Name: js151677 Date: 08/12/2004


FULL PRODUCT VERSION :
java version "1.5.0-beta2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta2-b51)
Java HotSpot(TM) Client VM (build 1.5.0-beta2-b51, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Windows 2000 Professional

EXTRA RELEVANT SYSTEM CONFIGURATION :
No other seemingly-pertinent information available.

A DESCRIPTION OF THE PROBLEM :
The following is a posting to the Java Developer's Forum which I made in an attempt to ascertain that this incident was actually a bug and not my fault. :)

*****

I started up a project of mine in Java 1.5 today and found that my GUI's L&F had been changed to OceanTheme by default. It looks pretty spiffy, but I'm not fond of the color choices (especially for the desktop background), so I decided to extend OceanTheme and replace many of its primary colors.

I have established the following in Java 1.5:

* Extending the DefaultMetalTheme class causes no problems but changes the appearance of the GUI back to the old Metal design.

* Extending the OceanTheme class is fine with basic components.

* Extending the OceanTheme class and using a JDesktopPane causes no problems either.

* Extending the OceanTheme class, creating a JDesktopPane, putting a JInternalFrame inside of it, and making it visible causes the following to happen:

System.err reports

[code]
ExtensionOfOceanTheme/icons/ocean/maximize.gif not found
ExtensionOfOceanTheme/icons/ocean/maximize-pressed.gif not found
[/code]


Then, I get the following exception:

[code]
Caused by: java.lang.IllegalArgumentException: null delegate icon argument
at javax.swing.plaf.IconUIResource.<init>(IconUIResource.java:49)
at javax.swing.plaf.metal.OceanTheme$IFIcon.<init>(OceanTheme.java:77)
at javax.swing.plaf.metal.OceanTheme$4.createValue(OceanTheme.java:204)
at javax.swing.UIDefaults.getFromHashtable(UIDefaults.java:183)
at javax.swing.UIDefaults.get(UIDefaults.java:128)
at javax.swing.MultiUIDefaults.get(MultiUIDefaults.java:44)
at javax.swing.UIDefaults.getIcon(UIDefaults.java:409)
at javax.swing.UIManager.getIcon(UIManager.java:613)
at javax.swing.plaf.basic.BasicInternalFrameTitlePane.installDefaults(BasicInternalFrameTitlePane.java:148)
at javax.swing.plaf.metal.MetalInternalFrameTitlePane.installDefaults(MetalInternalFrameTitlePane.java:94)
at javax.swing.plaf.basic.BasicInternalFrameTitlePane.installTitlePane(BasicInternalFrameTitlePane.java:97)
at javax.swing.plaf.basic.BasicInternalFrameTitlePane.<init>(BasicInternalFrameTitlePane.java:93)
at javax.swing.plaf.metal.MetalInternalFrameTitlePane.<init>(MetalInternalFrameTitlePane.java:81)
at javax.swing.plaf.metal.MetalInternalFrameUI.createNorthPane(MetalInternalFrameUI.java:120)
at javax.swing.plaf.basic.BasicInternalFrameUI.installComponents(BasicInternalFrameUI.java:171)
at javax.swing.plaf.basic.BasicInternalFrameUI.installUI(BasicInternalFrameUI.java:88)
at javax.swing.plaf.metal.MetalInternalFrameUI.installUI(MetalInternalFrameUI.java:54)
at javax.swing.JComponent.setUI(JComponent.java:650)
at javax.swing.JInternalFrame.setUI(JInternalFrame.java:326)
at javax.swing.JInternalFrame.updateUI(JInternalFrame.java:342)
at javax.swing.JInternalFrame.<init>(JInternalFrame.java:290)
at javax.swing.JInternalFrame.<init>(JInternalFrame.java:207)
[/code]


I've traced this execution path about and found that the resource manager is actually returning null for the two resources (maximize.gif and maximize-pressed.gif). My first thought was that those images are not in the JDK's resource kit, but the OceanTheme class itself works fine. I believe there may be a security/permissions sort of problem here... the extended class is not being permitted to access the GIF resource.

Can anyone confirm my beliefs here so I can report this as a bug?

Thanks!

REGRESSION. Last worked in version tiger-beta2

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Execute the following code:

[code]
MetalLookAndFeel.setCurrentTheme(new OceanTheme());
UIManager.setLookAndFeel(new MetalLookAndFeel());
[/code]

Then display a JInternalFrame. Nothing will go wrong.

Then, execute this code:

[code]
MetalLookAndFeel.setCurrentTheme(new OceanTheme()
{
});
UIManager.setLookAndFeel(new MetalLookAndFeel());
[/code]

It should doubtlessly run the same. However, when a JInternalFrame is displayed, the previously described error will occur.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
I expected the two segments of code as described above to behave in the same fashion.
ACTUAL -
The case in which new OceanTheme(){} is used creates an anonymous class. This extension of OceanTheme cannot retrieve "maximize.gif" from the system resources and the JInternalFrame is never rendered.

ERROR MESSAGES/STACK TRACES THAT OCCUR :
On System.err:

ExtensionOfOceanTheme/icons/ocean/maximize.gif not found
ExtensionOfOceanTheme/icons/ocean/maximize-pressed.gif not found

Caught as an exception:

Caused by: java.lang.IllegalArgumentException: null delegate icon argument
at javax.swing.plaf.IconUIResource.<init>(IconUIResource.java:49)
at javax.swing.plaf.metal.OceanTheme$IFIcon.<init>(OceanTheme.java:77)
at javax.swing.plaf.metal.OceanTheme$4.createValue(OceanTheme.java:204)
at javax.swing.UIDefaults.getFromHashtable(UIDefaults.java:183)
at javax.swing.UIDefaults.get(UIDefaults.java:128)
at javax.swing.MultiUIDefaults.get(MultiUIDefaults.java:44)
at javax.swing.UIDefaults.getIcon(UIDefaults.java:409)
at javax.swing.UIManager.getIcon(UIManager.java:613)
at javax.swing.plaf.basic.BasicInternalFrameTitlePane.installDefaults(BasicInternalFrameTitlePane.java:148)
at javax.swing.plaf.metal.MetalInternalFrameTitlePane.installDefaults(MetalInternalFrameTitlePane.java:94)
at javax.swing.plaf.basic.BasicInternalFrameTitlePane.installTitlePane(BasicInternalFrameTitlePane.java:97)
at javax.swing.plaf.basic.BasicInternalFrameTitlePane.<init>(BasicInternalFrameTitlePane.java:93)
at javax.swing.plaf.metal.MetalInternalFrameTitlePane.<init>(MetalInternalFrameTitlePane.java:81)
at javax.swing.plaf.metal.MetalInternalFrameUI.createNorthPane(MetalInternalFrameUI.java:120)
at javax.swing.plaf.basic.BasicInternalFrameUI.installComponents(BasicInternalFrameUI.java:171)
at javax.swing.plaf.basic.BasicInternalFrameUI.installUI(BasicInternalFrameUI.java:88)
at javax.swing.plaf.metal.MetalInternalFrameUI.installUI(MetalInternalFrameUI.java:54)
at javax.swing.JComponent.setUI(JComponent.java:650)
at javax.swing.JInternalFrame.setUI(JInternalFrame.java:326)
at javax.swing.JInternalFrame.updateUI(JInternalFrame.java:342)
at javax.swing.JInternalFrame.<init>(JInternalFrame.java:290)
at javax.swing.JInternalFrame.<init>(JInternalFrame.java:207)




REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
    public static void oceanThemeBugDemo()
            throws Exception
    {
        final JFrame f = new JFrame();
        JDesktopPane d = new JDesktopPane();
        JScrollPane s = new JScrollPane(d);
        s.setPreferredSize(new Dimension(400,300));
        f.setContentPane(s);
        JInternalFrame jif = new JInternalFrame();
        jif.getContentPane().add(new JLabel("test"));
        jif.pack();
        jif.setVisible(true);
        jif.setResizable(true);
        d.add(jif);
        f.pack();
        f.setLocationRelativeTo(null);
        f.setVisible(true);

        final JFrame ctl = new JFrame("Controls");
        Container c = ctl.getContentPane();
        c.setLayout(new BoxLayout(c, BoxLayout.Y_AXIS));
        JButton b = new JButton("Metal - Steel");
        c.add(b);
        b.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                MetalLookAndFeel.setCurrentTheme(new DefaultMetalTheme());
                try
                {
                    UIManager.setLookAndFeel(new MetalLookAndFeel());
                } catch (UnsupportedLookAndFeelException e1)
                {
                    e1.printStackTrace();
                }
                SwingUtilities.updateComponentTreeUI(f);
                SwingUtilities.updateComponentTreeUI(ctl);
            }
        });
        b = new JButton("Metal - Ocean");
        c.add(b);
        b.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                MetalLookAndFeel.setCurrentTheme(new OceanTheme());
                try
                {
                    UIManager.setLookAndFeel(new MetalLookAndFeel());
                } catch (UnsupportedLookAndFeelException e1)
                {
                    e1.printStackTrace();
                }
                SwingUtilities.updateComponentTreeUI(f);
                SwingUtilities.updateComponentTreeUI(ctl);
            }
        });
        b = new JButton("Metal - Ocean Extended");
        c.add(b);
        b.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                MetalLookAndFeel.setCurrentTheme(new OceanTheme()
                {
                });
                try
                {
                    UIManager.setLookAndFeel(new MetalLookAndFeel());
                } catch (UnsupportedLookAndFeelException e1)
                {
                    e1.printStackTrace();
                }
                SwingUtilities.updateComponentTreeUI(f);
                SwingUtilities.updateComponentTreeUI(ctl);
            }
        });
        ctl.pack();
        ctl.setLocationRelativeTo(f);
        ctl.setVisible(true);

        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        ctl.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Don't extend OceanTheme.
(Incident Review ID: 296712)
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###@###.### 10/12/04 17:23 GMT