Graal is a lot of work on some libraries, I had to use an xsd to pojo mapper, and it was a lot of profiling with the tracing agent that save the reflection and

Graal is a lot of work on some libraries, I had to use an xsd to pojo mapper, and it was a lot of profiling with the tracing agent that save the reflection and ressources used, when using spark java micro framework. But micronaut has a facility to automatically handling the mapping lib, so it is less work if it is supported. When porting the tracing agent and a lot of integration tests that test all the code branches is key.