force glassfish 4 to use jackson 2.3
问题 I wrote an maven application which should run on Glassfish 4. The Standard ApplicationConfig looks like this: @javax.ws.rs.ApplicationPath("resources") public class ApplicationConfig extends Application { @Override public Set<Class<?>> getClasses() { Set<Class<?>> resources = new java.util.HashSet<Class<?>>(); // following code can be used to customize Jersey 2.0 JSON provider: try { Class jsonProvider = Class.forName("org.glassfish.jersey.jackson.JacksonFeature"); } catch