Third party API within DC project

Hi,
We are using a JSF web project for online account management for CRM.
We need to use a payment gateway API for which I have created a new external library DC project and a corresponding EAR.
I am able to build the project successfully.
It also recognizes the API classes however it fails at one particular call where the API internally calls a class from an embedding jar/package XMlLabel ?
If I comment out that call it does not result in any exceptions.
This API works just fine in a Java application.
I came across this forum and it looks like a similar issue. But I am unable to figure out how to fix this in a DC project.
Please let me know if anyone has any idea.
Thanks,
Veena.

I was referring to this forum
Unable to call third party API within Spring- Spring Forum

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    "Eea" <[email protected]> wrote in message
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