WriteDomain() UnsatisfiedLinkError in 10.3.1 on WinXP

Question

This code runs on wls 10.3. It fails on 10.3.1.
AND only when this code is executed via the ant task.
This code runs successfully if manually typed-in in WLST.
The error is indicating a native-language def for the method
is not being found. What steps must I take to resolve this?
Here is the script I use to run the task, the code and the ERROR:
@echo off
call "C:\wls\wlserver_10.3\server\bin\setWLSEnv.cmd"
call "C:\wls\modules\org.apache.ant_1.7.0\bin\ant" -f build.xml -emacs testIt
<taskdef name="wlst" classname="weblogic.ant.taskdefs.management.WLSTTask"
classpath="${env.WL_HOME}/server/lib/weblogic.jar"/>
<wlst>
<script>
templ='C:\\wls\\wlserver_10.3\\common\\templates\\domains\\wls.jar'
readTemplate(templ)
cd('/Security/base_domain/User/weblogic')
set('Password','1weblogic')
setOption('JavaHome', 'C:\\wlsjdk160_11')
print 'WRITING data'
writeDomain('C:\\wls\\user_projects\\domains\\mepA')
print 'CLOSE IT'
closeTemplate()
</script>
</wlst>
WRITING data
Exception in thread "Thread-3" java.lang.UnsatisfiedLinkError: com.bea.plateng.common.jni.JNIUtil.getEnvVariable(Ljava/lang/String;)Ljava/lang/String;
at com.bea.plateng.common.jni.JNIUtil.getEnvVariable(Native Method)
at com.bea.plateng.domain.StartMenu.create(StartMenu.java:82)
at com.bea.plateng.domain.StartMenu.create(StartMenu.java:64)
at com.bea.plateng.domain.DomainGenerator.generate(DomainGenerator.java:486)
at com.bea.plateng.domain.script.ScriptExecutor$2.run(ScriptExecutor.java:2936)

Answer 1

With further testing this is definitely a bug with writeDomain, wls-10.3.1's wlst anttask and ant 1.7.0.
because this all works in wls-10.3 and ant 1.6.5.
I move the script code into a python file. I created the cmd script, wlst.cmd.
@echo off
SETLOCAL
call "%WL_HOME%\server\bin\setWLSEnv.cmd"
java weblogic.WLST %*
ENDLOCAL
I ran it from the cmd shell with the file and it ran successfully.
wlst.cmd test.py
In my build.xml file I created an exec task that executed the cmd above and
it ran successfully as well.
<exec dir="${basedir}" executable="cmd">
<arg line="/c wlst.cmd test.py"/>
</exec>
In my build.xml file I created a wlst task to process the file. It fails with the UnsatisfiedLinkError as did the embedded script code.
<wlst fileName="${basedir}/test.py"/>