[ 
https://issues.apache.org/jira/browse/SOLR-12881?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16683807#comment-16683807
 ] 

Christine Poerschke commented on SOLR-12881:
--------------------------------------------

bq. ... cleanup ...

+1

Could we perhaps also do something to prevent re-introductions i.e. to keep 
things shiny after cleanup?
* Perhaps 
https://github.com/apache/lucene-solr/blob/master/lucene/tools/src/groovy/check-source-patterns.groovy
 (or [~thetaphi]'s 
https://github.com/apache/lucene-solr/tree/master/lucene/tools/forbiddenApis ?) 
could guard against {{import java.lang}} re-introduction?
* In 
https://github.com/apache/lucene-solr/blob/releases/lucene-solr/7.5.0/dev-tools/eclipse/dot.settings/org.eclipse.jdt.core.prefs#L34
 and 
https://github.com/apache/lucene-solr/blob/releases/lucene-solr/7.5.0/lucene/tools/javadoc/ecj.javadocs.prefs#L85
 we currently have
{{org.eclipse.jdt.core.compiler.problem.unusedImport=error}} and the latter 
file is used by precommit. Not sure if something equivalent specifically 
looking for same-package imports exists?



> Remove unneeded import statements
> ---------------------------------
>
>                 Key: SOLR-12881
>                 URL: https://issues.apache.org/jira/browse/SOLR-12881
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>    Affects Versions: master (8.0)
>            Reporter: Peter Somogyi
>            Assignee: Erick Erickson
>            Priority: Trivial
>         Attachments: SOLR-12881.patch, SOLR-12881.patch
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> There are unnecessary import statements:
>  * import from java.lang
>  * import from same package
>  * unused import



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