public String getInstanceId() {
        return this.instanceId;
    }
<p>
The ID of the instance. The instance must have the following tag: UserForSMSApplicationValidation=true.
</p>

@return The ID of the instance. The instance must have the following tag: UserForSMSApplicationValidation=true.
aws-java-sdk-servermigration/src/main/java/com/amazonaws/services/servermigration/model/SSMValidationParameters.java