Help please, first time using for Java template...

I am using NetBeans and I am trying to make a template for a java class, I
was 
So the normal variables work like:
${date},${encoding},${name},${nameAndExt},${package},${time},${user},${project.license},${project.name},${project.displayName} 

But the ones like these built-ins are undefined?
${openingTime?string.short}${openingTime?string.medium}${openingTime?string.long}${openingTime?string.full}

And the first set are the only ones that work, does anyone know a list of
all variables and how to get the second set to work?



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