Errors generating Java classes from XML schema

I received the following errors when generating Java classes from the schema located at: http://imsproject.org/xsd/ims_qti_rootv1p1.xsd and http://imsproject.org/xsd/ims_xml.xsd
XML Spy v4 claims that the schema is well-formed and valid. Could this be a problem with the class generators, or is XML Spy not telling the truth?
Thanks.
D:\IMS_QTI\Java>java -classpath .;lib/xmlparserv2.jar;lib/xschema.jar;lib/classgen.jar oracle.xml.classgen.oracg -schema ims_qti_rootv1p1.xs
d -outputDir src\com\icld\qti -package com.icld.qti -comment
file:/D:/IMS_QTI/Java/ims_qti_rootv1p1.xsd<Line 235, Column 21>: XSD-2209: (Error) Duplicated definition for: 'attr.view'
file:/D:/IMS_QTI/Java/ims_qti_rootv1p1.xsd<Line 303, Column 21>: XSD-2209: (Error) Duplicated definition for: 'grp.labels'
file:/D:/IMS_QTI/Java/ims_qti_rootv1p1.xsd<Line 1834, Column -12236>: XSD-2209: (Error) Duplicated definition for: 'qtimetadatafield'
file:/D:/IMS_QTI/Java/ims_qti_rootv1p1.xsd<Line 1834, Column -9642>: XSD-2209: (Error) Duplicated definition for: 'typeofsolutionType'
file:/D:/IMS_QTI/Java/ims_qti_rootv1p1.xsd<Line 2252, Column -3019>: XSD-2026: (Error) Invalid attribute 'use' in element 'attribute'
Error: Schema Class Generator failed to generate classes. oracle.xml.parser.schema.XSDException: Duplicated definition for: 'attr.view'

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Jinyu Wang ([email protected]):
Which version are you using? I can't reproduce the error with 9.0.2B version.<HR></BLOCKQUOTE>
Thanks for having a look at the problem. I am using the 9.0.2.0B version with Java 2 Standard Edition Build 1.3.1-b24. The classgen -version option returns 9.0.2.0b-beta - and xmlparserv2.jar and xschema.jar are from the same distribution. Running the corresponding DTD from the same source work fine - I'm just havinf this problem with the XSD. Anything else I should look at?

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About generating Java classes from XSD Schema ???

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You can also use Castor: http://www.castor.org
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Crosspost.
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Thankz in advance...

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For SOAP webservice, I am using ant script to generate java client from WSDL but getting below error. Please inform if any suggestion to resolve this.
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===========
<project name="project" default="generateClientJar">
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===========
base=C:/SMS
lib=E:/jar_path
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ws.sms.name=${lib}/ws_SmsService_client.jar
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================
Buildfile: D:\Java_Src_10.1.0\ant\build_weblogic8.xml
generate.client:
generateClientJar:
[clientgen] Generating client jar for C:/SMS/SMS.wsdl ...
[clientgen] C:\Documents and Settings\amitkumar.patel\Local Settings\Temp\ws_SmsService_client.jar699419996\com\db\dbdi\gtbportal\sms\client\SMSPort.java:15: parameters is already defined in sendSMS(com.db.portal.webservices.sms.SendSMS,com.db.portal.webservices.sms.holders.SendSMSResponseHolder)
[clientgen] public void sendSMS(com.db.portal.webservices.sms.SendSMS parameters, com.db.portal.webservices.sms.holders.SendSMSResponseHolder parameters)
[clientgen] ^
[clientgen] C:\Documents and Settings\amitkumar.patel\Local Settings\Temp\ws_SmsService_client.jar699419996\com\db\dbdi\gtbportal\sms\client\SMSPort.java:21: parameters is already defined in getStatus(com.db.portal.webservices.sms.GetStatus,com.db.portal.webservices.sms.holders.GetStatusResponseHolder)
[clientgen] public void getStatus(com.db.portal.webservices.sms.GetStatus parameters, com.db.portal.webservices.sms.holders.GetStatusResponseHolder parameters)
[clientgen] ^
[clientgen] C:\Documents and Settings\amitkumar.patel\Local Settings\Temp\ws_SmsService_client.jar699419996\com\db\dbdi\gtbportal\sms\client\SMSPort_Stub.java:20: parameters is already defined in sendSMS(com.db.portal.webservices.sms.SendSMS,com.db.portal.webservices.sms.holders.SendSMSResponseHolder)
[clientgen] public void sendSMS(com.db.portal.webservices.sms.SendSMS parameters, com.db.portal.webservices.sms.holders.SendSMSResponseHolder parameters)
[clientgen] ^
[clientgen] C:\Documents and Settings\amitkumar.patel\Local Settings\Temp\ws_SmsService_client.jar699419996\com\db\dbdi\gtbportal\sms\client\SMSPort_Stub.java:39: parameters is already defined in getStatus(com.db.portal.webservices.sms.GetStatus,com.db.portal.webservices.sms.holders.GetStatusResponseHolder)
[clientgen] public void getStatus(com.db.portal.webservices.sms.GetStatus parameters, com.db.portal.webservices.sms.holders.GetStatusResponseHolder parameters)
[clientgen] ^
[clientgen] Note: C:\Documents and Settings\amitkumar.patel\Local Settings\Temp\ws_SmsService_client.jar699419996\com\db\dbdi\gtbportal\sms\client\SMSService.java uses or overrides a deprecated API.
[clientgen] Note: Recompile with -deprecation for details.
[clientgen] 4 errors
*[*clientgen] java.io.IOException: Compiler failed executable.exec**
[clientgen] at weblogic.utils.compiler.CompilerInvoker.compileMaybeExit(CompilerInvoker.java:470)
[clientgen] at weblogic.utils.compiler.CompilerInvoker.compile(CompilerInvoker.java:328)
[clientgen] at weblogic.utils.compiler.CompilerInvoker.compile(CompilerInvoker.java:336)
[clientgen] at weblogic.webservice.tools.build.internal.CompilerHelper.compileFiles(CompilerHelper.java:80)
[clientgen] at weblogic.webservice.tools.build.internal.ClientGenImpl.compileStubs(ClientGenImpl.java:627)
[clientgen] at weblogic.webservice.tools.build.internal.ClientGenImpl.generateStub(ClientGenImpl.java:572)
[clientgen] at weblogic.webservice.tools.build.internal.ClientGenImpl.doClientGenFromWsdl(ClientGenImpl.java:409)
[clientgen] at weblogic.webservice.tools.build.internal.ClientGenImpl.run(ClientGenImpl.java:340)
[clientgen] at weblogic.ant.taskdefs.webservices.clientgen.ClientGenTask.doClientGen(ClientGenTask.java:351)
[clientgen] at weblogic.ant.taskdefs.webservices.clientgen.ClientGenTask.execute(ClientGenTask.java:208)
[clientgen] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
[clientgen] at org.apache.tools.ant.Task.perform(Task.java:364)
[clientgen] at org.apache.tools.ant.Target.execute(Target.java:341)
[clientgen] at org.apache.tools.ant.Target.performTasks(Target.java:369)
[clientgen] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
[clientgen] at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
[clientgen] at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
[clientgen] at org.eclipse.ant.internal.ui.antsupport.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
[clientgen] at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
[clientgen] at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.run(InternalAntRunner.java:423)
[clientgen] at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.main(InternalAntRunner.java:137)
BUILD FAILED
D:\Java_Src_10.1.0\ant\build_weblogic8.xml:34: weblogic.webservice.tools.build.WSBuildException: Compiler failed executable.exec - with nested exception:
[java.io.IOException: Compiler failed executable.exec]
Total time: 1 minute 12 seconds

Hi,
Can u Please post the WSDL..here. I remember long back i resolved this kind of issue...when i was getting "*parameters is already defined in - - -*" while using ClientGen.
Once i will get the WSDL may be i can recall it...
If u have any problem in Posting the WSDL..in Forums .. then let me know I will send my E-Mail Address...
As far as i remember ..it usually happens when we Run ClientGen task of WLS81 ON the WebService/WSDL generated by WebLogic 9.x or Above. Please let me know if this is the Case with you as well... . I remember there is a Patch for it...for WLS8 ClientGen task...I dont remember the Patch Number Exactly.
Just For testing:
Just Use WLS9.x ClientGen task On the Same WSDL
<taskdef name="clientgen" classname="weblogic.wsee.tools.anttasks.ClientGenTask" />
I am sure you will not see this issue... because the issue is there only with WLS8 Clientgen...
Thanks
Jay SenSharma
http://jaysensharma.wordpress.com (WebLogic Wonders Are Here)
Edited by: Jay SenSharma on Jan 8, 2010 4:32 PM
Edited by: Jay SenSharma on Jan 8, 2010 4:34 PM

Hi I need this asap... "Java code to generate XML File from XML Schema"

Hi all....
I need this asap... "Java code to generate XML File from XML Schema i.e XML Schema Definition, XSD file".
Thankz in advance...
PS: I already posted in the afternoon... this is the second posting.

take look at :
http://sourceforge.net/projects/jaxme/
this might help...

Errors generating Java classes from XML schema

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