@com.fasterxml.jackson.annotation.JsonProperty("reason")
    public void setReason(String reason) {
        this.reason = reason;
    }
<p>
The reason the request failed validation.
</p>

@param reason
       The reason the request failed validation.
@see ValidationExceptionReason
aws-java-sdk-auditmanager/src/main/java/com/amazonaws/services/auditmanager/model/ValidationException.java