In WebLogic, there's a method to personalize standard error pages like HTTP 404 within the web programs using web.xml

<web-app xmlns="">

It is possible to method to configure default domain-wide error page for the programs WebLogic has running without editing web.xml? Will it be easy to capture the 404 in Apache and serve a typical error page?

I'm not sure of a method to set the 404 page domain-wide (I doubt there's a means because this will probably be provided individually by each application).

However, you are able to catch it on the internet-tier. For Apache, you should use the ErrorDocument directive. For instance, ErrorDocument 404 /404.html

You can define a mistake page in Apache WebLogic wordpress plugin: