If it is like the below:-Correct, in the classpath or any other path resolver that a tool may use.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE tiles-definitions SYSTEM "tiles-config_1_2.dtd">
In such case the tiles-config_1_2.dtd should be located in the classpath of the local system?
For the first one to work, <!DOCTYPE tiles-definitions PUBLIC "-//Apache Software Foundation//DTD Tiles Configuration 1.1//EN"Actually no.
"http://jakarta.apache.org/struts/dtds/tiles-config_1_2.dtd"> we need to have an internet connection so that internally a search will be
done and the respective tiles-config_1_2.dtd will be picked up.