public String getGroupName() {
        return this.groupName;
    }
<p>
The name of the security group.
</p>
<p>
Constraints: Up to 255 characters in length. Cannot start with <code>sg-</code>.
</p>
<p>
Valid characters: a-z, A-Z, 0-9, spaces, and ._-:/()#,@[]+=&amp;;{}!$*
</p>

@return The name of the security group.</p>
        <p>
        Constraints: Up to 255 characters in length. Cannot start with <code>sg-</code>.
        </p>
        <p>
        Valid characters: a-z, A-Z, 0-9, spaces, and ._-:/()#,@[]+=&amp;;{}!$
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/CreateSecurityGroupRequest.java