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https://issues.apache.org/jira/browse/HDFS-13168?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16369425#comment-16369425
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BELUGA BEHR commented on HDFS-13168:
------------------------------------
[~elgoiri] It was intentional.
Because the following method uses it and there's no way around it, so I wanted
to keep it consistent.
{code:java}
@Override
void visit(ImageElement element, String value) throws IOException {
writeTag(element.toString(), value);
}{code}
> XmlImageVisitor - Prefer Array over LinkedList
> ----------------------------------------------
>
> Key: HDFS-13168
> URL: https://issues.apache.org/jira/browse/HDFS-13168
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs
> Affects Versions: 3.0.0
> Reporter: BELUGA BEHR
> Assignee: BELUGA BEHR
> Priority: Minor
> Attachments: HDFS-13168.1.patch, HDFS-13168.2.patch
>
>
> {{ArrayDeque}}
> {quote}This class is likely to be faster than Stack when used as a stack, and
> faster than LinkedList when used as a queue.{quote}
> .. not to mention less memory fragmentation (single backing array v.s. many
> ArrayList nodes).
> https://docs.oracle.com/javase/8/docs/api/java/util/ArrayDeque.html
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