Remove async HTTP client dependency

12 files changed, 157 insertions, 301 deletions

diff --git a/pom.xml b/pom.xml
index bf54a8e9c..c9c1b9bd6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -74,11 +74,6 @@
             <version>3.10.6.Final</version>
         </dependency>
         <dependency>
-            <groupId>com.ning</groupId> <!-- org.asynchttpclient starting from version 2.0 and requires Java 8 -->
-            <artifactId>async-http-client</artifactId>
-            <version>1.9.40</version>
-        </dependency>
-        <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-simple</artifactId>
             <version>1.7.25</version>
@@ -129,6 +124,11 @@
             <version>${jersey.version}</version>
         </dependency>
         <dependency>
+            <groupId>com.fasterxml.jackson.datatype</groupId>
+            <artifactId>jackson-datatype-jsr353</artifactId>
+            <version>2.8.4</version>
+        </dependency>
+        <dependency>
             <groupId>org.liquibase</groupId>
             <artifactId>liquibase-core</artifactId>
             <version>3.6.1</version>
diff --git a/src/org/traccar/Context.java b/src/org/traccar/Context.java
index 23d0a983e..7224fd742 100644
--- a/src/org/traccar/Context.java
+++ b/src/org/traccar/Context.java
@@ -17,13 +17,14 @@ package org.traccar;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.SerializationFeature;
-import com.ning.http.client.AsyncHttpClient;
 
 import java.net.InetAddress;
 import java.net.UnknownHostException;
 import java.util.Properties;
 
-import com.ning.http.client.AsyncHttpClientConfigDefaults;
+import com.fasterxml.jackson.datatype.jsr353.JSR353Module;
+import com.fasterxml.jackson.jaxrs.json.JacksonJaxbJsonProvider;
+import com.fasterxml.jackson.jaxrs.json.JacksonJsonProvider;
 import org.apache.velocity.app.VelocityEngine;
 import org.eclipse.jetty.util.URIUtil;
 import org.traccar.database.CalendarManager;
@@ -76,11 +77,13 @@ import org.traccar.geolocation.MozillaGeolocationProvider;
 import org.traccar.geolocation.OpenCellIdGeolocationProvider;
 import org.traccar.notification.EventForwarder;
 import org.traccar.notification.JsonTypeEventForwarder;
-import org.traccar.notification.MultiPartEventForwarder;
 import org.traccar.reports.model.TripsConfig;
 import org.traccar.smpp.SmppClient;
 import org.traccar.web.WebServer;
 
+import javax.ws.rs.client.Client;
+import javax.ws.rs.client.ClientBuilder;
+
 public final class Context {
 
     private static final String USER_AGENT =
@@ -209,15 +212,10 @@ public final class Context {
         return velocityEngine;
     }
 
-    private static AsyncHttpClient asyncHttpClient;
-
-    static {
-        System.setProperty(AsyncHttpClientConfigDefaults.ASYNC_CLIENT + "userAgent", USER_AGENT);
-        asyncHttpClient = new AsyncHttpClient();
-    }
+    private static Client client = ClientBuilder.newClient();
 
-    public static AsyncHttpClient getAsyncHttpClient() {
-        return asyncHttpClient;
+    public static Client getClient() {
+        return client;
     }
 
     private static EventForwarder eventForwarder;
@@ -343,12 +341,18 @@ public final class Context {
         }
 
         objectMapper = new ObjectMapper();
+        objectMapper.registerModule(new JSR353Module());
         objectMapper.setConfig(
                 objectMapper.getSerializationConfig().without(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS));
         if (Context.getConfig().getBoolean("mapper.prettyPrintedJson")) {
             objectMapper.enable(SerializationFeature.INDENT_OUTPUT);
         }
 
+        JacksonJsonProvider jsonProvider =
+                new JacksonJaxbJsonProvider(objectMapper, JacksonJaxbJsonProvider.DEFAULT_ANNOTATIONS);
+        client = ClientBuilder.newClient().register(jsonProvider);
+
+
         if (config.hasKey("database.url")) {
             dataManager = new DataManager(config);
         }
@@ -392,11 +396,7 @@ public final class Context {
         serverManager = new ServerManager();
 
         if (config.getBoolean("event.forward.enable")) {
-            if (Context.getConfig().getBoolean("event.forward.payloadAsParamMode")) {
-                eventForwarder = new MultiPartEventForwarder();
-            } else {
-                eventForwarder = new JsonTypeEventForwarder();
-            }
+            eventForwarder = new JsonTypeEventForwarder();
         }
 
         attributesManager = new AttributesManager(dataManager);
@@ -471,6 +471,10 @@ public final class Context {
     public static void init(IdentityManager testIdentityManager) {
         config = new Config();
         objectMapper = new ObjectMapper();
+        objectMapper.registerModule(new JSR353Module());
+        JacksonJsonProvider jsonProvider =
+                new JacksonJaxbJsonProvider(objectMapper, JacksonJaxbJsonProvider.DEFAULT_ANNOTATIONS);
+        client = ClientBuilder.newClient().register(jsonProvider);
         identityManager = testIdentityManager;
     }
 
diff --git a/src/org/traccar/WebDataHandler.java b/src/org/traccar/WebDataHandler.java
index cdd9d0c11..79221de9a 100644
--- a/src/org/traccar/WebDataHandler.java
+++ b/src/org/traccar/WebDataHandler.java
@@ -16,12 +16,12 @@
 package org.traccar;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
-import com.ning.http.client.AsyncHttpClient;
 import org.traccar.helper.Checksum;
 import org.traccar.helper.Log;
 import org.traccar.model.Device;
 import org.traccar.model.Position;
 
+import javax.ws.rs.client.Entity;
 import java.util.HashMap;
 import java.util.Map;
 import java.io.UnsupportedEncodingException;
@@ -129,21 +129,14 @@ public class WebDataHandler extends BaseDataHandler {
     @Override
     protected Position handlePosition(Position position) {
         if (json) {
-            AsyncHttpClient.BoundRequestBuilder requestBuilder = Context.getAsyncHttpClient().preparePost(url);
-            requestBuilder.setBodyEncoding(StandardCharsets.UTF_8.name());
-
-            requestBuilder.addHeader("Content-Type", "application/json; charset=utf-8");
-
-            requestBuilder.setBody(prepareJsonPayload(position));
-            requestBuilder.execute();
-
+            Context.getClient().target(url).request().async().post(Entity.json(prepareJsonPayload(position)));
         } else {
-            Context.getAsyncHttpClient().prepareGet(formatRequest(position)).execute();
+            Context.getClient().target(formatRequest(position)).request().async().get();
         }
         return position;
     }
 
-    protected String prepareJsonPayload(Position position) {
+    protected Map<String, Object> prepareJsonPayload(Position position) {
 
         Map<String, Object> data = new HashMap<>();
         Device device = Context.getIdentityManager().getById(position.getDeviceId());
@@ -154,11 +147,7 @@ public class WebDataHandler extends BaseDataHandler {
             data.put(KEY_DEVICE, device);
         }
 
-        try {
-            return Context.getObjectMapper().writeValueAsString(data);
-        } catch (JsonProcessingException e) {
-            Log.warning(e);
-            return null;
-        }
+        return data;
     }
+
 }
diff --git a/src/org/traccar/database/StatisticsManager.java b/src/org/traccar/database/StatisticsManager.java
index 9a3ff06bd..452cdffa0 100644
--- a/src/org/traccar/database/StatisticsManager.java
+++ b/src/org/traccar/database/StatisticsManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2017 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,13 +15,13 @@
  */
 package org.traccar.database;
 
-import com.ning.http.client.Request;
-import com.ning.http.client.RequestBuilder;
 import org.joda.time.format.ISODateTimeFormat;
 import org.traccar.Context;
 import org.traccar.helper.Log;
 import org.traccar.model.Statistics;
 
+import javax.ws.rs.client.Entity;
+import javax.ws.rs.core.Form;
 import java.sql.SQLException;
 import java.util.Calendar;
 import java.util.Date;
@@ -70,22 +70,21 @@ public class StatisticsManager {
             String url = Context.getConfig().getString("server.statistics");
             if (url != null) {
                 String time = ISODateTimeFormat.dateTime().print(statistics.getCaptureTime().getTime());
-                Request request = new RequestBuilder("POST")
-                        .setUrl(url)
-                        .addHeader("Content-Type", "application/x-www-form-urlencoded")
-                        .addFormParam("version", Log.getAppVersion())
-                        .addFormParam("captureTime", time)
-                        .addFormParam("activeUsers", String.valueOf(statistics.getActiveUsers()))
-                        .addFormParam("activeDevices", String.valueOf(statistics.getActiveDevices()))
-                        .addFormParam("requests", String.valueOf(statistics.getRequests()))
-                        .addFormParam("messagesReceived", String.valueOf(statistics.getMessagesReceived()))
-                        .addFormParam("messagesStored", String.valueOf(statistics.getMessagesStored()))
-                        .addFormParam("mailSent", String.valueOf(statistics.getMailSent()))
-                        .addFormParam("smsSent", String.valueOf(statistics.getSmsSent()))
-                        .addFormParam("geocoderRequests", String.valueOf(statistics.getGeocoderRequests()))
-                        .addFormParam("geolocationRequests", String.valueOf(statistics.getGeolocationRequests()))
-                        .build();
-                Context.getAsyncHttpClient().prepareRequest(request).execute();
+
+                Form form = new Form();
+                form.param("version", Log.getAppVersion());
+                form.param("captureTime", time);
+                form.param("activeUsers", String.valueOf(statistics.getActiveUsers()));
+                form.param("activeDevices", String.valueOf(statistics.getActiveDevices()));
+                form.param("requests", String.valueOf(statistics.getRequests()));
+                form.param("messagesReceived", String.valueOf(statistics.getMessagesReceived()));
+                form.param("messagesStored", String.valueOf(statistics.getMessagesStored()));
+                form.param("mailSent", String.valueOf(statistics.getMailSent()));
+                form.param("smsSent", String.valueOf(statistics.getSmsSent()));
+                form.param("geocoderRequests", String.valueOf(statistics.getGeocoderRequests()));
+                form.param("geolocationRequests", String.valueOf(statistics.getGeolocationRequests()));
+
+                Context.getClient().target(url).request().async().post(Entity.form(form));
             }
 
             users.clear();
diff --git a/src/org/traccar/geocoder/JsonGeocoder.java b/src/org/traccar/geocoder/JsonGeocoder.java
index 82a6ee604..e06663689 100644
--- a/src/org/traccar/geocoder/JsonGeocoder.java
+++ b/src/org/traccar/geocoder/JsonGeocoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2017 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,21 +15,16 @@
  */
 package org.traccar.geocoder;
 
-import com.ning.http.client.AsyncCompletionHandler;
-import com.ning.http.client.Response;
 import org.traccar.Context;
 import org.traccar.helper.Log;
 
-import javax.json.Json;
 import javax.json.JsonObject;
-import javax.json.JsonReader;
-
-import java.io.IOException;
+import javax.ws.rs.client.Invocation;
+import javax.ws.rs.client.InvocationCallback;
 import java.util.AbstractMap;
 import java.util.Collections;
 import java.util.LinkedHashMap;
 import java.util.Map;
-import java.util.concurrent.ExecutionException;
 
 public abstract class JsonGeocoder implements Geocoder {
 
@@ -51,25 +46,24 @@ public abstract class JsonGeocoder implements Geocoder {
         }
     }
 
-    private String handleResponse(double latitude, double longitude, Response response,
-            ReverseGeocoderCallback callback) throws IOException {
-        try (JsonReader reader = Json.createReader(response.getResponseBodyAsStream())) {
-            Address address = parseAddress(reader.readObject());
-            if (address != null) {
-                String formattedAddress = addressFormat.format(address);
-                if (cache != null) {
-                    cache.put(new AbstractMap.SimpleImmutableEntry<>(latitude, longitude), formattedAddress);
-                }
-                if (callback != null) {
-                    callback.onSuccess(formattedAddress);
-                }
-                return formattedAddress;
-            } else {
-                if (callback != null) {
-                    callback.onFailure(new GeocoderException("Empty address"));
-                }
-                Log.warning("Empty address");
+    private String handleResponse(
+            double latitude, double longitude, JsonObject json, ReverseGeocoderCallback callback) {
+
+        Address address = parseAddress(json);
+        if (address != null) {
+            String formattedAddress = addressFormat.format(address);
+            if (cache != null) {
+                cache.put(new AbstractMap.SimpleImmutableEntry<>(latitude, longitude), formattedAddress);
+            }
+            if (callback != null) {
+                callback.onSuccess(formattedAddress);
+            }
+            return formattedAddress;
+        } else {
+            if (callback != null) {
+                callback.onFailure(new GeocoderException("Empty address"));
             }
+            Log.warning("Empty address");
         }
         return null;
     }
@@ -88,27 +82,22 @@ public abstract class JsonGeocoder implements Geocoder {
             }
         }
 
+        Invocation.Builder request = Context.getClient().target(String.format(url, latitude, longitude)).request();
+
         if (callback != null) {
-            Context.getAsyncHttpClient().prepareGet(String.format(url, latitude, longitude))
-                    .execute(new AsyncCompletionHandler() {
+            request.async().get(new InvocationCallback<JsonObject>() {
                 @Override
-                public Object onCompleted(Response response) throws Exception {
-                    return handleResponse(latitude, longitude, response, callback);
+                public void completed(JsonObject json) {
+                    callback.onSuccess(handleResponse(latitude, longitude, json, callback));
                 }
 
                 @Override
-                public void onThrowable(Throwable t) {
-                    callback.onFailure(t);
+                public void failed(Throwable throwable) {
+                    callback.onFailure(throwable);
                 }
             });
         } else {
-            try {
-                Response response = Context.getAsyncHttpClient()
-                        .prepareGet(String.format(url, latitude, longitude)).execute().get();
-                return handleResponse(latitude, longitude, response, null);
-            } catch (InterruptedException | ExecutionException | IOException error) {
-                Log.warning("Geocoding failed", error);
-            }
+            return handleResponse(latitude, longitude, request.get(JsonObject.class), null);
         }
         return null;
     }
diff --git a/src/org/traccar/geolocation/OpenCellIdGeolocationProvider.java b/src/org/traccar/geolocation/OpenCellIdGeolocationProvider.java
index d6e45b550..768aaf6a2 100644
--- a/src/org/traccar/geolocation/OpenCellIdGeolocationProvider.java
+++ b/src/org/traccar/geolocation/OpenCellIdGeolocationProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,15 +15,12 @@
  */
 package org.traccar.geolocation;
 
-import com.ning.http.client.AsyncCompletionHandler;
-import com.ning.http.client.Response;
 import org.traccar.Context;
 import org.traccar.model.CellTower;
 import org.traccar.model.Network;
 
-import javax.json.Json;
 import javax.json.JsonObject;
-import javax.json.JsonReader;
+import javax.ws.rs.client.InvocationCallback;
 
 public class OpenCellIdGeolocationProvider implements GeolocationProvider {
 
@@ -45,25 +42,21 @@ public class OpenCellIdGeolocationProvider implements GeolocationProvider {
             String request = String.format(url, cellTower.getMobileCountryCode(), cellTower.getMobileNetworkCode(),
                     cellTower.getLocationAreaCode(), cellTower.getCellId());
 
-            Context.getAsyncHttpClient().prepareGet(request).execute(new AsyncCompletionHandler() {
+            Context.getClient().target(request).request().async().get(new InvocationCallback<JsonObject>() {
                 @Override
-                public Object onCompleted(Response response) throws Exception {
-                    try (JsonReader reader = Json.createReader(response.getResponseBodyAsStream())) {
-                        JsonObject json = reader.readObject();
-                        if (json.containsKey("lat") && json.containsKey("lon")) {
-                            callback.onSuccess(
-                                    json.getJsonNumber("lat").doubleValue(),
-                                    json.getJsonNumber("lon").doubleValue(), 0);
-                        } else {
-                            callback.onFailure(new GeolocationException("Coordinates are missing"));
-                        }
+                public void completed(JsonObject json) {
+                    if (json.containsKey("lat") && json.containsKey("lon")) {
+                        callback.onSuccess(
+                                json.getJsonNumber("lat").doubleValue(),
+                                json.getJsonNumber("lon").doubleValue(), 0);
+                    } else {
+                        callback.onFailure(new GeolocationException("Coordinates are missing"));
                     }
-                    return null;
                 }
 
                 @Override
-                public void onThrowable(Throwable t) {
-                    callback.onFailure(t);
+                public void failed(Throwable throwable) {
+                    callback.onFailure(throwable);
                 }
             });
 
diff --git a/src/org/traccar/geolocation/UniversalGeolocationProvider.java b/src/org/traccar/geolocation/UniversalGeolocationProvider.java
index 6416b2633..f71620d8a 100644
--- a/src/org/traccar/geolocation/UniversalGeolocationProvider.java
+++ b/src/org/traccar/geolocation/UniversalGeolocationProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,17 +15,13 @@
  */
 package org.traccar.geolocation;
 
-import com.fasterxml.jackson.core.JsonProcessingException;
-import com.ning.http.client.AsyncCompletionHandler;
-import com.ning.http.client.Response;
 import org.traccar.Context;
 import org.traccar.model.Network;
 
-import javax.json.Json;
 import javax.json.JsonObject;
-import javax.json.JsonReader;
-import javax.ws.rs.core.HttpHeaders;
-import javax.ws.rs.core.MediaType;
+import javax.ws.rs.client.AsyncInvoker;
+import javax.ws.rs.client.Entity;
+import javax.ws.rs.client.InvocationCallback;
 
 public class UniversalGeolocationProvider implements GeolocationProvider {
 
@@ -37,38 +33,26 @@ public class UniversalGeolocationProvider implements GeolocationProvider {
 
     @Override
     public void getLocation(Network network, final LocationProviderCallback callback) {
-        try {
-            String request = Context.getObjectMapper().writeValueAsString(network);
-            Context.getAsyncHttpClient().preparePost(url)
-                    .setHeader(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON)
-                    .setHeader(HttpHeaders.CONTENT_LENGTH, String.valueOf(request.length()))
-                    .setBody(request).execute(new AsyncCompletionHandler() {
-                @Override
-                public Object onCompleted(Response response) throws Exception {
-                    try (JsonReader reader = Json.createReader(response.getResponseBodyAsStream())) {
-                        JsonObject json = reader.readObject();
-                        if (json.containsKey("error")) {
-                            callback.onFailure(
-                                    new GeolocationException(json.getJsonObject("error").getString("message")));
-                        } else {
-                            JsonObject location = json.getJsonObject("location");
-                            callback.onSuccess(
-                                    location.getJsonNumber("lat").doubleValue(),
-                                    location.getJsonNumber("lng").doubleValue(),
-                                    json.getJsonNumber("accuracy").doubleValue());
-                        }
-                    }
-                    return null;
+        AsyncInvoker invoker = Context.getClient().target(url).request().async();
+        invoker.post(Entity.json(network), new InvocationCallback<JsonObject>() {
+            @Override
+            public void completed(JsonObject json) {
+                if (json.containsKey("error")) {
+                    callback.onFailure(new GeolocationException(json.getJsonObject("error").getString("message")));
+                } else {
+                    JsonObject location = json.getJsonObject("location");
+                    callback.onSuccess(
+                            location.getJsonNumber("lat").doubleValue(),
+                            location.getJsonNumber("lng").doubleValue(),
+                            json.getJsonNumber("accuracy").doubleValue());
                 }
+            }
 
-                @Override
-                public void onThrowable(Throwable t) {
-                    callback.onFailure(t);
-                }
-            });
-        } catch (JsonProcessingException e) {
-            callback.onFailure(e);
-        }
+            @Override
+            public void failed(Throwable throwable) {
+                callback.onFailure(throwable);
+            }
+        });
     }
 
 }
diff --git a/src/org/traccar/geolocation/UnwiredGeolocationProvider.java b/src/org/traccar/geolocation/UnwiredGeolocationProvider.java
index dcc5a4e7a..963bcb688 100644
--- a/src/org/traccar/geolocation/UnwiredGeolocationProvider.java
+++ b/src/org/traccar/geolocation/UnwiredGeolocationProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,21 +17,16 @@ package org.traccar.geolocation;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.node.ObjectNode;
-import com.ning.http.client.AsyncCompletionHandler;
-import com.ning.http.client.Response;
 import org.traccar.Context;
 import org.traccar.model.CellTower;
 import org.traccar.model.Network;
 import org.traccar.model.WifiAccessPoint;
 
-import javax.json.Json;
 import javax.json.JsonObject;
-import javax.json.JsonReader;
-import javax.ws.rs.core.HttpHeaders;
-import javax.ws.rs.core.MediaType;
+import javax.ws.rs.client.Entity;
+import javax.ws.rs.client.InvocationCallback;
 import java.util.Collection;
 
 public class UnwiredGeolocationProvider implements GeolocationProvider {
@@ -90,39 +85,27 @@ public class UnwiredGeolocationProvider implements GeolocationProvider {
 
     @Override
     public void getLocation(Network network, final LocationProviderCallback callback) {
-        try {
-            ObjectNode json = objectMapper.valueToTree(network);
-            json.put("token", key);
-            String request = objectMapper.writeValueAsString(json);
-            Context.getAsyncHttpClient().preparePost(url)
-                    .setHeader(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON)
-                    .setHeader(HttpHeaders.CONTENT_LENGTH, String.valueOf(request.length()))
-                    .setBody(request).execute(new AsyncCompletionHandler() {
-                @Override
-                public Object onCompleted(Response response) throws Exception {
-                    try (JsonReader reader = Json.createReader(response.getResponseBodyAsStream())) {
-                        JsonObject json = reader.readObject();
-                        if (json.getString("status").equals("error")) {
-                            callback.onFailure(
-                                    new GeolocationException(json.getString("message")));
-                        } else {
-                            callback.onSuccess(
-                                    json.getJsonNumber("lat").doubleValue(),
-                                    json.getJsonNumber("lon").doubleValue(),
-                                    json.getJsonNumber("accuracy").doubleValue());
-                        }
-                    }
-                    return null;
-                }
+        ObjectNode json = objectMapper.valueToTree(network);
+        json.put("token", key);
 
-                @Override
-                public void onThrowable(Throwable t) {
-                    callback.onFailure(t);
+        Context.getClient().target(url).request().async().post(Entity.json(json), new InvocationCallback<JsonObject>() {
+            @Override
+            public void completed(JsonObject json) {
+                if (json.getString("status").equals("error")) {
+                    callback.onFailure(new GeolocationException(json.getString("message")));
+                } else {
+                    callback.onSuccess(
+                            json.getJsonNumber("lat").doubleValue(),
+                            json.getJsonNumber("lon").doubleValue(),
+                            json.getJsonNumber("accuracy").doubleValue());
                 }
-            });
-        } catch (JsonProcessingException e) {
-            callback.onFailure(e);
-        }
+            }
+
+            @Override
+            public void failed(Throwable throwable) {
+                callback.onFailure(throwable);
+            }
+        });
     }
 
 }
diff --git a/src/org/traccar/notification/EventForwarder.java b/src/org/traccar/notification/EventForwarder.java
index 9d2181e21..b8990d84f 100644
--- a/src/org/traccar/notification/EventForwarder.java
+++ b/src/org/traccar/notification/EventForwarder.java
@@ -15,26 +15,21 @@
  */
 package org.traccar.notification;
 
-import com.fasterxml.jackson.core.JsonProcessingException;
-import com.ning.http.client.AsyncHttpClient.BoundRequestBuilder;
-import java.util.Collections;
-import java.util.List;
-
+import org.apache.commons.collections4.MultiValuedMap;
+import org.apache.commons.collections4.multimap.ArrayListValuedHashMap;
 import org.traccar.Context;
-import org.traccar.helper.Log;
 import org.traccar.model.Device;
 import org.traccar.model.Event;
 import org.traccar.model.Geofence;
 import org.traccar.model.Maintenance;
 import org.traccar.model.Position;
 
-import java.nio.charset.StandardCharsets;
+import javax.ws.rs.client.AsyncInvoker;
+import javax.ws.rs.client.Invocation;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Set;
 
-import com.ning.http.client.FluentCaseInsensitiveStringsMap;
-
 public abstract class EventForwarder {
 
     private final String url;
@@ -54,37 +49,29 @@ public abstract class EventForwarder {
 
     public final void forwardEvent(Event event, Position position, Set<Long> users) {
 
-        BoundRequestBuilder requestBuilder = Context.getAsyncHttpClient().preparePost(url);
-        requestBuilder.setBodyEncoding(StandardCharsets.UTF_8.name());
-
-        requestBuilder.addHeader("Content-Type", getContentType());
+        Invocation.Builder requestBuilder = Context.getClient().target(url).request();
 
         if (header != null && !header.isEmpty()) {
-            FluentCaseInsensitiveStringsMap params = new FluentCaseInsensitiveStringsMap();
-            params.putAll(splitIntoKeyValues(header, ":"));
-            requestBuilder.setHeaders(params);
+            for (Map.Entry<String, String> entry : splitKeyValues(header, ":").entries()) {
+                requestBuilder = requestBuilder.header(entry.getKey(), entry.getValue());
+            }
         }
 
-        setContent(event, position, users, requestBuilder);
-        requestBuilder.execute();
+        executeRequest(event, position, users, requestBuilder.async());
     }
 
-    protected Map<String, List<String>> splitIntoKeyValues(String params, String separator) {
-
-        String[] splitedLine;
-        Map<String, List<String>> paramsMap = new HashMap<>();
-        String[] paramsLines = params.split("\\r?\\n");
-
-        for (String paramLine: paramsLines) {
-            splitedLine = paramLine.split(separator, 2);
-            if (splitedLine.length == 2) {
-                paramsMap.put(splitedLine[0].trim(), Collections.singletonList(splitedLine[1].trim()));
+    protected MultiValuedMap<String, String> splitKeyValues(String params, String separator) {
+        MultiValuedMap<String, String> data = new ArrayListValuedHashMap<>();
+        for (String line: params.split("\\r?\\n")) {
+            String[] values = line.split(separator, 2);
+            if (values.length == 2) {
+                data.put(values[0].trim(), values[1].trim());
             }
         }
-        return paramsMap;
+        return data;
     }
 
-    protected String prepareJsonPayload(Event event, Position position, Set<Long> users) {
+    protected Map<String, Object> preparePayload(Event event, Position position, Set<Long> users) {
         Map<String, Object> data = new HashMap<>();
         data.put(KEY_EVENT, event);
         if (position != null) {
@@ -107,16 +94,10 @@ public abstract class EventForwarder {
             }
         }
         data.put(KEY_USERS, Context.getUsersManager().getItems(users));
-        try {
-            return Context.getObjectMapper().writeValueAsString(data);
-        } catch (JsonProcessingException e) {
-            Log.warning(e);
-            return null;
-        }
+        return data;
     }
 
-    protected abstract String getContentType();
-    protected abstract void setContent(
-            Event event, Position position, Set<Long> users, BoundRequestBuilder requestBuilder);
+    protected abstract void executeRequest(
+            Event event, Position position, Set<Long> users, AsyncInvoker invoker);
 
 }
diff --git a/src/org/traccar/notification/JsonTypeEventForwarder.java b/src/org/traccar/notification/JsonTypeEventForwarder.java
index 27ef61af1..fcafb964a 100644
--- a/src/org/traccar/notification/JsonTypeEventForwarder.java
+++ b/src/org/traccar/notification/JsonTypeEventForwarder.java
@@ -5,18 +5,14 @@ import java.util.Set;
 import org.traccar.model.Event;

 import org.traccar.model.Position;

 

-import com.ning.http.client.AsyncHttpClient.BoundRequestBuilder;

+import javax.ws.rs.client.AsyncInvoker;

+import javax.ws.rs.client.Entity;

 

 public class JsonTypeEventForwarder extends EventForwarder {

 

     @Override

-    protected String getContentType() {

-        return "application/json; charset=utf-8";

-    }

-

-    @Override

-    protected void setContent(Event event, Position position, Set<Long> users, BoundRequestBuilder requestBuilder) {

-        requestBuilder.setBody(prepareJsonPayload(event, position, users));

+    protected void executeRequest(Event event, Position position, Set<Long> users, AsyncInvoker invoker) {

+        invoker.post(Entity.json(preparePayload(event, position, users)));

     }

 

 }

diff --git a/src/org/traccar/notification/MultiPartEventForwarder.java b/src/org/traccar/notification/MultiPartEventForwarder.java
deleted file mode 100644
index 6227c66cc..000000000
--- a/src/org/traccar/notification/MultiPartEventForwarder.java
+++ /dev/null
@@ -1,47 +0,0 @@
-package org.traccar.notification;
-
-import java.nio.charset.StandardCharsets;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.Map.Entry;
-
-import org.traccar.Context;
-import org.traccar.model.Event;
-import org.traccar.model.Position;
-
-import com.ning.http.client.AsyncHttpClient.BoundRequestBuilder;
-import com.ning.http.client.multipart.StringPart;
-
-public class MultiPartEventForwarder extends EventForwarder {
-
-    private final String payloadParamName;
-    private final String additionalParams;
-
-    public MultiPartEventForwarder() {
-        payloadParamName = Context.getConfig().getString("event.forward.paramMode.payloadParamName", "payload");
-        additionalParams = Context.getConfig().getString("event.forward.paramMode.additionalParams");
-    }
-
-    @Override
-    protected String getContentType() {
-        return "multipart/form-data";
-    }
-
-    @Override
-    protected void setContent(Event event, Position position, Set<Long> users, BoundRequestBuilder requestBuilder) {
-
-        if (additionalParams != null && !additionalParams.isEmpty()) {
-            Map<String, List<String>> paramsToAdd = splitIntoKeyValues(additionalParams, "=");
-
-            for (Entry<String, List<String>> param : paramsToAdd.entrySet()) {
-                for (String singleParamValue : param.getValue()) {
-                    requestBuilder.addBodyPart(new StringPart(param.getKey(), singleParamValue, null,
-                            StandardCharsets.UTF_8));
-                }
-            }
-        }
-        requestBuilder.addBodyPart(new StringPart(payloadParamName,
-                prepareJsonPayload(event, position, users), "application/json", StandardCharsets.UTF_8));
-    }
-}
diff --git a/test/org/traccar/WebDataHandlerTest.java b/test/org/traccar/WebDataHandlerTest.java
index 9c8f036b0..70c744b3a 100644
--- a/test/org/traccar/WebDataHandlerTest.java
+++ b/test/org/traccar/WebDataHandlerTest.java
@@ -3,8 +3,6 @@ package org.traccar;
 import org.junit.Test;
 import org.traccar.model.Position;
 
-import java.text.ParseException;
-
 import static org.junit.Assert.assertEquals;
 
 public class WebDataHandlerTest extends ProtocolTest {
@@ -22,17 +20,4 @@ public class WebDataHandlerTest extends ProtocolTest {
 
     }
 
-    @Test
-    public void testPrepareJsonPayload() throws ParseException {
-
-        Position p = position("2016-01-01 01:02:03.000", true, 20, 30);
-
-        WebDataHandler handler = new WebDataHandler("http://localhost/", true);
-
-        assertEquals(
-                "{\"position\":{\"id\":0,\"attributes\":{},\"deviceId\":0,\"type\":null,\"protocol\":null,\"serverTime\":null,\"deviceTime\":1451610123000,\"fixTime\":1451610123000,\"outdated\":false,\"valid\":true,\"latitude\":20.0,\"longitude\":30.0,\"altitude\":0.0,\"speed\":0.0,\"course\":0.0,\"address\":null,\"accuracy\":0.0,\"network\":null},\"device\":{\"id\":1,\"attributes\":{},\"groupId\":0,\"name\":\"test\",\"uniqueId\":\"123456789012345\",\"status\":\"offline\",\"lastUpdate\":null,\"positionId\":0,\"geofenceIds\":null,\"phone\":null,\"model\":null,\"contact\":null,\"category\":null,\"disabled\":false}}",
-                handler.prepareJsonPayload(p));
-
-    }
-
 }