Bug 69423 [Tasks] TVT3.0: Multiple Mnemonics in Tasks -> Sorting screen
From the main Workbench view, click the Task menu (drop down arrow) and select Sorting. There are duplicated mnemonics for (D) and (A). See the attached screenshot.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/TableSortDialog.java
protected void okPressed() {
        if (isDirty()) {
            for (int i = priorityCombos.length - 1; i >= 0; i--) {
                String column = priorityCombos[i].getItem(priorityCombos[i]
                        .getSelectionIndex());
                int index = -1;
                for (int j = 0; j < propertyText.length && index == -1; j++) {
                    if (propertyText[j].equals(column))
                        index = j;
                }
                if (index == -1) {
                    sorter.resetState();
                    return;
                }
                sorter.setTopPriority(properties[index]);
                int direction = TableSorter.ASCENDING;
                if (descendingButtons[i].getSelection())
                    direction = TableSorter.DESCENDING;
                sorter.setTopPriorityDirection(direction);
            }
        }
        super.okPressed();
    }
    /**
     * @return boolean
     */
    public boolean isDirty() {
        return dirty;
    }
    /**