NullPointerException after upgrading from apache-tomcat-8.5.47 to apache-tomcat-8.5.49

After upgrading from apache-tomcat-8.5.47 to apache-tomcat-8.5.49, got this exception when loading jspx page:

{{java.lang.NullPointerException
at org.apache.myfaces.trinidadinternal.skin.AgentAtRuleMatcher$TouchScreenCapabilityMatcher.match(AgentAtRuleMatcher.java:863)
at org.apache.myfaces.trinidadinternal.skin.AgentAtRuleMatcher.match(AgentAtRuleMatcher.java:502)
at org.apache.myfaces.trinidadinternal.style.xml.parse.StyleSheetNode._compareBrowserAndVersion(StyleSheetNode.java:379)
at org.apache.myfaces.trinidadinternal.style.xml.parse.StyleSheetNode.compareVariants(StyleSheetNode.java:194)
at org.apache.myfaces.trinidadinternal.style.xml.parse.StyleSheetDocument._getStyleSheets(StyleSheetDocument.java:569)
at org.apache.myfaces.trinidadinternal.style.xml.parse.StyleSheetDocument.getStyleSheetsAsCollection(StyleSheetDocument.java:201)
at org.apache.myfaces.trinidadinternal.style.xml.parse.StyleSheetDocument.getStyleSheets(StyleSheetDocument.java:196)
at org.apache.myfaces.trinidadinternal.style.cache.FileSystemStyleCache._getNamespacePrefixes(FileSystemStyleCache.java:1324)
at org.apache.myfaces.trinidadinternal.style.cache.FileSystemStyleCache._getStyleSheetDocument(FileSystemStyleCache.java:956)
at org.apache.myfaces.trinidadinternal.style.cache.FileSystemStyleCache._getEntry(FileSystemStyleCache.java:425)
at org.apache.myfaces.trinidadinternal.style.cache.FileSystemStyleCache.getStyleSheetURIs(FileSystemStyleCache.java:142)
at org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.StyleSheetRenderer.encodeAll(StyleSheetRenderer.java:81)
at org.apache.myfaces.trinidad.render.CoreRenderer.delegateRenderer(CoreRenderer.java:688)
at org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.HeadRenderer.encodeEnd(HeadRenderer.java:97)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:551)
at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:1239)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:823)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:819)
at javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:551)
at org.apache.myfaces.shared.view.JspViewDeclarationLanguageBase.actuallyRenderView(JspViewDeclarationLanguageBase.java:351)
at org.apache.myfaces.shared.view.JspViewDeclarationLanguageBase.renderView(JspViewDeclarationLanguageBase.java:200)
at org.apache.myfaces.trinidad.view.ViewDeclarationLanguageWrapper.renderView(ViewDeclarationLanguageWrapper.java:101)
at org.apache.myfaces.trinidadinternal.application.ViewDeclarationLanguageFactoryImpl$ChangeApplyingVDLWrapper.renderView(ViewDeclarationLanguageFactoryImpl.java:338)
at org.apache.myfaces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:313)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:58)
at org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:170)
at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:116)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:267)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:200)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at pervasync.server.console.AccessControlFilter.doFilter(SourceFile:97)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:350)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:226)
at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at pervasync.server.console.JspxRedirectFilter.doFilter(SourceFile:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:528)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:798)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:810)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)}}

{{}}

We also see the following with older skins:

{{java.lang.ClassCastException: org.apache.myfaces.trinidadinternal.style.UnmodifiableStyle cannot be cast to org.apache.myfaces.trinidadinternal.style.CoreStyle
at org.apache.myfaces.trinidadinternal.ui.laf.base.xhtml.XhtmlLafUtils.getClassStyle(XhtmlLafUtils.java:227)
at org.apache.myfaces.trinidadinternal.ui.laf.base.xhtml.XhtmlLafRenderer.renderStyleClassAttribute(XhtmlLafRenderer.java:817)
at org.apache.myfaces.trinidadinternal.ui.laf.base.xhtml.XhtmlLafRenderer.renderStyleAttrs(XhtmlLafRenderer.java:542)
at org.apache.myfaces.trinidadinternal.ui.laf.base.xhtml.XhtmlLafRenderer.renderStyleAttrs(XhtmlLafRenderer.java:563)
at org.apache.myfaces.trinidadinternal.ui.laf.base.xhtml.XhtmlLafRenderer.renderAttributesExceptID(XhtmlLafRenderer.java:266)
at org.apache.myfaces.trinidadinternal.ui.laf.base.xhtml.XhtmlLafRenderer.renderAttributes(XhtmlLafRenderer.java:285)
at org.apache.myfaces.trinidadinternal.ui.laf.simple.desktop.GlobalHeaderRenderer.renderAttributes(GlobalHeaderRenderer.java:76)
at org.apache.myfaces.trinidadinternal.ui.ElementRenderer.prerender(ElementRenderer.java:76)
at org.apache.myfaces.trinidadinternal.ui.laf.base.xhtml.XhtmlLafRenderer.prerender(XhtmlLafRenderer.java:201)
at org.apache.myfaces.trinidadinternal.ui.laf.simple.desktop.GlobalHeaderRenderer.prerender(GlobalHeaderRenderer.java:90)
at org.apache.myfaces.trinidadinternal.ui.BaseRenderer.render(BaseRenderer.java:91)
at org.apache.myfaces.trinidadinternal.ui.laf.base.xhtml.XhtmlLafRenderer.render(XhtmlLafRenderer.java:85)
at org.apache.myfaces.trinidadinternal.ui.BaseUINode.render(BaseUINode.java:358)
at org.apache.myfaces.trinidadinternal.ui.BaseUINode.render(BaseUINode.java:313)
at org.apache.myfaces.trinidadinternal.ui.BaseRenderer.renderChild(BaseRenderer.java:425)
at org.apache.myfaces.trinidadinternal.ui.BaseRenderer.renderIndexedChild(BaseRenderer.java:343)
at org.apache.myfaces.trinidadinternal.ui.BaseRenderer.renderIndexedChild(BaseRenderer.java:235)
at org.apache.myfaces.trinidadinternal.ui.BaseRenderer.renderContent(BaseRenderer.java:142)
at org.apache.myfaces.trinidadinternal.ui.BaseRenderer.render(BaseRenderer.java:93)
at org.apache.myfaces.trinidadinternal.ui.laf.base.xhtml.XhtmlLafRenderer.render(XhtmlLafRenderer.java:85)
at org.apache.myfaces.trinidadinternal.ui.BaseUINode.render(BaseUINode.java:358)
at org.apache.myfaces.trinidadinternal.ui.BaseUINode.render(BaseUINode.java:313)
at org.apache.myfaces.trinidadinternal.ui.BaseRenderer.renderChild(BaseRenderer.java:425)
at org.apache.myfaces.trinidadinternal.ui.BaseRenderer.renderNamedChild(BaseRenderer.java:397)
at org.apache.myfaces.trinidadinternal.ui.laf.base.desktop.PageHeaderLayoutRenderer.renderPageHeaderChild(PageHeaderLayoutRenderer.java:480)
at org.apache.myfaces.trinidadinternal.ui.laf.base.desktop.PageHeaderLayoutRenderer._renderGlobalHeader(PageHeaderLayoutRenderer.java:601)
at org.apache.myfaces.trinidadinternal.ui.laf.base.desktop.PageHeaderLayoutRenderer.renderContent(PageHeaderLayoutRenderer.java:454)
at org.apache.myfaces.trinidadinternal.ui.BaseRenderer.render(BaseRenderer.java:93)
at org.apache.myfaces.trinidadinternal.ui.laf.base.xhtml.XhtmlLafRenderer.render(XhtmlLafRenderer.java:85)
at org.apache.myfaces.trinidadinternal.ui.BaseUINode.render(BaseUINode.java:358)
at org.apache.myfaces.trinidadinternal.ui.BaseUINode.render(BaseUINode.java:313)
at org.apache.myfaces.trinidadinternal.ui.BaseRenderer.renderChild(BaseRenderer.java:425)
at org.apache.myfaces.trinidadinternal.ui.BaseRenderer.renderIndexedChild(BaseRenderer.java:343)
at org.apache.myfaces.trinidadinternal.ui.BaseRenderer.renderIndexedChild(BaseRenderer.java:235)
at org.apache.myfaces.trinidadinternal.ui.BaseRenderer.renderContent(BaseRenderer.java:142)
at org.apache.myfaces.trinidadinternal.ui.BaseRenderer.render(BaseRenderer.java:93)
at org.apache.myfaces.trinidadinternal.ui.laf.base.xhtml.XhtmlLafRenderer.render(XhtmlLafRenderer.java:85)
at org.apache.myfaces.trinidadinternal.ui.BaseUINode.render(BaseUINode.java:358)
at org.apache.myfaces.trinidadinternal.ui.BaseUINode.render(BaseUINode.java:313)
at org.apache.myfaces.trinidadinternal.ui.composite.UINodeRenderer.renderWithNode(UINodeRenderer.java:104)
at org.apache.myfaces.trinidadinternal.ui.composite.UINodeRenderer.render(UINodeRenderer.java:50)
at org.apache.myfaces.trinidadinternal.uinode.UIXComponentUINode.renderInternal(UIXComponentUINode.java:192)
at org.apache.myfaces.trinidadinternal.uinode.UINodeRendererBase.encodeEnd(UINodeRendererBase.java:70)
at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:1239)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:823)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:659)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeAllChildren(CoreRenderer.java:674)
at org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.PanelPartialRootRenderer.renderContent(PanelPartialRootRenderer.java:70)
at org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.BodyRenderer.renderContent(BodyRenderer.java:160)
at org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.PanelPartialRootRenderer.encodeAll(PanelPartialRootRenderer.java:153)
at org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.BodyRenderer.encodeAll(BodyRenderer.java:83)
at org.apache.myfaces.trinidad.render.CoreRenderer.delegateRenderer(CoreRenderer.java:688)
at org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.DocumentRenderer.encodeAll(DocumentRenderer.java:110)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:538)
at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:1239)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:823)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:659)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeAllChildren(CoreRenderer.java:674)
at org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.PanelPartialRootRenderer.renderContent(PanelPartialRootRenderer.java:70)
at org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.BodyRenderer.renderContent(BodyRenderer.java:160)
at org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.PanelPartialRootRenderer.encodeAll(PanelPartialRootRenderer.java:153)
at org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.BodyRenderer.encodeAll(BodyRenderer.java:83)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:538)
at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:1239)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:823)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:819)
at javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:551)
at org.apache.myfaces.shared.view.JspViewDeclarationLanguageBase.actuallyRenderView(JspViewDeclarationLanguageBase.java:351)
at org.apache.myfaces.shared.view.JspViewDeclarationLanguageBase.renderView(JspViewDeclarationLanguageBase.java:200)
at org.apache.myfaces.trinidad.view.ViewDeclarationLanguageWrapper.renderView(ViewDeclarationLanguageWrapper.java:101)
at org.apache.myfaces.trinidadinternal.application.ViewDeclarationLanguageFactoryImpl$ChangeApplyingVDLWrapper.renderView(ViewDeclarationLanguageFactoryImpl.java:338)
at org.apache.myfaces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:313)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:58)
at org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:170)
at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:116)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:267)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:200)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at pervasync.server.console.AccessControlFilter.doFilter(SourceFile:97)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:350)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:226)
at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at pervasync.server.console.JspxRedirectFilter.doFilter(SourceFile:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:528)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:798)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:810)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)}}{{}}