Github user zentol commented on a diff in the pull request: https://github.com/apache/flink/pull/5985#discussion_r188603310 --- Diff: flink-core/src/main/java/org/apache/flink/util/StringUtils.java --- @@ -348,6 +350,21 @@ public static String concatenateWithAnd(@Nullable String s1, @Nullable String s2 } } + /** + * Generates a string containing a comma-separated list of values in double-quatas. + * Uses lower-cased values returning from {@link Object#toString()} method for each element in the given array. --- End diff -- typo: returned
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