delegate.addTaskExecutionGraphListener(listener.wrap())
    }

    override fun removeTaskExecutionGraphListener(listener: TaskExecutionGraphListener) {
        delegate.removeTaskExecutionGraphListener(listener.wrap())
    }

    override fun whenReady(closure: Closure<*>) {

            registrationPoint,
            TaskExecutionGraphListener.class,
            listener
        );
    }

    @Override
    public void removeTaskExecutionGraphListener(TaskExecutionGraphListener listener) {
        graphListeners.remove(listener);
    }

    @Override
    public void whenReady(final Closure closure) {
        graphListeners.add(