CRM 4 Portal with Java

Hello all,

My company planning on extending Microsoft Dynamics CRM 4 Portal with JAVA programming language.

So this portal will consume CRM 4 web services with Java.

My question is :

1. Is there anyone who already succeeded implementing this with Java?

2. Is there any problem or incapability that somehow Java is not support for this implementation?

Thanks before for your answer.

Regards,

Sumardi