The following command causes an NPE.

C:\java\spreader>c:\jdk8\bin\javafxpackager -deploy -v -name Spreader -description "auto spreader" -native exe -vendor "ABC Inc" -appclass spreader.Spreader -srcdir c:/java/spreader/lib/spreader.jar -outdir deploy -outfile
spreader
Exception in thread "main" com.sun.javafx.tools.packager.PackagerException: Error: deploy failed
        at com.sun.javafx.tools.packager.PackagerLib.generateDeploymentPackages(PackagerLib.java:498)
        at com.sun.javafx.tools.packager.Main.main(Main.java:428)
Caused by: java.lang.NullPointerException
        at com.sun.javafx.tools.packager.PackagerLib.copyFileToOutDir(PackagerLib.java:1326)
        at com.sun.javafx.tools.packager.PackagerLib.copyFiles(PackagerLib.java:544)
        at com.sun.javafx.tools.packager.PackagerLib.generateDeploymentPackages(PackagerLib.java:495)
        ... 1 more