how to pass multi-value parameter in jsp

Relinjose

<p>Hi..i have created a report with allow multi-value parameter ..its ran well and then i had created jsp ..with tag library...<span style="font-size:14px;">while i </span>ran<span style="font-size:14px;"> a report...it show only a list box not showing a multi-value list-box</span><span style="font-size:14px;"> ...how to get a multi value lisbox in jsp page???</span></p>

Relinjose

<p>Kindly reply for this post ....look at the attached Screenshot it showing some error...but if i select one value it show a value in chart</p><p>but i want to select multiple selection in last level.....</p>