AddStreamEntries error :Wrapped java.lang.NullPointerException

Hi All,

I am facing "Wrapped java.lang.NullPointerException " error while trying to execute AddStreamEntries to add records to stream.

 TW Version 8.3

Please find below the code

var column = "FlowRate";
var params = {
t: result1 /* INFOTABLE */,
columns: column /* STRING */,
aggregates: "AVERAGE" /* STRING */,
groupByColumns: "date" /* STRING */
};
// result: INFOTABLE
//var resultAggregate = Resources["InfoTableFunctions"].Aggregate(params);
var result = Resources["InfoTableFunctions"].Aggregate(params);

var resultLength = result.rows.length;

//logger.warn(resultLength);
var Values = Things["FlowRateAverage"].CreateValues();
for (var m=0; m < resultLength; m++) {
var resultRow = result.rows[m];
var newValues = new Object();
newValues.date = resultRow.date;
newValues.FlowRate = resultRow.AVERAGE_FlowRate;
Values.AddRow(newValues);
}

result = Values;

var paramsForAddStreamEntryService = {
sourceType: undefined /* STRING */,
values: Values /* INFOTABLE*/,
location: undefined /* LOCATION */,
source: undefined /* STRING */,
timestamp: new Date() /* DATETIME */,
tags: undefined /* TAGS */
};

Things["FlowRateAverage"].AddStreamEntries(paramsForAddStreamEntryService);