Trying to serialize non-xml 1.0 character

[Yi-Wen Liu]

Hello,

I came across the following error when running DUCC, and I thought it was
caused by invalid xml character in my input text file
But if I removed all files in input directory, same error again.

Any suggestion is appreciated!

16 Nov 2015 22:03:45,443 ERROR ProxyLogger - T[18] loggify
org.xml.sax.SAXParseException; Trying to serialize non-XML 1.0
character: , 0x0
        at 
org.apache.uima.util.XMLSerializer$CharacterValidatingContentHandler.checkForInvalidXmlChars(XMLSerializer.java:254)
        at 
org.apache.uima.util.XMLSerializer$CharacterValidatingContentHandler.startElement(XMLSerializer.java:174)
        at 
org.apache.uima.cas.impl.XmiCasSerializer$XmiCasDocSerializer.startElement(XmiCasSerializer.java:1003)
        at 
org.apache.uima.cas.impl.XmiCasSerializer$XmiCasDocSerializer.encodeFS(XmiCasSerializer.java:755)
        at 
org.apache.uima.cas.impl.XmiCasSerializer$XmiCasDocSerializer.encodeIndexed(XmiCasSerializer.java:700)
        at 
org.apache.uima.cas.impl.XmiCasSerializer$XmiCasDocSerializer.serialize(XmiCasSerializer.java:268)
        at 
org.apache.uima.cas.impl.XmiCasSerializer$XmiCasDocSerializer.access$700(XmiCasSerializer.java:108)

Thanks,
Yi-Wen