[1.3.5-prepare][cherry-pick]#4459 update workflow instance NPE (#4604)

pr #4459
issue #4449

dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/ProcessInstanceService.java

@@ -382,7 +382,7 @@ public class ProcessInstanceService extends BaseDAGService {
 
             originDefParams = JSONUtils.toJson(processData.getGlobalParams());
             List<Property> globalParamList = processData.getGlobalParams();
-            Map<String, String> globalParamMap = globalParamList.stream().collect(Collectors.toMap(Property::getProp, Property::getValue));
+            Map<String, String> globalParamMap = Optional.ofNullable(globalParamList).orElse(Collections.emptyList()).stream().collect(Collectors.toMap(Property::getProp, Property::getValue));
             globalParams = ParameterUtils.curingGlobalParams(globalParamMap, globalParamList,
                     processInstance.getCmdTypeIfComplement(), schedule);
             timeout = processData.getTimeout();