Hello, Alessandro! Hello, colleagues!
I checked sources and saw that data[] in
org.xml.sax.helpers.AttributesImpl.getIndex(AttributesImpl.java:203) can not be
null because thre is no NPE in Exporter, be but it is
null anyway.
Then I checked namespaces of ssession before doing export with SAX handler and
found strange thing: there is namespace with empty prefix and empy uri!
My namesapce and Jackrabbit's namespaces are presend and OK, but this "empty"
namespace is one candidate for NPE. It does not affect export procedure that
uses streams but I
think does affect export procedure using SAX handler.
Below is output of this piece of code:
String[] nsp = session.getNamespacePrefixes();
for (String ns : nsp) {
Logger.getLogger(AbstractTypeResolver.class.getName()).log(Level.FINE,
"namespace: " + ns + " uri: " + ses.getNamespaceURI(ns));
}
----------- output ----------------
18 лист 2008 12:29:27 ua.org.dg.semaril.helpers.AbstractTypeResolver
logNamespaces
FINE: namespace: jcr uri: http://www.jcp.org/jcr/1.0
18 лист 2008 12:29:27 ua.org.dg.semaril.helpers.AbstractTypeResolver
logNamespaces
FINE: namespace: uri: <<<<<<<<<<<<<<<<<<<<<<<<< THIS NAMESPACE IS VERY
STRANGE!!!<<<<<<
18 лист 2008 12:29:27 ua.org.dg.semaril.helpers.AbstractTypeResolver
logNamespaces
FINE: namespace: nt uri: http://www.jcp.org/jcr/nt/1.0
18 лист 2008 12:29:27 ua.org.dg.semaril.helpers.AbstractTypeResolver
logNamespaces
FINE: namespace: pib uri: http://www.e-ukraine.org/datatypes/pib
18 лист 2008 12:29:27 ua.org.dg.semaril.helpers.AbstractTypeResolver
logNamespaces
FINE: namespace: sv uri: http://www.jcp.org/jcr/sv/1.0
18 лист 2008 12:29:27 ua.org.dg.semaril.helpers.AbstractTypeResolver
logNamespaces
FINE: namespace: xs uri: http://www.w3.org/2001/XMLSchema
18 лист 2008 12:29:27 ua.org.dg.semaril.helpers.AbstractTypeResolver
logNamespaces
FINE: namespace: ocm uri: http://jackrabbit.apache.org/ocm
18 лист 2008 12:29:27 ua.org.dg.semaril.helpers.AbstractTypeResolver
logNamespaces
FINE: namespace: xml uri: http://www.w3.org/XML/1998/namespace
18 лист 2008 12:29:27 ua.org.dg.semaril.helpers.AbstractTypeResolver
logNamespaces
FINE: namespace: fn_old uri: http://www.w3.org/2004/10/xpath-functions
18 лист 2008 12:29:27 ua.org.dg.semaril.helpers.AbstractTypeResolver
logNamespaces
FINE: namespace: fn uri: http://www.w3.org/2005/xpath-functions
18 лист 2008 12:29:27 ua.org.dg.semaril.helpers.AbstractTypeResolver
logNamespaces
FINE: namespace: mix uri: http://www.jcp.org/jcr/mix/1.0
18 лист 2008 12:29:27 ua.org.dg.semaril.helpers.AbstractTypeResolver
logNamespaces
FINE: namespace: rep uri: internal
----------------------
I do not have any idea where this empty namespace comes from... I am sure I do
not register it because it exists before I register my namespace or OCM
namespace.
It does exist in empty just inited repository.
Jukka, if you are reding this, please point me to source where namespaces get
registered in Jackrabbit. Sope piece of code registers namespace with empty
name and empty uri.
On Monday 17 November 2008 17:30:58 Alessandro Bologna wrote:
> Hi Alex,
> it's a bit of a shot in the dark, but looking at the code here
> http://svn.apache.org/repos/asf/jackrabbit/trunk/jackrabbit-jcr-commons/src
>/main/java/org/apache/jackrabbit/commons/xml/Exporter.java and here:
> http://www.docjar.com/html/api/org/xml/sax/helpers/AttributesImpl.java.html
> I feel inclined to think that the problem is caused by your attributes to
> be in no namespace. Would it be complicated (just to test) for you to try
> to see what happens if you set all your attributes (archiveDAte, creator
> etc) in some namespace (for instance, pib)?
>
> Alessandro
--
SY, Alex Lukin
RIPE NIC HDL: LEXA1-RIPE
