RFR(XXS) : 8179930: jdk.test.lib.artifacts.ArtifactResolver::resolve should return Map instead of HashMap

[Igor Ignatyev]

http://cr.openjdk.java.net/~iignatyev//8179930/webrev.00/index.html
> 8 lines changed: 1 ins; 0 del; 7 mod;

Hi all,

could you please review this small patch which changes jdk.test.lib.artifacts.ArtifactResolver::resolve signature to return a Map instead of HasMap and updates the tests accordingly?
I have also changed the argument type from raw Class to Class<?>, so we don't need to have casts in the method. 

webrev: http://cr.openjdk.java.net/~iignatyev//8179930/webrev.00/index.html
JBS: https://bugs.openjdk.java.net/browse/JDK-8179930
testing: the affected tests (hotspot/test/applications)

-- Igor