How do I call java methods on an object from a FreeMarker template?

FreeMarker allows invoking methods that were made available through the model from within expressions.

Assuming your object has been exposed as myBean you can invoke the method as follows:

<#list myBean.getunits("myType") as unit>
  do stuff with ${unit}
</#list>

You don’t have to use <#list>, of course, it’s just there as an example since your method returns a list.