Now I haven't exception anymore.
But when I try to validate the QName "xsd:string", the API says the value is incorrect :
UndeclaredPrefix: Cannot resolve 'xsd:string' as a QName: the prefix 'xsd' is not declared.
Here is my Schema :
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"; xmlns:n0="http://www.w3.org/XML/1998/namespace";>
<xsd:annotation>
<xsd:documentation xml:lang="fr">
Schema XML d'une activite Symba.
</xsd:documentation>
</xsd:annotation> <xsd:element name="Activite" type="typeActivite"/>
<xsd:complexType name="typeActivite">
<xsd:sequence>
<xsd:element name="nom" type="xsd:string"/>
<xsd:element name="etape" type="typeetape" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="typeetape">
<xsd:sequence>
<xsd:element name="nom" type="xsd:string"/>
<xsd:element name="plan" type="typeplan"/>
<xsd:element name="prec-ref" type="xsd:IDREF" minOccurs="0"/>
<xsd:element name="suiv-ref" type="xsd:IDREF" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="identifier" type="xsd:ID" use="required"/>
</xsd:complexType>
<xsd:complexType name="typeplan">
<xsd:sequence>
<xsd:element name="tache" type="typetache" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="typetache">
<xsd:sequence>
<xsd:element name="titre" type="xsd:string"/>
<xsd:element name="acteur" type="xsd:string"/>
<xsd:element name="entrees" type="xsd:string"/>
<xsd:element name="sorties" type="xsd:string"/>
<xsd:element name="dates" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:schema>
Have you an idea about this error? Is it normal?
Michael Glavassevich (JIRA) a �crit :
[ http://issues.apache.org/jira/browse/XERCESJ-1057?page=history ]
Michael Glavassevich resolved XERCESJ-1057:
-------------------------------------------
Resolution: Duplicate
Duplicate of XERCESJ-1059.
NullPointerException with class QNameDV method getActualValue -------------------------------------------------------------
Key: XERCESJ-1057
URL: http://issues.apache.org/jira/browse/XERCESJ-1057
Project: Xerces2-J
Type: Bug
Components: XML Schema API
Versions: 2.6.2
Environment: Windows XP SP2 JRE 1.4.2_06-b03
Reporter: vaseux mickael
Sorry for my english I'm french user of Xerces ...
Consequence : get a nullPointerException in Xample when using XMLSchema.xsd and set "type" attribute of an element with a prefix (example : "xs:string")
Here is the Exception :
java.lang.NullPointerException
at org.apache.xerces.impl.dv.xs.QNameDV.getActualValue(QNameDV.java:105)
at org.apache.xerces.impl.dv.xs.XSSimpleTypeDecl.getActualValue(Unknown Source)
at org.apache.xerces.impl.dv.xs.XSSimpleTypeDecl.validate(Unknown Source)
at com.fg.xmleditor.XSRef.validate(XSRef.java:119)
at com.fg.xmleditor.Validator.isValid(Validator.java:122)
Here is the code of the method :
public Object getActualValue(String content, ValidationContext context)
throws InvalidDatatypeValueException {
// "prefix:localpart" or "localpart"
// get prefix and local part out of content
String prefix, localpart;
int colonptr = content.indexOf(":");
if (colonptr > 0) {
prefix = context.getSymbol(content.substring(0,colonptr));
localpart = content.substring(colonptr+1);
} else {
prefix = EMPTY_STRING;
localpart = content;
}
// both prefix (if any) a nd localpart must be valid NCName
if (*prefix.length() > 0* && !XMLChar.isValidNCName(prefix))
throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object[]{content, "QName"});
if(!XMLChar.isValidNCName(localpart))
throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object[]{content, "QName"});
// resove prefix to a uri, report an error if failed
String uri = context.getURI(prefix);
if (prefix.length() > 0 && uri == null)
throw new InvalidDatatypeValueException("UndeclaredPrefix", new Object[]{content, prefix});
return new XQName(prefix, context.getSymbol(localpart), context.getSymbol(content), uri);
} In fact, the function : context.getSymbol(content.substring(0,colonptr)) return the null value, and there's no test to see if the value returned is null or not.
There's is some tests, after, in order to see if prefix.length() is > 0 or not, that's show that the developper thinked that getSymbol return ALWAYS a String, which is empty if the symbol hasn't be found. In relity, yhe context can be return a null value in case of Dummy Context or Empty Context (see XSSimpleTypeDecl.class)
Solution : if the function return null, the prefix String must be set with EMPTY_STRING
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