Kuromoji fails with UnsupportedOperationException in case of duplicate keys in the user dictionary [LUCENE-7992]
Open
legacy-jira-priority:Minor
type:bug
- Dominant language
- Java
- Stars
- 3.6k
- Forks
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- Avg merge
- 2d 11h
- Merged PRs (30d)
- 88
Description
Failing is the right thing to do but the exception could clarify the source of the problem. Today it just throws an UnsupportedOperationException with no error message because of a call to PositiveIntOutputs.merge.
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Migrated from [LUCENE-7992](https://issues.apache.org/jira/browse/LUCENE-7992) by Adrien Grand (@jpountz)
Contributor guide
Research direction
Start by locating the Kuromoji user-dictionary handling that reaches PositiveIntOutputs.merge when duplicate keys are encountered. Trace how the UnsupportedOperationException is produced and identify the existing tests for duplicate user-dictionary keys. Done means the failure remains intentional but the exception clearly identifies the source of the problem.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- search
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100