diff --git a/dbcon/execplan/jsonarrayaggcolumn.cpp b/dbcon/execplan/jsonarrayaggcolumn.cpp
index d197b52ca..6256a039c 100644
--- a/dbcon/execplan/jsonarrayaggcolumn.cpp
+++ b/dbcon/execplan/jsonarrayaggcolumn.cpp
@@ -1,4 +1,4 @@
-/* Copyright (C) 2014 InfiniDB, Inc.
+/* Copyright (C) 2022 MariaDB Corporation
 
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License
diff --git a/dbcon/execplan/jsonarrayaggcolumn.h b/dbcon/execplan/jsonarrayaggcolumn.h
index c72b4c6c4..808f8446c 100644
--- a/dbcon/execplan/jsonarrayaggcolumn.h
+++ b/dbcon/execplan/jsonarrayaggcolumn.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2014 InfiniDB, Inc.
+/* Copyright (C) 2022 MariaDB Corporation
 
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License
diff --git a/dbcon/joblist/jsonarrayagg.cpp b/dbcon/joblist/jsonarrayagg.cpp
index 53938b1d8..30da5b73d 100644
--- a/dbcon/joblist/jsonarrayagg.cpp
+++ b/dbcon/joblist/jsonarrayagg.cpp
@@ -1,5 +1,4 @@
-/* Copyright (C) 2014 InfiniDB, Inc.
-   Copyright (C) 2019 MariaDB Corporation
+/* Copyright (C) 2022 MariaDB Corporation
 
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License
@@ -64,15 +63,6 @@ using namespace nlohmann;
 namespace joblist
 {
 
-// GroupConcatInfo class implementation
-JsonArrayInfo::JsonArrayInfo()
-{
-}
-
-JsonArrayInfo::~JsonArrayInfo()
-{
-}
-
 void JsonArrayInfo::prepJsonArray(JobInfo& jobInfo)
 {
   RetColsVector::iterator i = jobInfo.groupConcatCols.begin();
@@ -483,17 +473,16 @@ void JsonArrayAggregator::outputRow(std::ostringstream& oss, const rowgroup::Row
       case CalpontSystemCatalog::TEXT:
       {
         std::string maybeJson = row.getStringField(*i);
-        try
-        {
-          [[maybe_unused]] json j = json::parse(maybeJson);
-          oss << maybeJson.c_str();
-          break;
-        }
-        catch (const json::parse_error& e)
+        [[maybe_unused]] const auto j = json::parse(maybeJson, nullptr, false);
+        if (j.is_discarded())
         {
           oss << std::quoted(maybeJson.c_str());
-          break;
         }
+        else
+        {
+          oss << maybeJson.c_str();
+        }
+        break;
       }
 
       case CalpontSystemCatalog::DOUBLE:
@@ -716,7 +705,7 @@ const string JsonArrayAggregator::toString() const
 }
 
 
-// GroupConcatOrderBy class implementation
+
 JsonArrayAggOrderBy::JsonArrayAggOrderBy()
 {
   fRule.fIdbCompare = this;
@@ -941,7 +930,6 @@ const string JsonArrayAggOrderBy::toString() const
 }
 
 
-// GroupConcatNoOrder class implementation
 JsonArrayAggNoOrder::JsonArrayAggNoOrder()
  : fRowsPerRG(128), fErrorCode(ERR_AGGREGATION_TOO_BIG), fMemSize(0), fRm(NULL)
 {
diff --git a/dbcon/joblist/jsonarrayagg.h b/dbcon/joblist/jsonarrayagg.h
index 7c9235e23..7a4dc2edd 100644
--- a/dbcon/joblist/jsonarrayagg.h
+++ b/dbcon/joblist/jsonarrayagg.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2014 InfiniDB, Inc.
+/* Copyright (C) 2022 MariaDB Corporation
 
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License
@@ -37,37 +37,22 @@
 namespace joblist
 {
 // forward reference
-struct JobInfo;
 class JsonArrayAggregator;
 class ResourceManager;
 
 
-class JsonArrayInfo
+class JsonArrayInfo : public GroupConcatInfo
 {
  public:
-  JsonArrayInfo();
-  virtual ~JsonArrayInfo();
-
   void prepJsonArray(JobInfo&);
   void mapColumns(const rowgroup::RowGroup&);
 
-  std::set<uint32_t>& columns()
-  {
-    return fColumns;
-  }
-  std::vector<rowgroup::SP_GroupConcat>& groupConcat()
-  {
-    return fGroupConcat;
-  }
-
   const std::string toString() const;
 
  protected:
   uint32_t getColumnKey(const execplan::SRCP& srcp, JobInfo& jobInfo);
   boost::shared_array<int> makeMapping(const rowgroup::RowGroup&, const rowgroup::RowGroup&);
 
-  std::set<uint32_t> fColumns;
-  std::vector<rowgroup::SP_GroupConcat> fGroupConcat;
 };
 
 
@@ -81,23 +66,12 @@ class JsonArrayAggregatAgUM : public GroupConcatAgUM
   void initialize();
   void processRow(const rowgroup::Row&);
   EXPORT void merge(const rowgroup::Row&, int64_t);
-  /*boost::scoped_ptr<JsonArrayAggregator>& concator()
-  {
-    return fConcator;
-  }
-  */
+
   EXPORT void getResult(uint8_t*);
   EXPORT uint8_t* getResult();
 
  protected:
   void applyMapping(const boost::shared_array<int>&, const rowgroup::Row&);
-
-/*
-  boost::scoped_ptr<JsonArrayAggregator> fConcator;
-  boost::scoped_array<uint8_t> fData;
-  rowgroup::Row fRow;
-  bool fNoOrder;
-*/
 };
 
 // JSON_ARRAYAGG base
diff --git a/utils/rowgroup/rowaggregation.cpp b/utils/rowgroup/rowaggregation.cpp
index 2193e623a..c637ef168 100644
--- a/utils/rowgroup/rowaggregation.cpp
+++ b/utils/rowgroup/rowaggregation.cpp
@@ -4023,7 +4023,6 @@ void RowAggregationUM::setGroupConcatString()
         joblist::JsonArrayAggregatAgUM* gccAg = *((joblist::JsonArrayAggregatAgUM**)buff);
         gcString = gccAg->getResult();
         fRow.setStringField((char*)gcString, fFunctionCols[j]->fOutputColumnIndex);
-        // gccAg->getResult(buff);
       }
     }
   }