Other codebases don't tend to need those tools, because they already use frameworks like Spring or Micronaut which have such features built-in. Usually without bytecode rewriting and with more concern given to API definition.
For example, in Micronaut (which is what I'm more familiar with) you can use @Replace or a BeanCreatedListener to swap out objects at injection time with compatible objects you provide. If a use-site injects Collection<SomeInterface> you can just implement that interface yourself, annotate your class with @Singleton or @Prototype and now your object will appear in those collections. You can use @Order to control the ordering of that collection too to ensure your code runs before the other implementations. And so on - there's lots of ways to write code that modifies the execution of other code, whilst still being understandable and debuggable.
For example, in Micronaut (which is what I'm more familiar with) you can use @Replace or a BeanCreatedListener to swap out objects at injection time with compatible objects you provide. If a use-site injects Collection<SomeInterface> you can just implement that interface yourself, annotate your class with @Singleton or @Prototype and now your object will appear in those collections. You can use @Order to control the ordering of that collection too to ensure your code runs before the other implementations. And so on - there's lots of ways to write code that modifies the execution of other code, whilst still being understandable and debuggable.