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https://issues.apache.org/jira/browse/FLINK-3392?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15143736#comment-15143736
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Ted Yu commented on FLINK-3392:
-------------------------------
Please read the javadoc at the beginning of the class:
http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/java/util/ArrayDeque.java#36
> Unprotected access to elements in ClosableBlockingQueue#size()
> --------------------------------------------------------------
>
> Key: FLINK-3392
> URL: https://issues.apache.org/jira/browse/FLINK-3392
> Project: Flink
> Issue Type: Bug
> Reporter: Ted Yu
> Priority: Minor
>
> Here is related code:
> {code}
> public int size() {
> return elements.size();
> }
> {code}
> Access to elements should be protected by lock.lock() / lock.unlock() pair.
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