UIDefaultKeySizeTest.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is free software; you can redistribute it and/or modify it
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 *
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/*
 * @test
 * @bug 8146330
 * @summary Size of values returned by UIDefaults.keys() and
            UIDefaults.keySet() are different
 * @run main UIDefaultKeySizeTest
 */

import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import java.util.Enumeration;
import java.util.Iterator;

public class UIDefaultKeySizeTest {
    static Enumeration e;
    static Iterator itr;
    static boolean defaultTestFail, writeTestFail;

    public static void main(String[] args) throws Exception {
        UIManager.LookAndFeelInfo[] installedLookAndFeels;
        installedLookAndFeels = UIManager.getInstalledLookAndFeels();

        for (UIManager.LookAndFeelInfo LF : installedLookAndFeels) {
            UIManager.setLookAndFeel(LF.getClassName());

            defaultTestFail = keySizeTest();
            SwingUtilities.invokeAndWait(() -> {
                UIManager.getDefaults().put("TestKey","TestValue");
            });
            writeTestFail = keySizeTest();

            if(defaultTestFail && writeTestFail ) {
                throw new RuntimeException("Default key count and Write key"+
                        " count both are not same in keys() and keySet()");
            } else if(defaultTestFail || writeTestFail) {
                if(defaultTestFail) {
                    throw new RuntimeException("Default key count is not same"+
                            " in keys() and keySet()");
                } else {
                    throw new RuntimeException("Write key count is not same"+
                            " in keys() and keySet()");
                }
            }

            SwingUtilities.invokeAndWait(() -> {
                UIManager.getDefaults().remove("TestKey");
            });
        }
    }

    private static boolean keySizeTest() throws Exception {
        int keysCount = 0;
        int keySetCount = 0;
        SwingUtilities.invokeAndWait(() -> {
            e = UIManager.getDefaults().keys();
            itr = UIManager.getDefaults().keySet().iterator();
        });
        while (e.hasMoreElements()) {
            keysCount++;
            e.nextElement();
        }
        while (itr.hasNext()) {
            keySetCount++;
            itr.next();
        }
        return !(keysCount == keySetCount);
    }
}