The test java/util/Spliterator/SpliteratorTraversingAndSplittingTest.java contains a large number of test cases that leverage some general spliterator testing methods.

Those methods are also duplicated in:

  java/util/Spliterator/SpliteratorCollisions.java
  java/util/stream/SpliteratorTestHelper.java

Those methods could be refactored into a separate library for reuse.

Such testing is required for BitSet for large memory configurations when the Integer.MAX_VALUE bit is set. If such cases are included in the SpliteratorTraversingAndSplittingTest.java test it can induce out of memory errors (see JDK-8169838)