problem with a java app on the Documents folder.