flink-cdc-connect/flink-cdc-source-connectors/flink-cdc-base/src/main/java/org/apache/flink/cdc/connectors/base/source/assigner/splitter/ChunkRange.java [47:57]:
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    private ChunkRange(@Nullable Object chunkStart, @Nullable Object chunkEnd) {
        if (chunkStart != null || chunkEnd != null) {
            checkArgument(
                    !Objects.equals(chunkStart, chunkEnd),
                    "Chunk start %s shouldn't be equal to chunk end %s",
                    chunkStart,
                    chunkEnd);
        }
        this.chunkStart = chunkStart;
        this.chunkEnd = chunkEnd;
    }
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flink-cdc-connect/flink-cdc-source-connectors/flink-connector-mysql-cdc/src/main/java/org/apache/flink/cdc/connectors/mysql/source/assigners/ChunkRange.java [47:57]:
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    private ChunkRange(@Nullable Object chunkStart, @Nullable Object chunkEnd) {
        if (chunkStart != null || chunkEnd != null) {
            checkArgument(
                    !Objects.equals(chunkStart, chunkEnd),
                    "Chunk start %s shouldn't be equal to chunk end %s",
                    chunkStart,
                    chunkEnd);
        }
        this.chunkStart = chunkStart;
        this.chunkEnd = chunkEnd;
    }
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