git: openjdk/mobile: 8235955: [dmg] DMG creation fails without error message if previous DMG was not ejected

[duke]

Changeset: 52958754
Author:    Alexander Matveev <almatvee at openjdk.org>
Date:      2020-01-21 08:46:06 +0000
URL:       https://git.openjdk.java.net/mobile/commit/52958754

8235955: [dmg] DMG creation fails without error message if previous DMG was not ejected

Reviewed-by: herrick, asemenyuk

! src/jdk.incubator.jpackage/macosx/classes/jdk/incubator/jpackage/internal/MacDmgBundler.java
! src/jdk.incubator.jpackage/macosx/classes/jdk/incubator/jpackage/internal/resources/DMGsetup.scpt