[AVRO-3792] GenericData compare fails for Maps size = 0 or sizes not same

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 1.11.2
• Component/s: java
• Labels: pull-request-available

Language

java

• Assignee: Unassigned
• Reporter: Mark Paxton
• Created: 07/Jul/23 12:26
• Updated: 07/Jul/23 12:59
• Resolved: 07/Jul/23 12:59

Description

Comparison of GenericData in the java avro library is incorrectly implemented.

 

Two bugs exists:

1) Shortcut returning of 'different' is wrong, since it compares m1.size() != m1.size() instead of m1.size() != m2.size()

 

2) When one of both maps are empty, the iterator throws an exception. There is no 'isEmpty' check.

 

See PR: https://github.com/apache/avro/pull/2325

 

Issue Links

• duplicates: AVRO-3789 Comparing maps in GenericData is wrong for certain combinations and fails for empty maps
• links to: GitHub Pull Request #2325