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Introducing the Constrained Application Protocol (CoAP) for Java Eric J. Bruno Use CoAP for lightweight messaging applications, such as for working with simple IoT sensors or other edge devices.

Curly Braces Column: Null is Not Nothing Eric J. Bruno What’s the meaning of null, and what’s the difference (if any) between null and void? If this essay were an episode of Seinfeld, it would be called “The Null Column,” because it’s a column about nothing—literally.

Programming lightweight IoT messaging with MQTT in Java Eric J. Bruno MQTT is an open message protocol perfect for communicating telemetry-style data from distributed devices and sensors over unreliable or constrained networks.

Curly Braces Column: Network Data Transmission and Compression Eric J. Bruno When data-intensive applications are I/O bound, perhaps you should compress the bytes.