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ctubbsii pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/accumulo.git


The following commit(s) were added to refs/heads/main by this push:
     new ccc0a7a  Convert tserver module tests from JUnit4 to JUnit5  (#2565)
ccc0a7a is described below

commit ccc0a7a815394fb958f09e143e02b194de2eadc4
Author: Dom G <dominic.gargu...@gmail.com>
AuthorDate: Tue Mar 15 13:07:38 2022 -0400

    Convert tserver module tests from JUnit4 to JUnit5  (#2565)
---
 server/tserver/pom.xml                             |  4 +-
 .../accumulo/tserver/AssignmentWatcherTest.java    |  6 +-
 .../accumulo/tserver/BusiestTrackerTest.java       |  6 +-
 .../accumulo/tserver/CheckTabletMetadataTest.java  |  8 +--
 .../accumulo/tserver/CountingIteratorTest.java     |  4 +-
 .../apache/accumulo/tserver/InMemoryMapTest.java   | 83 ++++++++++++----------
 .../org/apache/accumulo/tserver/MemValueTest.java  |  4 +-
 .../tserver/TabletResourceManagerTest.java         |  8 +--
 .../tserver/TabletServerSyncCheckTest.java         |  4 +-
 .../accumulo/tserver/TservConstraintEnvTest.java   |  6 +-
 .../accumulo/tserver/WalRemovalOrderTest.java      |  4 +-
 .../{MemValueTest.java => WithTestNames.java}      | 28 +++++---
 .../tserver/compaction/CompactableUtilsTest.java   |  4 +-
 .../tserver/compaction/CompactionPlanTest.java     |  4 +-
 .../compaction/DefaultCompactionStrategyTest.java  |  6 +-
 .../SizeLimitCompactionStrategyTest.java           |  8 +--
 .../tserver/compaction/SizeWindowTest.java         |  6 +-
 .../strategies/BasicCompactionStrategyTest.java    | 14 ++--
 .../ConfigurableCompactionStrategyTest.java        |  6 +-
 .../tserver/constraints/ConstraintCheckerTest.java | 10 +--
 .../apache/accumulo/tserver/log/DfsLoggerTest.java |  4 +-
 .../apache/accumulo/tserver/log/LogEventsTest.java |  4 +-
 .../accumulo/tserver/log/LogFileKeyTest.java       | 10 +--
 .../tserver/log/RecoveryLogsIteratorTest.java      | 53 +++++++-------
 .../tserver/log/SortedLogRecoveryTest.java         | 31 ++++----
 .../tserver/log/TestUpgradePathForWALogs.java      | 46 ++++++------
 .../accumulo/tserver/logger/LogFileTest.java       |  6 +-
 .../memory/LargestFirstMemoryManagerTest.java      | 14 ++--
 .../replication/AccumuloReplicaSystemTest.java     | 12 ++--
 .../BatchWriterReplicationReplayerTest.java        | 10 +--
 .../replication/ReplicationProcessorTest.java      |  6 +-
 .../tablet/CompactableImplFileManagerTest.java     | 10 +--
 .../tserver/tablet/CompactableImplTest.java        |  6 +-
 .../tablet/TabletMutationPrepAttemptTest.java      | 10 +--
 .../apache/accumulo/tserver/tablet/TabletTest.java |  4 +-
 35 files changed, 232 insertions(+), 217 deletions(-)

diff --git a/server/tserver/pom.xml b/server/tserver/pom.xml
index be5747f..2f62cad 100644
--- a/server/tserver/pom.xml
+++ b/server/tserver/pom.xml
@@ -120,8 +120,8 @@
       <scope>test</scope>
     </dependency>
     <dependency>
-      <groupId>org.junit.vintage</groupId>
-      <artifactId>junit-vintage-engine</artifactId>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-api</artifactId>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/AssignmentWatcherTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/AssignmentWatcherTest.java
index bf55357..2680868 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/AssignmentWatcherTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/AssignmentWatcherTest.java
@@ -30,8 +30,8 @@ import org.apache.accumulo.core.dataImpl.KeyExtent;
 import org.apache.accumulo.server.ServerContext;
 import 
org.apache.accumulo.tserver.TabletServerResourceManager.AssignmentWatcher;
 import org.easymock.EasyMock;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 public class AssignmentWatcherTest {
 
@@ -40,7 +40,7 @@ public class AssignmentWatcherTest {
   private AccumuloConfiguration conf;
   private AssignmentWatcher watcher;
 
-  @Before
+  @BeforeEach
   public void setup() {
     assignments = new HashMap<>();
     context = EasyMock.createMock(ServerContext.class);
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/BusiestTrackerTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/BusiestTrackerTest.java
index 2404c54..26e04e3 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/BusiestTrackerTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/BusiestTrackerTest.java
@@ -21,8 +21,8 @@ package org.apache.accumulo.tserver;
 import static org.easymock.EasyMock.createMock;
 import static org.easymock.EasyMock.expect;
 import static org.easymock.EasyMock.replay;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -34,7 +34,7 @@ import org.apache.accumulo.core.data.TableId;
 import org.apache.accumulo.core.dataImpl.KeyExtent;
 import org.apache.accumulo.core.util.ComparablePair;
 import org.apache.accumulo.tserver.tablet.Tablet;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import com.google.common.base.Preconditions;
 
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/CheckTabletMetadataTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/CheckTabletMetadataTest.java
index 4bc8f89..1acc509 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/CheckTabletMetadataTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/CheckTabletMetadataTest.java
@@ -19,9 +19,9 @@
 package org.apache.accumulo.tserver;
 
 import static 
org.apache.accumulo.tserver.AssignmentHandler.checkTabletMetadata;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.EnumSet;
 import java.util.TreeMap;
@@ -39,7 +39,7 @@ import 
org.apache.accumulo.core.metadata.schema.TabletMetadata;
 import org.apache.accumulo.core.metadata.schema.TabletMetadata.ColumnType;
 import org.apache.accumulo.core.util.ColumnFQ;
 import org.apache.hadoop.io.Text;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class CheckTabletMetadataTest {
 
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/CountingIteratorTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/CountingIteratorTest.java
index 6594e91..a799ff7 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/CountingIteratorTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/CountingIteratorTest.java
@@ -18,7 +18,7 @@
  */
 package org.apache.accumulo.tserver;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.io.IOException;
 import java.util.HashSet;
@@ -30,7 +30,7 @@ import org.apache.accumulo.core.data.Range;
 import org.apache.accumulo.core.data.Value;
 import org.apache.accumulo.core.iteratorsImpl.system.SortedMapIterator;
 import org.apache.accumulo.server.compaction.CountingIterator;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class CountingIteratorTest {
 
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/InMemoryMapTest.java 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/InMemoryMapTest.java
index 61956ca..8e91271 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/InMemoryMapTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/InMemoryMapTest.java
@@ -18,10 +18,10 @@
  */
 package org.apache.accumulo.tserver;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertThrows;
-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.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.io.File;
 import java.io.IOException;
@@ -57,20 +57,18 @@ import 
org.apache.accumulo.core.iteratorsImpl.system.IterationInterruptedExcepti
 import org.apache.accumulo.core.sample.impl.SamplerConfigurationImpl;
 import org.apache.accumulo.core.sample.impl.SamplerFactory;
 import org.apache.accumulo.core.util.LocalityGroupUtil;
-import 
org.apache.accumulo.core.util.LocalityGroupUtil.LocalityGroupConfigurationError;
 import org.apache.accumulo.server.ServerContext;
 import org.apache.accumulo.tserver.InMemoryMap.MemoryIterator;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.io.Text;
 import org.easymock.EasyMock;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.TemporaryFolder;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
 
 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 
 @SuppressFBWarnings(value = "PATH_TRAVERSAL_IN", justification = "paths not 
set by user input")
-public class InMemoryMapTest {
+public class InMemoryMapTest extends WithTestNames {
 
   private static class SampleIE implements IteratorEnvironment {
 
@@ -107,9 +105,8 @@ public class InMemoryMapTest {
     return context;
   }
 
-  @Rule
-  public TemporaryFolder tempFolder =
-      new TemporaryFolder(new File(System.getProperty("user.dir") + 
"/target"));
+  @TempDir
+  private static File tempDir;
 
   public void mutate(InMemoryMap imm, String row, String column, long ts, 
String value) {
     Mutation m = new Mutation(new Text(row));
@@ -164,8 +161,7 @@ public class InMemoryMapTest {
     return config;
   }
 
-  static InMemoryMap newInMemoryMap(boolean useNative, String memDumpDir)
-      throws LocalityGroupConfigurationError {
+  static InMemoryMap newInMemoryMap(boolean useNative, String memDumpDir) {
     ConfigurationCopy config = new 
ConfigurationCopy(DefaultConfiguration.getInstance());
     config.set(Property.TSERV_NATIVEMAP_ENABLED, "" + useNative);
     config.set(Property.TSERV_MEMDUMP_DIR, memDumpDir);
@@ -174,7 +170,7 @@ public class InMemoryMapTest {
 
   @Test
   public void test2() throws Exception {
-    InMemoryMap imm = newInMemoryMap(false, 
tempFolder.newFolder().getAbsolutePath());
+    InMemoryMap imm = newInMemoryMap(false, uniqueDirPaths(1)[0]);
 
     MemoryIterator ski1 = imm.skvIterator(null);
     mutate(imm, "r1", "foo:cq1", 3, "bar1");
@@ -192,7 +188,7 @@ public class InMemoryMapTest {
 
   @Test
   public void test3() throws Exception {
-    InMemoryMap imm = newInMemoryMap(false, 
tempFolder.newFolder().getAbsolutePath());
+    InMemoryMap imm = newInMemoryMap(false, uniqueDirPaths(1)[0]);
 
     mutate(imm, "r1", "foo:cq1", 3, "bar1");
     mutate(imm, "r1", "foo:cq1", 3, "bar2");
@@ -218,7 +214,7 @@ public class InMemoryMapTest {
 
   @Test
   public void test4() throws Exception {
-    InMemoryMap imm = newInMemoryMap(false, 
tempFolder.newFolder().getAbsolutePath());
+    InMemoryMap imm = newInMemoryMap(false, uniqueDirPaths(1)[0]);
 
     mutate(imm, "r1", "foo:cq1", 3, "bar1");
     mutate(imm, "r1", "foo:cq1", 3, "bar2");
@@ -251,7 +247,7 @@ public class InMemoryMapTest {
   @Test
   public void testDecodeValueModification() throws Exception {
     // This test case is the fix for ACCUMULO-4483
-    InMemoryMap imm = newInMemoryMap(false, 
tempFolder.newFolder().getAbsolutePath());
+    InMemoryMap imm = newInMemoryMap(false, uniqueDirPaths(1)[0]);
 
     mutate(imm, "r1", "foo:cq1", 3, "");
     MemoryIterator ski1 = imm.skvIterator(null);
@@ -269,7 +265,8 @@ public class InMemoryMapTest {
 
   @Test
   public void test5() throws Exception {
-    InMemoryMap imm = newInMemoryMap(false, 
tempFolder.newFolder().getAbsolutePath());
+    String[] newFolders = uniqueDirPaths(2);
+    InMemoryMap imm = newInMemoryMap(false, newFolders[0]);
 
     mutate(imm, "r1", "foo:cq1", 3, "bar1");
     mutate(imm, "r1", "foo:cq1", 3, "bar2");
@@ -287,7 +284,7 @@ public class InMemoryMapTest {
 
     ski1.close();
 
-    imm = newInMemoryMap(false, tempFolder.newFolder().getAbsolutePath());
+    imm = newInMemoryMap(false, newFolders[1]);
 
     mutate(imm, "r1", "foo:cq1", 3, "bar1");
     mutate(imm, "r1", "foo:cq2", 3, "bar2");
@@ -308,7 +305,7 @@ public class InMemoryMapTest {
 
   @Test
   public void test6() throws Exception {
-    InMemoryMap imm = newInMemoryMap(false, 
tempFolder.newFolder().getAbsolutePath());
+    InMemoryMap imm = newInMemoryMap(false, uniqueDirPaths(1)[0]);
 
     mutate(imm, "r1", "foo:cq1", 3, "bar1");
     mutate(imm, "r1", "foo:cq2", 3, "bar2");
@@ -354,7 +351,7 @@ public class InMemoryMapTest {
   private void deepCopyAndDelete(int interleaving, boolean interrupt) throws 
Exception {
     // interleaving == 0 intentionally omitted, this runs the test w/o 
deleting in mem map
 
-    InMemoryMap imm = newInMemoryMap(false, 
tempFolder.newFolder().getAbsolutePath());
+    InMemoryMap imm = newInMemoryMap(false, uniqueDirPaths(1)[0]);
 
     mutate(imm, "r1", "foo:cq1", 3, "bar1");
     mutate(imm, "r1", "foo:cq2", 3, "bar2");
@@ -420,14 +417,14 @@ public class InMemoryMapTest {
 
     for (int i = 1; i <= 4; i++) {
       final int finalI = i;
-      assertThrows("i = " + finalI, IterationInterruptedException.class,
-          () -> deepCopyAndDelete(finalI, true));
+      assertThrows(IterationInterruptedException.class, () -> 
deepCopyAndDelete(finalI, true),
+          "i = " + finalI);
     }
   }
 
   @Test
   public void testBug1() throws Exception {
-    InMemoryMap imm = newInMemoryMap(false, 
tempFolder.newFolder().getAbsolutePath());
+    InMemoryMap imm = newInMemoryMap(false, uniqueDirPaths(1)[0]);
 
     for (int i = 0; i < 20; i++) {
       mutate(imm, "r1", "foo:cq" + i, 3, "bar" + i);
@@ -455,7 +452,7 @@ public class InMemoryMapTest {
 
   @Test
   public void testSeekBackWards() throws Exception {
-    InMemoryMap imm = newInMemoryMap(false, 
tempFolder.newFolder().getAbsolutePath());
+    InMemoryMap imm = newInMemoryMap(false, uniqueDirPaths(1)[0]);
 
     mutate(imm, "r1", "foo:cq1", 3, "bar1");
     mutate(imm, "r1", "foo:cq2", 3, "bar2");
@@ -474,7 +471,7 @@ public class InMemoryMapTest {
 
   @Test
   public void testDuplicateKey() throws Exception {
-    InMemoryMap imm = newInMemoryMap(false, 
tempFolder.newFolder().getAbsolutePath());
+    InMemoryMap imm = newInMemoryMap(false, uniqueDirPaths(1)[0]);
 
     Mutation m = new Mutation(new Text("r1"));
     m.put(new Text("foo"), new Text("cq"), 3, new Value("v1"));
@@ -489,7 +486,7 @@ public class InMemoryMapTest {
 
   @Test
   public void testLocalityGroups() throws Exception {
-    ConfigurationCopy config = 
newConfig(tempFolder.newFolder().getAbsolutePath());
+    ConfigurationCopy config = newConfig(uniqueDirPaths(1)[0]);
     config.set(Property.TABLE_LOCALITY_GROUP_PREFIX + "lg1",
         LocalityGroupUtil.encodeColumnFamilies(toTextSet("cf1", "cf2")));
     config.set(Property.TABLE_LOCALITY_GROUP_PREFIX + "lg2",
@@ -543,13 +540,13 @@ public class InMemoryMapTest {
     SamplerConfigurationImpl sampleConfig = new 
SamplerConfigurationImpl(RowSampler.class.getName(),
         Map.of("hasher", "murmur3_32", "modulus", "7"));
     Sampler sampler = SamplerFactory.newSampler(sampleConfig, 
DefaultConfiguration.getInstance());
-
-    ConfigurationCopy config1 = 
newConfig(tempFolder.newFolder().getAbsolutePath());
+    String[] newFolders = uniqueDirPaths(2);
+    ConfigurationCopy config1 = newConfig(newFolders[0]);
     for (Entry<String,String> entry : 
sampleConfig.toTablePropertiesMap().entrySet()) {
       config1.set(entry.getKey(), entry.getValue());
     }
 
-    ConfigurationCopy config2 = 
newConfig(tempFolder.newFolder().getAbsolutePath());
+    ConfigurationCopy config2 = newConfig(newFolders[1]);
     config2.set(Property.TABLE_LOCALITY_GROUP_PREFIX + "lg1",
         LocalityGroupUtil.encodeColumnFamilies(toTextSet("cf2")));
     config2.set(Property.TABLE_LOCALITY_GROUPS.getKey(), "lg1");
@@ -639,7 +636,7 @@ public class InMemoryMapTest {
         RowSampler.class.getName(), Map.of("hasher", "murmur3_32", "modulus", 
"2"));
     Sampler sampler = SamplerFactory.newSampler(sampleConfig1, 
DefaultConfiguration.getInstance());
 
-    ConfigurationCopy config1 = 
newConfig(tempFolder.newFolder().getAbsolutePath());
+    ConfigurationCopy config1 = newConfig(uniqueDirPaths(1)[0]);
     for (Entry<String,String> entry : 
sampleConfig1.toTablePropertiesMap().entrySet()) {
       config1.set(entry.getKey(), entry.getValue());
     }
@@ -693,11 +690,11 @@ public class InMemoryMapTest {
   }
 
   @Test
-  public void testDifferentSampleConfig() throws Exception {
+  public void testDifferentSampleConfig() {
     SamplerConfigurationImpl sampleConfig = new 
SamplerConfigurationImpl(RowSampler.class.getName(),
         Map.of("hasher", "murmur3_32", "modulus", "7"));
 
-    ConfigurationCopy config1 = 
newConfig(tempFolder.newFolder().getAbsolutePath());
+    ConfigurationCopy config1 = newConfig(uniqueDirPaths(1)[0]);
     for (Entry<String,String> entry : 
sampleConfig.toTablePropertiesMap().entrySet()) {
       config1.set(entry.getKey(), entry.getValue());
     }
@@ -713,8 +710,8 @@ public class InMemoryMapTest {
   }
 
   @Test
-  public void testNoSampleConfig() throws Exception {
-    InMemoryMap imm = newInMemoryMap(false, 
tempFolder.newFolder().getAbsolutePath());
+  public void testNoSampleConfig() {
+    InMemoryMap imm = newInMemoryMap(false, uniqueDirPaths(1)[0]);
 
     mutate(imm, "r", "cf:cq", 5, "b");
 
@@ -726,7 +723,7 @@ public class InMemoryMapTest {
 
   @Test
   public void testEmptyNoSampleConfig() throws Exception {
-    InMemoryMap imm = newInMemoryMap(false, 
tempFolder.newFolder().getAbsolutePath());
+    InMemoryMap imm = newInMemoryMap(false, uniqueDirPaths(1)[0]);
 
     SamplerConfigurationImpl sampleConfig2 = new SamplerConfigurationImpl(
         RowSampler.class.getName(), Map.of("hasher", "murmur3_32", "modulus", 
"9"));
@@ -742,7 +739,7 @@ public class InMemoryMapTest {
     SamplerConfigurationImpl sampleConfig1 = new SamplerConfigurationImpl(
         RowSampler.class.getName(), Map.of("hasher", "murmur3_32", "modulus", 
"9"));
 
-    ConfigurationCopy config1 = 
newConfig(tempFolder.newFolder().getAbsolutePath());
+    ConfigurationCopy config1 = newConfig(uniqueDirPaths(1)[0]);
     for (Entry<String,String> entry : 
sampleConfig1.toTablePropertiesMap().entrySet()) {
       config1.set(entry.getKey(), entry.getValue());
     }
@@ -781,6 +778,16 @@ public class InMemoryMapTest {
         () -> finalIter.seek(new Range(), Set.of(), false));
   }
 
+  private String[] uniqueDirPaths(int numOfDirs) {
+    String[] newDirs = new String[numOfDirs];
+    for (int i = 0; i < newDirs.length; i++) {
+      File newDir = new File(tempDir, testName() + i);
+      assertTrue(newDir.isDirectory() || newDir.mkdir(), "Failed to create 
directory: " + newDir);
+      newDirs[i] = newDir.getAbsolutePath();
+    }
+    return newDirs;
+  }
+
   private TreeMap<Key,Value> readAll(SortedKeyValueIterator<Key,Value> iter) 
throws IOException {
     iter.seek(new Range(), Set.of(), false);
 
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/MemValueTest.java 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/MemValueTest.java
index c6e7a56..a6d5d7e 100644
--- a/server/tserver/src/test/java/org/apache/accumulo/tserver/MemValueTest.java
+++ b/server/tserver/src/test/java/org/apache/accumulo/tserver/MemValueTest.java
@@ -18,10 +18,10 @@
  */
 package org.apache.accumulo.tserver;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import org.apache.accumulo.core.data.Value;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class MemValueTest {
 
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/TabletResourceManagerTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/TabletResourceManagerTest.java
index b02db75..d66a1bb 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/TabletResourceManagerTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/TabletResourceManagerTest.java
@@ -19,13 +19,13 @@
 package org.apache.accumulo.tserver;
 
 import static org.easymock.EasyMock.createMock;
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import org.apache.accumulo.core.dataImpl.KeyExtent;
 import org.apache.accumulo.server.conf.TableConfiguration;
 import 
org.apache.accumulo.tserver.TabletServerResourceManager.TabletResourceManager;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 public class TabletResourceManagerTest {
   private TabletServerResourceManager tsrm;
@@ -33,7 +33,7 @@ public class TabletResourceManagerTest {
   private KeyExtent extent;
   private TableConfiguration conf;
 
-  @Before
+  @BeforeEach
   public void setUp() {
     tsrm = createMock(TabletServerResourceManager.class);
     extent = createMock(KeyExtent.class);
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/TabletServerSyncCheckTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/TabletServerSyncCheckTest.java
index 473fbee..86fdc63 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/TabletServerSyncCheckTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/TabletServerSyncCheckTest.java
@@ -18,7 +18,7 @@
  */
 package org.apache.accumulo.tserver;
 
-import static org.junit.Assert.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import java.util.Collections;
 import java.util.Map;
@@ -36,7 +36,7 @@ import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.hdfs.DistributedFileSystem;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class TabletServerSyncCheckTest {
   private static final String DFS_SUPPORT_APPEND = "dfs.support.append";
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/TservConstraintEnvTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/TservConstraintEnvTest.java
index f5d54ef..877a6d7 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/TservConstraintEnvTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/TservConstraintEnvTest.java
@@ -21,8 +21,8 @@ package org.apache.accumulo.tserver;
 import static org.easymock.EasyMock.createMock;
 import static org.easymock.EasyMock.expect;
 import static org.easymock.EasyMock.replay;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.nio.ByteBuffer;
 import java.util.Collections;
@@ -32,7 +32,7 @@ import org.apache.accumulo.core.data.ArrayByteSequence;
 import org.apache.accumulo.core.data.ByteSequence;
 import org.apache.accumulo.core.securityImpl.thrift.TCredentials;
 import org.apache.accumulo.server.security.SecurityOperation;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class TservConstraintEnvTest {
 
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/WalRemovalOrderTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/WalRemovalOrderTest.java
index c9b86c4..ef8dac1 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/WalRemovalOrderTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/WalRemovalOrderTest.java
@@ -18,7 +18,7 @@
  */
 package org.apache.accumulo.tserver;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.Collections;
 import java.util.LinkedHashSet;
@@ -31,7 +31,7 @@ import org.apache.accumulo.server.fs.VolumeManager;
 import org.apache.accumulo.tserver.TabletServer.ReferencedRemover;
 import org.apache.accumulo.tserver.log.DfsLogger;
 import org.apache.accumulo.tserver.log.DfsLogger.ServerResources;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import com.google.common.collect.Sets;
 
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/MemValueTest.java 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/WithTestNames.java
similarity index 57%
copy from 
server/tserver/src/test/java/org/apache/accumulo/tserver/MemValueTest.java
copy to 
server/tserver/src/test/java/org/apache/accumulo/tserver/WithTestNames.java
index c6e7a56..04dcc17 100644
--- a/server/tserver/src/test/java/org/apache/accumulo/tserver/MemValueTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/WithTestNames.java
@@ -18,19 +18,25 @@
  */
 package org.apache.accumulo.tserver;
 
-import static org.junit.Assert.assertEquals;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.TestInfo;
 
-import org.apache.accumulo.core.data.Value;
-import org.junit.Test;
+// This is only for the unit tests and integration tests in this module
+// It must be copied for use in other modules, because tests in one module
+// don't have dependencies on other modules, and we can't put this in a
+// regular, non-test jar, because we don't want to add a dependency on
+// JUnit in a non-test jar
+public class WithTestNames {
 
-public class MemValueTest {
+  private String testName;
 
-  @Test
-  public void testDecodeDoesntModifyInputValue() {
-    Value v = new Value("2.0");
-    Value encodedValue = MemValue.encode(v, 3);
-    MemValue m1 = MemValue.decode(encodedValue);
-    MemValue m2 = MemValue.decode(encodedValue);
-    assertEquals(m1.kvCount, m2.kvCount);
+  @BeforeEach
+  public void setTestName(TestInfo info) {
+    testName = info.getTestMethod().get().getName();
   }
+
+  protected String testName() {
+    return testName;
+  }
+
 }
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/CompactableUtilsTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/CompactableUtilsTest.java
index d77b2c4..897d393 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/CompactableUtilsTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/CompactableUtilsTest.java
@@ -18,12 +18,12 @@
  */
 package org.apache.accumulo.tserver.compaction;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import org.apache.accumulo.core.metadata.TabletFile;
 import org.apache.accumulo.tserver.tablet.CompactableUtils;
 import org.apache.hadoop.fs.Path;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class CompactableUtilsTest {
 
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/CompactionPlanTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/CompactionPlanTest.java
index 9df184a..52c8eab 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/CompactionPlanTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/CompactionPlanTest.java
@@ -18,12 +18,12 @@
  */
 package org.apache.accumulo.tserver.compaction;
 
-import static org.junit.Assert.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import java.util.Set;
 
 import org.apache.accumulo.core.metadata.StoredTabletFile;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 @SuppressWarnings("removal")
 public class CompactionPlanTest {
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/DefaultCompactionStrategyTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/DefaultCompactionStrategyTest.java
index 07728a3..fdd4540 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/DefaultCompactionStrategyTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/DefaultCompactionStrategyTest.java
@@ -18,8 +18,8 @@
  */
 package org.apache.accumulo.tserver.compaction;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.io.DataInputStream;
 import java.util.ArrayList;
@@ -57,7 +57,7 @@ import org.apache.accumulo.core.util.Pair;
 import org.apache.accumulo.server.ServerContext;
 import org.apache.hadoop.io.Text;
 import org.easymock.EasyMock;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 @SuppressWarnings("removal")
 public class DefaultCompactionStrategyTest {
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/SizeLimitCompactionStrategyTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/SizeLimitCompactionStrategyTest.java
index f9c81dd..476ab52 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/SizeLimitCompactionStrategyTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/SizeLimitCompactionStrategyTest.java
@@ -19,9 +19,9 @@
 package org.apache.accumulo.tserver.compaction;
 
 import static 
org.apache.accumulo.tserver.compaction.DefaultCompactionStrategyTest.getServerContext;
-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.assertTrue;
 
 import java.io.IOException;
 import java.util.HashMap;
@@ -34,7 +34,7 @@ import org.apache.accumulo.core.data.TableId;
 import org.apache.accumulo.core.dataImpl.KeyExtent;
 import org.apache.accumulo.core.metadata.StoredTabletFile;
 import org.apache.accumulo.core.metadata.schema.DataFileValue;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 @SuppressWarnings("removal")
 public class SizeLimitCompactionStrategyTest {
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/SizeWindowTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/SizeWindowTest.java
index 4b9e0fb..aeab0f4 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/SizeWindowTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/SizeWindowTest.java
@@ -18,8 +18,8 @@
  */
 package org.apache.accumulo.tserver.compaction;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.Collection;
 import java.util.HashMap;
@@ -30,7 +30,7 @@ import org.apache.accumulo.core.metadata.StoredTabletFile;
 import org.apache.accumulo.core.metadata.TabletFile;
 import org.apache.accumulo.core.metadata.schema.DataFileValue;
 import 
org.apache.accumulo.tserver.compaction.DefaultCompactionStrategy.SizeWindow;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class SizeWindowTest {
 
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/strategies/BasicCompactionStrategyTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/strategies/BasicCompactionStrategyTest.java
index 4120cd9..4c047e2 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/strategies/BasicCompactionStrategyTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/strategies/BasicCompactionStrategyTest.java
@@ -19,10 +19,10 @@
 package org.apache.accumulo.tserver.compaction.strategies;
 
 import static 
org.apache.accumulo.tserver.compaction.DefaultCompactionStrategyTest.getServerContext;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertThrows;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.io.IOException;
 import java.util.HashMap;
@@ -41,8 +41,8 @@ import org.apache.accumulo.tserver.InMemoryMapTest;
 import org.apache.accumulo.tserver.compaction.MajorCompactionReason;
 import org.apache.accumulo.tserver.compaction.MajorCompactionRequest;
 import org.apache.accumulo.tserver.compaction.SizeLimitCompactionStrategyTest;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 /**
  * Tests org.apache.accumulo.tserver.compaction.BasicCompactionStrategy
@@ -66,7 +66,7 @@ public class BasicCompactionStrategyTest {
     return ret;
   }
 
-  @Before
+  @BeforeEach
   public void setup() {
     opts.put(BasicCompactionStrategy.LARGE_FILE_COMPRESSION_TYPE, 
largeCompressionType);
     opts.put(BasicCompactionStrategy.LARGE_FILE_COMPRESSION_THRESHOLD, "500M");
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/strategies/ConfigurableCompactionStrategyTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/strategies/ConfigurableCompactionStrategyTest.java
index ca3537f..0c2176f 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/strategies/ConfigurableCompactionStrategyTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/strategies/ConfigurableCompactionStrategyTest.java
@@ -19,8 +19,8 @@
 package org.apache.accumulo.tserver.compaction.strategies;
 
 import static 
org.apache.accumulo.core.conf.ConfigurationTypeHelper.getFixedMemoryAsBytes;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.net.URI;
 import java.net.URISyntaxException;
@@ -36,7 +36,7 @@ import 
org.apache.accumulo.core.client.admin.compaction.CompactionConfigurer.Ove
 import org.apache.accumulo.core.compaction.CompactionSettings;
 import org.apache.accumulo.core.conf.Property;
 import org.apache.accumulo.core.data.TableId;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class ConfigurableCompactionStrategyTest {
 
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/constraints/ConstraintCheckerTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/constraints/ConstraintCheckerTest.java
index e6f9c82..9d206f3 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/constraints/ConstraintCheckerTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/constraints/ConstraintCheckerTest.java
@@ -23,8 +23,8 @@ import static org.easymock.EasyMock.createMock;
 import static org.easymock.EasyMock.createMockBuilder;
 import static org.easymock.EasyMock.expect;
 import static org.easymock.EasyMock.replay;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
 
 import java.util.ArrayList;
 import java.util.HashSet;
@@ -37,8 +37,8 @@ import org.apache.accumulo.core.data.TabletId;
 import org.apache.accumulo.core.data.constraints.Constraint;
 import org.apache.accumulo.core.data.constraints.Constraint.Environment;
 import org.apache.hadoop.io.Text;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 import com.google.common.collect.Iterables;
 
@@ -51,7 +51,7 @@ public class ConstraintCheckerTest {
   private Mutation m;
   private Mutation m2;
 
-  @Before
+  @BeforeEach
   public void setup() throws SecurityException {
     cc = 
createMockBuilder(ConstraintChecker.class).addMockedMethod("getConstraints").createMock();
     constraints = new ArrayList<>();
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/log/DfsLoggerTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/log/DfsLoggerTest.java
index 2b79fd0..d12c227 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/log/DfsLoggerTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/log/DfsLoggerTest.java
@@ -18,7 +18,7 @@
  */
 package org.apache.accumulo.tserver.log;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -29,7 +29,7 @@ import org.apache.accumulo.core.client.Durability;
 import org.apache.accumulo.tserver.TabletMutations;
 import org.apache.accumulo.tserver.tablet.CommitSession;
 import org.easymock.EasyMock;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class DfsLoggerTest {
 
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/log/LogEventsTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/log/LogEventsTest.java
index 5673069..4e847af 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/log/LogEventsTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/log/LogEventsTest.java
@@ -18,10 +18,10 @@
  */
 package org.apache.accumulo.tserver.log;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import org.apache.accumulo.tserver.logger.LogEvents;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class LogEventsTest {
   @Test
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/log/LogFileKeyTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/log/LogFileKeyTest.java
index 03bf876..436b9eb 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/log/LogFileKeyTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/log/LogFileKeyTest.java
@@ -18,8 +18,8 @@
  */
 package org.apache.accumulo.tserver.log;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import java.io.IOException;
 import java.util.ArrayList;
@@ -32,7 +32,7 @@ import org.apache.accumulo.core.dataImpl.KeyExtent;
 import org.apache.accumulo.tserver.logger.LogEvents;
 import org.apache.accumulo.tserver.logger.LogFileKey;
 import org.apache.hadoop.io.Text;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class LogFileKeyTest {
 
@@ -111,8 +111,8 @@ public class LogFileKeyTest {
     Key k = logFileKey.toKey();
 
     var converted = LogFileKey.fromKey(k);
-    assertEquals("Failed to convert tabletId = " + tabletId + " seq = " + seq, 
logFileKey,
-        converted);
+    assertEquals(logFileKey, converted,
+        "Failed to convert tabletId = " + tabletId + " seq = " + seq);
   }
 
   @Test
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/log/RecoveryLogsIteratorTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/log/RecoveryLogsIteratorTest.java
index d6a013e..c8905bf 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/log/RecoveryLogsIteratorTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/log/RecoveryLogsIteratorTest.java
@@ -23,10 +23,9 @@ import static 
org.apache.accumulo.tserver.logger.LogEvents.OPEN;
 import static org.easymock.EasyMock.createMock;
 import static org.easymock.EasyMock.expect;
 import static org.easymock.EasyMock.replay;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertThrows;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import java.io.File;
 import java.io.IOException;
@@ -47,20 +46,20 @@ import org.apache.accumulo.server.ServerContext;
 import org.apache.accumulo.server.fs.VolumeManager;
 import org.apache.accumulo.server.fs.VolumeManagerImpl;
 import org.apache.accumulo.server.log.SortedLogState;
+import org.apache.accumulo.tserver.WithTestNames;
 import org.apache.accumulo.tserver.logger.LogFileKey;
 import org.apache.accumulo.tserver.logger.LogFileValue;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.TemporaryFolder;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
 
 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 
 @SuppressFBWarnings(value = "PATH_TRAVERSAL_IN", justification = "paths not 
set by user input")
-public class RecoveryLogsIteratorTest {
+public class RecoveryLogsIteratorTest extends WithTestNames {
 
   private VolumeManager fs;
   private File workDir;
@@ -68,18 +67,16 @@ public class RecoveryLogsIteratorTest {
   static ServerContext context;
   static LogSorter logSorter;
 
-  @Rule
-  public TemporaryFolder tempFolder =
-      new TemporaryFolder(new File(System.getProperty("user.dir") + 
"/target"));
+  @TempDir
+  private static File tempDir;
 
-  @Before
+  @BeforeEach
   public void setUp() throws Exception {
     context = createMock(ServerContext.class);
     logSorter = new LogSorter(context, DefaultConfiguration.getInstance());
 
-    workDir = tempFolder.newFolder();
+    workDir = new File(tempDir, testName());
     String path = workDir.getAbsolutePath();
-    assertTrue(workDir.delete());
     fs = VolumeManagerImpl.getLocalForTesting(path);
     expect(context.getVolumeManager()).andReturn(fs).anyTimes();
     
expect(context.getCryptoService()).andReturn(CryptoServiceFactory.newDefaultInstance())
@@ -88,7 +85,7 @@ public class RecoveryLogsIteratorTest {
     replay(context);
   }
 
-  @After
+  @AfterEach
   public void tearDown() throws Exception {
     fs.close();
   }
@@ -138,8 +135,8 @@ public class RecoveryLogsIteratorTest {
     try (RecoveryLogsIterator rli = new RecoveryLogsIterator(context, dirs, 
null, null, false)) {
       while (rli.hasNext()) {
         Entry<LogFileKey,LogFileValue> entry = rli.next();
-        assertEquals("TabletId does not match", 1, entry.getKey().tabletId);
-        assertEquals("Event does not match", DEFINE_TABLET, 
entry.getKey().event);
+        assertEquals(1, entry.getKey().tabletId, "TabletId does not match");
+        assertEquals(DEFINE_TABLET, entry.getKey().event, "Event does not 
match");
       }
     }
   }
@@ -161,8 +158,9 @@ public class RecoveryLogsIteratorTest {
 
     createRecoveryDir(logs, dirs, false);
 
-    assertThrows("Finish marker should not be found", IOException.class,
-        () -> new RecoveryLogsIterator(context, dirs, null, null, false));
+    assertThrows(IOException.class,
+        () -> new RecoveryLogsIterator(context, dirs, null, null, false),
+        "Finish marker should not be found");
   }
 
   @Test
@@ -170,9 +168,10 @@ public class RecoveryLogsIteratorTest {
     String destPath = workDir + "/test.rf";
     fs.create(new Path(destPath));
 
-    assertThrows("Finish marker should not be found for a single file.", 
IOException.class,
-        () -> new RecoveryLogsIterator(context, Collections.singletonList(new 
Path(destPath)), null,
-            null, false));
+    assertThrows(
+        IOException.class, () -> new RecoveryLogsIterator(context,
+            Collections.singletonList(new Path(destPath)), null, null, false),
+        "Finish marker should not be found for a single file.");
   }
 
   @Test
@@ -192,9 +191,9 @@ public class RecoveryLogsIteratorTest {
 
     createRecoveryDir(logs, dirs, true);
 
-    assertThrows("First log entry is not OPEN so exception should be thrown.",
-        IllegalStateException.class,
-        () -> new RecoveryLogsIterator(context, dirs, null, null, true));
+    assertThrows(IllegalStateException.class,
+        () -> new RecoveryLogsIterator(context, dirs, null, null, true),
+        "First log entry is not OPEN so exception should be thrown.");
   }
 
   @Test
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/log/SortedLogRecoveryTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/log/SortedLogRecoveryTest.java
index 415b7ed..e0671a5 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/log/SortedLogRecoveryTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/log/SortedLogRecoveryTest.java
@@ -27,9 +27,9 @@ import static org.easymock.EasyMock.expect;
 import static org.easymock.EasyMock.replay;
 import static org.easymock.EasyMock.reset;
 import static org.easymock.EasyMock.verify;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertThrows;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.io.File;
 import java.io.IOException;
@@ -61,6 +61,7 @@ import org.apache.accumulo.server.ServerContext;
 import org.apache.accumulo.server.data.ServerMutation;
 import org.apache.accumulo.server.fs.VolumeManagerImpl;
 import org.apache.accumulo.server.log.SortedLogState;
+import org.apache.accumulo.tserver.WithTestNames;
 import org.apache.accumulo.tserver.logger.LogEvents;
 import org.apache.accumulo.tserver.logger.LogFileKey;
 import org.apache.accumulo.tserver.logger.LogFileValue;
@@ -69,15 +70,14 @@ import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.io.Text;
 import org.easymock.EasyMock;
-import org.junit.Before;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.TemporaryFolder;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
 
 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 
 @SuppressFBWarnings(value = "PATH_TRAVERSAL_IN", justification = "paths not 
set by user input")
-public class SortedLogRecoveryTest {
+public class SortedLogRecoveryTest extends WithTestNames {
 
   static final int bufferSize = 5;
   static final KeyExtent extent = new KeyExtent(TableId.of("table"), null, 
null);
@@ -87,11 +87,10 @@ public class SortedLogRecoveryTest {
   static ServerContext context;
   static LogSorter logSorter;
 
-  @Rule
-  public TemporaryFolder tempFolder =
-      new TemporaryFolder(new File(System.getProperty("user.dir") + 
"/target"));
+  @TempDir
+  private static File tempDir;
 
-  @Before
+  @BeforeEach
   public void setup() {
     context = EasyMock.createMock(ServerContext.class);
     logSorter = new LogSorter(context, DefaultConfiguration.getInstance());
@@ -166,7 +165,7 @@ public class SortedLogRecoveryTest {
   private List<Mutation> recover(Map<String,KeyValue[]> logs, Set<String> 
files, KeyExtent extent,
       int bufferSize) throws IOException {
 
-    final String workdir = tempFolder.newFolder().getAbsolutePath();
+    final String workdir = new File(tempDir, testName()).getAbsolutePath();
     try (var fs = VolumeManagerImpl.getLocalForTesting(workdir)) {
       expect(context.getVolumeManager()).andReturn(fs).anyTimes();
       
expect(context.getCryptoService()).andReturn(CryptoServiceFactory.newDefaultInstance())
@@ -1074,8 +1073,8 @@ public class SortedLogRecoveryTest {
     // test all the possible properties for tserver.sort.file. prefix
     String prop = Property.TSERV_WAL_SORT_FILE_PREFIX + "invalid";
     testConfig.set(prop, "snappy");
-    assertThrows("Did not throw IllegalArgumentException for " + prop,
-        IllegalArgumentException.class, () -> new LogSorter(context, 
testConfig));
+    assertThrows(IllegalArgumentException.class, () -> new LogSorter(context, 
testConfig),
+        "Did not throw IllegalArgumentException for " + prop);
   }
 
   @Test
@@ -1095,7 +1094,7 @@ public class SortedLogRecoveryTest {
     testConfig.set(prefix + "replication", "3");
     LogSorter sorter = new LogSorter(context, testConfig);
 
-    final String workdir = tempFolder.newFolder().getAbsolutePath();
+    final String workdir = new File(tempDir, testName()).getAbsolutePath();
 
     try (var vm = VolumeManagerImpl.getLocalForTesting(workdir)) {
       expect(context.getVolumeManager()).andReturn(vm).anyTimes();
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/log/TestUpgradePathForWALogs.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/log/TestUpgradePathForWALogs.java
index 23614bd..b030560 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/log/TestUpgradePathForWALogs.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/log/TestUpgradePathForWALogs.java
@@ -23,9 +23,9 @@ import static org.easymock.EasyMock.createMock;
 import static org.easymock.EasyMock.expect;
 import static org.easymock.EasyMock.replay;
 import static org.easymock.EasyMock.verify;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertThrows;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.io.File;
 import java.io.FileOutputStream;
@@ -39,19 +39,19 @@ import org.apache.accumulo.core.crypto.CryptoServiceFactory;
 import org.apache.accumulo.server.ServerContext;
 import org.apache.accumulo.server.fs.VolumeManager;
 import org.apache.accumulo.server.fs.VolumeManagerImpl;
+import org.apache.accumulo.tserver.WithTestNames;
 import org.apache.commons.io.IOUtils;
 import org.apache.hadoop.fs.Path;
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.TemporaryFolder;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
 
 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 
 @SuppressFBWarnings(value = {"PATH_TRAVERSAL_IN", "PATH_TRAVERSAL_OUT"},
     justification = "paths not set by user input")
-public class TestUpgradePathForWALogs {
+public class TestUpgradePathForWALogs extends WithTestNames {
 
   // older logs no longer compatible
   private static final String WALOG_FROM_15 = "/walog-from-15.walog";
@@ -63,16 +63,22 @@ public class TestUpgradePathForWALogs {
   private static final AccumuloConfiguration config = 
DefaultConfiguration.getInstance();
   private ServerContext context;
 
-  @Rule
-  public TemporaryFolder tempFolder =
-      new TemporaryFolder(new File(System.getProperty("user.dir"), "target"));
+  @TempDir
+  private static File tempDir;
 
-  @Before
+  private static File perTestTempSubDir;
+
+  @BeforeEach
   public void setUp() throws Exception {
     context = createMock(ServerContext.class);
-    File workDir = tempFolder.newFolder();
-    String path = workDir.getAbsolutePath();
-    assertTrue(workDir.delete());
+
+    // Create a new subdirectory for each test
+    perTestTempSubDir = new File(tempDir, testName());
+    assertTrue(perTestTempSubDir.isDirectory() || perTestTempSubDir.mkdir(),
+        "Failed to create folder: " + perTestTempSubDir);
+
+    String path = perTestTempSubDir.getAbsolutePath();
+
     VolumeManager fs = VolumeManagerImpl.getLocalForTesting(path);
     
expect(context.getCryptoService()).andReturn(CryptoServiceFactory.newDefaultInstance())
         .anyTimes();
@@ -80,7 +86,7 @@ public class TestUpgradePathForWALogs {
     replay(context);
   }
 
-  @After
+  @AfterEach
   public void tearDown() {
     verify(context);
   }
@@ -91,7 +97,7 @@ public class TestUpgradePathForWALogs {
   @Test
   public void testUpgradeOf15WALog() throws IOException {
     String walogToTest = WALOG_FROM_15;
-    String testPath = tempFolder.getRoot().getAbsolutePath();
+    String testPath = perTestTempSubDir.getAbsolutePath();
 
     try (InputStream walogStream = getClass().getResourceAsStream(walogToTest);
         OutputStream walogInHDFStream = new FileOutputStream(testPath + 
walogToTest)) {
@@ -111,7 +117,7 @@ public class TestUpgradePathForWALogs {
   @Test
   public void testBasic16WALogRead() throws IOException {
     String walogToTest = WALOG_FROM_16;
-    String testPath = tempFolder.getRoot().getAbsolutePath();
+    String testPath = perTestTempSubDir.getAbsolutePath();
     String destPath = "file://" + testPath + "/manyMaps";
 
     try (InputStream walogStream = getClass().getResourceAsStream(walogToTest);
@@ -135,7 +141,7 @@ public class TestUpgradePathForWALogs {
   @Test
   public void testBasic20WALogRead() throws IOException {
     String walogToTest = WALOG_FROM_20;
-    String testPath = tempFolder.getRoot().getAbsolutePath();
+    String testPath = perTestTempSubDir.getAbsolutePath();
     String destPath = "file://" + testPath + "/manyMaps";
 
     try (InputStream walogStream = getClass().getResourceAsStream(walogToTest);
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/logger/LogFileTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/logger/LogFileTest.java
index dcc2196..c21eaa4 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/logger/LogFileTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/logger/LogFileTest.java
@@ -24,8 +24,8 @@ import static 
org.apache.accumulo.tserver.logger.LogEvents.DEFINE_TABLET;
 import static org.apache.accumulo.tserver.logger.LogEvents.MANY_MUTATIONS;
 import static org.apache.accumulo.tserver.logger.LogEvents.MUTATION;
 import static org.apache.accumulo.tserver.logger.LogEvents.OPEN;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.io.IOException;
 import java.util.Arrays;
@@ -39,7 +39,7 @@ import org.apache.accumulo.server.data.ServerMutation;
 import org.apache.hadoop.io.DataInputBuffer;
 import org.apache.hadoop.io.DataOutputBuffer;
 import org.apache.hadoop.io.Text;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class LogFileTest {
 
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/memory/LargestFirstMemoryManagerTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/memory/LargestFirstMemoryManagerTest.java
index 2d839a3..906179e 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/memory/LargestFirstMemoryManagerTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/memory/LargestFirstMemoryManagerTest.java
@@ -22,7 +22,7 @@ import static java.util.concurrent.TimeUnit.MINUTES;
 import static org.easymock.EasyMock.createMock;
 import static org.easymock.EasyMock.expect;
 import static org.easymock.EasyMock.replay;
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.Arrays;
 import java.util.List;
@@ -34,14 +34,12 @@ import org.apache.accumulo.core.data.TableId;
 import org.apache.accumulo.core.dataImpl.KeyExtent;
 import org.apache.accumulo.server.ServerContext;
 import org.apache.hadoop.io.Text;
-import org.junit.Before;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.Timeout;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.Timeout;
 
+@Timeout(60)
 public class LargestFirstMemoryManagerTest {
-  @Rule
-  public Timeout timeout = Timeout.seconds(60);
 
   private static final long ZERO = LargestFirstMemoryManager.ZERO_TIME;
   private static final long LATER = ZERO + MINUTES.toMillis(20);
@@ -52,7 +50,7 @@ public class LargestFirstMemoryManagerTest {
 
   private ServerContext context;
 
-  @Before
+  @BeforeEach
   public void mockServerInfo() {
     context = createMock(ServerContext.class);
     AccumuloConfiguration conf = createMock(AccumuloConfiguration.class);
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/replication/AccumuloReplicaSystemTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/replication/AccumuloReplicaSystemTest.java
index d65102a..73e0e61 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/replication/AccumuloReplicaSystemTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/replication/AccumuloReplicaSystemTest.java
@@ -22,9 +22,9 @@ import static org.easymock.EasyMock.createMock;
 import static org.easymock.EasyMock.expect;
 import static org.easymock.EasyMock.replay;
 import static org.easymock.EasyMock.verify;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotEquals;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
@@ -57,7 +57,7 @@ import org.apache.accumulo.tserver.logger.LogFileKey;
 import org.apache.accumulo.tserver.logger.LogFileValue;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.io.Text;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 @Deprecated
 public class AccumuloReplicaSystemTest {
@@ -321,8 +321,8 @@ public class AccumuloReplicaSystemTest {
 
     assertEquals("row", new String(m.getRow()));
     assertEquals(1, m.getReplicationSources().size());
-    assertTrue("Expected source cluster to be listed in mutation replication 
source",
-        m.getReplicationSources().contains("source"));
+    assertTrue(m.getReplicationSources().contains("source"),
+        "Expected source cluster to be listed in mutation replication source");
   }
 
   @Test
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/replication/BatchWriterReplicationReplayerTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/replication/BatchWriterReplicationReplayerTest.java
index e659962..2267bfa 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/replication/BatchWriterReplicationReplayerTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/replication/BatchWriterReplicationReplayerTest.java
@@ -39,9 +39,9 @@ import org.apache.accumulo.core.replication.thrift.WalEdits;
 import org.apache.accumulo.server.data.ServerMutation;
 import org.apache.accumulo.tserver.logger.LogEvents;
 import org.apache.accumulo.tserver.logger.LogFileKey;
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 import com.google.common.collect.Lists;
 
@@ -52,7 +52,7 @@ public class BatchWriterReplicationReplayerTest {
   private AccumuloConfiguration conf;
   private BatchWriter bw;
 
-  @Before
+  @BeforeEach
   public void setUpContext() {
     conf = createMock(AccumuloConfiguration.class);
     bw = createMock(BatchWriter.class);
@@ -60,7 +60,7 @@ public class BatchWriterReplicationReplayerTest {
     expect(context.getConfiguration()).andReturn(conf).anyTimes();
   }
 
-  @After
+  @AfterEach
   public void verifyMock() {
     verify(context, conf, bw);
   }
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/replication/ReplicationProcessorTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/replication/ReplicationProcessorTest.java
index 95c9626..a9c379a 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/replication/ReplicationProcessorTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/replication/ReplicationProcessorTest.java
@@ -24,8 +24,8 @@ import static org.easymock.EasyMock.createMockBuilder;
 import static org.easymock.EasyMock.expect;
 import static org.easymock.EasyMock.replay;
 import static org.easymock.EasyMock.verify;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import java.util.Map;
 
@@ -39,7 +39,7 @@ import org.apache.accumulo.server.replication.ReplicaSystem;
 import org.apache.accumulo.server.replication.ReplicaSystemHelper;
 import org.apache.accumulo.server.replication.proto.Replication.Status;
 import org.apache.hadoop.fs.Path;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 @Deprecated
 public class ReplicationProcessorTest {
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/tablet/CompactableImplFileManagerTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/tablet/CompactableImplFileManagerTest.java
index 059e828..b6825ed 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/tablet/CompactableImplFileManagerTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/tablet/CompactableImplFileManagerTest.java
@@ -23,10 +23,10 @@ import static 
org.apache.accumulo.core.spi.compaction.CompactionKind.SELECTOR;
 import static org.apache.accumulo.core.spi.compaction.CompactionKind.SYSTEM;
 import static org.apache.accumulo.core.spi.compaction.CompactionKind.USER;
 import static 
org.apache.accumulo.tserver.tablet.CompactableImplFileManagerTest.TestFileManager.SELECTION_EXPIRATION;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertThrows;
-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.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.time.Duration;
 import java.util.Arrays;
@@ -47,7 +47,7 @@ import org.apache.accumulo.core.spi.compaction.CompactionKind;
 import org.apache.accumulo.tserver.tablet.CompactableImpl.ChopSelectionStatus;
 import 
org.apache.accumulo.tserver.tablet.CompactableImpl.FileManager.ChopSelector;
 import org.apache.accumulo.tserver.tablet.CompactableImpl.FileSelectionStatus;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import com.google.common.collect.Sets;
 
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/tablet/CompactableImplTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/tablet/CompactableImplTest.java
index 983145a..c492f6a 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/tablet/CompactableImplTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/tablet/CompactableImplTest.java
@@ -20,8 +20,8 @@ package org.apache.accumulo.tserver.tablet;
 
 import static 
org.apache.accumulo.tserver.tablet.CompactableImplFileManagerTest.newFile;
 import static 
org.apache.accumulo.tserver.tablet.CompactableImplFileManagerTest.newFiles;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.HashMap;
 import java.util.Map;
@@ -36,7 +36,7 @@ import 
org.apache.accumulo.core.metadata.schema.ExternalCompactionMetadata;
 import org.apache.accumulo.core.spi.compaction.CompactionExecutorId;
 import org.apache.accumulo.core.spi.compaction.CompactionKind;
 import org.apache.accumulo.core.util.compaction.CompactionExecutorIdImpl;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class CompactableImplTest {
   private static ExternalCompactionMetadata newECM(Set<StoredTabletFile> 
jobFiles,
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/tablet/TabletMutationPrepAttemptTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/tablet/TabletMutationPrepAttemptTest.java
index 70a4451..60dee7b 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/tablet/TabletMutationPrepAttemptTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/tablet/TabletMutationPrepAttemptTest.java
@@ -19,10 +19,10 @@
 package org.apache.accumulo.tserver.tablet;
 
 import static org.easymock.EasyMock.mock;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertThrows;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.ArrayList;
 import java.util.HashSet;
@@ -31,7 +31,7 @@ import java.util.Set;
 
 import org.apache.accumulo.core.constraints.Violations;
 import org.apache.accumulo.core.data.Mutation;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class TabletMutationPrepAttemptTest {
 
diff --git 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/tablet/TabletTest.java
 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/tablet/TabletTest.java
index dcc9caa..3233f06 100644
--- 
a/server/tserver/src/test/java/org/apache/accumulo/tserver/tablet/TabletTest.java
+++ 
b/server/tserver/src/test/java/org/apache/accumulo/tserver/tablet/TabletTest.java
@@ -18,7 +18,7 @@
  */
 package org.apache.accumulo.tserver.tablet;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.Map;
 
@@ -26,7 +26,7 @@ import org.apache.accumulo.core.conf.Property;
 import org.apache.accumulo.tserver.compaction.CompactionPlan;
 import org.apache.accumulo.tserver.compaction.WriteParameters;
 import org.easymock.EasyMock;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 @SuppressWarnings("removal")
 public class TabletTest {

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