def currentStepInd = context.currentStepIndex
def previousStep = testRunner.testCase.getTestStepAt(currentStepInd - 1)
log.info previousStep.name

import com.eviware.soapui.impl.wsdl.teststeps.*

def list = []
list.add(jsessionid)
def headers = testStep.testRequest.requestHeaders
headers["Cookie"] = list
testStep.testRequest.requestHeaders = headers
log.info testStep.testRequest.requestHeaders["Cookie"]