[HADOOP-13202] Avoid possible overflow in org.apache.hadoop.util.bloom.BloomFilter#getNBytes

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.7.2
• Fix Version/s: 2.8.0, 2.7.4, 3.0.0-alpha1
• Component/s: util
• Hadoop Flags: Reviewed
• Assignee: Kai
• Reporter: zhengbing li
• Created: 25/May/16 03:31
• Updated: 30/Aug/16 01:14
• Resolved: 18/Jul/16 18:54

Description

Current implementation:
return (vectorSize + 7) / 8;
when vectorSize is 2147483647（the max value of Int), error :"java.lang.NegativeArraySizeException" will report
the implementation might be changed
return (int)(((long)vectorSize + 7) / 8);