WTX limitations deployed onto Datapower

What limitations are their with regards to deploying some WTX maps to Datapower?

When you create a WTX map and select the Map Settings -> Map Runtime as Websphere Datapower the rebuild and run the map to see if there is any errors. See the errors below when trying to compile SWIFT transformation maps:

So before you develop your maps please review the following link to make sure that your transformation maps will work correctly on Datapower: