LinkageError when running TorqueSQLTask

[Justin Lawler]

I am execuring the ant task "TorqueSQLTask" through a program, ie im setting up all 
the necessary properties and then calling the "execute" method. and I get a 
LinkageError:

     [java] java.lang.LinkageError: loader constraints violated when linking 
org/xml/sax/XMLReader class
     [java]  at 
org.apache.xerces.jaxp.SAXParserFactoryImpl.newSAXParser(SAXParserFactoryImpl.java:95)
     [java]  at 
org.apache.torque.engine.database.transform.XmlToAppData.parseFile(XmlToAppData.java:160)
     [java]  at 
org.apache.torque.task.TorqueDataModelTask.initControlContext(TorqueDataModelTask.java:225)
     [java]  at 
org.apache.torque.task.TorqueSQLTask.initControlContext(TorqueSQLTask.java:226)
     [java]  at org.apache.velocity.texen.ant.TexenTask.execute(TexenTask.java:480)
     [java]  at com.work.torque.TableObjGen.createSQLFile(TableObjGen.java:196)
     [java]  at com.work.torque.TableObjGen.main(TableObjGen.java:321)
     [java]  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     [java]  at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     [java]  at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     [java]  at java.lang.reflect.Method.invoke(Method.java:324)
     [java]  at org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:124)
     [java]  at org.apache.tools.ant.taskdefs.Java.run(Java.java:305)
     [java]  at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:127)
     [java]  at org.apache.tools.ant.taskdefs.Java.execute(Java.java:88)
     [java]  at org.apache.tools.ant.Task.perform(Task.java:217)
     [java]  at org.apache.tools.ant.Target.execute(Target.java:184)
     [java]  at org.apache.tools.ant.Target.performTasks(Target.java:202)
     [java]  at org.apache.tools.ant.Project.executeTarget(Project.java:601)
     [java]  at org.apache.tools.ant.Project.executeTargets(Project.java:560)
     [java]  at org.apache.tools.ant.Main.runBuild(Main.java:454)
     [java]  at org.apache.tools.ant.Main.start(Main.java:153)
     [java]  at org.apache.tools.ant.Main.main(Main.java:176)


I'm running the Torque and tdk versions "020302", with all the jars that came with the 
tdk. I was having a look in the tdk jars and there seems to be a few jars with the 
XMLReader in them, eg. XMLParserAPIs, xalan-2.1.0, dom4j-1.1. Could this be part of 
the problem?

Also, there seems to be no problem when running this task straight from ant.

thanks,
Justin