This package provides the mechanism for XML DTD and XSD files to reside on the local system (as opposed to having to continually update a public web server). You will most likely need to be root in order to install this. In addition, the JAR file needs to be placed under the JAR file

[pkb@guacamole keyval]$ su -
Password:
bash-2.03# cd /opt/j2sdk1.4.2_03/jre/lib
bash-2.03# if [ ! -d endorsed ]; then mkdir endorsed; fi
bash-2.03# cd endorsed
bash-2.03# /opt/sfw/bin/wget http://xml.apache.org/dist/commons/resolver-latest.jar
--09:56:23--  http://xml.apache.org/dist/commons/resolver-latest.jar
           => `resolver-latest.jar'
Connecting to xml.apache.org:80... connected!
HTTP request sent, awaiting response... 200 OK
Length: 51,861 [application/octet-stream]
 
    0K -> .......... .......... .......... .......... .......... [ 98%]
   50K ->                                                        [100%]
 
09:56:24 (89.16 KB/s) - `resolver-latest.jar' saved [51861/51861]
 
bash-2.03#