@JGlobalMap(excluded={"other"})
class Destination {            class Source {
    String[] authors;              List<String> authors;  
    Date releaseDate;              Date releaseDate;
    String releaseVersion;         String releaseVersion;
    String other;                  String other;
    // getters and setters..       // getters and setters..
}                              }

...
import static com.googlecode.jmapper.api.JMapperAPI.*;
...
new JMapperAPI()
   .add(mappedClass(Destination.class)
      .add(global()
             .excludedAttributes("other")));

List<String> authors = new ArrayList<String>();
authors.add("Alessandro Vurro");
Source source = new Source(authors, new GregorianCalendar(2016, 3, 22).getTime(), "1.6.0", "other");
JMapper<Destination, Source> mapper = new JMapper<>(Destination.class, Source.class);
Destination destination = mapper.getDestination(source);

Destination [authors=[Alessandro Vurro], releaseDate=Mon Mar 22 00:00:00 CET 2016, releaseVersion=1.2.0, other=null]

class Destination {
    Double overallCost;
    public Destination(){
        overallCost = 0D;
    }
    public void setOverallCost(Double singleCost){
        this.overallCost += singleCost;
    }
    // getter..                                   
}
@JGlobalMap("overallCost")
class Source {
  
    Double costEmployees;
    Double costStructure;
    Double costAdvertising;
    // getters and setters..                                   
}

...
import static com.googlecode.jmapper.api.JMapperAPI.*;
...
new JMapperAPI()
   .add(mappedClass(Source.class)
      .add(global()
             .value("overallCost")));

JMapper<Destination, Source> mapper = new JMapper<>(Destination.class, Source.class);
Destination destination = mapper.getDestination(new Source(154080.80D,24000D,12570.20D));

Destination [overallCost=190651.0]