If you have any idea plese reply or just give a brief description why we get this Invalid path error.
How about you giving us a brief description of where the error is coming from or how this path is being requested in the first place.
An invalid path can mean a lot of things.
The reason why I say it looks invalid is because /testing/test does not point to a filename OR Struts. (Unless you're using /testing/* to map to Struts which won't work, at least not since 1.1... I think.)