Apparent incompatibility between Rain MenuRenderer and Primefaces 15?

[murgaster]

I purchased the Rain template a couple of years ago - works great. The menu was the big seller.
I finally got around to upgrading from Primefaces 14.08 to 15.08 and suddenly encountered this error. This is on Tomee 10.0.1 using Mojarra. I can stick with Primefaces 14, but that is not ideal. Primefaces and the template are all packaged in the WAR - very standard.

The exceptions is on any page load. The last posted version of Rain was release 5 - which doesn't seem to solve this issue.

Any thoughts here? Seems that I'd have to switch templates to Ultima to get the same menu. It's a tiny non-profit and would be a lot of work. I'd like to know definitively that before I do it. I know Rain isn't sold anymore.

06-Oct-2025 06:11:00.684 SEVERE [http-nio-8080-exec-4] org.primefaces.application.exceptionhandler.PrimeExceptionHandler.logException class org.primefaces.rain.component.RainMenuRenderer tried to access private method 'org.primefaces.util.WidgetBuilder org.primefaces.util.WidgetBuilder.init(java.lang.String, java.lang.String, java.lang.String)' (org.primefaces.rain.component.RainMenuRenderer and org.primefaces.util.WidgetBuilder are in unnamed module of loader org.apache.tomee.catalina.TomEEWebappClassLoader @62d1cc99)
	java.lang.IllegalAccessError: class org.primefaces.rain.component.RainMenuRenderer tried to access private method 'org.primefaces.util.WidgetBuilder org.primefaces.util.WidgetBuilder.init(java.lang.String, java.lang.String, java.lang.String)' (org.primefaces.rain.component.RainMenuRenderer and org.primefaces.util.WidgetBuilder are in unnamed module of loader org.apache.tomee.catalina.TomEEWebappClassLoader @62d1cc99)
		at org.primefaces.rain.component.RainMenuRenderer.encodeScript(RainMenuRenderer.java:338)
		at org.primefaces.component.menu.BaseMenuRenderer.encodeEnd(BaseMenuRenderer.java:60)
		at jakarta.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:586)
		at jakarta.faces.component.UIComponent.encodeAll(UIComponent.java:1442)
		at jakarta.faces.render.Renderer.encodeChildren(Renderer.java:146)
		at jakarta.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:557)
		at jakarta.faces.component.UIComponent.encodeAll(UIComponent.java:1435)
		at jakarta.faces.component.UIComponent.encodeAll(UIComponent.java:1438)
		at jakarta.faces.component.UIComponent.encodeAll(UIComponent.java:1438)
		at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:448)
		at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:160)
		at jakarta.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:125)
		at jakarta.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:125)
		at org.omnifaces.viewhandler.OmniViewHandler.renderView(OmniViewHandler.java:165)
		at jakarta.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:125)
		at jakarta.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:125)
		at com.ridestats.web.filters.CustomViewHandler.renderView(CustomViewHandler.java:64)
		at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:93)
		at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:72)
		at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:150)
		at jakarta.faces.webapp.FacesServlet.executeLifecyle(FacesServlet.java:692)
		at jakarta.faces.webapp.FacesServlet.service(FacesServlet.java:449)
		at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:195)
		at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
		at com.ridestats.web.filters.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:22)
		at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
		at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
		at org.omnifaces.filter.FacesExceptionFilter.doFilter(FacesExceptionFilter.java:122)
		at org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:108)
		at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
		at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
		at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
		at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
		at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
		at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
		at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
		at org.apache.openejb.server.httpd.EEFilter.doFilter(EEFilter.java:67)
		at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
		at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
		at com.ridestats.web.filters.LoginFilter.doFilter(LoginFilter.java:88)
		at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
		at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
		at com.ridestats.web.filters.IdentityFilter.doFilter(IdentityFilter.java:77)
		at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
		at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
		at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167)
		at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
		at org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
		at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:483)
		at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115)
		at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
		at org.apache.tomee.catalina.OpenEJBSecurityListener$RequestCapturer.invoke(OpenEJBSecurityListener.java:97)
		at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:670)
		at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
		at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344)
		at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:397)
		at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
		at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:905)
		at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743)
		at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
		at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1190)
		at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
		at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63)
		at java.base/java.lang.Thread.run(Thread.java:1583)

[murgaster]

Alas, my search in Github didn't find anything, but a search on the greater web found this.

https://github.com/orgs/primefaces/discussions/4042

Looks like a known problem. Unfortunately, this patch probably isn't compatible with the RainMenuRenderer and I don't have full source anyways.

Is there an alternative for those who purchased these templates that are no longer maintained? It says that others were updated for this (post above as of 2 weeks ago).

[tandraschko]

Maybe @melloware can give you a patched Version. Maybe you create some.points in the existing template migration guide?

[melloware]

Let me look I think I did upgrade Rain for someone else!

[melloware]

@murgaster here you go...
RainMenuRenderer.zip

That makes it work for PF 15.