When standard Velocity cannot match a method call, XWiki try to find a close approximation that could be called provided the arguments are converted. The only criteria to select a suitable method used to be to count the number of arguments, but the order in which methods with the same number of arguments were tried was pretty much random. This leaded sometime to either hard to call methods or random results. This has been greatly improved to have more advanced ordering (taking into account already compatible arguments, etc.), see Velocity Module for more details.

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