[jxpath][PATCH] namespaced DOM attributes bug

[Ulrich Nicolas Liss�]

hi folks,

while playing around with the schmematron validation used for xmlforms
in cocoon 2.1 i had to face some strange misbehaviour with namespaced
DOM attributes. downtracking led me to a bug in JXPath's
DOMAttributeIterator: if you have an element with any qualified
attributes and if you specify a non-existent namespaced attribute
expression, JXPath will not return null() but one of the existing
attributes.

i've attached both a simple example illustrating the bug and the
patch. the misbehaviour occurs because the 'getAttribute' method will
return the last negatively tested attribute instead of [null].

i don't know if the jdom-adapter is affected too.

uli
-- 
Ulrich Nicolas Liss�
Index: 
E:/projects/jakarta-commons/jxpath/src/java/org/apache/commons/jxpath/ri/model/dom/DOMAttributeIterator.java

===================================================================
RCS file: 
/home/cvspublic/jakarta-commons/jxpath/src/java/org/apache/commons/jxpath/ri/model/dom/DOMAttributeIterator.java,v

retrieving revision 1.6
diff -u -r1.6 DOMAttributeIterator.java
--- 
E:/projects/jakarta-commons/jxpath/src/java/org/apache/commons/jxpath/ri/model/dom/DOMAttributeIterator.java
        10 Aug 2002 16:13:04 -0000      1.6
+++ 
+E:/projects/jakarta-commons/jxpath/src/java/org/apache/commons/jxpath/ri/model/dom/DOMAttributeIterator.java
+        30 Nov 2002 16:57:09 -0000
@@ -175,6 +175,8 @@
                         return attr;
                     }
                 }
+                // nothing found !
+                attr = null;
             }
             return attr;
         }

NamespacedDOMAttributesBug.java
Description: Binary data

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