src/java.desktop/share/classes/javax/swing/plaf/basic/BasicSplitPaneUI.java

*** 1,7 ****
  /*
!  * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
--- 1,7 ----
  /*
!  * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
*** 25,34 ****
--- 25,36 ----
  
  
  package javax.swing.plaf.basic;
  
  
+ import sun.awt.AWTAccessor;
+ import sun.awt.AWTAccessor.ComponentAccessor;
  import sun.swing.DefaultLookup;
  import sun.swing.UIAction;
  import javax.swing.*;
  import javax.swing.border.Border;
  import java.awt.*;
*** 1189,1210 ****
  
      /**
       * Should be messaged before the dragging session starts, resets
       * lastDragLocation and dividerSize.
       */
-     @SuppressWarnings("deprecation")
      protected void startDragging() {
          Component       leftC = splitPane.getLeftComponent();
          Component       rightC = splitPane.getRightComponent();
          ComponentPeer   cPeer;
  
          beginDragDividerLocation = getDividerLocation(splitPane);
          draggingHW = false;
!         if(leftC != null && (cPeer = leftC.getPeer()) != null &&
             !(cPeer instanceof LightweightPeer)) {
              draggingHW = true;
!         } else if(rightC != null && (cPeer = rightC.getPeer()) != null
                    && !(cPeer instanceof LightweightPeer)) {
              draggingHW = true;
          }
          if(orientation == JSplitPane.HORIZONTAL_SPLIT) {
              setLastDragLocation(divider.getBounds().x);
--- 1191,1212 ----
  
      /**
       * Should be messaged before the dragging session starts, resets
       * lastDragLocation and dividerSize.
       */
      protected void startDragging() {
          Component       leftC = splitPane.getLeftComponent();
          Component       rightC = splitPane.getRightComponent();
          ComponentPeer   cPeer;
  
          beginDragDividerLocation = getDividerLocation(splitPane);
          draggingHW = false;
!         final ComponentAccessor acc = AWTAccessor.getComponentAccessor();
!         if(leftC != null && (cPeer = acc.getPeer(leftC)) != null &&
             !(cPeer instanceof LightweightPeer)) {
              draggingHW = true;
!         } else if(rightC != null && (cPeer = acc.getPeer(rightC)) != null
                    && !(cPeer instanceof LightweightPeer)) {
              draggingHW = true;
          }
          if(orientation == JSplitPane.HORIZONTAL_SPLIT) {
              setLastDragLocation(divider.getBounds().x);