[seam-issues] [JBoss JIRA] (JBSEAM-5080) Seam2.3 NPE in Interpolator.interpolate if pages.xml exception http-error no message set

[Marek Novotny (JIRA)]

Marek Novotny created JBSEAM-5080:
-------------------------------------

             Summary: Seam2.3 NPE in Interpolator.interpolate if pages.xml exception http-error no message set
                 Key: JBSEAM-5080
                 URL: https://issues.jboss.org/browse/JBSEAM-5080
             Project: Seam 2
          Issue Type: Bug
    Affects Versions: 2.3.0.Final
            Reporter: Marek Schmidt
             Fix For: 2.3.1.CR1


Having a exception handler with no message, e.g.

    <exception
        class="org.jboss.seam.example.tasks.ResourceNotFoundException"
        log-level="debug">
        <http-error error-code="404"/>
    </exception>

in pages.xml

will cause an HTTP error 500 instead with a NPE exception:

java.lang.NullPointerException
	org.jboss.seam.core.Interpolator.interpolate(Interpolator.java:64)
	org.jboss.seam.faces.Navigator.getDisplayMessage(Navigator.java:87)
	org.jboss.seam.exception.ErrorHandler.handle(ErrorHandler.java:27)
	org.jboss.seam.exception.Exceptions.handle(Exceptions.java:76)
	org.jboss.seam.web.ExceptionFilter.endWebRequestAfterException(ExceptionFilter.java:114)
	org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:70)
	org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
	org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)


 
Actual results:
Error 500 with NPE

Expected results:
Error 404 with an empty or some default message should appear.

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