variables1.put("myVar", "test123");
ProcessInstance processInstance1 = runtimeService.startProcessInstanceByKey("oneTaskProcess", variables1);
HistoricVariableInstanceQuery query = historyService.createHistoricVariableInstanceQuery();
query.activityInstanceIdIn(processInstance1.getId());
assertEquals(2, query.list().size());
assertEquals(2, query.count());
Map<String, Object> variables2 = new HashMap<String, Object>();