[java] Fixing GeckoDriverService builder to use passed capabilities

Author: barancev

java/client/src/org/openqa/selenium/firefox/GeckoDriverService.java

@@ -91,7 +91,7 @@ static GeckoDriverService createDefaultService(Capabilities caps) {
       builder.usingFirefoxBinary(actualBinary);
     }
 
-    return new Builder().build();
+    return builder.build();
   }
 
   @Override
@@ -183,6 +183,7 @@ protected ImmutableList<String> createArgs() {
     protected GeckoDriverService createDriverService(File exe, int port,
                                                      ImmutableList<String> args,
                                                      ImmutableMap<String, String> environment) {
+      System.err.println("Starting GeckoDriverService on port " + port);
       try {
         GeckoDriverService service = new GeckoDriverService(exe, port, args, environment);
         String firefoxLogFile = System.getProperty(FirefoxDriver.SystemProperty.BROWSER_LOGFILE);