Null JSON Writer returned from Writer Factory

[Dan Becker]

Hello,

I am attempting to write an Abdera Entry object out as a JSON object 
using Abdera 0.4. I am using the following code:

   Abdera abdera = new Abdera();
   WriterFactory wf = abdera.getWriterFactory();
   Writer json = wf.getWriter("json");
   feedEntry.writeTo(json, System.out);

The third line here returns a null Writer object. When I debug a little 
into the WriterFactory, I see it contains a HashMap with only one object 
in there for the "prettyxml" key.

Is there some other initialization or configuration of Abdera I should 
do to enable the json Writer? Tips are apprciated.


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Thanks, Dan Becker