How to load resources from base module
Alan Bateman
Alan.Bateman at oracle.com
Wed May 17 10:23:17 UTC 2017
On 17/05/2017 10:54, wzberger wrote:
> Looks like I'm having an encapsulation issue with resources. Class B
> belongs to module b and extends Class A in module a. Class B provides
> resources which should be loaded from base class A.
>
> However, calling
>
> getInstance().getClass().getResource(...)
>
> from a static method in class A fails while calling from class B works
> fine. Because getInstance() returns Class B I wonder why the resource
> can't be loaded. Any recommendation on how to get this working?
The details are in the javadoc but in summary:
Code in `b` can locate any resource in `b`.
Code in `a` can any locate any ".class" resource in `b`. It can also
locate any resources in "non-package" locations such as META-INF/**.
Resources that are located in b's packages are encapsulated and so `b`
needs to `opens <package> to a` to allow code in module `a` to locate
the resources.
-Alan.
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