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Posted to jira@kafka.apache.org by "majialoong (via GitHub)" <gi...@apache.org> on 2026/06/30 17:49:40 UTC
[PR] KAFKA-20751: Preserve available versions for cached connector plugin validation failures [kafka]
majialoong opened a new pull request, #22712:
URL: https://github.com/apache/kafka/pull/22712
Preserve the available plugin versions stored in cached connector plugin validation failures.
This keeps repeated validation of an unavailable `connector.plugin.version` consistent with the initial validation response and avoids an NPE in the cached failure path.
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Re: [PR] KAFKA-20751: Preserve available versions for cached connector plugin validation failures [kafka]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on PR #22712:
URL: https://github.com/apache/kafka/pull/22712#issuecomment-4911275018
A label of 'needs-attention' was automatically added to this PR in order to raise the
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Re: [PR] KAFKA-20751: Preserve available versions for cached connector plugin validation failures [kafka]
Posted by "mimaison (via GitHub)" <gi...@apache.org>.
mimaison merged PR #22712:
URL: https://github.com/apache/kafka/pull/22712
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Re: [PR] KAFKA-20751: Preserve available versions for cached connector plugin validation failures [kafka]
Posted by "majialoong (via GitHub)" <gi...@apache.org>.
majialoong commented on PR #22712:
URL: https://github.com/apache/kafka/pull/22712#issuecomment-4846427811
Before this change, validating the same unavailable connector plugin version twice could return a 500/NPE response instead of the normal validation result.
Request:
```
http://localhost:8083/connector-plugins/org.apache.kafka.connect.file.FileStreamSinkConnector/config/validate
{
"connector.class": "org.apache.kafka.connect.file.FileStreamSinkConnector",
"connector.plugin.version": "2.0.1", // unavailable connector plugin version
"tasks.max": "1",
"topics": "test"
}
```
The second request will receive the following response:
```
{
"error_code": 500,
"message": "java.lang.NullPointerException: Cannot invoke \"java.util.List.stream()\" because the return value of \"org.apache.kafka.connect.runtime.isolation.VersionedPluginLoadingException.availableVersions()\" is null"
}
```
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