In my HandlerBase I'm importing org.xml.sax.AttributeList.
My understanding is that the signature (
String,String,String,AttributeList) is deprecated. So I tried putting both versions in my handler:
(String,String,String,AttributeList)
(String,String,String,Attributes) (meaning of course I also import org.xml.sax.Attributes)
but neither one is invoked. I also made the signature explicit just in case there is another AttributeList in my classpath somewhere:
(String,String,String,org.xml.sax.AttributeList)