apache/arrow-java

The real exception was swallowed by another exception in CompositeJdbcConsumer::consume

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#734 opened on Apr 28, 2025

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 (4 comments) (0 reactions) (1 assignee)Java (132 forks)auto 404
Type: bughelp wanted

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Description

Describe the bug, including details regarding any error messages, version, and platform.

In function CompositeJdbcConsumer::consume, consumer.vector.getMinorType().getType() may throw an exception if getType return null. For example, vector.getMinorType return DECIMAL type but DECIMAL doesn't have get type: DECIMAL((ArrowType)null) (in Types.java).

Contributor guide

Research direction
Inspect the CompositeJdbcConsumer::consume method and the getMinorType().getType() call. Ensure that getType returns a non null value or handle the null case appropriately.
Tech stack
java
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Java
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70