Review Request: JDK-8168836 Minor clean up on warning/error messages on --add-exports and --add-reads

[Alan Bateman]

On 19/12/2016 01:44, Mandy Chung wrote:
> http://cr.openjdk.java.net/~mchung/jdk9/webrevs/8168836/webrev.00/
>
> This patch improves the warning/error message to include the option name, emit a warning if unknown module is specified with —-patch-module be consistent with the options.
>
The implementation update looks good.  As --patch-modules is a slow path 
then you could use cf.findModule(mn).ifPresent(...).

ExplodedModuleBuilder is useful infrastructure but I'm not sure that 
test/tools/lib is the right place as that location seems to be for 
jimage infrastructure (I've often thought this should move). Maybe 
test/lib/testlibrary would be better because that there is where 
ModuleUtils and the other test infrastructure used by these tests is. 
Also just wondering if there is a better name for this class as it 
supports both creation and compilation, maybe it should be in 
ModuleUtils as Builder or ModuleMaker (you might have tried a few names 
already). Once this is in then we might look at changes some of the 
existing tests to use it.

-Alan