How to build Javacard Library

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I want to develop a library like the java card development kit.

I am developing two packages:
a. javacard.framework (methods in package a invoke method/class in package b)
b. com.sun.java.impl (methods in package b also invoke method/class in package a)

I want to make the library for java card.

Q:
How can I build those two packages and have sufficiently class files, export file and CAP file of both the packages?

[UNKNwYSHSA]

You can not do that. When you load package to the card.
When load package a, it needs package b loaded first;
When load package b, it needs package a loaded first!