Validation error: "cvc-elt.1: Cannot find the declaration of element..."

[Daniele Gagliardi]

Hi all!
  I've got a strange problem with validation. In my web application there is
a mechanism which buids XML, starting from pairs parameter-value. This XML
is then validates against a XSD file.
Old versions of this application seemed to function, instead now 'something
must be happened'. I've tried with different combination of Xerces-Xalan
(2.5.0-2.5.1, 2.5.0-2.4.1,2.2.1-2.4.1 with xml-apis.jar from Xalan2.4.1, and
so on...).
This is the built XML file:

<?xml version="1.0" encoding="UTF-8"?>
<accounting_log xmlns:xs="http://www.w3.org/2001/XMLSchema";>
<applicazione>
<applicazione_codice>Cicchetto</applicazione_codice>
</applicazione>
<tipo_evento>
<tipo_evento_codice>Bottiglia</tipo_evento_codice>
</tipo_evento>
<evento>
<evento_codice>Apertura</evento_codice>
<evento_data_ora>2003-11-12T15:00:16.00000</evento_data_ora>
</evento>
<richiedente>
<nome_ric>Dan</nome_ric>
<cognome_ric>Dany</cognome_ric>
<cf_ric>1234567890123456</cf_ric>
</richiedente>
<beneficiario>
<nome_ben/>
<cognome_ben>Dany</cognome_ben>
<cf_ben/>
<org_ben>Organization</org_ben>
<orgUnit_ben/>
</beneficiario>
</accounting_log>

and this the associated XSD:


<?xml version="1.0" encoding="UTF-8"?>
<!-- Edited with Notepad, by Daniele Gagliardi (Engiweb.com S.p.A.) -->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema";
elementFormDefault="qualified" attributeFormDefault="unqualified">

 <xs:element name="accounting_log">
     <xs:complexType>
         <xs:sequence>
             <xs:element ref="applicazione"/>
             <xs:element ref="tipo_evento"/>
             <xs:element ref="evento"/>
             <xs:element ref="richiedente"/>
             <xs:element ref="beneficiario"/>
         </xs:sequence>
      </xs:complexType>
 </xs:element>
 <xs:element name="applicazione">
     <xs:complexType>
  <xs:sequence>
      <xs:element ref="applicazione_codice"/>
  </xs:sequence>
     </xs:complexType>
 </xs:element>
        <xs:element name="applicazione_codice" type="xs:string"/>
 <xs:element name="tipo_evento">
     <xs:complexType>
  <xs:sequence>
      <xs:element ref="tipo_evento_codice"/>
  </xs:sequence>
     </xs:complexType>
 </xs:element>
        <xs:element name="tipo_evento_codice" type="xs:string"/>
 <xs:element name="evento">
     <xs:complexType>
  <xs:sequence>
      <xs:element ref="evento_codice"/>
      <xs:element ref="evento_data_ora"/>
  </xs:sequence>
     </xs:complexType>
 </xs:element>
        <xs:element name="evento_codice" type="xs:string"/>
 <xs:element name="evento_data_ora" type="xs:dateTime"/>
 <xs:element name="richiedente">
     <xs:complexType>
  <xs:sequence>
      <xs:element ref="nome_ric"/>
      <xs:element ref="cognome_ric"/>
      <xs:element ref="cf_ric"/>
  </xs:sequence>
     </xs:complexType>
 </xs:element>
 <xs:element name="beneficiario">
     <xs:complexType>
  <xs:sequence>
      <xs:element ref="nome_ben"  minOccurs="0"/>
      <xs:element ref="cognome_ben"/>
      <xs:element ref="cf_ben"/>
      <xs:element ref="org_ben"/>
      <xs:element ref="orgUnit_ben" minOccurs="0" maxOccurs="unbounded"/>
  </xs:sequence>
     </xs:complexType>
 </xs:element>
        <xs:element name="nome_ric" type="xs:string"/>
 <xs:element name="cognome_ric" type="xs:string"/>

        <xs:element name="cf_ric">
            <xs:simpleType>
         <xs:restriction base="xs:string">
             <xs:maxLength value="16"/>
         </xs:restriction>
     </xs:simpleType>
 </xs:element>
        <xs:element name="nome_ben" type="xs:string"/>
 <xs:element name="cognome_ben" type="xs:string"/>

        <xs:element name="cf_ben">
            <xs:simpleType>
         <xs:restriction base="xs:string">
             <xs:maxLength value="16"/>
         </xs:restriction>
     </xs:simpleType>
 </xs:element>
        <xs:element name="org_ben">
            <xs:simpleType>
         <xs:restriction base="xs:string">
             <xs:maxLength value="128"/>
         </xs:restriction>
     </xs:simpleType>
 </xs:element>
 <xs:element name="orgUnit_ben">
     <xs:simpleType>
         <xs:restriction base="xs:string">
             <xs:maxLength value="128"/>
         </xs:restriction>
     </xs:simpleType>
 </xs:element>
</xs:schema>

and the error message is:

org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of
element 'accounting_log'.
 at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
...

Element accounting_log is present, and I pass XSD file to Parser. What's
wrong? Last week with the combination Xerces 2.2.1/Xalan2.4.1 all did run
correctly. Today I re-started the application and nothing works...

-------------------------------------------
Daniele Gagliardi
Development
Engiweb.com
IT Security Business Unit
Tel. ++39 06 49201360
-------------------------------------------


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