With b84 the following line leads to OOM (worked fine with b83):


 Streams.generate(() -> "a").substream(1).parallel().iterator().next();


Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
    at java.util.stream.SpinedBuffer.ensureCapacity(SpinedBuffer.java:137)
    at java.util.stream.Nodes$SpinedNodeBuilder.begin(Nodes.java:1204)
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:393)
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:384)
    at java.util.stream.SliceOps$SliceTask.doLeaf(SliceOps.java:317)
    at java.util.stream.SliceOps$SliceTask.doLeaf(SliceOps.java:266)
    at java.util.stream.AbstractTask.compute(AbstractTask.java:287)
    at java.util.concurrent.CountedCompleter.exec(CountedCompleter.java:710)
    at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:260)
    at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1012)
    at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1631)
    at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)



the following JCK tests fail with OOM on b84

api/java_util/Arrays/StreamOffsetLengthTests.html#StreamOffsetLengthTests[substream_skipSeveral_determinedOrder]
api/java_util/stream/Streams/ConcatInfinite.html#ConcatInfinite[substream_skipSeveral_determinedOrder]
api/java_util/stream/Streams/index.html#GenerateIntCycled[substream_skipSeveral_determinedOrder]
api/java_util/stream/Streams/index.html#GenerateLongCycled[substream_skipSeveral_determinedOrder]
api/java_util/stream/Streams/index.html#GenerateCycled[substream_skipSeveral_determinedOrder]
api/java_util/stream/Streams/index.html#GenerateRepeated[substream_skipSeveral_determinedOrder]
api/java_util/stream/Streams/index.html#GenerateDoubleCycled[substream_skipSeveral_determinedOrder]
api/java_util/stream/Streams/index.html#IterateStrings[substream_skipSeveral_determinedOrder]
api/java_util/stream/Streams/index.html#IterateIntegers[substream_skipSeveral_determinedOrder]