can't create java objects from schemas using xjc

[sanat]

hi,

i'm new to web services, i was just trying to generate java classes from my schemas, using xjc ant task. but it always complains.

schema
------

<xs:schema xmlns="urn:example.com/test"
xmlns:impl="urn:example.com/test"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:jxb="http://java.sun.com/xml/ns/jaxb"
xmlns:xjc="http://java.sun.com/xml/ns/jaxb/xjc"
targetNamespace="urn:example.com/test"
elementFormDefault="qualified" jxb:extensionBindingPrefixes="xjc"
jxb:version="1.0">
 
<xs:element name="addRequest" type="addRequest" />
 
<xs:complexType name="addRequest">
<xs:sequence>
<xs:element name="n1" type="xs:int"></xs:element>
<xs:element name="n2" type="xs:int"></xs:element>
</xs:sequence>
</xs:complexType>
</xs:schema>

ant task
--------

<xjc schema="add.xsd" target="src" extension="true">
    <arg value="-nv" />
</xjc>

error
-----

Buildfile: C:\workspace\Test\build.xml
compile:
      [xjc] Compiling file:/C:/workspace/Test/add.xsd
      [xjc] [ERROR] A class/interface with the same name "com.example.test.AddRequest" is already in use.
      [xjc] line 10 of add.xsd
      [xjc] [ERROR] (Relevant to above error) another one is generated from here.
      [xjc] line 12 of add.xsd
BUILD FAILED: C:\workspace\Test\build.xml:20: unable to parse the schema. Error messages should have been provided
Total time: 5 seconds

i have really no idea what's wrong here. any help would be appreciated. thanks in advance.

-sanat

[Paulo Salgado]

Hi Sanat.

It looks like you have a conflict between the element name and the type name. JAXB will generate interfaces and classes for both, so they can't have the same name. Try renaming either one of them. For instance, rename the element on your XML Schema like this:

<xs:schema xmlns="urn:example.com/test"
xmlns:impl="urn:example.com/test"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:jxb="http://java.sun.com/xml/ns/jaxb"
xmlns:xjc="http://java.sun.com/xml/ns/jaxb/xjc"
targetNamespace="urn:example.com/test"
elementFormDefault="qualified" jxb:extensionBindingPrefixes="xjc"
jxb:version="1.0">
 
<xs:element name="[B]addRequestElement[/B]" type="addRequest" />
 
<xs:complexType name="addRequest">
<xs:sequence>
<xs:element name="n1" type="xs:int"></xs:element>
<xs:element name="n2" type="xs:int"></xs:element>
</xs:sequence>
</xs:complexType>
</xs:schema>

Regards.