Cannot convert value [true] of type class java.lang.String to Object Array for field

Hi,

It depends on how you are setting the UpdateRecord processor. If you can provide screenshot it will help us figure out the issue. It seems you are trying to overwrite the field SPRINT_LIST and its complaining that you cannot convert Array to String because its already an array in the first record. May I suggest a different approach because the UpdateRecord you have to worry about setting the Record Writer\Reader and also you have to define the avro schema accordingly if you are planning to add new fields. Instead you can just use the Json Jolt Transformation processor with the following spec:

[
  {
    "operation": "shift",
    "spec": {
      "*": {
        "SPRINT_LIST": {
          "0": {
            "#true": "[&3].is_sprint_array"
          },
          "@": "[&2].SPRINT_LIST"
        },
        "*": "[&1].&"
      }
    }
  },
  {
    "operation": "default",
    "spec": {
      "*": {
        "is_sprint_array": "false"
      }
    }
  }
]

No need to set record reader\writer as long you know the input is always its valid json and has same schema. This will give you the following output:

[ {
  "INTEGRATION_ID" : "1",
  "ISSUE_STATUS_CAT" : "Done",
  "SPRINT_LIST" : [ "24-w1-2", "24-w1-3", "24-w1-4" ],
  "is_sprint_array" : "true"
}, {
  "INTEGRATION_ID" : "2",
  "ISSUE_STATUS_CAT" : "Done",
  "SPRINT_LIST" : "24-w1-2",
  "is_sprint_array" : "false"
} ]

If that helps please accept solution.

Thanks