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https://issues.apache.org/jira/browse/HBASE-18986?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16205355#comment-16205355
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Hudson commented on HBASE-18986:
--------------------------------
FAILURE: Integrated in Jenkins build HBase-Trunk_matrix #3894 (See
[https://builds.apache.org/job/HBase-Trunk_matrix/3894/])
HBASE-18986 Remove unnecessary null check after (jerryjch: rev
83af5f2c623cb3180ab21f17f5681d4328acdc76)
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
> Remove unnecessary null check after CellUtil.cloneQualifier()
> -------------------------------------------------------------
>
> Key: HBASE-18986
> URL: https://issues.apache.org/jira/browse/HBASE-18986
> Project: HBase
> Issue Type: Improvement
> Reporter: Xiang Li
> Assignee: Xiang Li
> Priority: Minor
> Fix For: 3.0.0, 2.0.0-alpha-4
>
> Attachments: HBASE-18986.master.000.patch
>
>
> In master branch,
> {code:title=hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java|borderStyle=solid}
> // From line 2858
> public void prepareDeleteTimestamps(Mutation mutation, Map<byte[],
> List<Cell>> familyMap,
> byte[] byteNow) throws IOException {
> for (Map.Entry<byte[], List<Cell>> e : familyMap.entrySet()) {
> // ...
> for (int i=0; i < listSize; i++) {
> // ...
> if (cell.getTimestamp() == HConstants.LATEST_TIMESTAMP &&
> CellUtil.isDeleteType(cell)) {
> byte[] qual = CellUtil.cloneQualifier(cell);
> if (qual == null) qual = HConstants.EMPTY_BYTE_ARRAY; // <-- here
> ...
> {code}
> Might {{if (qual == null) qual = HConstants.EMPTY_BYTE_ARRAY;}} be removed?
> Could it be null after CellUtil.cloneQualifier()?
> {code:title=hbase-common/src/main/java/org/apache/hadoop/hbase/CellUtil.java|borderStyle=solid}
> public static byte[] cloneQualifier(Cell cell){
> byte[] output = new byte[cell.getQualifierLength()];
> copyQualifierTo(cell, output, 0);
> return output;
> }
> {code}
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