Axon

CosIdIdentifierFactory (artifact cosid-axon, package me.ahoo.cosid.axon) gives Axon 4's identifiers as CosId text ids. Tested with Axon 4.13. Axon 5 has no IdentifierFactory.

Axon creates its IdentifierFactory through ServiceLoader and keeps it in a JVM-wide static, so the factory cannot be handed a runtime. It holds a static stack of bindings instead, the only static state in CosId 5:

• CosIdIdentifierFactory.bind(runtime, generator) pushes a binding, and the most recent one gives the identifiers. Closing the returned binding removes exactly that one, so closing one of several Spring contexts leaves the others bound.
• Spring Boot binds the context's runtime right after it starts and unbinds it right before it closes. The generator is cosid.axon.generator-name, else the system property cosid.axon, else default.
• Without Spring: try (var binding = CosIdIdentifierFactory.bind(runtime, null)) { … }, or pass new CosIdIdentifierFactory(runtime, generator) where Axon takes a factory.
• With nothing bound, the factory throws IllegalStateException saying how to bind a runtime, as 4.x did.