Got the Generator working with WebSphere MQ JMS provider

The problem was due to some missing JARs in CLASSPATH. Still have not figured out which specific JAR. in start_generator.bat, included all the MQ JARs in CLASSPATH like this
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set EXT_DIR="C:\Program Files\IBM\WebSphere MQ\Java\lib"
set command=%JAVA_HOME%\bin\java.exe -Djava.ext.dirs=%EXT_DIR% -cp %cpath% %class% %CONF_FILE%

%command%
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Now working on the Adapter part to get the demo going.

Thanks for your quick replies
Sharathbabu