Java Reflection with Child Classes -


i'm attempting use reflections (as provided org.reflections) handle heavy lifting, , don't need manually create instance every class in long list. however, reflections isn't targeting classes in way i'd expect, causing issue.

my current reflections code:

reflections reflections = new reflections(this.getclass().getpackage().getname() + ".command.defaults"); set<class<? extends command>> commandclasses = reflections.getsubtypesof(command.class);  // iterate through detected/found classes (class c : commandclasses) {     // if class abstract, ignore it.     if (modifier.isabstract(c.getmodifiers())) {         continue;     }      // attempt create instance of class/command whatever.     try {         c.newinstance();     } catch (instantiationexception | illegalaccessexception ex) {         // once, right thing ignore exception.         // if command loaded can't create instance or         // can't access it, skip. but, we'll @ least log (for now).          ex.printstacktrace();     } }

essentially, program has commands present in com.example.command.defaults, they're divided number of sub-packages visual grouping. each command in own class, extends 1 of our 3 abstract classes in com.example.command: playercommand, simplecommand, or command. playercommand , simplecommand extend command.

from understanding, reflections.getsubtypesof(command.class) should allow me target class extends command in way, doesn't seem working way. using debugger tool, i've noticed single class (which extends command) being read system.

how can make reflections code target classes extend command , classes extend class extends command?

acording api documentation, getsubtypesof(class<t> type) gets all sub types in hierarchy of given type stats "depends on subtypesscanner configured".

the issue not classes loaded , known class loader in advanced , therefor don't in result list.


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