ArrayIndexOutOfBound in JTabbedPane

Hi all,
I am getting following bug when adding tab to JTabbedPane.
Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 0
at javax.swing.plaf.basic.BasicTabbedPaneUI$ScrollableTabSupport.updateView(BasicTabbedPaneUI.java:3340)
at javax.swing.plaf.basic.BasicTabbedPaneUI$ScrollableTabSupport.stateChanged(BasicTabbedPaneUI.java:3323)
     at javax.swing.JViewport.fireStateChanged(JViewport.java:1384)
     at javax.swing.JViewport$ViewListener.componentResized(JViewport.java:1302)
     at java.awt.Component.processComponentEvent(Component.java:5867)
     at java.awt.Component.processEvent(Component.java:5821)
     at java.awt.Container.processEvent(Container.java:2058)
     at java.awt.Component.dispatchEventImpl(Component.java:4413)
     at java.awt.Container.dispatchEventImpl(Container.java:2116)
     at java.awt.Component.dispatchEvent(Component.java:4243)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
     at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
     at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)
Bug is not occuring every time. and I cannot reproduce it.
If anybody knows solution , please help me.
Thanks in advance

Bug is not occuring every time. and I cannot reproduce it.That shows a concurrency issue. Make sure to launch your GUI on the EDT using SwingUtilities#invokeLater.
The Java™ Tutorials: [Concurrency in Swing|http://java.sun.com/docs/books/tutorial/uiswing/concurrency/index.html]
db

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... Then we can replicate this behavior by following these steps:
1) Run the program in Java 6; and then
2) Click on a child component in any of the tabs; and then
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Hi Kleopatra,
Thanks for the reply.
Please allow me to clarify first: Actually the problem is not that the child components (inside tabs) get focused before the selected tab. The problem is: the component outside of the tabs gets focused before the selected tab. For example, the JButton in the SSCCE posted above gets focused when users switch between tabs, despite the fact that the JButton is not a child component of the JTabbedPane.
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Now, while the focus is still within the tab contents, try to switch to any other tab (e.g. by clicking on the tab headers, or by using the mnemonic keys 'ALT + 1' to 'ALT + 4')...
... then you'll notice the following usability issue:
1) JRE 1.6 causes the focus to transfer to the JButton (which is outside of the tabs entirely) first; then
2) In response to the JButton gaining focus, the 'auto-scrolling' feature scrolls down to the bottom of the form, to show the JButton. At this point, the tab headers are hidden from view since there are many child components; then
3) JRE 1.6 transfers the focus to the tab contents; then
4) The 'auto-scrolling' feature scrolls up to the selected tab's contents, but the tab header itself is still hidden from view (as a side effect of the behavior above); then
5) Users are forced to manually scroll up to see the tab headers whenever they are just switching between tabs.
In short, the tab headers will be hidden when users switch tabs, due to the Java 6 behavior posted above.
That is why it is important for me to prevent the behavior in my first post above (so that it won't cause usability issues when we apply the 'auto-scrolling' feature to our forms).
Best Regards,
James

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               QuoteRequestDetailsGUI_IF quoteRequestDetailsGUI =
                    new QuoteRequestDetailsGUI(quoteRequestStatusPassed);
               // Create a new tab that will host all details of the quote request
               tabbedPane.addTab("Quote Request Details",
                         quoteRequestDetailsGUI.createQuoteRequestDetailsPanel());
               return tabbedPane;
     public class QuoteRequestDetailsGUI extends QuoteRequestGUI implements QuoteRequestDetailsGUI_IF {
          private ProductDetailsGUI_IF productDetailsGUI = new ProductDetailsGUI();
           * Panel that will act as a container for both quote request and buyer
           * details
          public JPanel createQuoteRequestDetailsPanel() {
               // Panel that will contain quoteRequest, buyer and buttons
               JPanel panel_quoteRequestDetails = new JPanel();
               // Create an intermediate panel so that components can be layed out properly
               JPanel panel_quoteRequestIntermediatePanel = new JPanel();
               // Set layout manager for panel
               panel_quoteRequestIntermediatePanel.setLayout(
                    new BoxLayout(panel_quoteRequestIntermediatePanel,BoxLayout.PAGE_AXIS));
               // Add the buttons
               panel_quoteRequestIntermediatePanel.add(createQuoteRequestDetailsButtons());
               // Add the intermediate panel to the main panel
               panel_quoteRequestDetails.add(panel_quoteRequestIntermediatePanel);
               return panel_quoteRequestDetails;
           * Panel that will hold all the buttons for the quote request details tabbed panel
          public JPanel createQuoteRequestDetailsButtons() {
               // Panel to act as a container for the buttons
               JPanel panel_quoteRequestDetailsButtons = new JPanel();
               // Create, register action listeners and add buttons to the panel
               JButton button_saveTabbedPane = new JButton("Save");
               button_saveTabbedPane.addActionListener(new ActionListener() {
                    public void actionPerformed (ActionEvent actionEvent) {
                           saveTabbedPaneListener();
               panel_quoteRequestDetailsButtons.add(button_saveTabbedPane);
               return panel_quoteRequestDetailsButtons;
           * Display the save (product details) tabbed pane
           * @todo - Implement the save tabbed pane selected method
          public void saveTabbedPaneListener() {
                    log.info("tab count before added : " + tabbedPane.getTabCount());
                    // The product details of a particular quote request
                    tabbedPane.addTab("Product Details",
                              productDetailsGUI.createProductDetailsPanel());
                    log.info("tab count after added : " + tabbedPane.getTabCount());
                    tabbedPane.invalidate();
                    tabbedPane.validate();
                    internalFrame_newQuoteRequest.revalidate();
     public class ProductDetailsGUI implements ProductDetailsGUI_IF {
           * Panel that will act as a container for both the product details (incl
           * table) and the buttons
          public JPanel createProductDetailsPanel() {
               // Main product details panel
               JPanel panel_productDetails = new JPanel();
               // Add the scroll pane to the panel
               panel_productDetails.add(new JButton("ok"));
               // Add the buttons to the panel
               // Add the scroll pane to the panel
               panel_productDetails.add(new JButton("cancel"));
               return panel_productDetails;
     }

MS,
Try copying one existing TAB and use that, this happens only when there is improper xml content. You can open the xml in the browser/visual studio for better clarity and then try making the changes. Doing IIS Reset will be required but in the meanwhile you
can put the original RCDC which will work till the time you make any change in new TAB.
Regards,
Manuj Khurana

Creating a dropdown for the tabs that use JTabbedPane

Hi all,
I have an application that uses a JTabbedPane to create tabs. Currently it uses the default to scroll if there are more tabs than what can be fit on the screen. I would also like to provide a dropdown next to the scroll arrows so that the user can see all the tabs on a dropdown list and select one w/o having to scroll left and right. I've seen this done on the NetBeans IDE 4.1 and 5.0. Is this something I can leverage from the Swing API (using JDK 5), grab from some open-source library, or must code myself? Let me know how I can do this. Thanks in advance!
-los

Thanks for the reply!
I understand what you are describing but am a bit puzzled on a couple of things (maybe because I just got into Swing).
My biggest question is on how to place the combo box in the tabbed pane next to the scrolling arrows. I'm looking at the JTabbedPane Javadoc and I do not see a place where one can add other components such as this combo box (other than the tabs themselves).
Another question is that the combo box will have a width the size of the longest text contained in the box. How do I remove this length and just show the dropdown arrow. When the user clicks this arrow, the combo box appears with the list of items, i.e. I want to mimic what the NetBeans IDE does.
Thanks in advanced!
-los

Sender ADapter Monitor- ArrayIndexOutOfBOunds Exception

Hi
As me subject line reads, I am getting an "ArrayIndeXOutofBOunds 9" exception at the sender adapter monitor logs in the RWB.
I have an a<i>dapter monitor module</i> that picks up the file from the source and pushes the file to a target directory based on some condition. I am able to see the file being pushed to the target directory but not able to view the "pipeline steps" in the message monitor.
Do you think a restart of the server might fix the issue/ do you think there is a problem in my code. I have used just one array and i have checked that array if it is being accessed out of its bounds?
Thanks
krishna

Hi,
>>>>>ArrayIndeXOutofBOunds 9"
looks like an error in code
Regards,
michal
<a href="/people/michal.krawczyk2/blog/2005/06/28/xipi-faq-frequently-asked-questions"><b>XI / PI FAQ - Frequently Asked Questions</b></a>

ArrayIndexOutOfBound in JTabbedPane

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