RFR: 8059475: Test echeneis/vm/mm/gc/allgc_withfull/SoftReferenceTest#testSoftReference512To2kEvery4th fails

[Andrey Zakharov]

Hello, team
As part of subj. bug I've ported this test to jtreg.
As this test is new for jtreg - copyrights sets to 2014.
Test is pretty simple and old - it tests that when we OOM all soft 
references has been cleared
Source remains almost same. Fixed final list iteration and invocation 
for jtreg.

webrev:
http://cr.openjdk.java.net/~fzhinkin/azakharov/8059661/webrev.00

bug:
https://bugs.openjdk.java.net/browse/JDK-8059661