[jbossseam-issues] [JBoss JIRA] Created: (JBSEAM-3271) Exceptions handled by pages.xml with no viewId defined in the redirect element fail

[Scott Olcott (JIRA)]

Exceptions handled by pages.xml with no viewId defined in the redirect element fail
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                 Key: JBSEAM-3271
                 URL: https://jira.jboss.org/jira/browse/JBSEAM-3271
             Project: Seam
          Issue Type: Bug
    Affects Versions: 2.1.0.A1, 2.0.3.CR1, 2.0.2.SP1
         Environment: tomcat/jbpm
            Reporter: Scott Olcott


When I define an exception in pages.xml with not viewId on the redirect like following:
<exception class="org.hibernate.exception.ConstraintViolationException">
    <redirect>
        <message>There was a unique constraint exception.</message>
    </redirect>
  </exception>

I get the following stack trace:
javax.el.ELException: Expression cannot be null
	at org.jboss.el.lang.ExpressionBuilder.createNodeInternal(ExpressionBuilder.java:92)
	at org.jboss.el.lang.ExpressionBuilder.build(ExpressionBuilder.java:151)
	at org.jboss.el.lang.ExpressionBuilder.createValueExpression(ExpressionBuilder.java:195)
	at org.jboss.el.ExpressionFactoryImpl.createValueExpression(ExpressionFactoryImpl.java:68)
	at org.jboss.seam.el.SeamExpressionFactory.createValueExpression(SeamExpressionFactory.java:98)
	at org.jboss.seam.core.Expressions$1.createExpression(Expressions.java:106)
	at org.jboss.seam.core.Expressions$1.toUnifiedValueExpression(Expressions.java:98)
	at org.jboss.seam.core.Expressions$1.getValue(Expressions.java:111)
	at org.jboss.seam.exception.ConfigRedirectHandler.getViewId(ConfigRedirectHandler.java:50)
	at org.jboss.seam.exception.RedirectHandler.handle(RedirectHandler.java:33)
	at org.jboss.seam.exception.Exceptions.handle(Exceptions.java:75)
	at org.jboss.seam.web.ExceptionFilter.endWebRequestAfterException(ExceptionFilter.java:114)
	at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:70)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:150)
	at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:267)
	at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:379)
	at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:506)
	at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
	at java.lang.Thread.run(Thread.java:636)

This should work and just redirect to the current page.  Section 6.11.5.  in the documentation demonstrates this for AuthorizationException.  

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