Bug 69424 TVT3.0: Multiple Mnemonics in Tasks -> Filters
From the main Workbench view, click the Task menu (drop down arrow) and select Filters. There are duplicated mnemonics for (D). See the attached screenshot.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/DialogTaskFilter.java
int priority = 0;
        if (priorityGroup.isHighSelected()) {
            priority = priority | TaskFilter.PRIORITY_HIGH;
        }
        if (priorityGroup.isNormalSelected()) {
            priority = priority | TaskFilter.PRIORITY_NORMAL;
        }
        if (priorityGroup.isLowSelected()) {
            priority = priority | TaskFilter.PRIORITY_LOW;
        }
        filter.setPriority(priority);
        filter.setSelectByDone(statusGroup.isEnabled());
        filter.setDone(statusGroup.getDone());
        super.updateFilterFromUI();
    }
    /* (non-Javadoc)
     * @see org.eclipse.ui.views.markerview.FiltersDialog#updateUIFromFilter(org.eclipse.ui.views.markerview.MarkerFilter)
     */
    protected void updateUIFromFilter() {
        TaskFilter filter = (TaskFilter) getFilter();
        descriptionGroup.setContains(filter.getContains());
        descriptionGroup.setDescription(filter.getDescription());
        priorityGroup.setEnabled(filter.getSelectByPriority());
        int priority = filter.getPriority();
        priorityGroup
                .setHighSelected((priority & TaskFilter.PRIORITY_HIGH) > 0);
        priorityGroup
                .setNormalSelected((priority & TaskFilter.PRIORITY_NORMAL) > 0);
        priorityGroup.setLowSelected((priority & TaskFilter.PRIORITY_LOW) > 0);
        statusGroup.setEnabled(filter.getSelectByDone());