A base configuration file named
struts-default.xml is included in the
struts2.jar file. This file is automatically included into
struts.xml file to provide the standard configuration settings without having to copy them.
To exclude the
struts-default.xml or to provide your own version, see the
struts.configuration.files setting in struts.properties.
The contents of struts-default.xml are here:
This file defines all of the default bundled results and interceptors and many interceptor stacks which you can use either as-is or as a basis for your own application-specific interceptor stacks. Notice the name of the package is "struts-default".