aehrc / aehrc/pathling

Parameters annotated with @Nullable fail with null in Builders

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Dominant language
Java
Stars
134
Forks
24
Avg merge
1d 15h
Merged PRs (30d)
8

Description

Describe the bug
The builder methods in DataSinkBuilder and DataSourceBuilder have many methods annotated with @Nullable but they are checked to be non-null.

To Reproduce

new DataSourceBuilder(pathlingContext).parquet(null) // error, but annotated with nullable

Expected behavior
Many (if not all?) @Nullable annotations should be replaced with @Nonnull.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by inspecting DataSinkBuilder and DataSourceBuilder, focusing on methods annotated with @Nullable and their null checks. Reproduce the DataSourceBuilder(pathlingContext).parquet(null) behavior, then review the other builder methods for the same mismatch. Done means the annotations consistently describe whether null is accepted or rejected.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
backend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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