--- a/com/mysql/jdbc/ResultSetImpl.java
+++ b/com/mysql/jdbc/ResultSetImpl.java
@@ -929,10 +929,17 @@
 
         this.wasNullFlag = false;
 
-        String encoding = this.fields[columnIndexMinusOne].getCollationIndex() == CharsetMapping.MYSQL_COLLATION_INDEX_binary ? this.connection.getEncoding()
-                : this.fields[columnIndexMinusOne].getEncoding();
+        String encoding = getStringEncoding(this.fields[columnIndexMinusOne]);
 
         return this.thisRow.getString(columnIndex - 1, encoding, this.connection);
+    }
+
+    private String getStringEncoding(Field field) throws SQLException {
+        if (field.getMysqlType() == MysqlDefs.FIELD_TYPE_JSON) {
+            return field.getEncoding();
+        }
+
+        return field.getCollationIndex() == CharsetMapping.MYSQL_COLLATION_INDEX_binary ? this.connection.getEncoding() : field.getEncoding();
     }
 
     protected Date fastDateCreate(Calendar cal, int year, int month, int day) throws SQLException {
@@ -5239,8 +5246,7 @@
                 return String.valueOf(getNumericRepresentationOfSQLBitType(columnIndex));
             }
 
-            String encoding = metadata.getCollationIndex() == CharsetMapping.MYSQL_COLLATION_INDEX_binary ? this.connection.getEncoding()
-                    : metadata.getEncoding();
+            String encoding = getStringEncoding(metadata);
 
             stringVal = this.thisRow.getString(internalColumnIndex, encoding, this.connection);