Regression of JDK-8095828 (though workaround does not work)

FULL PRODUCT VERSION :
java version "9"
Java(TM) SE Runtime Environment (build 9+181)
Java HotSpot(TM) 64-Bit Server VM (build 9+181, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.1.7601]

A DESCRIPTION OF THE PROBLEM :
My customised .iss file is no longer used by <fx:deploy>. Using the same build files, I can build fine with Java 8 installed, but with Java 9 the problem appears.

In addition, the basedir attribute of <fx:platform> is no longer accepted (I can live with this...) and the verbose attribute of <fx:deploy> seems to be ignored.

REGRESSION. Last worked in version 8u144

ADDITIONAL REGRESSION INFORMATION:
java version "9"
Java(TM) SE Runtime Environment (build 9+181)
Java HotSpot(TM) 64-Bit Server VM (build 9+181, mixed mode)

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1) Create in package/windows/myApp.iss
2) Run <fx:deploy>


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Executable packaged using custom .iss file
ACTUAL -
Executable packaged using default .iss

REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
None found