Should we build jrt-fs.jar again with the "Build JDK" ?

[Alan Bateman]

On 18/09/2023 14:51, Andrew Leonard wrote:
> Thanks for the clarification Alan.
>
> To ensure the reproducibility of the whole JDK image regardless of the 
> specific bootjdk used, would it make sense once the "Build JDK" has 
> been built, we re-build jrt-fs.jar again using the "Build JDK" ? Thus 
> jrt-fs.jar will be consistent with the rest of the image in terms of 
> what it is compiled with.
>

The boot JDK will be JDK N-1, or the newly built JDK in the case of boot 
cycle builds. It seems a bit of a stretch to have builds using different 
tool chains to produce identical bits but maybe you mean something else.

In any case, for jrt-fs.jar the important thing is that they are 
compiled to --release 8 (that might rev at some points) so that 
IDEs/tools can open a target run-time image as a file system and access 
the classes/resources.

-Alan.