Cleaner code

Author: maddymanu

src/main/java/org/gitlab4j/api/http/OkHttpResteasyClientFactory.java

@@ -3,30 +3,22 @@
 import net.ltgt.resteasy.client.okhttp3.OkHttpClientEngine;
 import okhttp3.OkHttpClient;
 import org.gitlab4j.api.utils.JacksonJson;
-import org.glassfish.jersey.client.ClientProperties;
-import org.glassfish.jersey.jackson.JacksonFeature;
-import org.glassfish.jersey.media.multipart.MultiPartFeature;
 import org.jboss.resteasy.client.jaxrs.ResteasyClient;
 import org.jboss.resteasy.plugins.providers.RegisterBuiltin;
 import org.jboss.resteasy.spi.ResteasyProviderFactory;
-import org.jboss.resteasy.client.jaxrs.internal.ClientConfiguration;
 import org.jboss.resteasy.client.jaxrs.ResteasyClientBuilder;
 
 public class OkHttpResteasyClientFactory {
     public static ResteasyClient getClient(OkHttpClient client) {
         ResteasyProviderFactory instance = ResteasyProviderFactory.getInstance();
-        instance.registerProvider(JacksonJson.class);
-        RegisterBuiltin.register(instance);
+        if (!instance.getClassContracts().containsKey(JacksonJson.class)) {
+            instance.registerProvider(JacksonJson.class);
+        }
 
-        ClientConfiguration clientConfig = new ClientConfiguration(instance);
-        clientConfig.property(ClientProperties.FEATURE_AUTO_DISCOVERY_DISABLE, true);
-        clientConfig.property(ClientProperties.METAINF_SERVICES_LOOKUP_DISABLE, true);
+        RegisterBuiltin.register(instance);
 
         return new ResteasyClientBuilder().providerFactory(instance)
-            .register(JacksonFeature.class)
-            .register(MultiPartFeature.class)
             .httpEngine(new OkHttpClientEngine(client))
-            .withConfig(clientConfig)
             .build();
     }
 }