When we use the following command:

"/Library/Java/JavaVirtualMachines/jdk1.8.0.jdk/Contents/Home/bin/javafxpackager" "-deploy" "-verbose" "-outdir" "${HOME}" "-outfile" "test" "-native" "image" "-BfxPackaging=true" "-BmainJar=${HOME}/SampleApp.jar" "-Bclasspath=${HOME}/SampleApp.jar" "-srcfiles" "${HOME}/SampleApp.jar" "-appclass" "SampleApp" "-srcdir" "${HOME}"

we expect the "bundles/SampleApp.app" folder to appear in the home directory. But insted "bundles/null.app" appears.