YARN-11258. [JDK17] Upgrade JUnit from 4 to 5 in hadoop-yarn-server-common.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/store/impl/ZKFederationStateStoreOpDurations.java

@@ -18,6 +18,7 @@
 
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.classification.InterfaceStability;
+import org.apache.hadoop.classification.VisibleForTesting;
 import org.apache.hadoop.metrics2.MetricsCollector;
 import org.apache.hadoop.metrics2.MetricsInfo;
 import org.apache.hadoop.metrics2.MetricsSource;
@@ -236,4 +237,9 @@ public void removeStoredTokenDuration(long startTime, long endTime) {
   public void getTokenByRouterStoreTokenDuration(long startTime, long endTime) {
     getTokenByRouterStoreToken.add(endTime - startTime);
   }
+
+  @VisibleForTesting
+  protected ZKFederationStateStoreOpDurations resetOpDurations() {
+    return new ZKFederationStateStoreOpDurations();
+  }
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/store/impl/ZookeeperFederationStateStore.java

@@ -2095,4 +2095,9 @@ private List<ApplicationHomeSubCluster> loadRouterApplications() throws Exceptio
     }
     return applicationHomeSubClusters;
   }
+
+  @VisibleForTesting
+  public void resetOpDurations() {
+    opDurations = opDurations.resetOpDurations();
+  }
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/test/java/org/apache/hadoop/yarn/TestRPC.java

@@ -83,8 +83,12 @@
 import org.apache.hadoop.yarn.server.api.protocolrecords.ReportNewCollectorInfoResponse;
 import org.apache.hadoop.yarn.server.api.records.AppCollectorData;
 import org.apache.hadoop.yarn.util.Records;
-import org.junit.Assert;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
 
 public class TestRPC {
 
@@ -136,9 +140,9 @@ public void testUnknownCall() {
     try {
       proxy.getNewApplication(Records
           .newRecord(GetNewApplicationRequest.class));
-      Assert.fail("Excepted RPC call to fail with unknown method.");
+      fail("Excepted RPC call to fail with unknown method.");
     } catch (YarnException e) {
-      Assert.assertTrue(e.getMessage().matches(
+      assertTrue(e.getMessage().matches(
           "Unknown method getNewApplication called on.*"
               + "org.apache.hadoop.yarn.proto.ApplicationClientProtocol"
               + "\\$ApplicationClientProtocolService\\$BlockingInterface "
@@ -171,9 +175,9 @@ public void testRPCOnCollectorNodeManagerProtocol() throws IOException {
     try {
       unknownProxy.getNewApplication(Records
           .newRecord(GetNewApplicationRequest.class));
-      Assert.fail("Excepted RPC call to fail with unknown method.");
+      fail("Excepted RPC call to fail with unknown method.");
     } catch (YarnException e) {
-      Assert.assertTrue(e.getMessage().matches(
+      assertTrue(e.getMessage().matches(
           "Unknown method getNewApplication called on.*"
               + "org.apache.hadoop.yarn.proto.ApplicationClientProtocol"
               + "\\$ApplicationClientProtocolService\\$BlockingInterface "
@@ -195,7 +199,7 @@ public void testRPCOnCollectorNodeManagerProtocol() throws IOException {
               DEFAULT_APP_ID, DEFAULT_COLLECTOR_ADDR, null);
       proxy.reportNewCollectorInfo(request);
     } catch (YarnException e) {
-      Assert.fail("RPC call failured is not expected here.");
+      fail("RPC call failured is not expected here.");
     }
 
     try {
@@ -204,17 +208,17 @@ public void testRPCOnCollectorNodeManagerProtocol() throws IOException {
               DEFAULT_APP_ID, DEFAULT_COLLECTOR_ADDR, DEFAULT_COLLECTOR_TOKEN);
       proxy.reportNewCollectorInfo(request);
     } catch (YarnException e) {
-      Assert.fail("RPC call failured is not expected here.");
+      fail("RPC call failured is not expected here.");
     }
 
     // Verify empty request get YarnException back (by design in
     // DummyNMCollectorService)
     try {
       proxy.reportNewCollectorInfo(Records
           .newRecord(ReportNewCollectorInfoRequest.class));
-      Assert.fail("Excepted RPC call to fail with YarnException.");
+      fail("Excepted RPC call to fail with YarnException.");
     } catch (YarnException e) {
-      Assert.assertTrue(e.getMessage().contains(ILLEGAL_NUMBER_MESSAGE));
+      assertTrue(e.getMessage().contains(ILLEGAL_NUMBER_MESSAGE));
     }
 
     // Verify request with a valid app ID
@@ -224,12 +228,12 @@ public void testRPCOnCollectorNodeManagerProtocol() throws IOException {
               ApplicationId.newInstance(0, 1));
       GetTimelineCollectorContextResponse response =
           proxy.getTimelineCollectorContext(request);
-      Assert.assertEquals("test_user_id", response.getUserId());
-      Assert.assertEquals("test_flow_name", response.getFlowName());
-      Assert.assertEquals("test_flow_version", response.getFlowVersion());
-      Assert.assertEquals(12345678L, response.getFlowRunId());
+      assertEquals("test_user_id", response.getUserId());
+      assertEquals("test_flow_name", response.getFlowName());
+      assertEquals("test_flow_version", response.getFlowVersion());
+      assertEquals(12345678L, response.getFlowRunId());
     } catch (YarnException | IOException e) {
-      Assert.fail("RPC call failured is not expected here.");
+      fail("RPC call failured is not expected here.");
     }
 
     // Verify request with an invalid app ID
@@ -238,10 +242,10 @@ public void testRPCOnCollectorNodeManagerProtocol() throws IOException {
           GetTimelineCollectorContextRequest.newInstance(
               ApplicationId.newInstance(0, 2));
       proxy.getTimelineCollectorContext(request);
-      Assert.fail("RPC call failured is expected here.");
+      fail("RPC call failured is expected here.");
     } catch (YarnException | IOException e) {
-      Assert.assertTrue(e instanceof  YarnException);
-      Assert.assertTrue(e.getMessage().contains(
+      assertTrue(e instanceof  YarnException);
+      assertTrue(e.getMessage().contains(
           "The application is not found."));
     }
     server.stop();
@@ -309,17 +313,17 @@ private void test(String rpcClass) throws Exception {
       proxy.stopContainers(stopRequest);
     } catch (YarnException e) {
       exception = true;
-      Assert.assertTrue(e.getMessage().contains(EXCEPTION_MSG));
-      Assert.assertTrue(e.getMessage().contains(EXCEPTION_CAUSE));
+      assertTrue(e.getMessage().contains(EXCEPTION_MSG));
+      assertTrue(e.getMessage().contains(EXCEPTION_CAUSE));
       System.out.println("Test Exception is " + e.getMessage());
     } catch (Exception ex) {
       ex.printStackTrace();
     } finally {
       server.stop();
     }
-    Assert.assertTrue(exception);
-    Assert.assertNotNull(statuses.get(0));
-    Assert.assertEquals(ContainerState.RUNNING, statuses.get(0).getState());
+    assertTrue(exception);
+    assertNotNull(statuses.get(0));
+    assertEquals(ContainerState.RUNNING, statuses.get(0).getState());
   }
 
   public class DummyContainerManager implements ContainerManagementProtocol {
@@ -468,11 +472,11 @@ public ReportNewCollectorInfoResponse reportNewCollectorInfo(
       if (appCollectors.size() == 1) {
         // check default appID and collectorAddr
         AppCollectorData appCollector = appCollectors.get(0);
-        Assert.assertEquals(appCollector.getApplicationId(),
+        assertEquals(appCollector.getApplicationId(),
             DEFAULT_APP_ID);
-        Assert.assertEquals(appCollector.getCollectorAddr(),
+        assertEquals(appCollector.getCollectorAddr(),
             DEFAULT_COLLECTOR_ADDR);
-        Assert.assertTrue(appCollector.getCollectorToken() == null ||
+        assertTrue(appCollector.getCollectorToken() == null ||
             appCollector.getCollectorToken().equals(DEFAULT_COLLECTOR_TOKEN));
       } else {
         throw new YarnException(ILLEGAL_NUMBER_MESSAGE);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/test/java/org/apache/hadoop/yarn/TestResourceTrackerPBClientImpl.java

@@ -35,11 +35,13 @@
 import org.apache.hadoop.yarn.server.api.protocolrecords.RegisterNodeManagerResponse;
 import org.apache.hadoop.yarn.server.api.protocolrecords.UnRegisterNodeManagerRequest;
 import org.apache.hadoop.yarn.server.api.protocolrecords.UnRegisterNodeManagerResponse;
-import org.junit.AfterClass;
-import org.junit.BeforeClass;
-import org.junit.Test;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
 
-import static org.junit.Assert.*;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
 
 /**
  * Test ResourceTrackerPBClientImpl. this class should have methods
@@ -52,7 +54,7 @@ public class TestResourceTrackerPBClientImpl {
   private final static org.apache.hadoop.yarn.factories.RecordFactory recordFactory = RecordFactoryProvider
       .getRecordFactory(null);
 
-  @BeforeClass
+  @BeforeAll
   public static void start() {
     InetSocketAddress address = new InetSocketAddress(0);
     Configuration configuration = new Configuration();
@@ -67,7 +69,7 @@ public static void start() {
 
   }
 
-  @AfterClass
+  @AfterAll
   public static void stop() {
     if (server != null) {
       server.stop();

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/test/java/org/apache/hadoop/yarn/TestYSCRPCFactories.java

@@ -21,8 +21,6 @@
 import java.io.IOException;
 import java.net.InetSocketAddress;
 
-import org.junit.Assert;
-
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.ipc.Server;
 import org.apache.hadoop.net.NetUtils;
@@ -37,7 +35,9 @@
 import org.apache.hadoop.yarn.server.api.protocolrecords.RegisterNodeManagerResponse;
 import org.apache.hadoop.yarn.server.api.protocolrecords.UnRegisterNodeManagerRequest;
 import org.apache.hadoop.yarn.server.api.protocolrecords.UnRegisterNodeManagerResponse;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.fail;
 
 public class TestYSCRPCFactories {
 
@@ -64,7 +64,7 @@ private void testPbServerFactory() {
       server.start();
     } catch (YarnRuntimeException e) {
       e.printStackTrace();
-      Assert.fail("Failed to create server");
+      fail("Failed to create server");
     } finally {
       server.stop();
     }
@@ -90,12 +90,12 @@ private void testPbClientFactory() {
         client = (ResourceTracker) RpcClientFactoryPBImpl.get().getClient(ResourceTracker.class, 1, NetUtils.getConnectAddress(server), conf);
       } catch (YarnRuntimeException e) {
         e.printStackTrace();
-        Assert.fail("Failed to create client");
+        fail("Failed to create client");
       }
 
     } catch (YarnRuntimeException e) {
       e.printStackTrace();
-      Assert.fail("Failed to create server");
+      fail("Failed to create server");
     } finally {
       server.stop();
     }     

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/test/java/org/apache/hadoop/yarn/TestYSCRecordFactory.java

@@ -18,14 +18,15 @@
 
 package org.apache.hadoop.yarn;
 
-import org.junit.Assert;
-
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
 import org.apache.hadoop.yarn.factories.RecordFactory;
 import org.apache.hadoop.yarn.factories.impl.pb.RecordFactoryPBImpl;
 import org.apache.hadoop.yarn.server.api.protocolrecords.NodeHeartbeatRequest;
 import org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb.NodeHeartbeatRequestPBImpl;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.fail;
 
 public class TestYSCRecordFactory {
 
@@ -34,10 +35,10 @@ public void testPbRecordFactory() {
     RecordFactory pbRecordFactory = RecordFactoryPBImpl.get();
     try {
       NodeHeartbeatRequest request = pbRecordFactory.newRecordInstance(NodeHeartbeatRequest.class);
-      Assert.assertEquals(NodeHeartbeatRequestPBImpl.class, request.getClass());
+      assertEquals(NodeHeartbeatRequestPBImpl.class, request.getClass());
     } catch (YarnRuntimeException e) {
       e.printStackTrace();
-      Assert.fail("Failed to crete record");
+      fail("Failed to crete record");
     }
 
   }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/test/java/org/apache/hadoop/yarn/TestYarnServerApiClasses.java

@@ -18,9 +18,11 @@
 
 package org.apache.hadoop.yarn;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.io.IOException;
 import java.nio.ByteBuffer;
@@ -63,8 +65,7 @@
 import org.apache.hadoop.yarn.server.api.records.impl.pb.MasterKeyPBImpl;
 import org.apache.hadoop.yarn.server.api.records.impl.pb.NodeStatusPBImpl;
 import org.apache.hadoop.yarn.server.utils.YarnServerBuilderUtils;
-import org.junit.Assert;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Simple test classes from org.apache.hadoop.yarn.server.api
@@ -127,14 +128,14 @@ public void testNodeHeartbeatRequestPBImpl() {
     assertEquals("localhost", copy.getNodeStatus().getNodeId().getHost());
     assertEquals(collectors, copy.getRegisteringCollectors());
     // check labels are coming with valid values
-    Assert.assertTrue(original.getNodeLabels()
+    assertTrue(original.getNodeLabels()
         .containsAll(copy.getNodeLabels()));
     // check for empty labels
     original.setNodeLabels(new HashSet<NodeLabel> ());
     copy = new NodeHeartbeatRequestPBImpl(
         original.getProto());
-    Assert.assertNotNull(copy.getNodeLabels());
-    Assert.assertEquals(0, copy.getNodeLabels().size());
+    assertNotNull(copy.getNodeLabels());
+    assertEquals(0, copy.getNodeLabels().size());
   }
 
   @Test
@@ -155,7 +156,7 @@ public void testNodeHeartbeatRequestPBImplWithNullLabels() {
     NodeHeartbeatRequestPBImpl original = new NodeHeartbeatRequestPBImpl();
     NodeHeartbeatRequestPBImpl copy =
         new NodeHeartbeatRequestPBImpl(original.getProto());
-    Assert.assertNull(copy.getNodeLabels());
+    assertNull(copy.getNodeLabels());
   }
 
   /**
@@ -218,7 +219,7 @@ public void testNodeHeartbeatResponsePBImpl() throws IOException {
         YarnServerBuilderUtils
             .convertFromProtoFormat(copy.getSystemCredentialsForApps())
             .get(getApplicationId(1));
-    Assert.assertNotNull(buffer);
+    assertNotNull(buffer);
     buffer.rewind();
     buf.reset(buffer);
     credentials1Out.readTokenStorageStream(buf);
@@ -370,7 +371,7 @@ public void testRegisterNodeManagerRequestWithNullLabels() {
             ((RegisterNodeManagerRequestPBImpl) request).getProto());
 
     // check labels are coming with no values
-    Assert.assertNull(request1.getNodeLabels());
+    assertNull(request1.getNodeLabels());
   }
 
   @Test
@@ -387,14 +388,14 @@ public void testRegisterNodeManagerRequestWithValidLabels() {
             ((RegisterNodeManagerRequestPBImpl) request).getProto());
 
     // check labels are coming with valid values
-    Assert.assertEquals(true, nodeLabels.containsAll(copy.getNodeLabels()));
+    assertEquals(true, nodeLabels.containsAll(copy.getNodeLabels()));
 
     // check for empty labels
     request.setNodeLabels(new HashSet<NodeLabel> ());
     copy = new RegisterNodeManagerRequestPBImpl(
         ((RegisterNodeManagerRequestPBImpl) request).getProto());
-    Assert.assertNotNull(copy.getNodeLabels());
-    Assert.assertEquals(0, copy.getNodeLabels().size());
+    assertNotNull(copy.getNodeLabels());
+    assertEquals(0, copy.getNodeLabels().size());
   }
 
   @Test
@@ -405,7 +406,7 @@ public void testUnRegisterNodeManagerRequestPBImpl() throws Exception {
 
     UnRegisterNodeManagerRequestPBImpl copy = new UnRegisterNodeManagerRequestPBImpl(
         request.getProto());
-    Assert.assertEquals(nodeId, copy.getNodeId());
+    assertEquals(nodeId, copy.getNodeId());
   }
 
   private HashSet<NodeLabel> getValidNodeLabels() {