JAXP Application Programming Interface
The usage of the three methods
ErrorListener class has changed. This is in line with clarifications made to the JAXP specification,
and with the behavior of other products. Conditions classified in the XSLT, XQuery, or XPath specifications as errors
are now notified to the
fatalError() method. Conditions described in the XSLT specification as recoverable
errors are notified to the
error() method, provided that Saxon is capable of recovering from them.
warning() method is now used only for conditions that are not errors according to the W3C language
specifications, but indicate that something might be wrong.