On 09/10/2018 17:27, Michał Zegan wrote:
Hello,
I know that modules/module declarations can be annotated. Contrary to
other elements from packages downwards, java has a way to read module
descriptions before creating modules themselves (in fact it is a
required step). I am wondering, why doesn't ModuleDescriptor
contain/parse module annotations from class file? That way the
module-info.class has to be read twice, once for module descriptor, once
for annotations. In addition, if I would like to load annotations of a
module x before it is instantiated (like introspection), I would have to
still use a library like asm or similar.
This is to avoid bloating the API and also to avoid overlapping with the
javax.lang.model API. So yes, if you are scanning observable modules,
maybe to select which modules to resolve based on annotations, then you
will need ASM or something to help you parse the class files. It's the
same thing for tools that scan classes or elements for annotations.
-Alan
