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https://issues.apache.org/jira/browse/DRILL-5533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16035802#comment-16035802
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ASF GitHub Bot commented on DRILL-5533:
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Github user asfgit closed the pull request at:
https://github.com/apache/drill/pull/843
> Fix flag assignment in FunctionInitializer.checkInit() method
> -------------------------------------------------------------
>
> Key: DRILL-5533
> URL: https://issues.apache.org/jira/browse/DRILL-5533
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.10.0
> Reporter: Arina Ielchiieva
> Assignee: Arina Ielchiieva
> Priority: Minor
> Labels: ready-to-commit
>
> FunctionInitializer.checkInit() method uses DCL to ensure that function body
> is loaded only once. But flag parameter is never updated and all threads are
> entering synchronized block.
> Also FunctionInitializer.getImports() always returns empty list.
> https://github.com/apache/drill/blob/3e8b01d5b0d3013e3811913f0fd6028b22c1ac3f/exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/FunctionInitializer.java
> Changes:
> 1. Fix DCL in FunctionInitializer.checkInit() method (update flag parameter
> when function body is loaded).
> 2. Fix ImportGrabber.getImports() method to return list with imports.
> 3. Add unit tests for FunctionInitializer.
> 4. Minor refactoring (rename methods, add javadoc).
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