a4j Error parsing XML

[Dave-53]

I am using ajax4jsf in my web app that is running on JBoss 4.0.5 with myfaces. I remember It was working before, but it is not working now. I could not figure out what is wrong. I turned on a4j log: 

At the end of the a4j response,

 

error[1:48:13,264]: Error parsing XML
error[1:48:13,264]: Parse Error: Document is empty

 

But I tried it on JBoss 4.2.2 with jsf ri,  and it worked without the error.

Could anyone give me a clue what is the issue?

 

Thanks,
Dave

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