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http://jira.jboss.com/jira/browse/JBSEAM-2597?page=comments#action_12399899 ]
Pete Muir commented on JBSEAM-2597:
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1) is JSF - exception is swallowed in UIInput:updateModel - there are no hooks in JSF to
implement custom exception handling. In fact i believe the behaviour you are seeing is
mandated by the spec.
Exception handling - JSF swallows exceptions in certain phases
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Key: JBSEAM-2597
URL:
http://jira.jboss.com/jira/browse/JBSEAM-2597
Project: JBoss Seam
Issue Type: Feature Request
Components: Core
Reporter: Shane Bryzak
Fix For: 2.1.0.GA
I can't reproduce this right now but I'm sure I spent several hours
with a debugger only to find out that I had a typo in a value binding
and that the exception was completely swallowed during an early JSF
phase (UPDATE MODEL probably). There was nothing in the log, the
action phase just never executed. This is a major issue (obviously)
for another subtle reason: Beginners have trouble understanding the
JSF lifecycle and processing phases - I know I did. You begin to hate
JSf when you don't understand why a certain phase does not execute.
I'd start reproducing it by generating an NPE in a value binding
setter, that should do it.
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