Problem loading Truffle service providers in Graal

[Alan Bateman]

On 26/02/2017 13:13, Doug Simon wrote:
> :
> Also, what if there's provider in jdk.internal.vm.compiler itself? Will it be loaded along with the providers on my module path?
>
If it has `provides com.oracle.truffle.api.object.LayoutFactory` then it 
will be located too. If the provider interface is only for overriding 
then you could use 
ServiceLoader.load(LayerFactory.class).findFirst().orElse(DefaultLayoutFactory.get()) 
so that it use a default/fallback implementation in your module when 
there isn't a provider deployed on the module path.

-Alan