>> I get a "Process Compilation error HashMap cannot be resolved to a type HashMap cannot be resolved to a type" error. <<
The Guvnor package you have your process in and are building has to have the proper imports defined.
Click on your package, and select the "Edit" tab, then under "Configuration: Imported Types" click the green "+" image to add another import type.
In the popup shown, in the "(advanced) class name:" text box type in java.util.HashMap, then the "OK" button. Validate your configuration, and then build your package again. It should build fine now.
Hope this helps.
Thanks.