public void setGroupId(String groupId) {
        this.groupId = groupId;
    }
<p>
The ID of the security group.
</p>

@param groupId
       The ID of the security group.
aws-java-sdk-securityhub/src/main/java/com/amazonaws/services/securityhub/model/AwsEc2SecurityGroupUserIdGroupPair.java