Remove useless import.

Author: TaoYang526

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMHAForAsyncScheduler.java

@@ -29,18 +29,16 @@
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerConfiguration;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.TestCapacitySchedulerAsyncScheduling;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.TestUtils;
 import org.apache.hadoop.yarn.util.resource.DominantResourceCalculator;
 import org.apache.hadoop.yarn.util.resource.ResourceCalculator;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
-import org.junit.contrib.java.lang.system.internal.NoExitSecurityManager;
 
 import java.util.Arrays;
 import java.util.List;
 
-import static org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.TestUtils.waitForUntilTimeout;
-
 public class TestRMHAForAsyncScheduler extends RMHATestBase {
   private TestCapacitySchedulerAsyncScheduling.NMHeartbeatThread
       nmHeartbeatThread = null;
@@ -156,7 +154,7 @@ public void testAsyncScheduleThreadExit() throws Exception {
       checkAsyncSchedulerThreads(Thread.currentThread());
 
       // wait for RM to be shutdown until timeout
-      boolean done = waitForUntilTimeout(
+      boolean done = TestUtils.waitForUntilTimeout(
           () -> rm1.getRMContext().getHAServiceState()
               == HAServiceProtocol.HAServiceState.STANDBY, 100, 5000);
       Assert.assertTrue(
@@ -169,7 +167,7 @@ public void testAsyncScheduleThreadExit() throws Exception {
               HAServiceProtocol.RequestSource.REQUEST_BY_USER);
       rm2.adminService.transitionToStandby(requestInfo);
       rm1.adminService.transitionToActive(requestInfo);
-      done = waitForUntilTimeout(
+      done = TestUtils.waitForUntilTimeout(
           () -> rm1.getRMContext().getHAServiceState()
               == HAServiceProtocol.HAServiceState.ACTIVE, 100, 5000);
       Assert.assertTrue(

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestCapacitySchedulerAsyncScheduling.java

@@ -18,7 +18,6 @@
 
 package org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity;
 
-import org.apache.hadoop.ha.HAServiceProtocol;
 import org.apache.hadoop.thirdparty.com.google.common.collect.ImmutableList;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.yarn.api.records.Container;
@@ -65,11 +64,9 @@
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.placement.SimpleCandidateNodeSet;
 import org.apache.hadoop.yarn.server.scheduler.SchedulerRequestKey;
 import org.apache.hadoop.yarn.util.resource.Resources;
-import org.jline.utils.Log;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
-import org.junit.contrib.java.lang.system.ExpectedSystemExit;
 import org.junit.contrib.java.lang.system.internal.NoExitSecurityManager;
 import org.mockito.Mockito;
 import org.mockito.invocation.InvocationOnMock;
@@ -80,10 +77,6 @@
 import java.util.List;
 import java.util.concurrent.atomic.AtomicBoolean;
 
-import static org.apache.hadoop.service.Service.STATE.STOPPED;
-import static org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.TestUtils.waitForUntilTimeout;
-import static org.mockito.Mockito.doThrow;
-
 public class TestCapacitySchedulerAsyncScheduling {
   private final int GB = 1024;
 
@@ -1103,7 +1096,7 @@ public void testAsyncScheduleThreadExit() throws Exception {
       cs.setResourceCalculator(null);
 
       // wait for RM to be shutdown until timeout
-      boolean done = waitForUntilTimeout(
+      boolean done = TestUtils.waitForUntilTimeout(
           noExitSecurityManager::isCheckExitCalled, 100, 5000);
       Assert.assertTrue("RM should be shut down, but nothing happened", done);
     } finally {