addresses review:

- Moves the methods from MultipleStoresTestRunner into MultipleStoresIT
  and removes MultipleStoresTestRunner
- Removes unneccessary start of mini cluster in MetaMultipleStoresIT

test/src/main/java/org/apache/accumulo/test/fate/MultipleStoresIT.java

@@ -46,14 +46,14 @@
 import org.apache.accumulo.core.fate.zookeeper.ZooUtil;
 import org.apache.accumulo.harness.SharedMiniClusterBase;
 import org.apache.accumulo.test.util.Wait;
+import org.apache.zookeeper.KeeperException;
 import org.junit.jupiter.api.Test;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import com.google.common.collect.Sets;
 
-public abstract class MultipleStoresIT extends SharedMiniClusterBase
-    implements MultipleStoresTestRunner {
+public abstract class MultipleStoresIT extends SharedMiniClusterBase {
 
   private static final Logger LOG = LoggerFactory.getLogger(MultipleStoresIT.class);
 
@@ -446,4 +446,22 @@ public static class LatchTestEnv extends MultipleStoresTestEnv {
     public final AtomicInteger numWorkers = new AtomicInteger(0);
     public final CountDownLatch workersLatch = new CountDownLatch(1);
   }
+
+  protected abstract void executeSleepingEnvTest(
+      MultipleStoresTestExecutor<SleepingTestEnv> testMethod) throws Exception;
+
+  protected abstract void executeLatchEnvTest(MultipleStoresTestExecutor<LatchTestEnv> testMethod)
+      throws Exception;
+
+  protected interface TestStoreFactory<T extends MultipleStoresTestEnv> {
+    FateStore<T> create(ZooUtil.LockID lockID, Predicate<ZooUtil.LockID> isLockHeld)
+        throws InterruptedException, KeeperException;
+  }
+
+  @FunctionalInterface
+  protected interface MultipleStoresTestExecutor<T extends MultipleStoresTestEnv> {
+    void execute(TestStoreFactory<T> fateStoreFactory) throws Exception;
+  }
+
+  protected static class MultipleStoresTestEnv {}
 }

test/src/main/java/org/apache/accumulo/test/fate/meta/MetaMultipleStoresIT.java

@@ -26,7 +26,6 @@
 import org.apache.accumulo.core.fate.zookeeper.MetaFateStore;
 import org.apache.accumulo.core.fate.zookeeper.ZooReaderWriter;
 import org.apache.accumulo.core.fate.zookeeper.ZooUtil;
-import org.apache.accumulo.harness.SharedMiniClusterBase;
 import org.apache.accumulo.test.fate.MultipleStoresIT;
 import org.apache.accumulo.test.zookeeper.ZooKeeperTestingServer;
 import org.apache.zookeeper.KeeperException;
@@ -43,7 +42,6 @@ public class MetaMultipleStoresIT extends MultipleStoresIT {
 
   @BeforeAll
   public static void setup() throws Exception {
-    SharedMiniClusterBase.startMiniCluster();
     SZK = new ZooKeeperTestingServer(TEMP_DIR);
     ZK = SZK.getZooReaderWriter();
     FATE_DIR = Constants.ZFATE;
@@ -52,17 +50,16 @@ public static void setup() throws Exception {
   @AfterAll
   public static void teardown() throws Exception {
     SZK.close();
-    SharedMiniClusterBase.stopMiniCluster();
   }
 
   @Override
-  public void executeSleepingEnvTest(MultipleStoresTestExecutor<SleepingTestEnv> testMethod)
+  protected void executeSleepingEnvTest(MultipleStoresTestExecutor<SleepingTestEnv> testMethod)
       throws Exception {
     testMethod.execute(new SleepingEnvMetaStoreFactory());
   }
 
   @Override
-  public void executeLatchEnvTest(MultipleStoresTestExecutor<LatchTestEnv> testMethod)
+  protected void executeLatchEnvTest(MultipleStoresTestExecutor<LatchTestEnv> testMethod)
       throws Exception {
     testMethod.execute(new LatchEnvMetaStoreFactory());
   }

test/src/main/java/org/apache/accumulo/test/fate/user/UserMultipleStoresIT.java

@@ -66,13 +66,13 @@ public void afterEachTeardown()
   }
 
   @Override
-  public void executeSleepingEnvTest(MultipleStoresTestExecutor<SleepingTestEnv> testMethod)
+  protected void executeSleepingEnvTest(MultipleStoresTestExecutor<SleepingTestEnv> testMethod)
       throws Exception {
     testMethod.execute(new SleepingEnvUserStoreFactory());
   }
 
   @Override
-  public void executeLatchEnvTest(MultipleStoresTestExecutor<LatchTestEnv> testMethod)
+  protected void executeLatchEnvTest(MultipleStoresTestExecutor<LatchTestEnv> testMethod)
       throws Exception {
     testMethod.execute(new LatchEnvUserStoreFactory());
   }