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https://issues.apache.org/jira/browse/NIFI-7279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17067099#comment-17067099
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ASF subversion and git services commented on NIFI-7279:
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Commit 975f2bdc4faabadec75e75079e6e458ef4fcc261 in nifi's branch
refs/heads/master from Bryan Bende
[ https://gitbox.apache.org/repos/asf?p=nifi.git;h=975f2bd ]
NIFI-7279 This closes #4160. Protect against NPE in
RedisDistributedMapCacheClientService when value is null
Signed-off-by: Joe Witt <[email protected]>
> Redis Detect Duplicate Issue
> ----------------------------
>
> Key: NIFI-7279
> URL: https://issues.apache.org/jira/browse/NIFI-7279
> Project: Apache NiFi
> Issue Type: Bug
> Affects Versions: 1.11.4
> Reporter: Scott Giles
> Assignee: Bryan Bende
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> When using a DetectDuplicate processor with a
> RedisDistributedMapCacheClientService cache service, if the Cache Entry
> Identifier is not in the cache and Cache The Entry Identifier is set to
> "false", a NullPointerException is thrown rather than the expected
> non-duplicate relationship.
>
> A possible fix would be to change line 202 of
> java/org/apache/nifi/redis/service/RedisDistributedMapCacheClientService.java
> to
> return (v !=null ? valueDeserializer.deserialize(v) : null);
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