Simple Java Wrapper for Google Product Content API

I am trying to publish content to the Google Product database using the Content API. I have looked at their documentation and samples and have found some problems in making this work. I am looking for someone who is good at Java programming and can find a way to make this work. Deliverables will be: * A single JAR that includes all libraries either from Google or external, as well as some wrapper code that you write. * A single Java class file called Product, that allows a product record to be created * A single Java class file called Collection that serves as a factory for Product classes and allows Product records to be saved to the Google DB.