<T extends WorkParameters> SimpleActionExecutionSpec<T> newSimpleSpec(IsolatedParametersActionExecutionSpec<T> spec);

    <T extends WorkParameters> SimpleActionExecutionSpec<T> newSimpleSpec(TransportableActionExecutionSpec spec);

        T params = Cast.uncheckedCast(spec.getIsolatedParams().isolate());
        return new SimpleActionExecutionSpec<>(spec.getImplementationClass(), params, spec.isInternalServicesRequired());
    }

    @Override
    public <T extends WorkParameters> SimpleActionExecutionSpec<T> newSimpleSpec(TransportableActionExecutionSpec spec) {

                // Deserialize the class and parameters in the workerClassLoader (the context classloader)
                SimpleActionExecutionSpec<?> effectiveSpec = actionExecutionSpecFactory.newSimpleSpec(spec);
                return worker.execute(effectiveSpec);
            }
        });
    }

                            @Nullable
                            @Override
                            public DefaultWorkResult create() {
                                return workerServer.execute(specFactory.newSimpleSpec(workSpec));
                            }
                        });
                    } finally {
                        //TODO the async work tracker should wait for children of an operation to finish first.