RFR(S)[12] : 8215322 : add @file support to jaotc

[Igor Ignatyev]

Hi Vladimir,

thanks for review! sure, I've added the test: http://cr.openjdk.java.net/~iignatyev//8215322/webrev.0-1/test/hotspot/jtreg/compiler/aot/cli/jaotc/AtFileTest.java.html 

-- Igor

> On Dec 13, 2018, at 4:52 PM, Vladimir Kozlov <vladimir.kozlov at oracle.com> wrote:
> 
> Looks good. Can you add small jtreg aot test to verify functionality?
> 
> Thanks,
> Vladimir
> 
> On 12/13/18 4:29 PM, Igor Ignatyev wrote:
>> http://cr.openjdk.java.net/~iignatyev//8215322/webrev.00
>>> 33 lines changed: 30 ins; 2 del; 1 mod;
>> Hi all,
>> could you please review this patch for jatoc tool?
>> from the bug:
>> currently, the number of jaotc argument is limited by max command line length, in some cases, it isn't enough, for example compiling a number of selected classes. many java tools have support for '@file' so adding the same support to jaotc is natural and will solve the problem w/ limitation.
>> I've requested approval per 'Late-Enhancement Request Process' from JEP 3 and will integrate it iif the approval is provided.
>> webrev: http://cr.openjdk.java.net/~iignatyev//8215322/webrev.00
>> JBS: https://bugs.openjdk.java.net/browse/JDK-8215322
>> testing: tier[1-2],hs-tier3-graal
>> Thanks,
>> -- Igor