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https://issues.apache.org/jira/browse/SOLR-14541?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Erick Erickson resolved SOLR-14541.
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Fix Version/s: 8.6
Resolution: Fixed
> Ensure classes that implement equals implement hashCode or suppress warnings
> ----------------------------------------------------------------------------
>
> Key: SOLR-14541
> URL: https://issues.apache.org/jira/browse/SOLR-14541
> Project: Solr
> Issue Type: Sub-task
> Reporter: Erick Erickson
> Assignee: Erick Erickson
> Priority: Major
> Fix For: 8.6
>
> Attachments: 0001-SOLR-14541-add-hashCode-for-some-classes.patch,
> 0002-SOLR-14541-add-hashCode-for-some-classes-in-autoscal.patch,
> 0003-SOLR-14541-add-hashCode-or-remove-equals-for-some-cl.patch
>
> Time Spent: 5.5h
> Remaining Estimate: 0h
>
> While looking at warnings, I found that the following classes generate this
> warning:
> *overrides equals, but neither it nor any superclass overrides hashCode
> method*
> I can suppress the warning, but this has been a source of errors in the past
> so I'm reluctant to just do that blindly.
> NOTE: The Lucene one should probably be it's own Jira if it's going to have
> hashCode implemented, but here for triage.
> What I need for each method is for someone who has a clue about that
> particular code to render an opinion that we can safely suppress the warning
> or to provide a hashCode method.
> Some of these have been here for a very long time and were implemented by
> people no longer active...
> lucene/suggest/src/java/org/apache/lucene/search/spell/LuceneLevenshteinDistance.java:39
> solr/solrj/src/java/org/apache/solr/common/cloud/ZkNodeProps.java:34
> solr/solrj/src/java/org/apache/solr/common/cloud/Replica.java:26
> solr/solrj/src/java/org/apache/solr/common/cloud/DocCollection.java:49
> solr/core/src/java/org/apache/solr/cloud/rule/Rule.java:277
> solr/core/src/java/org/apache/solr/pkg/PackageAPI.java:177
> solr/core/src/java/org/apache/solr/packagemanager/SolrPackageInstance.java:31
>
> Noble Paul says it's OK to suppress warnings for these:
> solr/solrj/src/java/org/apache/solr/client/solrj/cloud/autoscaling/VersionedData.java:31
>
> solr/solrj/src/java/org/apache/solr/client/solrj/cloud/autoscaling/AutoScalingConfig.java:61
>
> solr/solrj/src/java/org/apache/solr/client/solrj/cloud/autoscaling/AutoScalingConfig.java:150
>
> solr/solrj/src/java/org/apache/solr/client/solrj/cloud/autoscaling/AutoScalingConfig.java:252
>
> solr/solrj/src/java/org/apache/solr/client/solrj/cloud/autoscaling/AutoScalingConfig.java:45
>
> solr/solrj/src/java/org/apache/solr/client/solrj/cloud/autoscaling/Policy.java:73
>
> solr/solrj/src/java/org/apache/solr/client/solrj/cloud/autoscaling/Preference.java:32
>
> solr/solrj/src/java/org/apache/solr/client/solrj/cloud/autoscaling/ReplicaInfo.java:39
>
> Joel Bernstein says it's OK to suppress warnings for these:
>
> solr/solrj/src/java/org/apache/solr/client/solrj/cloud/autoscaling/ReplicaCount.java:27
>
> solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/expr/StreamExpression.java:25
>
> solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/expr/StreamExpressionNamedParameter.java:23
>
> solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/CloudSolrStream.java:467
>
> solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/DeepRandomStream.java:417
>
> solr/solrj/src/java/org/apache/solr/client/solrj/io/stream/expr/StreamExpressionValue.java:22
>
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