ProxyTestUpdated.java

import org.glassfish.jersey.client.ClientConfig;
import org.glassfish.jersey.client.proxy.WebResourceFactory;
import org.glassfish.jersey.filter.LoggingFilter;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.test.JerseyTest;
import org.junit.Test;

import javax.ws.rs.*;
import java.util.logging.Logger;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.core.Context;
import org.glassfish.jersey.servlet.ServletContainer;
import org.glassfish.jersey.test.DeploymentContext;
import org.glassfish.jersey.test.ServletDeploymentContext;
import org.glassfish.jersey.test.grizzly.GrizzlyWebTestContainerFactory;
import org.glassfish.jersey.test.spi.TestContainerFactory;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;

/**
 * For Stack Overflow question http://stackoverflow.com/q/34289647/2587435
 *
 * Run it like any other JUnit test. Three dependencies to run this test.
 *
 * <dependency>
 *     <groupId>org.glassfish.jersey.test-framework.providers</groupId>
 *     <artifactId>jersey-test-framework-provider-grizzly2</artifactId>
 *     <version>2.22.1</version>
 *     <scope>test</scope>
 * </dependency>
 * <dependency>
 *     <groupId>org.glassfish.jersey.media</groupId>
 *     <artifactId>jersey-media-json-jackson</artifactId>
 *     <version>2.22.1</version>
 *     <scope>test</scope>
 * </dependency>
 * <dependency>
 *     <groupId>org.glassfish.jersey.ext</groupId>
 *     <artifactId>jersey-proxy-client</artifactId>
 *     <version>2.22.1</version>
 *     <scope>test</scope>
 * </dependency>
 * <dependency>
 *     <groupId>javax.servlet</groupId>
 *     <artifactId>javax.servlet-api</artifactId>
 *     <version>3.1.0</version>
 *     <scope>test</scope>
 * </dependency>
 *
 */
public class ProxyTestUpdated extends JerseyTest {

    public static class Model {

        private String message;

        public Model(String message) {
            this.message = message;
        }

        public Model() {
        }

        public String getMessage() {
            return message;
        }

        public void setMessage(String message) {
            this.message = message;
        }

        @Override
        public String toString() {
            return "Model{" + "message=" + message + '}';
        }
    }

    public interface Resource {

        @POST
        @Consumes("application/json")
        @Produces("application/json")
        Model post(Model model, @Context HttpServletRequest request);
    }

    @Path("test")
    public static class ResourceImpl implements Resource {

        @Override
        public Model post(Model model, HttpServletRequest request) {
            return model;
        }
    }
    
    @Override
    public TestContainerFactory getTestContainerFactory() {
        return new GrizzlyWebTestContainerFactory();
    }
    
    @Override
    public DeploymentContext configureDeployment() {
        System.out.println("---- configureDeployment ----");
        return ServletDeploymentContext
                .forServlet(new ServletContainer(new ResourceConfig(ResourceImpl.class)))
                .build();
    }

    @Override
    public void configureClient(ClientConfig config) {
        config.register(new LoggingFilter(Logger.getAnonymousLogger(), true));
    }
    
    @Test
    public void doit() {
        Resource resource = WebResourceFactory.newResource(Resource.class, target("test"));
        Model reqModel = new Model("Testing");
        Model resModel = resource.post(reqModel, null);
        assertNotNull(resModel);
        assertEquals(reqModel.getMessage(), resModel.getMessage());
        System.out.println(resModel);
    }
}