Generating and compiling jaxb 1.0 source with jaxb 2.0 binaries

Hi
Does anyone know if v 2.13 is backwards compatible in terms of generating the source files for version 1 and also compiling and deploying the code?
I am developing a project that needs to use jaxb 1.0 and jaxb 2.0 for legacy reasons. I have downloaded 2.1.3 an managed to use xjc to generate the new code (2.1) but when I try and generate the 1.0 classes I get this error
Couldn't load Resource 1.0/com/sun/xml/bind/JAXBAssertionError.class
java.lang.NoClassDefFoundError: com/sun/xml/bind/JAXBAssertionError
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1225)
at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultEx
cutor.java:40)
at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
at org.apache.tools.ant.Main.runBuild(Main.java:668)
at org.apache.tools.ant.Main.startAnt(Main.java:187)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:246)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:67)
Caused by: java.lang.NoClassDefFoundError: com/sun/xml/bind/JAXBAssertionError
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:164)
at com.sun.tools.xjc.Options.class$(Options.java:154)
at com.sun.tools.xjc.Options.findServices(Options.java:482)
at com.sun.tools.xjc.Options.<clinit>(Options.java:154)
at com.sun.tools.xjc.XJCTask.<init>(XJCTask.java:49)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstruc
orAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Delegating
onstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
at java.lang.Class.newInstance0(Class.java:350)
at java.lang.Class.newInstance(Class.java:303)
at com.sun.istack.tools.ProtectedTask.execute(ProtectedTask.java:49)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
at org.apache.tools.ant.Task.perform(Task.java:364)
at org.apache.tools.ant.Target.execute(Target.java:341)
at org.apache.tools.ant.Target.performTasks(Target.java:369)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
And this is the ant build file
<?xml version="1.0" encoding="windows-1252"?>
<project name="jaxb" default="compile" basedir=".">
<path id="classpath">
<pathelement location="activation.jar"/>
<pathelement location="jaxb-api.jar"/>
<pathelement location="jaxb-impl.jar"/>
<pathelement location="jaxb1-impl.jar"/>
<pathelement location="jaxb-xjc.jar"/>
<pathelement location="jsr173_1.0_api.jar"/>
</path>
<taskdef name="xjc" classname="com.sun.tools.xjc.XJCTask">
<classpath refid="classpath"/>
</taskdef>
<target name="compile">
<xjc schema="import.xsd" destdir="generated"
package=".jaxb.importxsd" source="1.0" target="1.0" />
</target>
</project>
I have checked the classpath and there is nothing untoward there and
all the jars are in the same folder as the ant file. I thought jaxb
2.1 is meant to be backwards compatible?
Many thanks for your help.
With the version of the JAXB binaries installed with the web services pack I get this error message instead
Class com.sun.tools.xjc.XJCTask$AntElement loaded from ant loader (parentFirst)
ResourceStream for 1.0/com/sun/tools/xjc/XJCTask$AngProgressCodeWriter.class loaded from ant loader
BUILD FAILED
java.lang.IncompatibleClassChangeError: Implementing class
It seems to want to load the 1.0/com...version of xjc but has loaded the 2.0 version already.

Hi,
Can you please check your classpath incase there are still jaxb-ea jars in it.
We have had such problems reported to us because of this reason.
If the problem still persists can you pls provide more information like the stack trace the schema files etc.
Thanks,
Bhakti Mehta
Sun Microsystems Inc.

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