public void setUnknownIpPermissions(java.util.Collection<IpPermission> unknownIpPermissions) {
        if (unknownIpPermissions == null) {
            this.unknownIpPermissions = null;
            return;
        }

        this.unknownIpPermissions = new com.amazonaws.internal.SdkInternalList<IpPermission>(unknownIpPermissions);
    }
<p>
The outbound rules that were unknown to the service. In some cases, <code>unknownIpPermissionSet</code> might be
in a different format from the request parameter.
</p>

@param unknownIpPermissions
       The outbound rules that were unknown to the service. In some cases, <code>unknownIpPermissionSet</code>
       might be in a different format from the request parameter.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/RevokeSecurityGroupEgressResult.java