Diego Parra

@mladens you are reenabling the instrumentation on `sun.*` in `executor-service` instrumentation? You need a little of more work if you want to instrument classes in the `bootstrap`, i.g. in the...

@kubukoz @mladens In order to instrument `CompletionHandler` we can do the following: ```scala package kamon.instrumentation.handler import kamon.instrumentation.context.{CaptureCurrentContextOnExit, HasContext, InvokeWithCapturedContext} import kanela.agent.api.instrumentation.InstrumentationBuilder class CompletionHandlerInstrumentation extends InstrumentationBuilder { onSubTypesOf("java.nio.channels.CompletionHandler") .mixin(classOf[HasContext.Mixin]) .advise(isConstructor, CaptureCurrentContextOnExit)...

I think is a good idea!

@parttimenerd I'm just starting to throw some lines on an idea of how to interact with the contextId and it would be very helpful to be able to play with...