src/java.desktop/macosx/classes/sun/lwawt/macosx/CPlatformView.java

@@ -192,11 +192,12 @@
         int absX = event.getAbsX();
         int absY = event.getAbsY();
 
         if (event.getType() == CocoaConstants.NSScrollWheel) {
             responder.handleScrollEvent(x, y, absX, absY, event.getModifierFlags(),
-                                        event.getScrollDeltaX(), event.getScrollDeltaY());
+                                        event.getScrollDeltaX(), event.getScrollDeltaY(),
+                                        event.getScrollPhase());
         } else {
             responder.handleMouseEvent(event.getType(), event.getModifierFlags(), event.getButtonNumber(),
                                        event.getClickCount(), x, y,
                                        absX, absY);
         }