updates and code style issue fixes

Author: TikhomirovSergey

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

@@ -21,6 +21,7 @@
 import static java.lang.String.format;
 import static java.nio.charset.StandardCharsets.UTF_8;
 import static java.util.Optional.ofNullable;
+import static java.util.logging.Logger.getLogger;
 import static org.openqa.selenium.remote.DriverCommand.NEW_SESSION;
 
 import com.google.common.base.Supplier;
@@ -172,7 +173,8 @@ public Result createSession(HttpClient client, Command command)
 
  return result.map(result1 -> {
  Result toReturn = result.get();
- System.out.print(format("Detected dialect: %s", toReturn.getDialect()));
+ getLogger(ProtocolHandshake.class.getName())
+ .info(format("Detected dialect: %s", toReturn.getDialect()));
  return toReturn;
  }).orElseThrow(() -> new SessionNotCreatedException(
  format("Unable to create new remote session. desired capabilities = %s", desired)));
@@ -200,7 +202,7 @@ public Result createSession(HttpClient client, Command command)
  }
 
  @Override
- public Response execute(Command command) throws WebDriverException, IOException {
+ public Response execute(Command command) throws WebDriverException {
  if (DriverCommand.NEW_SESSION.equals(command.getName())) {
  serviceOptional.ifPresent(driverService -> {
  try {