square / square/wire

Calling withoutUnknownFields() throws AssertionError on JVM

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bug
Dominant language
Kotlin
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Forks
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Avg merge
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Merged PRs (30d)
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Description

withoutUnknownFields() implementation in jvmMain/.../Message.kt calls into newBuilder(), which throws AssertionError in Kotlin code.

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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 reading the withoutUnknownFields() implementation in jvmMain/.../Message.kt and trace its call into newBuilder(). Reproduce the JVM failure and determine the expected behavior for this call; done means withoutUnknownFields() no longer throws AssertionError.

Written by the indexing model from the issue text.

Assessment

Tech stack
kotlin
Domain
backend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
38/100

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