RFR(XS) : 8178913 : CTW library does not close all opened resources

[Igor Ignatyev]

Thanks for your review.
-- Igor
> On Apr 18, 2017, at 4:37 PM, Vladimir Kozlov <vladimir.kozlov at oracle.com> wrote:
> 
> Good.
> 
> Vladimir
> 
> On 4/18/17 11:33 AM, Igor Ignatyev wrote:
>> http://cr.openjdk.java.net/~iignatyev//8178913/webrev.00/index.html
>>> 14 lines changed: 6 ins; 3 del; 5 mod;
>> 
>> Hi all,
>> 
>> could you please review this small fix for CTW library? there were several instance of resources leak in the library, this changeset fixes them by using try-w/-resource where applicable, and explicit close() call were not.
>> 
>> webrev: http://cr.openjdk.java.net/~iignatyev//8178913/webrev.00/index.html
>> JBS: https://bugs.openjdk.java.net/browse/JDK-8178913
>> testing: hotspot/test/testlibrary_tests/ctw
>> 
>> Thanks,
>> -- Igor
>>