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/DialogMarkerFilter.java
}
    /**
     * Updates the UI state from the given filter.
     */
    protected void updateUIFromFilter() {
        filterEnabledButton.setSelection(filter.isEnabled());
        setSelectedTypes(filter.getSelectedTypes());
        int on = filter.getOnResource();
        anyResourceButton.setSelection(on == MarkerFilter.ON_ANY_RESOURCE);
        anyResourceInSameProjectButton
                .setSelection(on == MarkerFilter.ON_ANY_RESOURCE_OF_SAME_PROJECT);
        selectedResourceButton
                .setSelection(on == MarkerFilter.ON_SELECTED_RESOURCE_ONLY);
        selectedResourceAndChildrenButton
                .setSelection(on == MarkerFilter.ON_SELECTED_RESOURCE_AND_CHILDREN);
        workingSetGroup.setSelection(on == MarkerFilter.ON_WORKING_SET);
        workingSetGroup.setWorkingSet(filter.getWorkingSet());
        markerLimit.setText("" + filter.getMarkerLimit()); 
        filterOnMarkerLimit.setSelection(filter.getFilterOnMarkerLimit());
        updateEnabledState();
    }
    /**
     * Handles selection on a check box or combo box.
     */
    protected void widgetSelected(SelectionEvent e) {
        updateEnabledState();
        markDirty();
    }
    /**
     * @return <code>true</code> if the dirty flag has been set otherwise