in src/main/java/software/amazon/msk/auth/iam/internals/AuthenticationResponse.java [44:51]
public AuthenticationResponse(@JsonProperty(VERSION_FIELD_NAME) String version,
@JsonProperty(REQUEST_ID_FIELD_NAME) String requestId) {
if (!VERSION_1.equals(version)) {
throw new IllegalArgumentException("Invalid version " + version);
}
this.version = version;
this.requestId = requestId;
}