Hi,

Here are a couple of pages that might help you with GWT integration:
https://www.labkey.org/wiki/home/Documentation/page.view?name=GWT
https://www.labkey.org/wiki/home/Documentation/page.view?name=gwtservices

Please let me know if you need more information.

Regarding module-specific jars: the LabKey build system looks for a directory called 'lib' at the root of your module. All libraries in this directory are copied into WEB-INF\lib of the LabKey webapp at build time, where they are available to the running server process. This document describes the basic layout of our default module, including the lib directory:
https://www.labkey.org/wiki/home/Documentation/page.view?name=createNewModule

Please let me know if this doesn't work, or if I've misinterpreted your question.

Thanks,
Britt