Java ignited a revolution when Sun transitioned it to the Web in 1994, and although Java has been reasonably successful on the client (the user's machine), Java on the server became very popular. When a Java program is launched from a Web page, the program is called a Java applet..
It means that the breed has been over-breed. The female is breed over and over, too often and without proper testing. I have heard of lots of Cocker Spaniels with genetic eye problems from over/improper breeding. Overbred is when a dog has litters back to back, usually every 6 months.
The term 'purebred' refers to a dog which is born of two dogs which are registered as being that particular breed. A dog can not become kennel club registered as, for example, a border collie if its parents are not both a border collie. Therefore, that dog will not be able to sire a litter of purebred puppies. Purebred dogs have been bred for many centuries for specific traits and characteristics. When you breed a purebred dog with another breed, these characteristics are 'diluted' meaning that there is an introduction of other traits.