Hi all,

I am posting the result of solution to make Weld work as JPMS auto module.

In this solution I use only module path. I manually create JPMS layer and add 
all modules
to it. For Weld I added the following modules:

    <module file="cdi-api-2.0.jar"/>
    <module file="javax.annotation-api-1.3.2.jar"/>
    <module file="javax.inject-1.jar"/>
    <module file="javax.interceptor-api-1.2.jar"/>
    <module file="jboss-classfilewriter-1.2.2.Final.jar"/>
    <module file="jboss-logging-3.2.1.Final.jar"/>
    <module file="guava-18.0.jar"/>
    <module file="weld-se-core-3.0.4.Final.jar"/>
    <module file="weld-environment-common-3.0.4.Final.jar"/>
    <module file="weld-core-impl-3.0.4.Final.jar"/>
    <module file="weld-spi-3.0.SP3.jar"/>
    <module file="weld-api-3.0.SP3.jar"/>
    <module file="jandex-2.0.5.Final.jar"/>

Note, that jandex is 2.0.5 but not 2.0.3 as 2.0.3 doesn't work well with java9. 
Besides Weld modules
I have two modules - in beanModule( here I have my cdi beans + beans.xml) and 
serverModule (here
I create Weld etc).

In serverModule I have the following code:

Weld builder = new Weld()
                .property("org.jboss.weld.construction.relaxed", true)
                .setClassLoader(this.getClass().getClassLoader())
                .setResourceLoader(new ResourceLoaderImpl());
WeldContainer container = builder.initialize();
BeanManager bm = container.getBeanManager();

This is my ResourceLoaderImpl:

public class ResourceLoaderImpl implements ResourceLoader {

    private static final String ERROR_LOADING_CLASS = "Error loading class ";

    @Override
    public Class<?> classForName(String name) {
        try {
            return Class.forName(name);
        } catch (ClassNotFoundException e) {
            throw new ResourceLoadingException(ERROR_LOADING_CLASS + name, e);
        } catch (LinkageError e) {
            throw new ResourceLoadingException(ERROR_LOADING_CLASS + name, e);
        } catch (TypeNotPresentException e) {
            throw new ResourceLoadingException(ERROR_LOADING_CLASS + name, e);
        }
    }

    @Override
    public URL getResource(String name) {
        try {
            Module module = 
this.getClass().getModule().getLayer().findModule("beanModule").orElse(null);
            ModuleReference reference = getReference(module);
            Optional<URI> uri = reference.open().find(name);
            if (uri.isPresent()) {
                return uri.get().toURL();
            } else {
                return null;
            }
        } catch (MalformedURLException ex) {
            ex.printStackTrace();
        } catch (IOException ex) {
            ex.printStackTrace();
        }
        return null;
    }

    @Override
    public Collection<URL> getResources(String name) {
        List<URL> result = new ArrayList<>();
       //HERE WE NEED MODULE ITERATION
        URL url = this.getResource(name);
        if (url != null) {
            result.add(url);
        }
        return result;
    }

    @Override
    public void cleanup() {  }
}

In beanModule in module-info I open packages, that contains beans.

The solution WORKS, via BeanManager I can get whatever bean I need. The only 
problem is that I can't
understand what I should return in getResouce(String) if I have many modules - 
what module first I should
return? For example, when weld calls getResource("META-INF/beans.xml") - ?

It would be very interesting to to get some comments.
-- 
Best regards, Alex
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