I am encountering an issue with Jackson deserialization when trying to convert a JSON response into an enum class generated by Swagger. The error message I receive is:

com.fasterxml.jackson.databind.exc.InvalidFormatException: Cannot deserialize value of type `io.swagger.client.model.SLAKPIDefinition` from String "avg-transaction-resp-time": not one of the values accepted for Enum class: [PERC_TRANSACTION_RESP_TIME, AVG_THROUGHPUT_PER_SEC, AVG_PAGE_RESP_TIME, THROUGHPUT, ERRORS_COUNT, AVG_TRANSACTION_RESP_TIME, AVG_REQUEST_RESP_TIME, AVG_REQUEST_PER_SEC, ERROR_RATE, ERRORS_PER_SEC, AVG_RESP_TIME, COUNT]
 at [Source: (.springframework.util.StreamUtils$NonClosingInputStream); line: 1, column: 9] (through reference chain: java.util.ArrayList[0]->io.swagger.client.model.SLAPerTestResultDefinition["kpi"])
    at com.fasterxml.jackson.databind.exc.InvalidFormatException.from(InvalidFormatException.java:67) ~[jackson-databind-2.15.3.jar:2.15.3]

Here is the generated enum class:

package io.swagger.client.model;

import java.util.Objects;
import java.util.Arrays;
import io.swagger.v3.oas.annotations.media.Schema;
import com.google.gson.annotations.SerializedName;
import java.io.IOException;
import com.google.gson.TypeAdapter;
import com.google.gson.annotations.JsonAdapter;
import com.google.gson.stream.JsonReader;
import com.google.gson.stream.JsonWriter;

/**
 * KPI
 */
@JsonAdapter(SLAKPIDefinition.Adapter.class)
public enum SLAKPIDefinition {
  @SerializedName("avg-request-resp-time")
  AVG_REQUEST_RESP_TIME("avg-request-resp-time"),
  @SerializedName("avg-page-resp-time")
  AVG_PAGE_RESP_TIME("avg-page-resp-time"),
  @SerializedName("avg-transaction-resp-time")
  AVG_TRANSACTION_RESP_TIME("avg-transaction-resp-time"),
  @SerializedName("perc-transaction-resp-time")
  PERC_TRANSACTION_RESP_TIME("perc-transaction-resp-time"),
  @SerializedName("avg-request-per-sec")
  AVG_REQUEST_PER_SEC("avg-request-per-sec"),
  @SerializedName("avg-throughput-per-sec")
  AVG_THROUGHPUT_PER_SEC("avg-throughput-per-sec"),
  @SerializedName("errors-count")
  ERRORS_COUNT("errors-count"),
  @SerializedName("count")
  COUNT("count"),
  @SerializedName("throughput")
  THROUGHPUT("throughput"),
  @SerializedName("avg-resp-time")
  AVG_RESP_TIME("avg-resp-time"),
  @SerializedName("errors-per-sec")
  ERRORS_PER_SEC("errors-per-sec"),
  @SerializedName("error-rate")
  ERROR_RATE("error-rate");

  private String value;

  SLAKPIDefinition(String value) {
    this.value = value;
  }

  public String getValue() {
    return value;
  }

  @Override
  public String toString() {
    return String.valueOf(value);
  }

  public static SLAKPIDefinition fromValue(String input) {
    for (SLAKPIDefinition b : SLAKPIDefinition.values()) {
      if (b.value.equals(input)) {
        return b;
      }
    }
    return null;
  }

  public static class Adapter extends TypeAdapter<SLAKPIDefinition> {
    @Override
    public void write(final JsonWriter jsonWriter, final SLAKPIDefinition enumeration) throws IOException {
      jsonWriter.value(String.valueOf(enumeration.getValue()));
    }

    @Override
    public SLAKPIDefinition read(final JsonReader jsonReader) throws IOException {
      Object value = jsonReader.nextString();
      return SLAKPIDefinition.fromValue((String)(value));
    }
  }
}

Here is the JSON I am trying to deserialize:

{
    "kpi": "avg-transaction-resp-time",
    "status": "FAILED",
    "value": 0.18579546,
    "failedThreshold": {
        "operator": ">=",
        "values": [
            0.042
        ]
    },
    "element": {
        "elementId": "97daea5f-2642-4ee7-b049-4114a1106b22",
        "name": "08_01 (initial) MS öffnen",
        "category": "TRANSACTION",
        "userpath": "00 SLA- WORK",
        "parent": "08 Medienspiegel"
    }
}

And here is the method where I am trying to convert the response:

public List<SLAPerTestResultDefinition> getSlaPerTestFromApi(String workspace, String resultId, HttpSession session) {
    return this.apiConfigurations.restTemplate().exchange(
            this.apiConfigurations.hostForApi() + workspace + "/test-results/" + resultId + "/slas/per-test",
            HttpMethod.GET,
            this.apiConfigurations.getHttpEntityWithHeader(session),
            new ParameterizedTypeReference<List<SLAPerTestResultDefinition>>() {
            }
    ).getBody();
}

My question is, why does deserialization fail even though the string is clearly present? It seems to be related to @SerializedName. When I use @JsonProperty, it works.

Any insights or solutions would be greatly appreciated!