No. I don't want to say it's completely impossible but it would be remarkably hard because jaxb relies on reflection/bytecode manipulation. Both are challenging on Android (due to obfuscation) and iOS (due to native compilation).
It should be easy/possible to map XML to property objects, this would result in a far superior experience to jaxb. It won't fail on devices and would work with obfuscation/compilation. It would easily map to other formats (e.g. JSON) and would offer other cool features such as UI binding etc.
https://www.codenameone.com/blog/properties-are-amazing.html
We didn't implement this but it's probably not a lot of work...