[java] give the driver some time to terminate graceful

Author: joerg1985

java/src/org/openqa/selenium/remote/service/DriverService.java

@@ -298,6 +298,11 @@ public void stop() {
         try {
           URL killUrl = new URL(url.toString() + "/shutdown");
           new UrlChecker().waitUntilUnavailable(3, SECONDS, killUrl);
+          try {
+            process.waitFor(Duration.ofSeconds(10));
+          } catch (InterruptedException e) {
+            Thread.currentThread().interrupt();
+          }
         } catch (MalformedURLException e) {
           toThrow = new WebDriverException(e);
         } catch (UrlChecker.TimeoutException e) {