Instruments

[Marc Petit-Huguenin]

Hi,

I am trying to implement a simple Instrument.  That instrument contains an abstract class as a service that I want to use in my language launcher by using engine.getInstruments().get("myinstrument").lookup(MyClass.class), and in my language implementation using env.lookup(env.getInstruments().get("myinstrument"), MyClass.class).

The path for the instrument implementation is added to the truffle.class.path.append property, as is the path for the language implementation, and I can retrieve a MyClass instance in the language implementation.  But I cannot retrieve an instance in the launcher (i.e. it returns null), probably because of a different class loader.  I tried with -XX:-UseJVMCIClassLoader, that did not help.

What am I doing wrong?

Thanks.

-- 
Marc Petit-Huguenin
Email: marc at petit-huguenin.org
Blog: https://marc.petit-huguenin.org
Profile: https://www.linkedin.com/in/petithug