Hello, While testing Tomee10 M2 and migrating my application, I faced one JSF related issue that I was able to replicate with jsf-cdi-and-ejb example with small change [1]. You can either download the WAR file from here [2] or you can build it from the same repository.
When I use both #{param} and #{header} objects in calculator.xhtml, I'm getting the error below. However, If I use only one of them, the page loads fine. <c:if test="#{param.test}" > <div>show if test parameter = true</div> </c:if> <c:if test="#{header['User-Agent'].contains('Firefox')}"> <div>it's firefox</div> </c:if> The same example works perfectly in Tomee 9. Here is the error: ``` jakarta.faces.view.facelets.TagAttributeException: /calculator.xhtml @36,68 test="#{header['User-Agent'].contains('Firefox')}" java.lang.reflect.InvocationTargetException at com.sun.faces.facelets.tag.TagAttributeImpl.getObject(TagAttributeImpl.java:291) at com.sun.faces.facelets.tag.TagAttributeImpl.getBoolean(TagAttributeImpl.java:107) at com.sun.faces.facelets.tag.jstl.core.ChooseWhenHandler.isTestTrue(ChooseWhenHandler.java:46) at com.sun.faces.facelets.tag.jstl.core.ChooseHandler.apply(ChooseHandler.java:63) at jakarta.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:57) at com.sun.faces.facelets.tag.faces.core.ViewHandler.apply(ViewHandler.java:172) at jakarta.faces.view.facelets.DelegatingMetaTagHandler.applyNextHandler(DelegatingMetaTagHandler.java:163) at com.sun.faces.facelets.tag.faces.ComponentTagHandlerDelegateImpl.apply(ComponentTagHandlerDelegateImpl.java:177) at jakarta.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:139) at jakarta.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:57) at com.sun.faces.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:52) at com.sun.faces.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:46) at com.sun.faces.facelets.impl.DefaultFacelet.apply(DefaultFacelet.java:132) at com.sun.faces.application.view.FaceletViewHandlingStrategy.buildView(FaceletViewHandlingStrategy.java:331) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:70) 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 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 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:482) 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$RequestCapturer.invoke(OpenEJBSecurityListener.java:97) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:663) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:389) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:904) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1741) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1190) at org.apache.tomcat.util.threads.ThreadPoolExecutor$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:840) Caused by: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at org.apache.openejb.util.proxy.ClassDefiner.defineClassClassLoader(ClassDefiner.java:98) at org.apache.openejb.util.proxy.ClassDefiner.defineClass(ClassDefiner.java:83) at org.apache.openejb.util.proxy.ClassDefiner.defineAndLoad(ClassDefiner.java:138) at org.apache.webbeans.proxy.AbstractProxyFactory.createProxyClass(AbstractProxyFactory.java:344) at org.apache.webbeans.proxy.AbstractProxyFactory.createProxyClass(AbstractProxyFactory.java:316) at org.apache.webbeans.proxy.NormalScopeProxyFactory.createProxyClass(NormalScopeProxyFactory.java:264) at org.apache.webbeans.proxy.NormalScopeProxyFactory.createProxyClass(NormalScopeProxyFactory.java:192) at org.apache.webbeans.proxy.NormalScopeProxyFactory.createNormalScopeProxy(NormalScopeProxyFactory.java:149) at org.apache.webbeans.container.BeanManagerImpl.getReference(BeanManagerImpl.java:801) at org.apache.webbeans.el22.WebBeansELResolver.getNormalScopedContextualInstance(WebBeansELResolver.java:205) at org.apache.webbeans.el22.WebBeansELResolver.getBeanWithScope(WebBeansELResolver.java:165) at org.apache.webbeans.el22.WebBeansELResolver.getValue(WebBeansELResolver.java:142) at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:139) at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:164) at org.apache.el.parser.AstIdentifier.getValue(AstIdentifier.java:94) at org.apache.el.parser.AstValue.getValue(AstValue.java:137) at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:170) at org.apache.webbeans.el22.WrappedValueExpression.getValue(WrappedValueExpression.java:67) at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:73) at com.sun.faces.facelets.tag.TagAttributeImpl.getObject(TagAttributeImpl.java:289) ... 45 more Caused by: java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:569) at org.apache.openejb.util.proxy.ClassDefiner.defineClassClassLoader(ClassDefiner.java:95) ... 64 more Caused by: java.lang.LinkageError: loader org.apache.tomee.catalina.TomEEWebappClassLoader @6a146a9e attempted duplicate class definition for org.apache.webbeans.custom.Map$$OwbNormalScopeProxy14900025290. (org.apache.webbeans.custom.Map$$OwbNormalScopeProxy14900025290 is in unnamed module of loader org.apache.tomee.catalina.TomEEWebappClassLoader @6a146a9e, parent loader java.net.URLClassLoader @43d7741f) at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017) ... 69 more ``` [1] https://github.com/apache/tomee/tree/main/examples/jsf-cdi-and-ejb [2] https://github.com/aleshi/tomee10_jsf-cdi-and-ejb/blob/main/jsf-cdi-and-ejb.war Thanks, Alex