SimpleFeatureBuilder build = new SimpleFeatureBuilder(featureType);
GeometryBuilder geom = new GeometryBuilder();
List<SimpleFeature> list = new ArrayList<SimpleFeature>();
list.add( build.buildFeature("fid1", new Object[]{ geom.point(1,1), "hello" } ) );
list.add( build.buildFeature("fid2", new Object[]{ geom.point(2,3), "martin" } ) );
SimpleFeatureCollection collection = new ListFeatureCollection(featureType, list);
Transaction transaction = new DefaultTransaction("Add Example");
store.setTransaction( transaction );