On 20/04/2023 14:55, Josiah Noel wrote:
:
if we don't export the implementation class, then the
ServiceLoader becomes the only mechanism by which it can be
instantiated. In this case, if the user doesn't add the optional
interface dependency, it becomes impossible to accidentally load the
interface and get a ClassNotFoundException when using module Y's
non-SPI packages.
There could be code in the module that references the implementation
class, in which case you might get NCDFE at runtime. Requires-static
might be okay during initial migration of older code that is okay with
dangling references and uses reflection guards. For reliability, it is
usually better to use services to implement optionality.
-Alan
