Although there have been some recent questions about one of our patent applications relating to the AMQP specification, they appear to originate in an attempt to spread FUD. There’s no reasonable, objective basis for controversy. In fact, the AMQP Agreement, which we helped to draft, expressly requires that members of the working group, including Red Hat, provide an irrevocable patent license to those that use or implement AMQP. In other words, even if we were to abandon our deeply held principles (which we will not), the AMQP Agreement prevents us from suing anyone for infringing a patent based on an implementation of AMQP specification. Moreover, our Patent Promise applies to every patent we obtain. Red Hat’s patent portfolio will never be used against AMQP, and Red Hat will support any modifications to the specification needed in future to verify that fact.The factual inaccuracy here comes from the fact that the AMQP Agreement covers an irrevocable patent license for any patents necessary to implement the specification. AMQP XQuery Exchanges aren't part of the single document AMQP Specification. Therefore, the AMQP Agreement doesn't factor in. Therefore, this patent is not subject to an automatic grant. Remember, this patent doesn't cover AMQP itself (and nobody's ever claimed that it does). Rather, it patents a quite obvious extension to AMQP. That's the problem: it's extension rather than core. The only way around this at the moment given the licensing of the AMQP specification would be to add XQuery-based Exchanges to the AMQP specification (make it core rather than extension). However, since most work on the AMQP specification is to make it smaller and focus on standardized/interoperable extensions, this isn't a great solution. In short, not impressed with the response. I didn't expect more, but this isn't a great state of play for those of us who care about efficient, vendor neutral message oriented middleware. I am aware that the AMQP Working Group is working within themselves to try to resolve this situation, and I wish them all the best luck in that!
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