public void setUnsuccessful(java.util.Collection<UnsuccessfulItem> unsuccessful) {
        if (unsuccessful == null) {
            this.unsuccessful = null;
            return;
        }

        this.unsuccessful = new com.amazonaws.internal.SdkInternalList<UnsuccessfulItem>(unsuccessful);
    }
<p>
Information about the interface endpoints that were not accepted, if applicable.
</p>

@param unsuccessful
       Information about the interface endpoints that were not accepted, if applicable.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/AcceptVpcEndpointConnectionsResult.java