typetools / typetools/checker-framework

-Alint=trustArrayLenZero is not correctly working to recoganise @ArrayLen() annotation

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Description

-Alint=trustArrayLenZero command line option is suggested to resolve the errors created by CF for toArray() method.
Reference

We have tried to resolve the error :
https://github.com/checkstyle/checkstyle/blob/b16e96a757ccee5be66fabb8e666823ca3cb558a/config/checker-framework-suppressions/checker-nullness-optional-interning-suppressions.xml#L154-L163

created due to toArray() method. We tried to use @ArrayLen() annotation in Checkstyle, but even after adding the command line option in pom.xml file, It either does'nt recoganises the @ArrayLen() or not works correctly.


Link to the PR

Passed the command in
<CompilerArguments> like this : <Alint>trustArrayZeroLen</Alint>

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First steps

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  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 comparing the Checker Framework documentation with the referenced checker-nullness-optional-interning-suppressions.xml lines and the pom.xml CompilerArguments entry. Review PR 14596 and verify whether the option and @ArrayLen() annotation are recognized as intended; done means the reported toArray() errors are resolved without incorrect annotation handling.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
devtools
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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