IdentityConstraint.getSelectorStr() might cause MPE
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Key: XERCESJ-1078
URL: http://issues.apache.org/jira/browse/XERCESJ-1078
Project: Xerces2-J
Type: Bug
Components: XML Schema Structures
Versions: 2.6.2
Environment: Xerces2-J CVS HEAD (Mai 12, 2005)
Reporter: Kurt Riede
in case of an invalid schema file with the error "s4s-elt-must-match.2"
(The content of 'identity constraint' must match (annotation?, selector,
field+). Not enough elements were found.) the attribute fSelector might be null
and thus the method getSelectorStr() causes a NPE.
In my case, anylsing invalid schema files (as good as possible) it is important
not to have this exception, so I'm working with my own patched version of
Xerces2-J. It would be nice if you would fix this somewhen.
Example from schema test suite to preproduce:
msxsdtest\identityConstraint\idB059.xsd
My fix is quite simple: just check on null:
Old:
return fSelector.toString();
New:
return fSelector == null ? null : fSelector.toString();
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