Revert "GEODE-9969: Fix unescaping the region name with underscore (#7282)"

This reverts commit 4b5b30e379c35f17578251fe297c2b7fe7921fa4. Breaking
windows-acceptance-test.
diff --git a/geode-assembly/src/acceptanceTest/java/org/apache/geode/cache/persistence/MissingDiskStoreAfterServerRestartAcceptanceTest.java b/geode-assembly/src/acceptanceTest/java/org/apache/geode/cache/persistence/MissingDiskStoreAfterServerRestartAcceptanceTest.java
deleted file mode 100644
index 3501ea3..0000000
--- a/geode-assembly/src/acceptanceTest/java/org/apache/geode/cache/persistence/MissingDiskStoreAfterServerRestartAcceptanceTest.java
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more contributor license
- * agreements. See the NOTICE file distributed with this work for additional information regarding
- * copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance with the License. You may obtain a
- * copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software distributed under the License
- * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
- * or implied. See the License for the specific language governing permissions and limitations under
- * the License.
- */
-package org.apache.geode.cache.persistence;
-
-import static org.apache.geode.cache.Region.SEPARATOR;
-import static org.apache.geode.internal.AvailablePortHelper.getRandomAvailableTCPPorts;
-import static org.apache.geode.test.awaitility.GeodeAwaitility.await;
-import static org.assertj.core.api.Assertions.assertThat;
-
-import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.nio.file.StandardCopyOption;
-
-import org.junit.Before;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.TemporaryFolder;
-
-import org.apache.geode.test.assertj.LogFileAssert;
-import org.apache.geode.test.junit.rules.gfsh.GfshRule;
-
-public class MissingDiskStoreAfterServerRestartAcceptanceTest {
-
-  private static final String SERVER_1_NAME = "server1";
-  private static final String SERVER_2_NAME = "server2";
-  private static final String SERVER_3_NAME = "server3";
-  private static final String SERVER_4_NAME = "server4";
-  private static final String SERVER_5_NAME = "server5";
-  private static final String LOCATOR_NAME = "locator";
-  private static final String REGION_NAME_WITH_UNDERSCORE = "_myRegion";
-
-  private Path server4Folder;
-  private Path server5Folder;
-  private TemporaryFolder temporaryFolder;
-
-  private int locatorPort;
-
-  private String startServer1Command;
-  private String startServer2Command;
-  private String startServer3Command;
-  private String startServer4Command;
-  private String startServer5Command;
-
-  private String createRegionWithUnderscoreCommand;
-  private String connectToLocatorCommand;
-  private String queryCommand;
-
-  @Rule
-  public GfshRule gfshRule = new GfshRule();
-
-  @Before
-  public void setUp() throws Exception {
-    temporaryFolder = gfshRule.getTemporaryFolder();
-    server4Folder = temporaryFolder.newFolder(SERVER_4_NAME).toPath().toAbsolutePath();
-    server5Folder = temporaryFolder.newFolder(SERVER_5_NAME).toPath().toAbsolutePath();
-
-    int[] ports = getRandomAvailableTCPPorts(6);
-    locatorPort = ports[0];
-    int server1Port = ports[1];
-    int server2Port = ports[2];
-    int server3Port = ports[3];
-    int server4Port = ports[4];
-    int server5Port = ports[5];
-
-    String startLocatorCommand = String.join(" ",
-        "start locator",
-        "--name=" + LOCATOR_NAME,
-        "--port=" + locatorPort,
-        "--locators=localhost[" + locatorPort + "]");
-
-    startServer1Command = String.join(" ",
-        "start server",
-        "--name=" + SERVER_1_NAME,
-        "--locators=localhost[" + locatorPort + "]",
-        "--server-port=" + server1Port);
-
-    startServer2Command = String.join(" ",
-        "start server",
-        "--name=" + SERVER_2_NAME,
-        "--locators=localhost[" + locatorPort + "]",
-        "--server-port=" + server2Port);
-
-    startServer3Command = String.join(" ",
-        "start server",
-        "--name=" + SERVER_3_NAME,
-        "--locators=localhost[" + locatorPort + "]",
-        "--server-port=" + server3Port);
-
-    startServer4Command = String.join(" ",
-        "start server",
-        "--name=" + SERVER_4_NAME,
-        "--dir=" + server4Folder,
-        "--locators=localhost[" + locatorPort + "]",
-        "--server-port=" + server4Port);
-
-    startServer5Command = String.join(" ",
-        "start server",
-        "--name=" + SERVER_5_NAME,
-        "--dir=" + server5Folder,
-        "--locators=localhost[" + locatorPort + "]",
-        "--server-port=" + server5Port);
-
-    createRegionWithUnderscoreCommand = String.join(" ",
-        "create region",
-        "--name=" + REGION_NAME_WITH_UNDERSCORE,
-        "--type=PARTITION_REDUNDANT_PERSISTENT",
-        "--redundant-copies=1",
-        "--enable-synchronous-disk=false");
-
-    connectToLocatorCommand = "connect --locator=localhost[" + locatorPort + "]";
-
-    queryCommand =
-        "query --query=\"select * from " + SEPARATOR + REGION_NAME_WITH_UNDERSCORE + "\"";
-
-    gfshRule.execute(startLocatorCommand, startServer1Command, startServer2Command,
-        startServer3Command, startServer4Command,
-        createRegionWithUnderscoreCommand);
-  }
-
-  @Test
-  public void serverLauncherUnderscore() throws IOException {
-    gfshRule.execute(connectToLocatorCommand, queryCommand);
-    gfshRule.execute(connectToLocatorCommand, "stop server --name=" + SERVER_4_NAME);
-    assertThat(
-        gfshRule.execute(connectToLocatorCommand, "show missing-disk-stores").getOutputText())
-            .contains("Missing Disk Stores");
-
-    Path server4Path = Paths.get(String.valueOf(server4Folder));
-    Path server5Path = Paths.get(String.valueOf(server5Folder));
-    Files.move(server4Path, server5Path, StandardCopyOption.REPLACE_EXISTING);
-
-    gfshRule.execute(startServer5Command);
-
-    await().untilAsserted(() -> {
-      String waitingForMembersMessage = String.format(
-          "Server server5 startup completed in");
-
-      LogFileAssert.assertThat(server5Folder.resolve(SERVER_5_NAME + ".log").toFile())
-          .exists()
-          .contains(waitingForMembersMessage);
-    });
-
-    String showDiskStoresOutput =
-        gfshRule.execute(connectToLocatorCommand, "show missing-disk-stores").getOutputText();
-    assertThat(showDiskStoresOutput).contains("No missing disk store found");
-  }
-}
diff --git a/geode-core/src/main/java/org/apache/geode/internal/cache/PartitionedRegionHelper.java b/geode-core/src/main/java/org/apache/geode/internal/cache/PartitionedRegionHelper.java
index 258e5b2..d7fcdee 100644
--- a/geode-core/src/main/java/org/apache/geode/internal/cache/PartitionedRegionHelper.java
+++ b/geode-core/src/main/java/org/apache/geode/internal/cache/PartitionedRegionHelper.java
@@ -761,11 +761,9 @@
 
 
   public static final String TWO_SEPARATORS = SEPARATOR + SEPARATOR;
-  public static final String THREE_SEPARATORS = TWO_SEPARATORS + SEPARATOR;
 
   public static String unescapePRPath(String escapedPath) {
     String path = escapedPath.replace('_', SEPARATOR_CHAR);
-    path = path.replace(THREE_SEPARATORS, SEPARATOR + "_");
     path = path.replace(TWO_SEPARATORS, "_");
     return path;
   }
diff --git a/geode-core/src/test/java/org/apache/geode/internal/cache/PartitionedRegionHelperJUnitTest.java b/geode-core/src/test/java/org/apache/geode/internal/cache/PartitionedRegionHelperJUnitTest.java
index 16c581c..b179f8b 100644
--- a/geode-core/src/test/java/org/apache/geode/internal/cache/PartitionedRegionHelperJUnitTest.java
+++ b/geode-core/src/test/java/org/apache/geode/internal/cache/PartitionedRegionHelperJUnitTest.java
@@ -15,7 +15,7 @@
 package org.apache.geode.internal.cache;
 
 import static org.apache.geode.cache.Region.SEPARATOR;
-import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.Assert.assertEquals;
 
 import org.junit.Test;
 
@@ -24,31 +24,21 @@
 
   @Test
   public void testEscapeUnescape() {
-    String bucketName =
-        PartitionedRegionHelper.getBucketName(SEPARATOR + "root" + SEPARATOR + "region", 5);
-    assertThat(bucketName).as("Name = " + bucketName).doesNotContain(SEPARATOR);
-    assertThat(PartitionedRegionHelper.getPRPath(bucketName))
-        .isEqualTo(SEPARATOR + "root" + SEPARATOR + "region");
+    {
+      String bucketName =
+          PartitionedRegionHelper.getBucketName(SEPARATOR + "root" + SEPARATOR + "region", 5);
+      assertEquals("Name = " + bucketName, -1, bucketName.indexOf(SEPARATOR));
+      assertEquals(SEPARATOR + "root" + SEPARATOR + "region",
+          PartitionedRegionHelper.getPRPath(bucketName));
+    }
 
-    bucketName =
-        PartitionedRegionHelper.getBucketName(SEPARATOR + "root" + SEPARATOR + "region_one", 5);
-    assertThat(bucketName).as("Name = " + bucketName).doesNotContain(SEPARATOR);
-    assertThat(PartitionedRegionHelper.getPRPath(bucketName))
-        .isEqualTo(SEPARATOR + "root" + SEPARATOR + "region_one");
+    {
+      String bucketName =
+          PartitionedRegionHelper.getBucketName(SEPARATOR + "root" + SEPARATOR + "region_one", 5);
+      assertEquals("Name = " + bucketName, -1, bucketName.indexOf(SEPARATOR));
+      assertEquals(SEPARATOR + "root" + SEPARATOR + "region_one",
+          PartitionedRegionHelper.getPRPath(bucketName));
+    }
   }
 
-  @Test
-  public void testEscapeUnescapeWhenRegionHasUnderscoreInTheName() {
-    String bucketName =
-        PartitionedRegionHelper.getBucketName(SEPARATOR + "_region", 5);
-    assertThat(bucketName).as("Name = " + bucketName).doesNotContain(SEPARATOR);
-    assertThat(PartitionedRegionHelper.getPRPath(bucketName))
-        .isEqualTo(SEPARATOR + "_region");
-
-    bucketName =
-        PartitionedRegionHelper.getBucketName(SEPARATOR + "root" + SEPARATOR + "_region_one", 5);
-    assertThat(bucketName).as("Name = " + bucketName).doesNotContain(SEPARATOR);
-    assertThat(PartitionedRegionHelper.getPRPath(bucketName))
-        .isEqualTo(SEPARATOR + "root" + SEPARATOR + "_region_one");
-  }
 }