Print list of variables from finished process

[StephenOTT]

def processInstanceId = processInstance.getProcessInstanceId()
def historicVariableInstanceQuery = historyService().createHistoricVariableInstanceQuery().processInstanceId(processInstanceId)

historicVariableInstanceQuery.list().each{
    println "${it.getName()} : ${it.getTypeName()}: ${it.getClass()}"
}