diff --git a/android/jni/com/mapswithme/core/jni_helper.cpp b/android/jni/com/mapswithme/core/jni_helper.cpp
index 667143d119..953aac16de 100644
--- a/android/jni/com/mapswithme/core/jni_helper.cpp
+++ b/android/jni/com/mapswithme/core/jni_helper.cpp
@@ -20,13 +20,13 @@ jclass g_bookmarkClazz;
 jclass g_myTrackerClazz;
 jclass g_httpClientClazz;
 jclass g_httpParamsClazz;
-jclass g_httpHeaderClazz;
 jclass g_platformSocketClazz;
 jclass g_utilsClazz;
 jclass g_bannerClazz;
 jclass g_ratingClazz;
-jclass g_arrayListClazz;
 jclass g_loggerFactoryClazz;
+jclass g_keyValueClazz;
+jclass g_httpUploaderClazz;
 
 extern "C"
 {
@@ -44,12 +44,13 @@ JNI_OnLoad(JavaVM * jvm, void *)
   g_myTrackerClazz = jni::GetGlobalClassRef(env, "com/my/tracker/MyTracker");
   g_httpClientClazz = jni::GetGlobalClassRef(env, "com/mapswithme/util/HttpClient");
   g_httpParamsClazz = jni::GetGlobalClassRef(env, "com/mapswithme/util/HttpClient$Params");
-  g_httpHeaderClazz = jni::GetGlobalClassRef(env, "com/mapswithme/util/HttpClient$HttpHeader");
   g_platformSocketClazz = jni::GetGlobalClassRef(env, "com/mapswithme/maps/location/PlatformSocket");
   g_utilsClazz = jni::GetGlobalClassRef(env, "com/mapswithme/util/Utils");
   g_bannerClazz = jni::GetGlobalClassRef(env, "com/mapswithme/maps/ads/Banner");
   g_ratingClazz = jni::GetGlobalClassRef(env, "com/mapswithme/maps/ugc/UGC$Rating");
   g_loggerFactoryClazz = jni::GetGlobalClassRef(env, "com/mapswithme/util/log/LoggerFactory");
+  g_keyValueClazz = jni::GetGlobalClassRef(env, "com/mapswithme/util/KeyValue");
+  g_httpUploaderClazz = jni::GetGlobalClassRef(env, "com/mapswithme/util/HttpUploader");
 
   return JNI_VERSION_1_6;
 }
@@ -65,12 +66,13 @@ JNI_OnUnload(JavaVM *, void *)
   env->DeleteGlobalRef(g_myTrackerClazz);
   env->DeleteGlobalRef(g_httpClientClazz);
   env->DeleteGlobalRef(g_httpParamsClazz);
-  env->DeleteGlobalRef(g_httpHeaderClazz);
   env->DeleteGlobalRef(g_platformSocketClazz);
   env->DeleteGlobalRef(g_utilsClazz);
   env->DeleteGlobalRef(g_bannerClazz);
   env->DeleteGlobalRef(g_ratingClazz);
   env->DeleteGlobalRef(g_loggerFactoryClazz);
+  env->DeleteGlobalRef(g_keyValueClazz);
+  env->DeleteGlobalRef(g_httpUploaderClazz);
 }
 } // extern "C"
 
@@ -286,4 +288,30 @@ void DumpDalvikReferenceTables()
   env->CallStaticVoidMethod(vm_class, dump_mid);
   env->DeleteLocalRef(vm_class);
 }
+
+jobject ToKeyValue(JNIEnv * env, std::pair<std::string, std::string> src)
+{
+  static jmethodID const PairInit = jni::GetConstructorID(
+    env, g_keyValueClazz, "(Ljava/lang/String;Ljava/lang/String;)V");
+
+  jni::TScopedLocalRef key(env, jni::ToJavaString(env, src.first));
+  jni::TScopedLocalRef value(env, jni::ToJavaString(env, src.second));
+
+  return env->NewObject(g_keyValueClazz, PairInit, key.get(), value.get());
+}
+
+std::pair<std::string, std::string> ToNativeKeyValue(JNIEnv * env, jobject pairOfStrings)
+{
+  static jfieldID const keyId = env->GetFieldID(g_keyValueClazz, "key",
+                                                  "Ljava/lang/String;");
+  static jfieldID const valueId = env->GetFieldID(g_keyValueClazz, "value",
+                                                   "Ljava/lang/String;");
+
+  jni::ScopedLocalRef<jstring> const key(
+    env, static_cast<jstring>(env->GetObjectField(pairOfStrings, keyId)));
+  jni::ScopedLocalRef<jstring> const value(
+    env, static_cast<jstring>(env->GetObjectField(pairOfStrings, valueId)));
+
+  return { jni::ToNativeString(env, key.get()), jni::ToNativeString(env, value.get()) };
+}
 }  // namespace jni
diff --git a/android/jni/com/mapswithme/core/jni_helper.hpp b/android/jni/com/mapswithme/core/jni_helper.hpp
index caea48b443..7ae359b5d8 100644
--- a/android/jni/com/mapswithme/core/jni_helper.hpp
+++ b/android/jni/com/mapswithme/core/jni_helper.hpp
@@ -10,6 +10,7 @@
 
 #include <memory>
 #include <string>
+#include <utility>
 
 extern jclass g_mapObjectClazz;
 extern jclass g_featureIdClazz;
@@ -17,12 +18,13 @@ extern jclass g_bookmarkClazz;
 extern jclass g_myTrackerClazz;
 extern jclass g_httpClientClazz;
 extern jclass g_httpParamsClazz;
-extern jclass g_httpHeaderClazz;
 extern jclass g_platformSocketClazz;
 extern jclass g_utilsClazz;
 extern jclass g_bannerClazz;
 extern jclass g_ratingClazz;
 extern jclass g_loggerFactoryClazz;
+extern jclass g_keyValueClazz;
+extern jclass g_httpUploaderClazz;
 
 namespace jni
 {
@@ -90,4 +92,28 @@ jobjectArray ToJavaArray(JNIEnv * env, jclass clazz, TContainer const & src, TTo
 jobjectArray ToJavaStringArray(JNIEnv * env, std::vector<std::string> const & src);
 
 void DumpDalvikReferenceTables();
+
+jobject ToKeyValue(JNIEnv * env, std::pair<std::string, std::string> src);
+
+template <typename Container>
+jobjectArray ToKeyValueArray(JNIEnv * env, Container const & src)
+{
+  return jni::ToJavaArray(env, g_keyValueClazz, src,
+                          std::bind(&ToKeyValue, std::placeholders::_1, std::placeholders::_2));
+}
+
+std::pair<std::string, std::string> ToNativeKeyValue(JNIEnv * env, jobject pairOfStrings);
+
+template <typename OutputIt>
+void ToNativekeyValueContainer(JNIEnv * env, jobjectArray src, OutputIt it)
+{
+  int const length = env->GetArrayLength(src);
+  for (size_t i = 0; i < length; ++i)
+  {
+    jni::ScopedLocalRef<jobject> const arrayItem(env, env->GetObjectArrayElement(src, i));
+
+    *it = ToNativeKeyValue(env, arrayItem.get());
+    ++it;
+  }
+}
 }  // namespace jni
diff --git a/android/jni/com/mapswithme/platform/HttpUploader.cpp b/android/jni/com/mapswithme/platform/HttpUploader.cpp
index 12fce40b41..6c79ac1ff3 100644
--- a/android/jni/com/mapswithme/platform/HttpUploader.cpp
+++ b/android/jni/com/mapswithme/platform/HttpUploader.cpp
@@ -1,12 +1,44 @@
+#include <jni.h>
+
+#include "com/mapswithme/core/jni_helper.hpp"
+#include "com/mapswithme/core/ScopedEnv.hpp"
+#include "com/mapswithme/core/ScopedLocalRef.hpp"
+
 #include "platform/http_uploader.hpp"
 
 #include "base/assert.hpp"
 
+#include <cstdint>
+#include <functional>
+
 namespace platform
 {
 void HttpUploader::Upload() const
 {
-  // Dummy implementation.
   CHECK(m_callback, ());
+  auto env = jni::GetEnv();
+
+  CHECK(env, ());
+
+  static jmethodID const httpUploaderConstructor =
+    jni::GetConstructorID(env, g_httpUploaderClazz, "(Ljava/lang/String;Ljava/lang/String;"
+                                                    "[Lcom/mapswithme/util/KeyValue;"
+                                                    "[Lcom/mapswithme/util/KeyValue;"
+                                                    "Ljava/lang/String;Ljava/lang/String;)V");
+
+  jni::ScopedLocalRef<jstring> const method(env, jni::ToJavaString(env, m_method));
+  jni::ScopedLocalRef<jstring> const url(env, jni::ToJavaString(env, m_url));
+  jni::ScopedLocalRef<jobjectArray> const params(env, jni::ToKeyValueArray(env, m_params));
+  jni::ScopedLocalRef<jobjectArray> const headers(env, jni::ToKeyValueArray(env, m_headers));
+  jni::ScopedLocalRef<jstring> const fileKey(env, jni::ToJavaString(env, m_fileKey));
+  jni::ScopedLocalRef<jstring> const filePath(env, jni::ToJavaString(env, m_filePath));
+
+  jni::ScopedLocalRef<jobject> const httpUploaderObject(
+    env, env->NewObject(g_httpUploaderClazz, httpUploaderConstructor, method.get(), url.get(),
+                        params.get(), headers.get(), fileKey.get(), filePath.get()));
+
+  static jmethodID const uploadId = jni::GetMethodID(env, httpUploaderObject, "upload", "()I");
+
+  m_callback(env->CallIntMethod(httpUploaderObject, uploadId), "dummy");
 }
 } // namespace platform
diff --git a/android/jni/com/mapswithme/util/HttpClient.cpp b/android/jni/com/mapswithme/util/HttpClient.cpp
index 9302a5c309..aa1f0514e0 100644
--- a/android/jni/com/mapswithme/util/HttpClient.cpp
+++ b/android/jni/com/mapswithme/util/HttpClient.cpp
@@ -34,6 +34,7 @@ SOFTWARE.
 #include "base/logging.hpp"
 
 #include <string>
+#include <iterator>
 #include <unordered_map>
 
 DECLARE_EXCEPTION(JniException, RootException);
@@ -103,22 +104,12 @@ void SetHeaders(ScopedEnv & env, jobject const params,
   if (headers.empty())
     return;
 
-  static jmethodID const headerInit = jni::GetConstructorID(
-      env.get(), g_httpHeaderClazz, "(Ljava/lang/String;Ljava/lang/String;)V");
   static jmethodID const setHeaders = env->GetMethodID(
-      g_httpParamsClazz, "setHeaders", "([Lcom/mapswithme/util/HttpClient$HttpHeader;)V");
+      g_httpParamsClazz, "setHeaders", "([Lcom/mapswithme/util/KeyValue;)V");
 
   RethrowOnJniException(env);
 
-  using HeaderPair = std::unordered_map<std::string, std::string>::value_type;
-  auto headerFunc = [](JNIEnv * env, HeaderPair const & item)
-  {
-    jni::TScopedLocalRef first(env, jni::ToJavaString(env, item.first));
-    jni::TScopedLocalRef second(env, jni::ToJavaString(env, item.second));
-    return env->NewObject(g_httpHeaderClazz, headerInit, first.get(), second.get());
-  };
-  jni::TScopedLocalObjectArrayRef jHeaders(env.get(), jni::ToJavaArray(env.get(), g_httpHeaderClazz,
-                                           headers, headerFunc));
+  jni::TScopedLocalObjectArrayRef jHeaders(env.get(), jni::ToKeyValueArray(env.get(), headers));
   env->CallVoidMethod(params, setHeaders, jHeaders.get());
   RethrowOnJniException(env);
 }
@@ -127,8 +118,6 @@ void LoadHeaders(ScopedEnv & env, jobject const params, std::unordered_map<std::
 {
   static jmethodID const getHeaders =
       env->GetMethodID(g_httpParamsClazz, "getHeaders", "()[Ljava/lang/Object;");
-  static jfieldID const keyId = env->GetFieldID(g_httpHeaderClazz, "key", "Ljava/lang/String;");
-  static jfieldID const valueId = env->GetFieldID(g_httpHeaderClazz, "value", "Ljava/lang/String;");
 
   jni::ScopedLocalRef<jobjectArray> const headersArray(
       env.get(), static_cast<jobjectArray>(env->CallObjectMethod(params, getHeaders)));
@@ -136,20 +125,8 @@ void LoadHeaders(ScopedEnv & env, jobject const params, std::unordered_map<std::
   RethrowOnJniException(env);
 
   headers.clear();
-  int const length = env->GetArrayLength(headersArray.get());
-  for (size_t i = 0; i < length; ++i)
-  {
-    jni::ScopedLocalRef<jobject> const headerEntry(
-        env.get(), env->GetObjectArrayElement(headersArray.get(), i));
+  jni::ToNativekeyValueContainer(env.get(), headersArray, std::inserter(headers, headers.end()));
 
-    jni::ScopedLocalRef<jstring> const key(
-        env.get(), static_cast<jstring>(env->GetObjectField(headerEntry.get(), keyId)));
-    jni::ScopedLocalRef<jstring> const value(
-        env.get(), static_cast<jstring>(env->GetObjectField(headerEntry.get(), valueId)));
-
-    headers.emplace(jni::ToNativeString(env.get(), key.get()),
-                    jni::ToNativeString(env.get(), value.get()));
-  }
   RethrowOnJniException(env);
 }
 
diff --git a/android/src/com/mapswithme/util/HttpClient.java b/android/src/com/mapswithme/util/HttpClient.java
index f4dd464eb0..596acb1ac9 100644
--- a/android/src/com/mapswithme/util/HttpClient.java
+++ b/android/src/com/mapswithme/util/HttpClient.java
@@ -97,7 +97,7 @@ public final class HttpClient
       if (!TextUtils.isEmpty(p.cookies))
         connection.setRequestProperty("Cookie", p.cookies);
 
-      for (HttpHeader header : p.headers)
+      for (KeyValue header : p.headers)
       {
         connection.setRequestProperty(header.key, header.value);
       }
@@ -163,14 +163,14 @@ public final class HttpClient
           if (header.getKey() == null || header.getValue() == null)
             continue;
 
-          p.headers.add(new HttpHeader(header.getKey().toLowerCase(), TextUtils.join(", ", header.getValue())));
+          p.headers.add(new KeyValue(header.getKey().toLowerCase(), TextUtils.join(", ", header.getValue())));
         }
       }
       else
       {
         List<String> cookies = connection.getHeaderFields().get("Set-Cookie");
         if (cookies != null)
-          p.headers.add(new HttpHeader("Set-Cookie", TextUtils.join(", ", cookies)));
+          p.headers.add(new KeyValue("Set-Cookie", TextUtils.join(", ", cookies)));
       }
 
       OutputStream ostream;
@@ -244,21 +244,9 @@ public final class HttpClient
     return url.replaceAll("(token|password|key)=([^&]+)", "***");
   }
 
-  private static class HttpHeader
-  {
-    HttpHeader(@NonNull String key, @NonNull String value)
-    {
-      this.key = key;
-      this.value = value;
-    }
-
-    public String key;
-    public String value;
-  }
-
   private static class Params
   {
-    public void setHeaders(@NonNull HttpHeader[] array)
+    public void setHeaders(@NonNull KeyValue[] array)
     {
       headers = new ArrayList<>(Arrays.asList(array));
     }
@@ -282,7 +270,7 @@ public final class HttpClient
     // Received data is stored here if not null or in data otherwise.
     String outputFilePath;
     String cookies;
-    ArrayList<HttpHeader> headers = new ArrayList<>();
+    ArrayList<KeyValue> headers = new ArrayList<>();
     int httpResponseCode = -1;
     boolean followRedirects = true;
     boolean loadHeaders;
diff --git a/android/src/com/mapswithme/util/HttpUploader.java b/android/src/com/mapswithme/util/HttpUploader.java
new file mode 100644
index 0000000000..7f3dad2146
--- /dev/null
+++ b/android/src/com/mapswithme/util/HttpUploader.java
@@ -0,0 +1,41 @@
+package com.mapswithme.util;
+
+import android.support.annotation.NonNull;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+
+final class HttpUploader
+{
+  @NonNull
+  private final String mMethod;
+  @NonNull
+  private final String mUrl;
+  @NonNull
+  private final ArrayList<KeyValue> mParams;
+  @NonNull
+  private final ArrayList<KeyValue> mHeaders;
+  @NonNull
+  private final String mFileKey;
+  @NonNull
+  private final String mFilePath;
+
+  @SuppressWarnings("unused")
+  private HttpUploader(@NonNull String method, @NonNull String url, @NonNull KeyValue[] params,
+                       @NonNull KeyValue[] headers, @NonNull String fileKey, @NonNull String filePath)
+  {
+    mMethod = method;
+    mUrl = url;
+    mParams = new ArrayList<>(Arrays.asList(params));
+    mHeaders = new ArrayList<>(Arrays.asList(headers));
+    mFileKey = fileKey;
+    mFilePath = filePath;
+  }
+
+  @SuppressWarnings("unused")
+  private int upload()
+  {
+    // Dummy. Error code 200 - Http OK.
+    return 200;
+  }
+}
diff --git a/android/src/com/mapswithme/util/KeyValue.java b/android/src/com/mapswithme/util/KeyValue.java
new file mode 100644
index 0000000000..ce052e5e81
--- /dev/null
+++ b/android/src/com/mapswithme/util/KeyValue.java
@@ -0,0 +1,17 @@
+package com.mapswithme.util;
+
+import android.support.annotation.NonNull;
+
+final class KeyValue
+{
+  KeyValue(@NonNull String key, @NonNull String value)
+  {
+    this.key = key;
+    this.value = value;
+  }
+
+  @NonNull
+  public final String key;
+  @NonNull
+  public final String value;
+}
diff --git a/platform/http_uploader.hpp b/platform/http_uploader.hpp
index 50ab5c0669..96d74be2e1 100644
--- a/platform/http_uploader.hpp
+++ b/platform/http_uploader.hpp
@@ -1,5 +1,6 @@
 #pragma once
 
+#include <cstdint>
 #include <functional>
 #include <map>
 #include <string>