java.lang.NumberFormatException: For input string: "-n" for seek

[akuz0]

How to use "seek": "order-topic,0,-n", ?

https://zerocode-tdd.tddfy.com/kafka/Kafka-consume-the-latest-message-or-n-latest-messages

I try use it, but have error

java.lang.RuntimeException: ZeroCode Step execution failed. Details:java.lang.RuntimeException: java.lang.NumberFormatException: For input string: "-n"

[authorjapps]

Can you have a look this test scenario here, Line:59, Line:42 doing exactly the same ?
These are part of the CI build and always PASS here (CI run logs).

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CI Console log can be found here which looks fine 🟢 .
Line: 17805 (java 17 Build)

// example snippet below

2026-05-26 21:33:30,008 [main] WARN  o.j.z.c.r.ZeroCodeMultiStepsScenarioRunnerImpl - 
--------- TEST-STEP-CORRELATION-ID: 17101a62-8212-4098-a4db-f7ddd648b8b1 ---------
*requestTimeStamp:2026-05-26T21:33:23.983841640
step:consume_last2
url:kafka-topic:demo-c3
method:CONSUME
request:
{
  "consumerLocalConfigs" : {
    "seek" : "demo-c3,0,-2",
    "commitSync" : true,
    "recordType" : "RAW",
    "showRecordsConsumed" : true,
    "maxNoOfRetryPollsOrTimeouts" : 3
  }
} 
--------- TEST-STEP-CORRELATION-ID: 17101a62-8212-4098-a4db-f7ddd648b8b1 ---------
Response:
{
  "records" : [ {
    "topic" : "demo-c3",
    "partition" : 0,
    "offset" : 0,
    "timestamp" : 1779831197437,
    "timestampType" : "CREATE_TIME",
    "serializedKeySize" : 19,
    "serializedValueSize" : 12,
    "key" : "7060501356504625880",
    "value" : "Hello World1",
    "leaderEpoch" : 0
  }, {
    "topic" : "demo-c3",
    "partition" : 0,
    "offset" : 1,
    "timestamp" : 1779831197446,
    "timestampType" : "CREATE_TIME",
    "serializedKeySize" : 19,
    "serializedValueSize" : 12,
    "key" : "5423550580053029553",
    "value" : "Hello World2",
    "leaderEpoch" : 0
  } ],
  "size" : 2
}
*responseTimeStamp:2026-05-26T21:33:30.007673100 
*Response delay:6023.0 milli-secs 
---------> Expected Response: <----------
{
  "size" : 2
} 
 
-done-