xuzhiwen1255 commented on code in PR #21971:
URL: https://github.com/apache/flink/pull/21971#discussion_r1119522105
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flink-streaming-java/src/main/java/org/apache/flink/streaming/api/functions/source/datagen/SequenceGenerator.java:
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@@ -53,6 +54,8 @@
* @param end End of the range of numbers to emit.
*/
public SequenceGenerator(long start, long end) {
+ Preconditions.checkArgument(
Review Comment:
Done.
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