what Jaxp for SAX validation

Hi When the compile the sample code Echo10.java, I am getting an error saying Attributes, DefaultHandler are not found. Please let me know in what pakage these classes will be there
[209 byte] By [Duker] at [2007-9-26 4:08:00]
# 1
Hi,I forgot to include that I have jaxp 1.0.1 and I am not seeing DefaultHandler and Attributes in parser.jar
Duker at 2007-6-29 13:09:49 > top of Java-index,Enterprise & Remote Computing,Enterprise Technologies...