generische Klassen definieren:
Class-Decl ==> .. | "class" Generic-Class-Name "<" Type-Parameters ">" "{" .. "}" Type-Parameters ==> ( Type-Parameter "," )^* Type-Parameter Type-Parameter ==> ( Type-Variable | "?" ) [ "extends" Type-Name ]
generische Klassen benutzen:
Type-Name ==> Class-Name | Generic-Class-Name "<" Type-Arguments ">" | Type-Variable Type-Arguments ==> ( Type-Name "," )^* Type-Name