JavaAdapter - extend class?

[Bruno Borges]

On Mozilla Rhino, the JavaAdapter offers the capability of extending 
from concrete classes, and also implementing more than one interface.

Will Nashorn offer this same capability?

I ask this because the modified version of Rhino that comes with JRE 
does *not* offer this.

Thanks

-- 
Bruno Borges
Principal Product Manager | JavaEE WebLogic GlassFish
Oracle LAD PM Team        | Cloud Application Foundation
+55 11 5187 6514 (Work)   | +55 11 99564 9058 (Mobi)