这是JDK1.6/JDK1.7中Swing中的一个bug，而不是JDK1.5中的bug吗？

我有一个应用程序，GUI是用JavaSwingJDK1.5开发的。我计划将JDK升级到JDK1.6，但这样做会给我带来问题

问题陈述：如果我打开几个对话框（比如10）并处理它们，然后调用方法“getOwnedWindows（）”，它在JDK1.5中返回0，但在JDK1.6中返回10。在JDK1.6中，它返回10，我的设置焦点的算法无法正常工作，因为它能够找到invlay/disposed对话框并尝试在其上设置焦点，但不能在正确有效的对话框或组件上设置焦点，因为算法使用getOwnedWindows（）来获取有效且当前打开的对话框

有人能给我建议在JDK1.6中避免这个问题的解决方法吗

下面的代码可以演示这个问题

自定义对话框类： Java代码：

import javax.swing.JDialog;
import java.awt.event.ActionListener;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JButton;
import java.awt.event.ActionEvent;

public class CustomDialog extends JDialog implements ActionListener {
    private JPanel myPanel = null;
    private JButton yesButton = null;
    private JButton noButton = null;
    private boolean answer = false;
    public boolean getAnswer() { return answer; }

    public CustomDialog(JFrame frame, boolean modal, String myMessage) {
    super(frame, modal);
    myPanel = new JPanel();
    getContentPane().add(myPanel);
    myPanel.add(new JLabel(myMessage));
    yesButton = new JButton("Yes");
    yesButton.addActionListener(this);
    myPanel.add(yesButton);
    noButton = new JButton("No");
    noButton.addActionListener(this);
    myPanel.add(noButton); 
    pack();
    setLocationRelativeTo(frame);
    setVisible(true);
    //System.out.println("Constrtuctor ends");
    }

    public void actionPerformed(ActionEvent e) {
    if(yesButton == e.getSource()) {
        System.err.println("User chose yes.");
        answer = true;
        //setVisible(false);
    }
    else if(noButton == e.getSource()) {
        System.err.println("User chose no.");
        answer = false;
        //setVisible(false);
    }
    }

    public void customFinalize() {
        try {
            finalize();
        } catch (Throwable e) {
            e.printStackTrace();
        }
    }
}

import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.JButton;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.ActionEvent;
import java.awt.FlowLayout;
import java.awt.Window;

public class TestTheDialog implements ActionListener {
    JFrame mainFrame = null;
    JButton myButton = null;
    JButton myButton_2 = null;

    public TestTheDialog() {
        mainFrame = new JFrame("TestTheDialog Tester");
        mainFrame.addWindowListener(new WindowAdapter() {
                public void windowClosing(WindowEvent e) {System.exit(0);}
            });
        myButton = new JButton("Test the dialog!");
        myButton_2 = new JButton("Print no. of owned Windows");
        myButton.addActionListener(this);
        myButton_2.addActionListener(this);
        mainFrame.setLocationRelativeTo(null);

        FlowLayout flayout = new FlowLayout();
        mainFrame.setLayout(flayout);

        mainFrame.getContentPane().add(myButton);
        mainFrame.getContentPane().add(myButton_2);

        mainFrame.pack();
        mainFrame.setVisible(true);
    }

    public void actionPerformed(ActionEvent e) {
        if(myButton == e.getSource()) {
            System.out.println("getOwnedWindows 1 " + mainFrame.getOwnedWindows().length);
            createMultipleDialogs();

            int i = 0;
            for (Window singleWindow : mainFrame.getOwnedWindows()) {
                System.out.println("getOwnedWindows " + i++ + " "
                        + singleWindow.isShowing() + " "
                        + singleWindow.isVisible() + " " + singleWindow);
            }
            System.out.println("getOwnedWindows 2 " + mainFrame.getOwnedWindows().length);
            //System.gc();
            System.out.println("getOwnedWindows 3 " + mainFrame.getOwnedWindows().length);
            //System.gc();
            System.out.println("getOwnedWindows 4 " + mainFrame.getOwnedWindows().length);
        } else if (myButton_2 == e.getSource()) {
            System.out.println("getOwnedWindows now: " + mainFrame.getOwnedWindows().length);
        }
    }

    public void createMultipleDialogs() {
        for (int a = 0; a < 10; a++) {
            CustomDialog myDialog = new CustomDialog(mainFrame, false,
                    "Do you like Java?");
            myDialog.dispose();
            myDialog.customFinalize();
        }
    }

    public static void main(String argv[]) {

        TestTheDialog tester = new TestTheDialog();
    }
}

主要类别：

Java代码：

import javax.swing.JDialog;
import java.awt.event.ActionListener;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JButton;
import java.awt.event.ActionEvent;

public class CustomDialog extends JDialog implements ActionListener {
    private JPanel myPanel = null;
    private JButton yesButton = null;
    private JButton noButton = null;
    private boolean answer = false;
    public boolean getAnswer() { return answer; }

    public CustomDialog(JFrame frame, boolean modal, String myMessage) {
    super(frame, modal);
    myPanel = new JPanel();
    getContentPane().add(myPanel);
    myPanel.add(new JLabel(myMessage));
    yesButton = new JButton("Yes");
    yesButton.addActionListener(this);
    myPanel.add(yesButton);
    noButton = new JButton("No");
    noButton.addActionListener(this);
    myPanel.add(noButton); 
    pack();
    setLocationRelativeTo(frame);
    setVisible(true);
    //System.out.println("Constrtuctor ends");
    }

    public void actionPerformed(ActionEvent e) {
    if(yesButton == e.getSource()) {
        System.err.println("User chose yes.");
        answer = true;
        //setVisible(false);
    }
    else if(noButton == e.getSource()) {
        System.err.println("User chose no.");
        answer = false;
        //setVisible(false);
    }
    }

    public void customFinalize() {
        try {
            finalize();
        } catch (Throwable e) {
            e.printStackTrace();
        }
    }
}

import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.JButton;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.ActionEvent;
import java.awt.FlowLayout;
import java.awt.Window;

public class TestTheDialog implements ActionListener {
    JFrame mainFrame = null;
    JButton myButton = null;
    JButton myButton_2 = null;

    public TestTheDialog() {
        mainFrame = new JFrame("TestTheDialog Tester");
        mainFrame.addWindowListener(new WindowAdapter() {
                public void windowClosing(WindowEvent e) {System.exit(0);}
            });
        myButton = new JButton("Test the dialog!");
        myButton_2 = new JButton("Print no. of owned Windows");
        myButton.addActionListener(this);
        myButton_2.addActionListener(this);
        mainFrame.setLocationRelativeTo(null);

        FlowLayout flayout = new FlowLayout();
        mainFrame.setLayout(flayout);

        mainFrame.getContentPane().add(myButton);
        mainFrame.getContentPane().add(myButton_2);

        mainFrame.pack();
        mainFrame.setVisible(true);
    }

    public void actionPerformed(ActionEvent e) {
        if(myButton == e.getSource()) {
            System.out.println("getOwnedWindows 1 " + mainFrame.getOwnedWindows().length);
            createMultipleDialogs();

            int i = 0;
            for (Window singleWindow : mainFrame.getOwnedWindows()) {
                System.out.println("getOwnedWindows " + i++ + " "
                        + singleWindow.isShowing() + " "
                        + singleWindow.isVisible() + " " + singleWindow);
            }
            System.out.println("getOwnedWindows 2 " + mainFrame.getOwnedWindows().length);
            //System.gc();
            System.out.println("getOwnedWindows 3 " + mainFrame.getOwnedWindows().length);
            //System.gc();
            System.out.println("getOwnedWindows 4 " + mainFrame.getOwnedWindows().length);
        } else if (myButton_2 == e.getSource()) {
            System.out.println("getOwnedWindows now: " + mainFrame.getOwnedWindows().length);
        }
    }

    public void createMultipleDialogs() {
        for (int a = 0; a < 10; a++) {
            CustomDialog myDialog = new CustomDialog(mainFrame, false,
                    "Do you like Java?");
            myDialog.dispose();
            myDialog.customFinalize();
        }
    }

    public static void main(String argv[]) {

        TestTheDialog tester = new TestTheDialog();
    }
}

导入java.awt.event.ActionListener；
导入javax.swing.JFrame；
导入javax.swing.JButton；
导入java.awt.event.WindowAdapter；
导入java.awt.event.WindowEvent；
导入java.awt.event.ActionEvent；
导入java.awt.FlowLayout；
导入java.awt.Window；
公共类TestTheDialog实现ActionListener{
JFrame=null；
JButton myButton=null；
JButton myButton_2=null；
公共测试对话{
大型机=新JFrame（“测试对话测试仪”）；
mainFrame.addWindowListener（新的WindowAdapter（）{
public void windowClosing（WindowEvent e）{System.exit（0）；}
});
myButton=newjbutton（“测试对话框！”）；
myButton_2=新的JButton（“自有窗口的打印编号”）；
myButton.addActionListener（这个）；
myButton_2.addActionListener（此）；
mainFrame.setLocationRelativeTo（空）；
FlowLayout flayout=新的FlowLayout（）；
大型机设置布局（flayout）；
mainFrame.getContentPane（）.add（myButton）；
mainFrame.getContentPane（）.add（myButton_2）；
mainFrame.pack（）；
mainFrame.setVisible（true）；
}
已执行的公共无效操作（操作事件e）{
如果（myButton==e.getSource（））{
System.out.println（“getOwnedWindows 1”+mainFrame.getOwnedWindows（）.length）；
createMultipleDialogs（）；
int i=0；
对于（单一窗口：mainFrame.getOwnedWindows（））{
System.out.println（“getOwnedWindows”+i++”
+singleWindow.isShowing（）+“”
+isVisible（）+“”+singleWindow）；
}
System.out.println（“getOwnedWindows 2”+mainFrame.getOwnedWindows（）.length）；
//gc（）；
System.out.println（“getOwnedWindows 3”+mainFrame.getOwnedWindows（）.length）；
//gc（）；
System.out.println（“getOwnedWindows 4”+mainFrame.getOwnedWindows（）.length）；
}else if（myButton_2==e.getSource（））{
System.out.println（“getOwnedWindows now:+mainFrame.getOwnedWindows（）.length”）；
}
}
public void createMultipleDialogs（）{
对于（int a=0；a<10；a++）{
CustomDialog myDialog=新建CustomDialog（大型机，错误，
“你喜欢Java吗？”）；
myDialog.dispose（）；
myDialog.customFinalize（）；
}
}
公共静态void main（字符串argv[]）{
TestTheDialog tester=新建TestTheDialog（）；
}
}

运行上述代码会为JDK1.5和JDK1.6提供不同的输出

我将感谢你在这方面的帮助

---

谢谢

“有人能给我建议解决方法吗？”请明确提及对话框。虽然我认为这是“明智的做法”，而不是“解决办法”。你能解释得多一点吗？你不懂什么？具体点。出于这个确切的原因，在查询中增加更多细节而不是减少细节是值得的。