FULL PRODUCT VERSION :
java version "1.7.0_40"
Java(TM) SE Runtime Environment (build 1.7.0_40-b43)
Java HotSpot(TM) 64-Bit Server VM (build 24.0-b56, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Linux senleft-ThinkStation-S20 3.2.0-54-generic #82-Ubuntu SMP Tue Sep 10 20:08:42 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux


A DESCRIPTION OF THE PROBLEM :
False JWindow windowLostFocus event generated while all operations made within the same JWindow

REGRESSION. Last worked in version 6u43

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Create JWindow and place any component to it. Source code for an executable test case contains JWindow and JList. Selected some list items consequently.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
windowLostFocus event don't expected for all operations within JWindow.
Below is a output for jdk1.6.31 version
listSelectionListener:valueChanged
mousePressed
windowGainedFocus
listSelectionListener:valueChanged
Selected: 3
***************
listSelectionListener:valueChanged
mousePressed
listSelectionListener:valueChanged
Selected: 7
***************
ACTUAL -
windowLostFocus generated between two consequently list selection operation within the same JWindow.
Below is a output for jdk1.6.40 version
jdk1.7.40
listSelectionListener:valueChanged
mousePressed
windowGainedFocus
listSelectionListener:valueChanged
Selected: 3
***************
windowLostFocus
listSelectionListener:valueChanged
mousePressed
windowGainedFocus
listSelectionListener:valueChanged
Selected: 7
***************

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
public class MouseAdapterDemo extends JFrame{

    private final DefaultListModel dataModel = new DefaultListModel();
    private JList jList = new JList(dataModel);

    private ListSelectionListener listSelectionListener = new ListSelectionListener() {

        public void valueChanged(ListSelectionEvent e) {
            System.out.println("listSelectionListener:valueChanged");
            if (e.getValueIsAdjusting()) {
                return;
            }
            System.out.println("Selected: " + jList.getSelectedValue());
            System.out.println("***************");

        }
    };

    public MouseAdapterDemo() {
        super("MouseAdapterDemo");
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        setSize(400, 300);
        setVisible(true);
        CustomJWindow window = new CustomJWindow(this);
        window.setAlwaysOnTop(true);
        window.setSize(100, 300);
        window.setVisible(true);
        initList();
        window.add(jList);
    }

    private void initList() {
        DefaultListModel model = (DefaultListModel) jList.getModel();
        for (int i = 0; i < 10; i++) {
            model.addElement(i);
        }
        jList.addMouseListener(new MouseL());
        jList.addListSelectionListener(listSelectionListener);
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                new MouseAdapterDemo();
            }
        });
    }

    class MouseL extends MouseAdapter {
        @Override
        public void mousePressed(MouseEvent e) {
            System.out.println("mousePressed");
        }
    }

    class CustomJWindow extends JWindow {

        public CustomJWindow(Frame owner) {
            super(owner);
            addWindowFocusListener(focusListener);
        }

        private WindowFocusListener focusListener = new WindowFocusListener() {

            public void windowGainedFocus(WindowEvent e) {
                System.out.println("windowGainedFocus");
            }

            public void windowLostFocus(WindowEvent e) {
                System.out.println("windowLostFocus");
            }
        };
    }


}
---------- END SOURCE ----------