[AVRO-3206] Provide more information in serialization error messages in SpecificDatumWriter

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.10.2
• Fix Version/s: 1.11.0
• Component/s: java
• Labels: pull-request-available
• Assignee: Gyula Komlossi
• Reporter: Gyula Komlossi
• Created: 14/Sep/21 15:28
• Updated: 23/Sep/21 14:45
• Resolved: 16/Sep/21 13:16

Description

In certain cases, when there is an error (like NPE, ClassCastException) in the "writeField" method of the "SpecificDatumWriter" class, the thrown exception doesn't contain the specific field causing the problem.

Similarly as implemented in GenericDatumWriter, the same exceptions could be caught and their message improved by adding the related field name causing the problem.

Currently, the message is like this:

java.lang.NullPointerException: null of string of org.apache.avro.test.TestRecord

But with the improvement it would be:

java.lang.NullPointerException: null of string in field 'name' of org.apache.avro.test.TestRecord

Issue Links

• links to: GitHub Pull Request #1335
• links to: GitHub Pull Request #1335