I wrote a service similar to the tutorial "Developing REST Web Services Tutorial" and the server starts fine.
I call the getCustomers function from a browser (like in section 5.3 in the tutorial) I walk through the lines of code in the debugger and when I get to the final line of this function

Code:

public List<InfoCat> getCategories() {        List<InfoCat> catList = new ArrayList<InfoCat>();        catList.addAll(catMap.values());        return catList;    }

on the return catList;
I get this error
com.sun.jersey.spi.container.ContainerResponse write
SEVERE: A message body writer for Java type, class java.util.ArrayList, and MIME media type, application/xml, was not found

What am I doing wrong?
A.

A,
You will have to provide more information to Jersey to serialize and deserialize your list.
Please refer to the following link for further information -
http://www.myeclipseide.com/PNphpBB2-viewtopic-t-22888.html