GraalVM native images only supports a single locale, which is leading to an NPE in the mongodb driver, see this quarkus issue

The problem is in the JsonReader, which assumes EN as an available locale. When the user changes the language to something else, e.g. Italian, the NPE appears. JsonReader should assume the locale provided by the user and not EN.

I've created a temporary substitution that avoids the problem by returning a date as soon as its found (without checking the length), see here. I'm unsure whether such fix would work for mongodb in general. The real fix should be to use the language provided by the user, and then it'd be no problems.