The library can’t be included in an Android app

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Import Ice4j into an Android app
2. Build the app

What is the expected output? What do you see instead?
The app should be built, however it won’t as it imports classes from JainSip, 
whose package names start with javax. This is not allowed and the following 
error message is displayed:

Ill-advised or mistaken usage of a core class (java.* or javax.*)
when not building a core library.

This is often due to inadvertently including a core library file
in your application's project, when using an IDE (such as
Eclipse). If you are sure you're not intentionally defining a
core class, then this is the most likely explanation of what's
going on.

Etc.

What version of the product are you using? On what operating system?
Release  413; building from Eclipse; the operating system is Windows 8.1

Please provide any additional information below.
The library can be used after JainSip has been repackaged and the imports in 
ice4j have been modified accordingly, however, our understanding is that due to 
licencing issues the new package names should not contain any references to 
java or javax. Would you consider providing a version (perhaps also covered by 
LGPL) that can be used in an Android application in compliance with the 
licences that currently cover the library and its dependencies?

Original issue reported on code.google.com by [email protected] on 22 Jul 2014 at 1:14