@com.fasterxml.jackson.annotation.JsonProperty("reason")
    public String getReason() {
        return this.reason;
    }
<p>
A reason code for the exception.
</p>

@return A reason code for the exception.
@see ValidationExceptionReason
aws-java-sdk-cleanrooms/src/main/java/com/amazonaws/services/cleanrooms/model/ValidationException.java