Repeat after me and V.M. "Vicky" Brasseur, well-known open-source business strategist: "Open source is not a business model." It's a software development model that can be used as part of many business models. That doesn't stop businesses based on open source, however, from blaming opensource for their revenue problems. The latest such is Lightbend, the corporate father of Akka, an important open-source Java middleware program. Lightbend is dropping Akka's open-source Apache license in favor of a non-open Business Source License (BSL) 1.1.

Unless you're a Java developer, chances are you haven't heard of Akka. It's open-source middleware for building Java Virtual Machine (JVM) highly concurrent, distributed, and fault-tolerant systems. It offers Scala and Java APIs to developers to easily build scalable and fault-tolerant software that can scale from PC to cloud applications. You have heard of the companies that use it, however. They include Apple, Disney, GM, HPE, Starbucks, and Tesla. 

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But, Jonas Bon