apache/beam

[Java] context.Output within try catch can catch errors from downstream transforms

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#39,101 opened on Jun 25, 2026

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Description

Related to https://github.com/apache/beam/issues/20935

Replace with try{i = parse}catch{} if i not null output

  • HL7v2IO

https://github.com/apache/beam/blob/48139dd7333a8c72ba8bc55bdc71ebb80211f768/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/healthcare/HL7v2IO.java#L365-L376

https://github.com/apache/beam/blob/3776a9992dd11116bed5a9576c6d846423be23d3/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/healthcare/HL7v2IO.java#L487-L498

  • FhirIO

https://github.com/apache/beam/blob/3776a9992dd11116bed5a9576c6d846423be23d3/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/healthcare/FhirIO.java#L602-L615

https://github.com/apache/beam/blob/3776a9992dd11116bed5a9576c6d846423be23d3/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigquery/BigQueryIO.java#L2108-L2141

Contributor guide

Research direction
Inspect the linked code sections and replace missing try catch blocks with proper error handling to prevent downstream errors from being swallowed.
Tech stack
java
Domain
backendapi
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
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Active
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Mostly clear
Prerequisites
GitJava
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65