Hi,
when using substitution groups and the extension option, it seems to happen
that the marshaller hangs.
I filed a bug some time ago, but I did not get an answer so far.
Since I get this problem quite often and with different schemas,
I am wondering now whether it is really a bug or whether I do something
wrong.
Could somebody check whether he/she also has this problem?
A attached my bugreport below.
Thanks,
Petra
-------- Original Message --------
Subject: Your Report: xsd using substitution groups causes marshaller to
hang
Date: Tue, 24 Jun 2003 21:44:34 -0600 (MDT)
From: IncidentDaemon_at_sun.com <IncidentDaemon_at_sun.com>
To: petra_at_cs.waikato.ac.nz
************************************************
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------------------------------------------------------
dateCreated: Tue Jun 24 21:44:32 MDT 2003
type: bug
cust_name: Petra Malik
cust_email: petra_at_cs.waikato.ac.nz
jdcid:
status: Waiting
category: jaxb-xsd
subcategory: runtime
company: University of Waikato
release: fcs1.0
hardware: x86
OSversion: Linux
priority: 4
synopsis: xsd using substitution groups causes marshaller to hang
description: FULL PRODUCT VERSION :
java version "1.4.1_02"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_02-b06)
Java HotSpot(TM) Client VM (build 1.4.1_02-b06, mixed mode)
FULL OS VERSION :
Linux i686 (Slackware 8.0.0)
A DESCRIPTION OF THE PROBLEM :
Jaxb doesn't stop marshalling.
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
xjc.sh -extension test.xsd -p jaxb
Compile (see Test.java below) and Run
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Marshalles the given XML file to output.
ACTUAL -
Marshall:
(doesn't stop)
ERROR MESSAGES/STACK TRACES THAT OCCUR :
none, just hangs
REPRODUCIBILITY :
This bug can be reproduced always.
---------- BEGIN SOURCE ----------
Schema file test.xsd:
----------------------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="
http://www.w3.org/2001/XMLSchema" xmlns:Z="
http://www.cs.waikato.ac.nz" targetNamespace="
http://www.cs.waikato.ac.nz" elementFormDefault="qualified" attributeFormDefault="unqualified" version="1.0">
<xs:element name="Spec">
<xs:complexType>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element name="SchText" type="Z:SchText"/>
</xs:choice>
</xs:complexType>
</xs:element>
<xs:element name="Decl" type="Z:DeclType" abstract="true"/>
<xs:element type="Z:VarDeclType" name="VarDecl" substitutionGroup="Z:Decl"/>
<xs:element name="Expr" type="Z:ExprType" abstract="true"/>
<xs:element type="Z:RefExprType" name="RefExpr" substitutionGroup="Z:Expr"/>
<xs:complexType name="SchText">
<xs:sequence>
<xs:element ref="Z:Decl" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="DeclType"/>
<xs:complexType name="RefName">
</xs:complexType>
<xs:complexType name="ExprType"/>
<xs:complexType name="VarDeclType">
<xs:complexContent>
<xs:extension base="Z:DeclType">
<xs:sequence>
<xs:element ref="Z:Expr"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<xs:complexType name="RefExprType">
<xs:complexContent>
<xs:extension base="Z:ExprType">
<xs:sequence>
<xs:element ref="Z:Expr" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
</xs:schema>
---------------------------------------------------------------------------
XML file test.xml:
----------------------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<!-- edited with XMLSPY v5 rel. 3 U (
http://www.xmlspy.com) by Mark Utting (The University of Waikato) -->
<Spec xmlns="
http://www.cs.waikato.ac.nz">
<SchText>
<VarDecl>
<RefExpr/>
</VarDecl>
</SchText>
</Spec>
------------------------------------------------------------------------------
Test.java:
import java.io.FileInputStream;
import java.io.IOException;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Unmarshaller;
import javax.xml.bind.Marshaller;
import jaxb.*;
public class Test {
public static void main( String[] args ) {
try {
// create a JAXBContext capable of handling classes generated
JAXBContext jaxcontext = JAXBContext.newInstance("jaxb");
// create an Unmarshaller
Unmarshaller unmarshaller = jaxcontext.createUnmarshaller();
// unmarshal
Object o = unmarshaller.unmarshal(new FileInputStream("test.xml"));
System.out.println("Marshall:");
Marshaller m = jaxcontext.createMarshaller();
m.setProperty( Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE );
m.marshal( o, System.out );
} catch( Exception e ) {
e.printStackTrace();
}
}
}
---------- END SOURCE ----------
workaround:
comments: (company - University of Waikato , email - petra_at_cs.waikato.ac.nz)