Well into the 1990s, it was still permissible to back-cross Javanese to Balinese, Siamese, and Colorpoint Shorthairs for genetic diversity within the Javanese line. Under current CFA rules, and after intervening breed redefinitions, only "certain limited outcrossing" is allowed (by special permission from CFA), and only to the Oriental Longhair (a related breed that has the same broad color range but body-wide, lacking the colorpoint pattern). All outcrossing will stop at the end of 2025. Such Balinese with non-traditional colors are, in some other registries, named Colorpoint Longhair, though this term is ambiguous, and can refer to different breeds in some registries. In the World Cat Federation (WCF) scheme, cats that would be classified in other registries as Javanese or Colorpoint Longhair have been merged with Himalayan into a single breed, Colourpoint. (In most registries aside from the WCF, the Himalayan cat is a separate breed, a cross between the Balinese and the Persian, limited to traditional Balinese/Siamese colors.) To complicate matters further, WCF has instead applied the name "Javanese" to what other registries call the Oriental Longhair, which has no point coloration. The Javanese breed has a long, silky coat in a variety of colors (unlike the actual native domestic cats of Java which have short hair). It is a single coat, in contrast to the double coat (with guard hairs) found in most long-haired breeds; as a result, it lies close to the skin, and produces a longer, sleeker look than is typical for long-haired cats. Like the Colorpoint Shorthair, the Javanese has point coloration (with a pale body and darker face and extremities), but is permitted to have coat colors and patterns not found in the Balinese or Siamese. These may range from dark brown to near white, and may be ruddy to bluish, tabby, lynx point, cream point, tortoiseshell (tortie), tortie point, and others, including unusual combinations ("blue-cream point", "cinnamon-tortie lynx point", etc.). In total, CFA defines 24 Javanese-division color combinations in addition to the four Balinese basics. Standard Javanese always have blue eyes. It is noted as an intelligent cat and tends to vocalize, often for no apparent reason; this is also a trait of the Siamese ancestor.