Compatibility with Java 9 modules

This library is fully compatible with Java 9 modules. Since it uses reflection, modules using these features need to be properly “opened”, such as in the following example:

module com.acme.mymodule
  {
    // ...
    opens com.acme.mymodule.impl to it.tidalwave.messagebus.spring;
  }

The packages in the opens declaration are those containing the classes that are registered as message bus subscribers.

If this operation is not done, a runtime exception will occur; its message will explain which packages needsto be opened. More information about open modules and reflection is available in this Stack Overflow article.