Use fallback actions if a deprecated constructor was used.

this.driver may be null if one of the deprecated Actions constructors was used.

Author: juangj

java/client/src/org/openqa/selenium/interactions/Actions.java

@@ -627,6 +627,12 @@ private BuiltAction(WebDriver driver, Map<InputSource, Sequence> sequences, Acti
 
     @Override
     public void perform() {
+      if (driver == null) {
+        // One of the deprecated constructors was used. Fall back to the old way for now.
+        fallBack.perform();
+        return;
+      }
+
       try {
         ((Interactive) driver).perform(sequences.values());
       } catch (ClassCastException | UnsupportedCommandException e) {