--- a/jdk/src/share/classes/javax/swing/plaf/basic/BasicScrollPaneUI.java	Wed Jul 05 17:08:50 2017 +0200
+++ b/jdk/src/share/classes/javax/swing/plaf/basic/BasicScrollPaneUI.java	Wed Apr 14 15:28:37 2010 +0400
@@ -870,6 +870,8 @@
                     orientation = SwingConstants.HORIZONTAL;
                 }
 
+                e.consume();
+
                 if (e.getScrollType() == MouseWheelEvent.WHEEL_UNIT_SCROLL) {
                     JViewport vp = scrollpane.getViewport();
                     if (vp == null) { return; }