Please review: VM side of Jigsaw classpath mode support

[Alan Bateman]

On 24/08/2012 23:53, David Holmes wrote:
>
> But I think we have a disconnect on what you are permitted to do via 
> jmod and what is required for a functional JRE. Using --natcmd and 
> --natlib and "jmod create" you can end up with the JRE binaries & 
> libraries in a completely different location to everything actually 
> associated with the base module.
>
> At a minimum this required layout must be documented. But preferably 
> jmod would enforce it.
>
> David
I have a write-up of the modules image structure that I should probably 
add to the project page. Note that this does not cover the layout of the 
module library as that it implementation specific and will likely change 
significantly over time.

In any case, the system module is mostly created by the build and it 
creates this in the image with appropriate options so that the commands 
and other files are in the expected locations. As I mentioned in the 
previous mail we have some constraints and can't be too radical in 
changing the image structure. So yes, this means the jmod command in the 
build needs to get the options right. Same thing for other tools that 
that create JRE images.

In any case, I don't see this as a concern for most developers, at least 
not unless they are creating custom runtimes that don't have the base 
image as their starting point.

-Alan