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https://issues.apache.org/jira/browse/HADOOP-15223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16361861#comment-16361861
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Akira Ajisaka edited comment on HADOOP-15223 at 2/13/18 6:08 AM:
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For example, in the following code, {{Collections.EMPTY_SET}} can be replaced
with {{Collections.emptySet()}} to avoid unchecked assignment warning.
{code:java}
public Set<String> getAllocationTags() {
return Collections.EMPTY_SET;
}{code}
was (Author: ajisakaa):
For example, in the following code, {{Collections.EMPTY_SET}} can be replaced
with {{Collections.emptySet()}} to avoid unchecked assignment.
{code:java}
public Set<String> getAllocationTags() {
return Collections.EMPTY_SET;
}{code}
> Replace Collections.EMPTY_SET and EMPTY_MAP with emptySet() and emptyMap()
> when available
> -----------------------------------------------------------------------------------------
>
> Key: HADOOP-15223
> URL: https://issues.apache.org/jira/browse/HADOOP-15223
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Akira Ajisaka
> Priority: Minor
>
> The use of {{Collections.EMPTY_SET}} and {{Collections.EMPTY_MAP}} often
> causes unchecked assignment and it should be replaced with
> {{Collections.emptySet()}} and {{Collections.emptyMap()}}.
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