wgtmac commented on code in PR #3126: URL: https://github.com/apache/parquet-java/pull/3126#discussion_r1921903844
########## parquet-column/src/main/java/org/apache/parquet/column/statistics/SizeStatistics.java: ########## @@ -136,8 +136,10 @@ public SizeStatistics( List<Long> definitionLevelHistogram) { this.type = type; this.unencodedByteArrayDataBytes = unencodedByteArrayDataBytes; - this.repetitionLevelHistogram = repetitionLevelHistogram; - this.definitionLevelHistogram = definitionLevelHistogram; + this.repetitionLevelHistogram = + repetitionLevelHistogram == null ? Collections.emptyList() : repetitionLevelHistogram; + this.definitionLevelHistogram = + definitionLevelHistogram == null ? Collections.emptyList() : definitionLevelHistogram; Review Comment: This is related to https://github.com/apache/parquet-java/pull/3124. Other Parquet implementations might have omitted histogram for certain max_level values. Reading these files may cause NPE. Please also help me review that PR as well. Thanks! -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@parquet.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@parquet.apache.org For additional commands, e-mail: issues-h...@parquet.apache.org