RFR(S): 8138600: eliminate the need of ModuleLoaderMap.dat for CDS

[Jiangli Zhou]

Hi Calvin,

Glad to see those code being eliminated. 

Please also remove the following in classLoader.hpp. These macros were only used by the module loader map related code.

43 // Initial sizes of the following arrays are based on the generated ModuleLoaderMap.dat
  44 #define INITIAL_BOOT_MODULES_ARRAY_SIZE 30
  45 #define INITIAL_PLATFORM_MODULES_ARRAY_SIZE  15

Thanks,
Jiangli

> On Sep 12, 2017, at 3:14 PM, Calvin Cheung <calvin.cheung at oracle.com> wrote:
> 
> With the fix for JDK-8186842 <https://bugs.openjdk.java.net/browse/JDK-8186842>, we no longer need the ModuleLoaderMap to determine the loader type of a class during CDS dump time. This change is for removing the ModuleLoaderMap from the runtime image and the code which references it.
> 
> bug: https://bugs.openjdk.java.net/browse/JDK-8138600
> 
> webrevs:
> http://cr.openjdk.java.net/~ccheung/8138600/jdk/webrev.00/
> http://cr.openjdk.java.net/~ccheung/8138600/hotspot/webrev.00/
> 
> Testing:
>    JPRT
>    CDS tests
>    hs-tier3
> 
> thanks,
> Calvin
>