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https://issues.apache.org/jira/browse/HDFS-9522?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15088994#comment-15088994
 ] 

Hadoop QA commented on HDFS-9522:
---------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 0s 
{color} | {color:blue} Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 0s 
{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m 
0s {color} | {color:green} The patch appears to include 2 new or modified test 
files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 8m 
36s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 9m 34s 
{color} | {color:green} trunk passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 10m 
21s {color} | {color:green} trunk passed with JDK v1.7.0_91 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m 
9s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 2m 3s 
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
45s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 4m 
41s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 56s 
{color} | {color:green} trunk passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m 44s 
{color} | {color:green} trunk passed with JDK v1.7.0_91 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 
52s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 9m 24s 
{color} | {color:green} the patch passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 9m 24s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 9m 24s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 10m 
19s {color} | {color:green} the patch passed with JDK v1.7.0_91 {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 10m 19s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 10m 19s 
{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 1m 4s 
{color} | {color:red} Patch generated 2 new checkstyle issues in root (total 
was 69, now 67). {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 2m 15s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
44s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 
0s {color} | {color:green} Patch has no whitespace issues. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 2m 25s 
{color} | {color:red} hadoop-hdfs-project/hadoop-hdfs-client introduced 2 new 
FindBugs issues. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m 1s 
{color} | {color:green} the patch passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m 27s 
{color} | {color:green} the patch passed with JDK v1.7.0_91 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 49s 
{color} | {color:green} hadoop-hdfs-client in the patch passed with JDK 
v1.8.0_66. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 69m 10s {color} 
| {color:red} hadoop-hdfs in the patch failed with JDK v1.8.0_66. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 6m 56s 
{color} | {color:green} hadoop-distcp in the patch passed with JDK v1.8.0_66. 
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m 5s 
{color} | {color:green} hadoop-hdfs-client in the patch passed with JDK 
v1.7.0_91. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 68m 42s {color} 
| {color:red} hadoop-hdfs in the patch failed with JDK v1.7.0_91. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 7m 8s 
{color} | {color:green} hadoop-distcp in the patch passed with JDK v1.7.0_91. 
{color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 
25s {color} | {color:green} Patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 235m 8s {color} 
| {color:black} {color} |
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|| Reason || Tests ||
| FindBugs | module:hadoop-hdfs-project/hadoop-hdfs-client |
|  |  
org.apache.hadoop.hdfs.protocol.SnapshotDiffReport$RenameEntry.getTargetPath() 
may expose internal representation by returning 
SnapshotDiffReport$RenameEntry.targetPath  At SnapshotDiffReport.java:by 
returning SnapshotDiffReport$RenameEntry.targetPath  At 
SnapshotDiffReport.java:[line 188] |
|  |  org.apache.hadoop.hdfs.protocol.SnapshotDiffReport$RenameEntry doesn't 
override SnapshotDiffReport$DiffReportEntry.equals(Object)  At 
SnapshotDiffReport.java:At SnapshotDiffReport.java:[line 1] |
| JDK v1.8.0_66 Failed junit tests | 
hadoop.hdfs.server.datanode.TestDataNodeMetrics |
|   | hadoop.hdfs.server.blockmanagement.TestBlockTokenWithDFSStriped |
|   | hadoop.hdfs.server.datanode.TestBlockReplacement |
|   | hadoop.hdfs.server.namenode.ha.TestHAAppend |
|   | hadoop.hdfs.server.namenode.TestCacheDirectives |
| JDK v1.7.0_91 Failed junit tests | 
hadoop.hdfs.server.datanode.fsdataset.impl.TestLazyPersistPolicy |
|   | hadoop.hdfs.server.datanode.TestDataNodeHotSwapVolumes |
|   | hadoop.hdfs.server.namenode.snapshot.TestSnapshotFileLength |
|   | hadoop.hdfs.server.datanode.TestBlockReplacement |
|   | hadoop.hdfs.server.namenode.TestFileTruncate |
|   | hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot |
\\
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:0ca8df7 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12781148/HDFS-9522-004.patch |
| JIRA Issue | HDFS-9522 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  cc  |
| uname | Linux 11ffeefd8f4d 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed 
Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh 
|
| git revision | trunk / 89022f8 |
| Default Java | 1.7.0_91 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_66 
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_91 |
| findbugs | v3.0.0 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HDFS-Build/14066/artifact/patchprocess/diff-checkstyle-root.txt
 |
| findbugs | 
https://builds.apache.org/job/PreCommit-HDFS-Build/14066/artifact/patchprocess/new-findbugs-hadoop-hdfs-project_hadoop-hdfs-client.html
 |
| unit | 
https://builds.apache.org/job/PreCommit-HDFS-Build/14066/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_66.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HDFS-Build/14066/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_91.txt
 |
| unit test logs |  
https://builds.apache.org/job/PreCommit-HDFS-Build/14066/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_66.txt
 
https://builds.apache.org/job/PreCommit-HDFS-Build/14066/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_91.txt
 |
| JDK v1.7.0_91  Test Results | 
https://builds.apache.org/job/PreCommit-HDFS-Build/14066/testReport/ |
| modules | C: hadoop-hdfs-project/hadoop-hdfs 
hadoop-hdfs-project/hadoop-hdfs-client hadoop-tools/hadoop-distcp U: . |
| Max memory used | 76MB |
| Powered by | Apache Yetus 0.2.0-SNAPSHOT   http://yetus.apache.org |
| Console output | 
https://builds.apache.org/job/PreCommit-HDFS-Build/14066/console |


This message was automatically generated.



> Cleanup o.a.h.hdfs.protocol.SnapshotDiffReport
> ----------------------------------------------
>
>                 Key: HDFS-9522
>                 URL: https://issues.apache.org/jira/browse/HDFS-9522
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: John Zhuge
>            Assignee: John Zhuge
>            Priority: Minor
>         Attachments: HDFS-9522-001.patch, HDFS-9522-002.patch, 
> HDFS-9522-003.patch, HDFS-9522-004.patch
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> The current DiffReportEntry is a C-style tagged union-like data structure.  
> Recommend subclass hierarchy as in Java idiom.



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