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Posted to common-issues@hadoop.apache.org by "Ahmed Hussein (Jira)" <ji...@apache.org> on 2020/07/01 03:44:00 UTC

[jira] [Updated] (HADOOP-17106) Replace Guava Joiner with Java8 String Join

     [ https://issues.apache.org/jira/browse/HADOOP-17106?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ahmed Hussein updated HADOOP-17106:
-----------------------------------
    Description: 
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}

  was:
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}


> 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
>
> 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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