[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-3354) ELException catched in lifecycle phase RENDER_RESPONSE about: the raised exception does not have a readable property

ELException catched in lifecycle phase RENDER_RESPONSE about: the raised exception does not have a readable property -------------------------------------------------------------------------------------------------------------------- Key: JBSEAM-3354 URL: https://jira.jboss.org/jira/browse/JBSEAM-3354 Project: Seam Issue Type: Bug Components: EL Affects Versions: 2.0.0.GA Environment: Jboss 4.2.1.GA, JDK 1.5.0_11 Reporter: Julien Kronegg Assignee: Pete Muir Fix For: 2.1.0.CR1 When an Exception with a specific getter pattern is raised in the ".page.xml" page, the Seam debug page is not displayed, but instead gives a 404 error and the log contains the follow trace: 22:17:09,328 WARN [lifecycle] phase(RENDER_RESPONSE 6,com.sun.faces.context.FacesContextImpl@2f1e34) threw exception: javax.el.ELException: /file:/C:/Workspace/jboss-4.2.1.GA/server/default/deploy/networking20.ear/networking20.war/WEB-INF/lib/jboss-seam-debug.jar!/META-INF/debug.xhtml: The class 'org.hibernate.exception.NestableRuntimeException' does not have a readable property 'message'. /file:/C:/Workspace/jboss-4.2.1.GA/server/default/deploy/networking20.ear/networking20.war/WEB-INF/lib/jboss-seam-debug.jar!/META-INF/debug.xhtml: The class 'org.hibernate.exception.NestableRuntimeException' does not have a readable property 'message'. com.sun.facelets.compiler.TextInstruction.write(TextInstruction.java:48) com.sun.facelets.compiler.UIInstructions.encodeBegin(UIInstructions.java:39) com.sun.facelets.compiler.UILeaf.encodeAll(UILeaf.java:149) com.sun.facelets.component.RepeatRenderer.encodeChildren(RepeatRenderer.java:50) com.sun.facelets.component.UIRepeat.process(UIRepeat.java:357) com.sun.facelets.component.UIRepeat.encodeChildren(UIRepeat.java:617) com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:244) com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:249) com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:249) org.jboss.seam.debug.jsf.SeamDebugPhaseListener.beforePhase(SeamDebugPhaseListener.java:51) com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:222) com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144) javax.faces.webapp.FacesServlet.service(FacesServlet.java:245) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73) org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:44) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:154) org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:260) org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:366) org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:493) org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433) org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580) org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) java.lang.Thread.run(Thread.java:595) This can be reproduced with the following test case: ------------------------------------------------ class A -------------------------------------- import javax.ejb.Local; @Local public interface A { public String getMessage(); public String getMessage(int num); public String getMessage2(); public String getMessage3(); public void destroy(); } ------------------------------------------------------------------------------------------------- --------------------------------- class AAction (extends A) ---------------------------- import javax.ejb.Remove; import javax.ejb.Stateful; import org.hibernate.exception.NestableRuntimeException; import org.jboss.seam.annotations.Destroy; import org.jboss.seam.annotations.Name; @Stateful @Name("a") public class AAction implements A { public String getMessage1() { return "foobar"; } public String getMessage1(int i) { return ""+i; } public String getMessage2() { throw new NestableRuntimeException("xxx"); } public String getMessage3() { throw new IndexOutOfBoundsException("xxx"); } @Destroy @Remove public void destroy() {} } -------------------------------------------------------------------------------------------- --------------------------------------- a.xhtml ------------------------------------------ <!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <ui:composition xmlns="http://www.w3.org/1999/xhtml" xmlns:ui="http://java.sun.com/jsf/facelets"> </ui:composition> ------------------------------------------------------------------------------------------- ---------------------------------------a.page.xml ------------------------------------- <page> <action execute="#{a.getMessage2}"/> </page> -------------------------------------------------------------------------------------------- Depending on the "execute" field in the "a.page.xml" page, the result is not the same: - "#{a.getMessage1}" => the A.getMessage1() method is executed normally - "#{a.getMessage2}" => the stacktrace above is displayed in the log files and the page is breaked (error 404?) - "#{a.getMessage3}" => the Seam debug page is displayed with a description of the exception (here, an IndexOutOfBoundsException was chosen) The excepted behavior would be that all exceptions lead to displaying the Seam debug page. The short story about why the "a.getMessage2" test case displays the stacktrace is the following: to generate the Seam debug page, exception message must be obtained. The raised exception (NestableRuntimeException) has a getter getMessage() and another getMessage(int), and javax.el.BeanELResolver (used to execute the EL) which uses java.beans.Introspector (the builder used to compute the list of properties) cannot recognize the getMessage() getter because the Introspector merges getMessage() and getMessage(int) into getMessage(int). Consequently, the exception appears to have no getMessage() method (from the BeanELResolver viewpoint), which causes the Seam debug page to break. The long story is here: http://seamframework.org/Community/AnybodyHitThisBugInSeam#comment35710 IMHO, this is a problem in the javax.el.BeanELResolver (from el-api.jar), which uses the very generic and complicated java.beans.Introspector class for a very simple use of obtaining the getters and setters. I know that its a JDK/javax.el issue, but Pete Muir suggested me to file a JIRA issue, so there it is. The difficulty behind that issue is that the BeanELResolver and Introspector are used for multiple purposes and that correcting them could imply large side effects, so it is probably why the issue has not yet been corrected in the BeanELResolver.