Please review the jpackage fix for bug [1] at [2].This is a fix for the JDK-8200758-branch branch of the open sandbox repository (jpackage).
Additionally:- added support for `overrides.wxi` WiX source file in resource dir. Custom overrides.wxi can be used as a placeholder for overrides of default WiX variables defined by jpackage that control output msi.
- Alexey [1] https://bugs.openjdk.java.net/browse/JDK-8232919 [2] http://cr.openjdk.java.net/~asemenyuk/8232919/webrev.00
