[ 
https://issues.apache.org/jira/browse/HADOOP-17106?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17149333#comment-17149333
 ] 

Hadoop QA commented on HADOOP-17106:
------------------------------------

| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  1m 
35s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} dupname {color} | {color:green}  0m  
0s{color} | {color:green} No case conflicting files found. {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 8 new or modified test 
files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  1m 
11s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 28m 
29s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 27m 
24s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  3m 
45s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  6m 
19s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
29m 13s{color} | {color:green} branch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  4m 
16s{color} | {color:green} trunk passed {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue}  4m  
0s{color} | {color:blue} Used deprecated FindBugs config; considering switching 
to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 10m 
33s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
31s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  4m 
21s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 25m  
9s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 25m  
9s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
4m 12s{color} | {color:orange} root: The patch generated 3 new + 579 unchanged 
- 7 fixed = 582 total (was 586) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  6m 
26s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m 
 0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
17m 31s{color} | {color:green} patch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  3m 
47s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 10m 
13s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 10m  
3s{color} | {color:green} hadoop-common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  3m 
40s{color} | {color:green} hadoop-kms in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  2m 
12s{color} | {color:green} hadoop-hdfs-client in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}125m 58s{color} 
| {color:red} hadoop-hdfs in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  1m 
 0s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}321m 41s{color} | 
{color:black} {color} |
\\
\\
|| Reason || Tests ||
| Failed junit tests | 
hadoop.hdfs.server.blockmanagement.TestBlockTokenWithDFSStriped |
|   | hadoop.hdfs.server.sps.TestExternalStoragePolicySatisfier |
|   | hadoop.hdfs.server.namenode.TestDecommissioningStatus |
\\
\\
|| Subsystem || Report/Notes ||
| Docker | ClientAPI=1.40 ServerAPI=1.40 base: 
https://builds.apache.org/job/PreCommit-HADOOP-Build/17018/artifact/out/Dockerfile
 |
| JIRA Issue | HADOOP-17106 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/13006797/HADOOP-17106.001.patch
 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite 
unit shadedclient findbugs checkstyle |
| uname | Linux c0f22442c14d 4.15.0-74-generic #84-Ubuntu SMP Thu Dec 19 
08:06:28 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | personality/hadoop.sh |
| git revision | trunk / 9ac498e3005 |
| Default Java | Private Build-1.8.0_252-8u252-b09-1~18.04-b09 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/17018/artifact/out/diff-checkstyle-root.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/17018/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/17018/testReport/ |
| Max. process+thread count | 3093 (vs. ulimit of 5500) |
| modules | C: hadoop-common-project/hadoop-common 
hadoop-common-project/hadoop-kms hadoop-hdfs-project/hadoop-hdfs-client 
hadoop-hdfs-project/hadoop-hdfs U: . |
| Console output | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/17018/console |
| versions | git=2.17.1 maven=3.6.0 findbugs=3.1.0-RC1 |
| Powered by | Apache Yetus 0.12.0 https://yetus.apache.org |


This message was automatically generated.



> Replace Guava Joiner with Java8 String Join
> -------------------------------------------
>
>                 Key: HADOOP-17106
>                 URL: https://issues.apache.org/jira/browse/HADOOP-17106
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Ahmed Hussein
>            Assignee: Ahmed Hussein
>            Priority: Major
>         Attachments: HADOOP-17106.001.patch
>
>
> Replace \{{com.google.common.base.Joiner}} with String.join.
>  
> {code:java}
> Targets
>     Occurrences of 'com.google.common.base.Joiner' in project with mask 
> '*.java'
> Found Occurrences  (103 usages found)
>     org.apache.hadoop.crypto.key.kms.server  (1 usage found)
>         SimpleKMSAuditLogger.java  (1 usage found)
>             26 import com.google.common.base.Joiner;
>     org.apache.hadoop.fs  (1 usage found)
>         TestPath.java  (1 usage found)
>             37 import com.google.common.base.Joiner;
>     org.apache.hadoop.fs.s3a  (1 usage found)
>         StorageStatisticsTracker.java  (1 usage found)
>             25 import com.google.common.base.Joiner;
>     org.apache.hadoop.ha  (1 usage found)
>         TestHAAdmin.java  (1 usage found)
>             34 import com.google.common.base.Joiner;
>     org.apache.hadoop.hdfs  (8 usages found)
>         DFSClient.java  (1 usage found)
>             196 import com.google.common.base.Joiner;
>         DFSTestUtil.java  (1 usage found)
>             76 import com.google.common.base.Joiner;
>         DFSUtil.java  (1 usage found)
>             108 import com.google.common.base.Joiner;
>         DFSUtilClient.java  (1 usage found)
>             20 import com.google.common.base.Joiner;
>         HAUtil.java  (1 usage found)
>             59 import com.google.common.base.Joiner;
>         MiniDFSCluster.java  (1 usage found)
>             145 import com.google.common.base.Joiner;
>         StripedFileTestUtil.java  (1 usage found)
>             20 import com.google.common.base.Joiner;
>         TestDFSUpgrade.java  (1 usage found)
>             53 import com.google.common.base.Joiner;
>     org.apache.hadoop.hdfs.protocol  (1 usage found)
>         LayoutFlags.java  (1 usage found)
>             26 import com.google.common.base.Joiner;
>     org.apache.hadoop.hdfs.protocolPB  (1 usage found)
>         TestPBHelper.java  (1 usage found)
>             118 import com.google.common.base.Joiner;
>     org.apache.hadoop.hdfs.qjournal  (1 usage found)
>         MiniJournalCluster.java  (1 usage found)
>             43 import com.google.common.base.Joiner;
>     org.apache.hadoop.hdfs.qjournal.client  (5 usages found)
>         AsyncLoggerSet.java  (1 usage found)
>             38 import com.google.common.base.Joiner;
>         QuorumCall.java  (1 usage found)
>             32 import com.google.common.base.Joiner;
>         QuorumException.java  (1 usage found)
>             25 import com.google.common.base.Joiner;
>         QuorumJournalManager.java  (1 usage found)
>             62 import com.google.common.base.Joiner;
>         TestQuorumCall.java  (1 usage found)
>             29 import com.google.common.base.Joiner;
>     org.apache.hadoop.hdfs.server.blockmanagement  (4 usages found)
>         HostSet.java  (1 usage found)
>             21 import com.google.common.base.Joiner;
>         TestBlockManager.java  (1 usage found)
>             20 import com.google.common.base.Joiner;
>         TestBlockReportRateLimiting.java  (1 usage found)
>             24 import com.google.common.base.Joiner;
>         TestPendingDataNodeMessages.java  (1 usage found)
>             41 import com.google.common.base.Joiner;
>     org.apache.hadoop.hdfs.server.common  (1 usage found)
>         StorageInfo.java  (1 usage found)
>             37 import com.google.common.base.Joiner;
>     org.apache.hadoop.hdfs.server.datanode  (7 usages found)
>         BlockPoolManager.java  (1 usage found)
>             32 import com.google.common.base.Joiner;
>         BlockRecoveryWorker.java  (1 usage found)
>             21 import com.google.common.base.Joiner;
>         BPServiceActor.java  (1 usage found)
>             75 import com.google.common.base.Joiner;
>         DataNode.java  (1 usage found)
>             226 import com.google.common.base.Joiner;
>         ShortCircuitRegistry.java  (1 usage found)
>             49 import com.google.common.base.Joiner;
>         TestDataNodeHotSwapVolumes.java  (1 usage found)
>             21 import com.google.common.base.Joiner;
>         TestRefreshNamenodes.java  (1 usage found)
>             35 import com.google.common.base.Joiner;
>     org.apache.hadoop.hdfs.server.datanode.fsdataset.impl  (1 usage found)
>         FsVolumeImpl.java  (1 usage found)
>             90 import com.google.common.base.Joiner;
>     org.apache.hadoop.hdfs.server.namenode  (13 usages found)
>         FileJournalManager.java  (1 usage found)
>             49 import com.google.common.base.Joiner;
>         FSDirectory.java  (1 usage found)
>             24 import com.google.common.base.Joiner;
>         FSEditLogLoader.java  (1 usage found)
>             120 import com.google.common.base.Joiner;
>         FSEditLogOp.java  (1 usage found)
>             141 import com.google.common.base.Joiner;
>         FSImage.java  (1 usage found)
>             78 import com.google.common.base.Joiner;
>         FSImageTestUtil.java  (1 usage found)
>             66 import com.google.common.base.Joiner;
>         NameNode.java  (1 usage found)
>             21 import com.google.common.base.Joiner;
>         TestAuditLogAtDebug.java  (1 usage found)
>             21 import com.google.common.base.Joiner;
>         TestCheckpoint.java  (1 usage found)
>             97 import com.google.common.base.Joiner;
>         TestFileJournalManager.java  (1 usage found)
>             52 import com.google.common.base.Joiner;
>         TestNNStorageRetentionFunctional.java  (1 usage found)
>             39 import com.google.common.base.Joiner;
>         TestNNStorageRetentionManager.java  (1 usage found)
>             53 import com.google.common.base.Joiner;
>         TestProtectedDirectories.java  (1 usage found)
>             21 import com.google.common.base.Joiner;
>     org.apache.hadoop.hdfs.server.namenode.ha  (9 usages found)
>         BootstrapStandby.java  (1 usage found)
>             73 import com.google.common.base.Joiner;
>         HATestUtil.java  (1 usage found)
>             41 import com.google.common.base.Joiner;
>         TestDelegationTokensWithHA.java  (1 usage found)
>             20 import com.google.common.base.Joiner;
>         TestDFSUpgradeWithHA.java  (1 usage found)
>             56 import com.google.common.base.Joiner;
>         TestEditLogsDuringFailover.java  (1 usage found)
>             47 import com.google.common.base.Joiner;
>         TestFailureOfSharedDir.java  (1 usage found)
>             48 import com.google.common.base.Joiner;
>         TestHAConfiguration.java  (1 usage found)
>             34 import com.google.common.base.Joiner;
>         TestObserverReadProxyProvider.java  (1 usage found)
>             20 import com.google.common.base.Joiner;
>         TestStandbyInProgressTail.java  (1 usage found)
>             51 import com.google.common.base.Joiner;
>     org.apache.hadoop.hdfs.server.protocol  (3 usages found)
>         BlockECReconstructionCommand.java  (1 usage found)
>             20 import com.google.common.base.Joiner;
>         BlockRecoveryCommand.java  (1 usage found)
>             31 import com.google.common.base.Joiner;
>         RemoteEditLogManifest.java  (1 usage found)
>             23 import com.google.common.base.Joiner;
>     org.apache.hadoop.hdfs.tools  (5 usages found)
>         CacheAdmin.java  (1 usage found)
>             47 import com.google.common.base.Joiner;
>         DFSAdmin.java  (1 usage found)
>             41 import com.google.common.base.Joiner;
>         TestDFSHAAdmin.java  (1 usage found)
>             52 import com.google.common.base.Joiner;
>         TestDFSHAAdminMiniCluster.java  (1 usage found)
>             47 import com.google.common.base.Joiner;
>         TestGetConf.java  (1 usage found)
>             61 import com.google.common.base.Joiner;
>     org.apache.hadoop.hdfs.util  (1 usage found)
>         TestAtomicFileOutputStream.java  (1 usage found)
>             41 import com.google.common.base.Joiner;
>     org.apache.hadoop.io.compress  (1 usage found)
>         CompressDecompressTester.java  (1 usage found)
>             42 import com.google.common.base.Joiner;
>     org.apache.hadoop.ipc  (3 usages found)
>         ProxyCombiner.java  (1 usage found)
>             20 import com.google.common.base.Joiner;
>         RefreshRegistry.java  (1 usage found)
>             23 import com.google.common.base.Joiner;
>         RPCCallBenchmark.java  (1 usage found)
>             20 import com.google.common.base.Joiner;
>     org.apache.hadoop.mapreduce.counters  (1 usage found)
>         FileSystemCounterGroup.java  (1 usage found)
>             30 import com.google.common.base.Joiner;
>     org.apache.hadoop.mapreduce.jobhistory  (1 usage found)
>         JobUnsuccessfulCompletionEvent.java  (1 usage found)
>             32 import com.google.common.base.Joiner;
>     org.apache.hadoop.mapreduce.v2.app.webapp  (1 usage found)
>         AppController.java  (1 usage found)
>             44 import com.google.common.base.Joiner;
>     org.apache.hadoop.mapreduce.v2.util  (1 usage found)
>         MRWebAppUtil.java  (1 usage found)
>             20 import com.google.common.base.Joiner;
>     org.apache.hadoop.metrics2.impl  (1 usage found)
>         MetricsConfig.java  (1 usage found)
>             32 import com.google.common.base.Joiner;
>     org.apache.hadoop.metrics2.lib  (1 usage found)
>         UniqueNames.java  (1 usage found)
>             23 import com.google.common.base.Joiner;
>     org.apache.hadoop.metrics2.util  (1 usage found)
>         SampleQuantiles.java  (1 usage found)
>             30 import com.google.common.base.Joiner;
>     org.apache.hadoop.security  (1 usage found)
>         ShellBasedUnixGroupsMapping.java  (1 usage found)
>             27 import com.google.common.base.Joiner;
>     org.apache.hadoop.test  (1 usage found)
>         GenericTestUtils.java  (1 usage found)
>             63 import com.google.common.base.Joiner;
>     org.apache.hadoop.tools.dynamometer  (3 usages found)
>         ApplicationMaster.java  (1 usage found)
>             20 import com.google.common.base.Joiner;
>         Client.java  (1 usage found)
>             21 import com.google.common.base.Joiner;
>         DynoInfraUtils.java  (1 usage found)
>             20 import com.google.common.base.Joiner;
>     org.apache.hadoop.util  (1 usage found)
>         JvmPauseMonitor.java  (1 usage found)
>             31 import com.google.common.base.Joiner;
>     org.apache.hadoop.yarn.applications.distributedshell  (1 usage found)
>         Client.java  (1 usage found)
>             36 import com.google.common.base.Joiner;
>     org.apache.hadoop.yarn.client  (1 usage found)
>         ClientRMProxy.java  (1 usage found)
>             44 import com.google.common.base.Joiner;
>     org.apache.hadoop.yarn.client.api.impl  (2 usages found)
>         AMRMClientImpl.java  (1 usage found)
>             83 import com.google.common.base.Joiner;
>         TimelineConnector.java  (1 usage found)
>             56 import com.google.common.base.Joiner;
>     org.apache.hadoop.yarn.client.cli  (1 usage found)
>         TestNodeAttributesCLI.java  (1 usage found)
>             64 import com.google.common.base.Joiner;
>     org.apache.hadoop.yarn.server.nodemanager.amrmproxy  (1 usage found)
>         DefaultRequestInterceptor.java  (1 usage found)
>             25 import com.google.common.base.Joiner;
>     
> org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources  
> (1 usage found)
>         CGroupsHandlerImpl.java  (1 usage found)
>             24 import com.google.common.base.Joiner;
>     org.apache.hadoop.yarn.server.nodemanager.health  (2 usages found)
>         NodeHealthCheckerService.java  (1 usage found)
>             22 import com.google.common.base.Joiner;
>         TestNodeHealthCheckerService.java  (1 usage found)
>             31 import com.google.common.base.Joiner;
>     org.apache.hadoop.yarn.server.resourcemanager.recovery  (1 usage found)
>         TestZKRMStateStore.java  (1 usage found)
>             74 import com.google.common.base.Joiner;
>     org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.conf  (1 
> usage found)
>         MutableCSConfigurationProvider.java  (1 usage found)
>             22 import com.google.common.base.Joiner;
>     org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.policies  (1 
> usage found)
>         TestDominantResourceFairnessPolicy.java  (1 usage found)
>             32 import org.apache.curator.shaded.com.google.common.base.Joiner;
>     org.apache.hadoop.yarn.server.resourcemanager.webapp  (1 usage found)
>         TestRMWebServicesNodes.java  (1 usage found)
>             100 import com.google.common.base.Joiner;
>     org.apache.hadoop.yarn.server.resourcemanager.webapp.dao  (1 usage found)
>         AppInfo.java  (1 usage found)
>             54 import com.google.common.base.Joiner;
>     org.apache.hadoop.yarn.server.webapp  (3 usages found)
>         LogServlet.java  (1 usage found)
>             22 import com.google.common.base.Joiner;
>         LogWebService.java  (1 usage found)
>             22 import com.google.common.base.Joiner;
>         LogWebServiceUtils.java  (1 usage found)
>             21 import com.google.common.base.Joiner;
>     org.apache.hadoop.yarn.service.webapp  (1 usage found)
>         ApiServer.java  (1 usage found)
>             20 import com.google.common.base.Joiner;
>     org.apache.hadoop.yarn.util  (1 usage found)
>         StringHelper.java  (1 usage found)
>             21 import com.google.common.base.Joiner;
>     org.apache.hadoop.yarn.webapp.hamlet  (1 usage found)
>         HamletImpl.java  (1 usage found)
>             21 import com.google.common.base.Joiner;
>     org.apache.hadoop.yarn.webapp.hamlet2  (1 usage found)
>         HamletImpl.java  (1 usage found)
>             21 import com.google.common.base.Joiner;
>     org.apache.hadoop.yarn.webapp.view  (1 usage found)
>         DefaultPage.java  (1 usage found)
>             21 import com.google.common.base.Joiner;
> {code}



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