When invoking "Validate XML" command from the
context menu during XML schema development it
fails with this text:
Checking file:/C:/Documents and
cvc-datatype-valid.1.2.1: 'file:/C:/Documents and
is not a valid 'anyURI' value. 
XML validation finished.
In the IDE log there is this stack trace:
Annotation: SAXEntityParser: filtering out:
Annotation: Parse error in file file:/C:/Documents
line 1 column 182 (PUBLIC -//NetBeans//Fake Public
org.xml.sax.SAXParseException: cvc-elt.1: Cannot
find the declaration of element 'schemaWrapper'
If the Catalog.xsd file is moved into directory
like "C:\temp" then the validation succeeds, so I
consider the empty spaces in 'Documents and
Settings' to suspected.
The failing XML Schema is attached. This problem
did not appear with Netbeans 3.4.1.
Created attachment 9968 [details]
Failing XML schema
It's related to the space in path. Once placed into spaceless named directory all works
for me. I guess it could be duplicate of issue 32594.
The exception in log appears only in development version. It's harmless.
Duplicating with more generic higher priority issue.
*** This issue has been marked as a duplicate of 32594 ***
I am reopening the issue, because issue 32594 was originaly reported
for DTD files. The problem with DTD files has already been fixed but
this issue remains.
It's a Xerces bug.
See : <http://nagoya.apache.org/bugzilla/show_bug.cgi?id=18803>
Verified - fixed long time ago
NetBeans.org Migration: changing resolution from LATER to WONTFIX