Use case

We have some mappings between different microservice models. In one example, some incremental ID fields are returned as a String from the source model, but the target model has an Integer field to map them. It has worked for a long time, but now String values are overflowing the Int max range, and we are getting NumberFormatException in mapStruct generated code like: Integer.parseInt(s).

I think we can utilize the existing NARROWING_LUT hierarchy to report this kind of lossy conversion.

WDYT?

Note: I used the same hierarchy number with BigDecimal because most of the time, both ways of these BigDecimal<->String conversions are not lossy.

Generated Code

No response

Possible workarounds

No response

MapStruct Version

No response