#594 FIX

build.gradle

@@ -54,7 +54,7 @@ compileJava {
 }
 
 dependencies {
-    compile('org.seleniumhq.selenium:selenium-java:3.2.0'){
+    compile('org.seleniumhq.selenium:selenium-java:3.3.1'){
         exclude module: 'cglib'
         exclude group: 'com.google.code.gson'
     }

src/main/java/io/appium/java_client/AppiumCommandInfo.java

@@ -0,0 +1,45 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * See the NOTICE file distributed with this work for additional
+ * information regarding copyright ownership.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.appium.java_client;
+
+import org.openqa.selenium.remote.CommandInfo;
+import org.openqa.selenium.remote.http.HttpMethod;
+
+public class AppiumCommandInfo extends CommandInfo {
+    private final String url;
+    private final HttpMethod method;
+
+    /**
+     * It conntains method and URL of the command.
+     *
+     * @param url command URL
+     * @param method is http-method
+     */
+    public AppiumCommandInfo(String url, HttpMethod method) {
+        super(url, method);
+        this.url = url;
+        this.method = method;
+    }
+
+    public String getUrl() {
+        return url;
+    }
+
+    public HttpMethod getMethod() {
+        return method;
+    }
+}

src/main/java/io/appium/java_client/AppiumDriver.java

@@ -44,7 +44,6 @@
 import org.openqa.selenium.remote.DriverCommand;
 import org.openqa.selenium.remote.ErrorHandler;
 import org.openqa.selenium.remote.ExecuteMethod;
-import org.openqa.selenium.remote.HttpCommandExecutor;
 import org.openqa.selenium.remote.Response;
 import org.openqa.selenium.remote.html5.RemoteLocationContext;
 import org.openqa.selenium.remote.http.HttpClient;
@@ -85,7 +84,7 @@ public class AppiumDriver<T extends WebElement>
      * @param capabilities take a look
      *                     at {@link org.openqa.selenium.Capabilities}
      */
-    public AppiumDriver(HttpCommandExecutor executor, Capabilities capabilities) {
+    public AppiumDriver(AppiumCommandExecutor executor, Capabilities capabilities) {
         super(executor, capabilities);
         this.executeMethod = new AppiumExecutionMethod(this);
         locationContext = new RemoteLocationContext(executeMethod);

src/main/java/io/appium/java_client/MobileCommand.java

@@ -19,7 +19,6 @@
 import com.google.common.collect.ImmutableMap;
 
 import org.apache.commons.lang3.StringUtils;
-import org.openqa.selenium.remote.CommandInfo;
 import org.openqa.selenium.remote.http.HttpMethod;
 
 import java.util.AbstractMap;
@@ -77,7 +76,7 @@ public class MobileCommand {
     protected static final String GET_SETTINGS;
     protected static final String SET_SETTINGS;
 
-    public static final  Map<String, CommandInfo> commandRepository;
+    public static final  Map<String, AppiumCommandInfo> commandRepository;
 
     static {
         RESET = "reset";
@@ -184,8 +183,8 @@ public class MobileCommand {
      * @param url is the command URL
      * @return an instance of {@link org.openqa.selenium.remote.CommandInfo}
      */
-    public static CommandInfo getC(String url) {
-        return new CommandInfo(url, HttpMethod.GET);
+    public static AppiumCommandInfo getC(String url) {
+        return new AppiumCommandInfo(url, HttpMethod.GET);
     }
 
     /**
@@ -194,8 +193,8 @@ public static CommandInfo getC(String url) {
      * @param url is the command URL
      * @return an instance of {@link org.openqa.selenium.remote.CommandInfo}
      */
-    public static CommandInfo postC(String url) {
-        return new CommandInfo(url, HttpMethod.POST);
+    public static AppiumCommandInfo postC(String url) {
+        return new AppiumCommandInfo(url, HttpMethod.POST);
     }
 
     /**
@@ -204,8 +203,8 @@ public static CommandInfo postC(String url) {
      * @param url is the command URL
      * @return an instance of {@link org.openqa.selenium.remote.CommandInfo}
      */
-    public static CommandInfo deleteC(String url) {
-        return new CommandInfo(url, HttpMethod.DELETE);
+    public static AppiumCommandInfo deleteC(String url) {
+        return new AppiumCommandInfo(url, HttpMethod.DELETE);
     }
 
     /**

src/main/java/io/appium/java_client/android/AndroidDriver.java

@@ -25,12 +25,12 @@
 import io.appium.java_client.FindsByAndroidUIAutomator;
 import io.appium.java_client.PressesKeyCode;
 import io.appium.java_client.TouchAction;
+import io.appium.java_client.remote.AppiumCommandExecutor;
 import io.appium.java_client.remote.MobilePlatform;
 import io.appium.java_client.service.local.AppiumDriverLocalService;
 import io.appium.java_client.service.local.AppiumServiceBuilder;
 import org.openqa.selenium.Capabilities;
 import org.openqa.selenium.WebElement;
-import org.openqa.selenium.remote.HttpCommandExecutor;
 import org.openqa.selenium.remote.http.HttpClient;
 
 import java.net.URL;
@@ -59,7 +59,7 @@ public class AndroidDriver<T extends WebElement>
      * @param capabilities take a look
      *                     at {@link org.openqa.selenium.Capabilities}
      */
-    public AndroidDriver(HttpCommandExecutor executor, Capabilities capabilities) {
+    public AndroidDriver(AppiumCommandExecutor executor, Capabilities capabilities) {
         super(executor, substituteMobilePlatform(capabilities, ANDROID_PLATFORM));
     }
 

src/main/java/io/appium/java_client/ios/IOSDriver.java

@@ -23,14 +23,14 @@
 import io.appium.java_client.FindsByIosUIAutomation;
 import io.appium.java_client.HidesKeyboardWithKeyName;
 import io.appium.java_client.TouchAction;
+import io.appium.java_client.remote.AppiumCommandExecutor;
 import io.appium.java_client.remote.MobilePlatform;
 import io.appium.java_client.service.local.AppiumDriverLocalService;
 import io.appium.java_client.service.local.AppiumServiceBuilder;
 import org.openqa.selenium.Alert;
 import org.openqa.selenium.Capabilities;
 import org.openqa.selenium.WebElement;
 import org.openqa.selenium.remote.DriverCommand;
-import org.openqa.selenium.remote.HttpCommandExecutor;
 import org.openqa.selenium.remote.Response;
 import org.openqa.selenium.remote.http.HttpClient;
 import org.openqa.selenium.security.Credentials;
@@ -61,7 +61,7 @@ public class IOSDriver<T extends WebElement>
      * @param capabilities take a look
      *                     at {@link org.openqa.selenium.Capabilities}
      */
-    public IOSDriver(HttpCommandExecutor executor, Capabilities capabilities) {
+    public IOSDriver(AppiumCommandExecutor executor, Capabilities capabilities) {
         super(executor, substituteMobilePlatform(capabilities, IOS_PLATFORM));
     }
 

src/main/java/io/appium/java_client/remote/AndroidMobileCapabilityType.java

@@ -241,7 +241,7 @@ public interface AndroidMobileCapabilityType extends CapabilityType {
     String SELENDROID_PORT = "selendroidPort";
 
     /**
-     * The port number, which being used by UIAutomator2
+     * The port number, which being used by UIAutomator2.
      */
     String SYSTEM_PORT = "systemPort";
 }

src/main/java/io/appium/java_client/remote/AppiumCommandExecutor.java

@@ -16,16 +16,29 @@
 
 package io.appium.java_client.remote;
 
+import static com.google.common.base.Preconditions.checkNotNull;
+import static com.google.common.base.Throwables.getRootCause;
+import static com.google.common.base.Throwables.throwIfUnchecked;
+import static org.openqa.selenium.remote.DriverCommand.GET_ALL_SESSIONS;
+import static org.openqa.selenium.remote.DriverCommand.NEW_SESSION;
+import static org.openqa.selenium.remote.DriverCommand.QUIT;
 
-import com.google.common.base.Throwables;
-
+import io.appium.java_client.AppiumCommandInfo;
+import org.openqa.selenium.NoSuchSessionException;
+import org.openqa.selenium.SessionNotCreatedException;
+import org.openqa.selenium.UnsupportedCommandException;
 import org.openqa.selenium.WebDriverException;
 import org.openqa.selenium.remote.Command;
-import org.openqa.selenium.remote.CommandInfo;
+import org.openqa.selenium.remote.CommandCodec;
+import org.openqa.selenium.remote.CommandExecutor;
+import org.openqa.selenium.remote.Dialect;
 import org.openqa.selenium.remote.DriverCommand;
-import org.openqa.selenium.remote.HttpCommandExecutor;
+import org.openqa.selenium.remote.HttpSessionId;
 import org.openqa.selenium.remote.Response;
+import org.openqa.selenium.remote.ResponseCodec;
 import org.openqa.selenium.remote.http.HttpClient;
+import org.openqa.selenium.remote.http.HttpRequest;
+import org.openqa.selenium.remote.http.HttpResponse;
 import org.openqa.selenium.remote.internal.ApacheHttpClient;
 import org.openqa.selenium.remote.service.DriverService;
 
@@ -34,41 +47,121 @@
 import java.net.URL;
 import java.util.Map;
 
-public class AppiumCommandExecutor extends HttpCommandExecutor {
+public class AppiumCommandExecutor implements CommandExecutor {
 
-    private final DriverService service;
+    private final URL remoteServer;
+    private final HttpClient client;
+    private final Map<String, AppiumCommandInfo> additionalCommands;
+    private CommandCodec<HttpRequest> commandCodec;
+    private ResponseCodec<HttpResponse> responseCodec;
+    private DriverService service;
 
-    public AppiumCommandExecutor(Map<String, CommandInfo> additionalCommands,
+    /**
+     * Cretes an instance that sends requests and receives responses.
+     * 
+     * @param additionalCommands is the mapped command repository
+     * @param addressOfRemoteServer is the url to connect to the Appium remote/local server
+     * @param httpClientFactory is the http client factory
+     */
+    public AppiumCommandExecutor(Map<String, AppiumCommandInfo> additionalCommands,
         URL addressOfRemoteServer, HttpClient.Factory httpClientFactory) {
-        super(additionalCommands, addressOfRemoteServer, httpClientFactory);
-        service = null;
+        checkNotNull(addressOfRemoteServer);
+        remoteServer = addressOfRemoteServer;
+        this.additionalCommands = additionalCommands;
+        this.client = httpClientFactory.createClient(remoteServer);
     }
 
-    public AppiumCommandExecutor(Map<String, CommandInfo> additionalCommands, DriverService service,
+    public AppiumCommandExecutor(Map<String, AppiumCommandInfo> additionalCommands, DriverService service,
         HttpClient.Factory httpClientFactory) {
-        super(additionalCommands, service.getUrl(), httpClientFactory);
+        this(additionalCommands, service.getUrl(), httpClientFactory);
         this.service = service;
     }
 
-    public AppiumCommandExecutor(Map<String, CommandInfo> additionalCommands,
+    public AppiumCommandExecutor(Map<String, AppiumCommandInfo> additionalCommands,
         URL addressOfRemoteServer) {
         this(additionalCommands, addressOfRemoteServer, new ApacheHttpClient.Factory());
     }
 
-    public AppiumCommandExecutor(Map<String, CommandInfo> additionalCommands,
+    public AppiumCommandExecutor(Map<String, AppiumCommandInfo> additionalCommands,
         DriverService service) {
         this(additionalCommands, service, new ApacheHttpClient.Factory());
     }
 
+    public URL getAddressOfRemoteServer() {
+        return remoteServer;
+    }
+
+    private Response doExecute(Command command) throws IOException, WebDriverException {
+        if (command.getSessionId() == null) {
+            if (QUIT.equals(command.getName())) {
+                return new Response();
+            }
+            if (!GET_ALL_SESSIONS.equals(command.getName())
+                    && !NEW_SESSION.equals(command.getName())) {
+                throw new NoSuchSessionException(
+                        "Session ID is null. Using WebDriver after calling quit()?");
+            }
+        }
+
+        if (NEW_SESSION.equals(command.getName())) {
+            if (commandCodec != null) {
+                throw new SessionNotCreatedException("Session already exists");
+            }
+            AppiumProtocolHandShake handshake = new AppiumProtocolHandShake();
+            AppiumProtocolHandShake.Result result = handshake.createSession(client, command);
+            Dialect dialect = result.getDialect();
+            commandCodec = dialect.getCommandCodec();
+
+            additionalCommands.forEach((key, value) -> {
+                checkNotNull(key);
+                checkNotNull(value);
+                commandCodec.defineCommand(key, value.getMethod(), value.getUrl());
+            } );
+
+            responseCodec = dialect.getResponseCodec();
+            return result.createResponse();
+        }
+
+        if (commandCodec == null || responseCodec == null) {
+            throw new WebDriverException(
+                    "No command or response codec has been defined. Unable to proceed");
+        }
+
+        HttpRequest httpRequest = commandCodec.encode(command);
+        try {
+            HttpResponse httpResponse = client.execute(httpRequest, true);
+
+            Response response = responseCodec.decode(httpResponse);
+            if (response.getSessionId() == null) {
+                if (httpResponse.getTargetHost() != null) {
+                    response.setSessionId(HttpSessionId.getSessionId(httpResponse.getTargetHost()));
+                } else {
+                    response.setSessionId(command.getSessionId().toString());
+                }
+            }
+            if (QUIT.equals(command.getName())) {
+                client.close();
+            }
+            return response;
+        } catch (UnsupportedCommandException e) {
+            if (e.getMessage() == null || "".equals(e.getMessage())) {
+                throw new UnsupportedOperationException(
+                        "No information from server. Command name was: " + command.getName(),
+                        e.getCause());
+            }
+            throw e;
+        }
+    }
+
     @Override public Response execute(Command command) throws IOException, WebDriverException {
         if (DriverCommand.NEW_SESSION.equals(command.getName()) && service != null) {
             service.start();
         }
 
         try {
-            return super.execute(command);
+            return doExecute(command);
         } catch (Throwable t) {
-            Throwable rootCause = Throwables.getRootCause(t);
+            Throwable rootCause = getRootCause(t);
             if (rootCause instanceof ConnectException
                 && rootCause.getMessage().contains("Connection refused")
                 && service != null) {
@@ -80,7 +173,7 @@ public AppiumCommandExecutor(Map<String, CommandInfo> additionalCommands,
                     throw new WebDriverException("The appium server has accidentally died!", t);
                 }
             }
-            Throwables.propagateIfPossible(t);
+            throwIfUnchecked(t);
             throw new WebDriverException(t);
         } finally {
             if (DriverCommand.QUIT.equals(command.getName()) && service != null) {