java/util/BitSet/BitSetStreamTest.java

Tests Integer.MAX_VALUE bit set, which consumes lot of memory.

Test is now requires run in non-concurrency (test is in exclusiveAccess.dirs), and runs with:
@requires os.maxMemory >= 2g
@run testng/othervm -Xms512m -Xmx1024m BitSetStreamTest

Will see how's this working in real testing, and do further test split if still memory issue.