NullPointerException thrown when rendering runtime JSF portlets contained in the same WAR

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: liferay-faces-3.2.5-ga6, liferay-faces-4.2.5-ga6, util-1.0.0, util-2.0.0, util-3.0.0
• Fix Version/s: util-2.0.0, util-3.0.0
• Component/s: Liferay Faces Util
• Labels: None

When using <portal:runtime> in a JSF portlet that tries to render a portlet contained in same WAR, it throws and exception:

java.lang.NullPointerException
	at com.liferay.faces.util.context.internal.FacesContextUtilImpl.release(FacesContextUtilImpl.java:49)
	at com.liferay.faces.bridge.internal.BridgePhaseBaseImpl.cleanup(BridgePhaseBaseImpl.java:120)
	at com.liferay.faces.bridge.internal.BridgePhaseRenderImpl.cleanup(BridgePhaseRenderImpl.java:122)
	at com.liferay.faces.bridge.internal.BridgePhaseRenderImpl.execute(BridgePhaseRenderImpl.java:107)
	at com.liferay.faces.bridge.internal.BridgeImpl.doFacesRequest(BridgeImpl.java:135)
	at javax.portlet.faces.GenericFacesPortlet.doView(GenericFacesPortlet.java:258)
	at javax.portlet.GenericPortlet.doDispatch(GenericPortlet.java:359)
	at javax.portlet.faces.GenericFacesPortlet.doDispatch(GenericFacesPortlet.java:207)
	at javax.portlet.GenericPortlet.render(GenericPortlet.java:262)
	at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:103)
	at com.liferay.portlet.ScriptDataPortletFilter.doFilter(ScriptDataPortletFilter.java:55)
	at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:100)
	at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:64)
	at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:112)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:119)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

Probably the FacesContext had already been released (same classloader, same ThreadLocal).

Additionally, I saw that BridgeImpl initialization is being written twice:

11:11:52,918 INFO  [BridgeImpl] Initializing Liferay Faces Bridge 4.2.5-ga6 (Philippi / Aug 11, 2015 AD)
11:11:52,919 INFO  [BridgeImpl] Initializing Liferay Faces Bridge 4.2.5-ga6 (Philippi / Aug 11, 2015 AD)

Attached a sample portlet.

This issue was first posted in forums: https://www.liferay.com/community/forums/-/message_boards/message/64620508