Use RenderRequest locale to get the portlet title

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.2.0 CE M2
• Fix Version/s: 6.2.0 CE M2
• Component/s: Dev Tools, Dev Tools > Plugins SDK
• Labels:
  • 6.1_release_notes
  • liferay-fixpack-platform-22-6130
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/6700
• Bug Type: Regression Bug

LPS-28904 introduced support of title and description translation for multi-portlet plugins on trunk. It could seem at first sight that this LPS solved the page title problem on trunk, but it doesn't work properly:

PortalImpl.java

// ...
public String getPortletTitle(RenderRequest renderRequest) {
		String portletId = (String)renderRequest.getAttribute(
			WebKeys.PORTLET_ID);

		Portlet portlet = PortletLocalServiceUtil.getPortletById(portletId);

		HttpServletRequest request = PortalUtil.getHttpServletRequest(
			renderRequest);

		ServletContext servletContext = (ServletContext)request.getAttribute(
			WebKeys.CTX);

		Locale locale = request.getLocale();

		return getPortletTitle(portlet, servletContext, locale);
	}
// ...

>>> During the creation of HttpServletRequest the original locale of RenderRequest (e.g. fr_FR) is being lost, and the new request will have different locale.
More precisely: The locale of the newly created HttpServletRequest will be equal to the value of the renderRequest's "Accept-Language" header, which is equal to the given browser's locale, regardless of the set portal displayLocale or portal defaultLocale.

Changing the portal's default locale doesn't solve the problem.