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/*
  @test
  @bug 4219523
  @summary Tests if JMenu completely uninstalls UI
  @run main bug4219523
*/

import java.awt.Insets;

import javax.swing.JMenuItem;
import javax.swing.plaf.basic.BasicMenuItemUI;


public class bug4219523 {
    public static void main(String args[]) {
        class TestMenuItem extends JMenuItem {
            public int SetMarginCalls;
            TestMenuItem(){
                super();
                SetMarginCalls = 0;
            }
            public void setMargin(Insets m){
                if (m == null) SetMarginCalls++;
                super.setMargin(m);
            }
        }
        BasicMenuItemUI bmiui = new BasicMenuItemUI();
        TestMenuItem mi = new TestMenuItem();
        bmiui.installUI(mi);
        int installCall = mi.SetMarginCalls;
        bmiui.uninstallUI(mi);
        if (mi.SetMarginCalls <= installCall) {
            throw new Error("Test failed: Uninstall UI does " +
                    "not uninstall DefaultMargin properties");
        }
    }
}