version 1.7.9 : BUG when adding items in sorted ComboBoxModel > ArrayIndexOutOfBoundsException

[homebeaver]

java.lang.ArrayIndexOutOfBoundsException: Index 7 out of bounds for length 7
	at java.desktop/javax.swing.DefaultRowSorter.setModelToViewFromViewToModel(DefaultRowSorter.java:745)
	at java.desktop/javax.swing.DefaultRowSorter.rowsInserted0(DefaultRowSorter.java:1078)
	at java.desktop/javax.swing.DefaultRowSorter.rowsInserted(DefaultRowSorter.java:879)
	at org.jdesktop.swingx.sort.DefaultSortController.rowsInserted(DefaultSortController.java:390)
	at org.jdesktop.swingx.plaf.basic.core.ListSortUI.notifySorter(ListSortUI.java:415)
	at org.jdesktop.swingx.plaf.basic.core.ListSortUI.modelChanged(ListSortUI.java:108)
	at org.jdesktop.swingx.plaf.basic.core.BasicXListUI.processedBySortUI(BasicXListUI.java:292)
	at org.jdesktop.swingx.plaf.basic.core.BasicXListUI$3.intervalAdded(BasicXListUI.java:588)
	at java.desktop/javax.swing.AbstractListModel.fireIntervalAdded(AbstractListModel.java:157)
	at java.desktop/javax.swing.DefaultComboBoxModel.addElement(DefaultComboBoxModel.java:130)
	at java.desktop/javax.swing.JComboBox.addItem(JComboBox.java:746)
	at org.jdesktop.swingx.demos.combobox.XComboBoxDemo.createRightPane(XComboBoxDemo.java:236)
	at org.jdesktop.swingx.demos.combobox.XComboBoxDemo.<init>(XComboBoxDemo.java:318)
	at org.jdesktop.swingx.demos.combobox.XComboBoxDemo.lambda$0(XComboBoxDemo.java:85)
	at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:771)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:722)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:716)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:741)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

[homebeaver]

Die exception passiert im ListDataListener.

    protected void fireIntervalAdded(Object source, int index0, int index1)
    {
        Object[] listeners = listenerList.getListenerList();
        ListDataEvent e = null;

        for (int i = listeners.length - 2; i >= 0; i -= 2) {
            if (listeners[i] == ListDataListener.class) {
                if (e == null) {
                    e = new ListDataEvent(source, ListDataEvent.INTERVAL_ADDED, index0, index1);
                }
/*157: */           ((ListDataListener)listeners[i+1]).intervalAdded(e);
            }
        }
    }

Dabei fällt auf, dass im ComboBoxModel mehrere listener registriert sind, die für addItem zuständig sind.
Der erste erledigt das add, beim zweiten kommt es zur exception. Daher kann man diese abfangen wie das work around zeigt.

Die Lösung ist es aber nicht. TODO

Die registrierung der Listener erfolgt an zwei Stellen:

• org.jdesktop.swingx.plaf.basic.core.BasicXListUI installListeners
• org.jdesktop.swingx.plaf.basic.BasicXComboBoxUI installListeners