CLIENT - unhandled error in GUI - IndexOutOfBoundsException

Error type: CLIENT - unhandled error in GUI - IndexOutOfBoundsException

Client version: 1.4.56-V3 (build: 2025-02-09 16:02)
Java version: 1.8.0_201
Default charset: UTF-8

Invalid index

Stack trace:
javax.swing.DefaultRowSorter.convertRowIndexToModel(DefaultRowSorter.java:514)
sun.swing.FilePane$SortableListModel.getElementAt(FilePane.java:670)
javax.swing.JList.getSelectedValue(JList.java:2347)
javax.swing.plaf.basic.BasicFileChooserUI$Handler.valueChanged(BasicFileChooserUI.java:545)
javax.swing.JList.fireSelectionValueChanged(JList.java:1802)
javax.swing.JList$ListSelectionHandler.valueChanged(JList.java:1816)
javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:184)
javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:154)
javax.swing.DefaultListSelectionModel.setValueIsAdjusting(DefaultListSelectionModel.java:685)
javax.swing.JList.setValueIsAdjusting(JList.java:2146)
and other 78 lines

Start with the reported Java Swing stack trace, especially DefaultRowSorter.convertRowIndexToModel and the file chooser selection path. Determine which XMage GUI action triggers the Invalid index error and locate the project code involved; done means the action no longer produces an unhandled IndexOutOfBoundsException, with a regression check if the relevant test path exists.

Written by the indexing model from the issue text.