Error converting value {null} to type 'System.Int64'. Path 'Benchmarks[4].Memory.BytesAllocatedPerOperation'

[PranavSenthilnathan]

This file has a null value for BytesAllocatedPerOperation:

    {
         "DisplayInfo":"Perf_Create.Create_JsonObject_Large: Job-RNGQIU(PowerPlanMode=00000000-0000-0000-0000-000000000000, Toolchain=CoreRun, IterationTime=250ms, MaxIterationCount=20, MinIterationCount=15, WarmupCount=1)",
         "Namespace":"System.Text.Json.Node.Tests",
         "Type":"Perf_Create",
         "Method":"Create_JsonObject_Large",
         "MethodTitle":"Create_JsonObject_Large",
         "Parameters":"",
         "FullName":"System.Text.Json.Node.Tests.Perf_Create.Create_JsonObject_Large",
         "HardwareIntrinsics":"AVX-512F+CD+BW+DQ+VL+VBMI,AES,BMI1,BMI2,FMA,LZCNT,PCLMUL,POPCNT VectorSize=256",
         "Statistics":null,
         "Memory":{
            "Gen0Collections":0,
            "Gen1Collections":0,
            "Gen2Collections":0,
            "TotalOperations":0,
            "BytesAllocatedPerOperation":null
         },
         "Measurements":[
            {
               "IterationMode":"Overhead",
               "IterationStage":"Jitting",
               "LaunchIndex":1,
               "IterationIndex":1,
               "Operations":1,
               "Nanoseconds":281100
            }
         ]
      }

When using results comparer, the following exception is thrown:

Unhandled exception: Newtonsoft.Json.JsonSerializationException: Error converting value {null} to type 'System.Int64'. Path 'Benchmarks[4].Memory.BytesAllocatedPerOperation', line 2481, position 45.
 ---> System.InvalidCastException: Null object cannot be converted to a value type.
   at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.EnsureType(JsonReader reader, Object value, CultureInfo culture, JsonContract contract, Type targetType)
   --- End of inner exception stack trace ---
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.EnsureType(JsonReader reader, Object value, CultureInfo culture, JsonContract contract, Type targetType)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.SetPropertyValue(JsonProperty property, JsonConverter propertyConverter, JsonContainerContract containerContract, JsonProperty containerProperty, JsonReader reader, Object target)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.SetPropertyValue(JsonProperty property, JsonConverter propertyConverter, JsonContainerContract containerContract, JsonProperty containerProperty, JsonReader reader, Object target)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateList(IList list, JsonReader reader, JsonArrayContract contract, JsonProperty containerProperty, String id)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, Object existingValue, String id)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.SetPropertyValue(JsonProperty property, JsonConverter propertyConverter, JsonContainerContract containerContract, JsonProperty containerProperty, JsonReader reader, Object target)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
   at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
   at Newtonsoft.Json.JsonSerializer.Deserialize(JsonReader reader, Type objectType)
   at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
   at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
   at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value)
   at ResultsComparer.Helper.ReadFromFile(String resultFilePath) in C:\git\performance\src\tools\ResultsComparer\Helper.cs:line 45
   at System.Linq.Enumerable.SelectArrayIterator`2.MoveNext()
   at ResultsComparer.MultipleInputsComparer.ReadResults(String basePath, String diffPath, IEnumerable`1 filters)+MoveNext() in C:\git\performance\src\tools\ResultsComparer\MultipleInputsComparer.cs:line 172
   at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
   at ResultsComparer.MultipleInputsComparer.GetResults(String basePath, String diffPath, MultipleInputsOptions args, Stats stats)+MoveNext() in C:\git\performance\src\tools\ResultsComparer\MultipleInputsComparer.cs:line 131
   at System.Linq.Enumerable.SelectManyIterator[TSource,TResult](IEnumerable`1 source, Func`3 selector)+MoveNext()
   at System.Linq.Lookup`2.Create(IEnumerable`1 source, Func`2 keySelector, IEqualityComparer`1 comparer)
   at System.Linq.GroupedEnumerable`2.GetEnumerator()
   at System.Linq.Enumerable.EnumerablePartition`1.ToArray()
   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at System.Linq.OrderedEnumerable`1.GetEnumerator()+MoveNext()
   at ResultsComparer.MultipleInputsComparer.Compare(MultipleInputsOptions args) in C:\git\performance\src\tools\ResultsComparer\MultipleInputsComparer.cs:line 33
   at ResultsComparer.Program.<>c.<Main>b__0_3(DirectoryInfo input, String basePattern, String diffPattern, String threshold, String noise, Nullable`1 top, String[] filters, Boolean printStats, Boolean ratioOnly) in C:\git\performance\src\tools\ResultsComparer\Program.cs:line 88
   at System.CommandLine.Handler.<>c__DisplayClass9_0`9.<SetHandler>b__0(InvocationContext context)
   at System.CommandLine.Invocation.AnonymousCommandHandler.<>c__DisplayClass2_0.<.ctor>g__Handle|0(InvocationContext context)
   at System.CommandLine.Invocation.AnonymousCommandHandler.InvokeAsync(InvocationContext context)
   at System.CommandLine.Invocation.InvocationPipeline.<>c__DisplayClass4_0.<<BuildInvocationChain>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass18_0.<<UseParseErrorReporting>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass13_0.<<UseHelp>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass22_0.<<UseVersionOption>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass20_0.<<UseTypoCorrections>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c.<<UseSuggestDirective>b__19_0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass17_0.<<UseParseDirective>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c.<<RegisterWithDotnetSuggest>b__6_0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass9_0.<<UseExceptionHandler>b__0>d.MoveNext()

I think the fix is to just update the long to long? here.