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https://issues.apache.org/jira/browse/HBASE-18878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16195128#comment-16195128
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Hudson commented on HBASE-18878:
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Results for branch HBASE-18467, done in 4 hr 24 min and counting
[build #136 on
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/HBASE-18467/136/]:
FAILURE
----
details (if available):
(x) *{color:red}-1 overall{color}*
Committer, please check your recent inclusion of a patch for this issue.
(x) {color:red}-1 general checks{color}
-- For more information [see general
report|https://builds.apache.org/job/HBase%20Nightly/job/HBASE-18467/136//General_Nightly_Build_Report/]
(/) {color:green}+1 jdk8 checks{color}
-- For more information [see jdk8
report|https://builds.apache.org/job/HBase%20Nightly/job/HBASE-18467/136//JDK8_Nightly_Build_Report/]
(x) {color:red}-1 source release artifact{color}
-- See build output for details.
> Use Optional<T> return types when T can be null
> -----------------------------------------------
>
> Key: HBASE-18878
> URL: https://issues.apache.org/jira/browse/HBASE-18878
> Project: HBase
> Issue Type: Sub-task
> Components: Coprocessors
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Fix For: 2.0.0-alpha-4
>
> Attachments: HBASE-18878.master.001.patch, HBASE-18878.patch,
> HBASE-18878-v1.patch
>
>
> I've already done lots of Nullable to Optional change when purging the
> interfaces for CP. This is a big one so open a separated issue for it.
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