Github user vanzin commented on a diff in the pull request: https://github.com/apache/spark/pull/20284#discussion_r162168466 --- Diff: common/kvstore/src/test/java/org/apache/spark/util/kvstore/DBIteratorSuite.java --- @@ -112,7 +114,8 @@ public void setup() throws Exception { t.key = "key" + i; t.id = "id" + i; t.name = "name" + RND.nextInt(MAX_ENTRIES); - t.num = RND.nextInt(MAX_ENTRIES); + // Force one item to have an integer value of zero to test the fix for SPARK-23103. + t.num = (i != 0) ? (int) RND.nextLong() : 0; --- End diff -- `nextInt` doesn't return negative values. I can add a mod operator here, but the code already explicitly generates some clashes a few lines below.
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