Multiple Submit Buttons problem in Struts2

[aum strut]

Hi All,

Trying to work with multiple submit buttons within a single form in struts2
application but not able to work. here is the jsp code i am using

<tr>
                                                <td
class="button"><input type="submit" value="Import"

name="destinationImport" class="button"></td>
                                                <td
class="button"><input type="submit" value="Export"

name="destinationExport" class="button"></td>
                                            </tr>

here is the java part

private boolean destinationImport;
    private boolean destinationExport;
and there respective setter and getter

but i am sure is that Struts2 type convertor is having problem converting
the String value to boolean do any one have idea how to achieve this

i am using struts-2.2.1 version.

Thanks in advance