some times Jmeter behaves different like session expired.

Hi All, I'm doing Load testing but some times I got Your previous session has expired. Please login again. My Client path = /SlidePrj/servlet/com.heartbeat.slideengine.user.controller.Controller? Response= function checkForm(f) { if (failEmpty(f.username, 'User

some times Jmeter behaves different like session expired.

Hi All, I'm doing Load testing but some times I got Your previous session has expired. Please login again. My Client path = /SlidePrj/servlet/com.heartbeat.slideengine.user.controller.Controller? Response= function checkForm(f) { if (failEmpty(f.username, 'User