JavaCard OS

Recently I was reading GP spec, and I found the methods of init and verify PIN in "org.globalplatform" in GP211 APIS. But I also found the similar methods about init and verify PIN in "javacard.framework" in JC221 APIS.
So, I want to know what is the difference between them. Does anyone know this? tnx

1. The java card pin is standalone. You can use it as you wish in your app. You can even have more than one.
2. The GP pin is global to the card. you update in app 1, the change is reflected in app 2. But it is probably less secure, since anyone can design an app that will change the pin of other apps in their back.