Javapackager 10 to bundle OpenJDK 11 runtime

[Alan White (Drum Score Editor)]

I understand the guidance for apps created with OpenJDK 11, is to use the 
javapackager from jdk 10. 

The old basedir parameter that could be used to direct the packager to use a 
specific runtime is no longer present. 

Is there any mechanism I’ve missed in order to have the packager from jdk10 
bundle the 11 runtime plse?

Thanks