ProductionMode in Annotations with Vaadin 8 OSGi Liferay portlet

I was unable to find documentation about how to turn productionMode on with Vaadin 8 OSGi Liferay Portlets using Annotations. The document I refer to is https://vaadin.com/docs/v8/framework/portal/portal-osgi.

However, after some debugging with Vaadin 8.14.3 server's checkProductionMode method it seemed that there are (at least) two options to choose from to get a Liferay OSGi portlet with Annotations to turn productionMode on.

1. Turn on production mode globally by adding JVM parameter
   -Dvaadin.productionMode=true

or

2. Turn on production mode for a single portlet by adding productionMode property into @Component annotation. A sample @Component annotation with production mode turned on would look like this:

@Component(service = UI.class, property = {
        "com.liferay.portlet.display-category=category.vaadin",
        "javax.portlet.name=my.vaadin.app.app.1.0.0",
        "javax.portlet.display-name=Tutorial Portlet",
        "javax.portlet.security-role-ref=power-user,user",
        "javax.portlet.init-param.productionMode=true",
        "com.vaadin.osgi.liferay.portlet-ui=true"},
        scope = ServiceScope.PROTOTYPE)

@VaadinLiferayPortletConfiguration does not support productionMode parameter and adding productionMode property into the @Component annotation when using @VaadinLiferayPortletConfiguration had no affect.

I also noticed that if a Liferay page contained multiple Vaadin portlets, turning productionMode to false in one portlet enabled debug mode for all portlets on that page.

I used Liferay 7.3.5 & Vaadin 8.14.3 and Liferay 7.4.3.10 & Vaaadin 8.16.0 in my tests.

Start with the linked Vaadin 8 portal OSGi documentation and review the @Component and @VaadinLiferayPortletConfiguration annotation examples described in the issue. Document the supported ways to enable productionMode for Liferay OSGi portlets, including the global JVM property and per-portlet setting, and clarify the reported multi-portlet behavior.