diff --git a/java/com/google/gerrit/entities/BUILD b/java/com/google/gerrit/entities/BUILD
index c0f5de6..dbbcf71 100644
--- a/java/com/google/gerrit/entities/BUILD
+++ b/java/com/google/gerrit/entities/BUILD
@@ -10,6 +10,7 @@
     deps = [
         "//java/com/google/gerrit/common:annotations",
         "//java/com/google/gerrit/extensions:api",
+        "//java/com/google/gerrit/server:project_util",
         "//lib:gson",
         "//lib:guava",
         "//lib:jgit",
diff --git a/java/com/google/gerrit/entities/Project.java b/java/com/google/gerrit/entities/Project.java
index b587b1d..b43650b 100644
--- a/java/com/google/gerrit/entities/Project.java
+++ b/java/com/google/gerrit/entities/Project.java
@@ -23,6 +23,7 @@
 import com.google.gerrit.extensions.client.InheritableBoolean;
 import com.google.gerrit.extensions.client.ProjectState;
 import com.google.gerrit.extensions.client.SubmitType;
+import com.google.gerrit.server.ProjectUtil;
 import java.io.Serializable;
 import java.util.Arrays;
 import java.util.HashMap;
@@ -61,7 +62,7 @@
 
     /** Parse a Project.NameKey out of a string representation. */
     public static NameKey parse(String str) {
-      return nameKey(KeyUtil.decode(str));
+      return nameKey(ProjectUtil.sanitizeProjectName(KeyUtil.decode(str)));
     }
 
     private final String name;
diff --git a/java/com/google/gerrit/server/BUILD b/java/com/google/gerrit/server/BUILD
index 2be3383..3338464 100644
--- a/java/com/google/gerrit/server/BUILD
+++ b/java/com/google/gerrit/server/BUILD
@@ -14,12 +14,22 @@
     "account/externalids/testing/ExternalIdTestUtil.java",
 ]
 
+PROJECT_UTIL_SRC = [
+    "ProjectUtil.java",
+]
+
 java_library(
     name = "constants",
     srcs = CONSTANTS_SRC,
     visibility = ["//visibility:public"],
 )
 
+java_library(
+    name = "project_util",
+    srcs = PROJECT_UTIL_SRC,
+    visibility = ["//visibility:public"],
+)
+
 # Giant kitchen-sink target.
 #
 # The only reason this hasn't been split up further is because we have too many
@@ -30,13 +40,14 @@
     name = "server",
     srcs = glob(
         ["**/*.java"],
-        exclude = CONSTANTS_SRC + GERRIT_GLOBAL_MODULE_SRC + TESTING_SRC,
+        exclude = CONSTANTS_SRC + GERRIT_GLOBAL_MODULE_SRC + TESTING_SRC + PROJECT_UTIL_SRC,
     ),
     resource_strip_prefix = "resources",
     resources = ["//resources/com/google/gerrit/server"],
     visibility = ["//visibility:public"],
     deps = [
         ":constants",
+        ":project_util",
         "//java/com/google/gerrit/common:annotations",
         "//java/com/google/gerrit/common:server",
         "//java/com/google/gerrit/entities",
diff --git a/java/com/google/gerrit/server/BranchUtil.java b/java/com/google/gerrit/server/BranchUtil.java
new file mode 100644
index 0000000..78f693d
--- /dev/null
+++ b/java/com/google/gerrit/server/BranchUtil.java
@@ -0,0 +1,47 @@
+// Copyright (C) 2023 The Android Open Source Project
+//
+// Licensed 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 com.google.gerrit.server;
+
+import com.google.gerrit.entities.BranchNameKey;
+import com.google.gerrit.entities.RefNames;
+import com.google.gerrit.server.git.GitRepositoryManager;
+import java.io.IOException;
+import org.eclipse.jgit.errors.RepositoryNotFoundException;
+import org.eclipse.jgit.lib.Repository;
+
+public class BranchUtil {
+  /**
+   * Checks whether the specified branch exists.
+   *
+   * @param repoManager Git repository manager to open the git repository
+   * @param branch the branch for which it should be checked if it exists
+   * @return {@code true} if the specified branch exists or if {@code HEAD} points to this branch,
+   *     otherwise {@code false}
+   * @throws RepositoryNotFoundException the repository of the branch's project does not exist.
+   * @throws IOException error while retrieving the branch from the repository.
+   */
+  public static boolean branchExists(final GitRepositoryManager repoManager, BranchNameKey branch)
+      throws RepositoryNotFoundException, IOException {
+    try (Repository repo = repoManager.openRepository(branch.project())) {
+      boolean exists = repo.getRefDatabase().exactRef(branch.branch()) != null;
+      if (!exists) {
+        exists =
+            repo.getFullBranch().equals(branch.branch())
+                || RefNames.REFS_CONFIG.equals(branch.branch());
+      }
+      return exists;
+    }
+  }
+}
diff --git a/java/com/google/gerrit/server/ProjectUtil.java b/java/com/google/gerrit/server/ProjectUtil.java
index fa056b3..e87c8bf 100644
--- a/java/com/google/gerrit/server/ProjectUtil.java
+++ b/java/com/google/gerrit/server/ProjectUtil.java
@@ -14,38 +14,7 @@
 
 package com.google.gerrit.server;
 
-import com.google.gerrit.entities.BranchNameKey;
-import com.google.gerrit.entities.RefNames;
-import com.google.gerrit.server.git.GitRepositoryManager;
-import java.io.IOException;
-import org.eclipse.jgit.errors.RepositoryNotFoundException;
-import org.eclipse.jgit.lib.Repository;
-
 public class ProjectUtil {
-
-  /**
-   * Checks whether the specified branch exists.
-   *
-   * @param repoManager Git repository manager to open the git repository
-   * @param branch the branch for which it should be checked if it exists
-   * @return {@code true} if the specified branch exists or if {@code HEAD} points to this branch,
-   *     otherwise {@code false}
-   * @throws RepositoryNotFoundException the repository of the branch's project does not exist.
-   * @throws IOException error while retrieving the branch from the repository.
-   */
-  public static boolean branchExists(final GitRepositoryManager repoManager, BranchNameKey branch)
-      throws RepositoryNotFoundException, IOException {
-    try (Repository repo = repoManager.openRepository(branch.project())) {
-      boolean exists = repo.getRefDatabase().exactRef(branch.branch()) != null;
-      if (!exists) {
-        exists =
-            repo.getFullBranch().equals(branch.branch())
-                || RefNames.REFS_CONFIG.equals(branch.branch());
-      }
-      return exists;
-    }
-  }
-
   public static String sanitizeProjectName(String name) {
     name = stripGitSuffix(name);
     name = stripTrailingSlash(name);
diff --git a/java/com/google/gerrit/server/restapi/BUILD b/java/com/google/gerrit/server/restapi/BUILD
index dd0ec78d..4ce8c42 100644
--- a/java/com/google/gerrit/server/restapi/BUILD
+++ b/java/com/google/gerrit/server/restapi/BUILD
@@ -21,6 +21,7 @@
         "//java/com/google/gerrit/json",
         "//java/com/google/gerrit/metrics",
         "//java/com/google/gerrit/server",
+        "//java/com/google/gerrit/server:project_util",
         "//java/com/google/gerrit/server/ioutil",
         "//java/com/google/gerrit/server/logging",
         "//java/com/google/gerrit/server/util/time",
diff --git a/java/com/google/gerrit/server/restapi/change/Submit.java b/java/com/google/gerrit/server/restapi/change/Submit.java
index 5fc4f41..b1f1da5 100644
--- a/java/com/google/gerrit/server/restapi/change/Submit.java
+++ b/java/com/google/gerrit/server/restapi/change/Submit.java
@@ -43,11 +43,11 @@
 import com.google.gerrit.extensions.restapi.RestModifyView;
 import com.google.gerrit.extensions.restapi.UnprocessableEntityException;
 import com.google.gerrit.extensions.webui.UiAction;
+import com.google.gerrit.server.BranchUtil;
 import com.google.gerrit.server.ChangeUtil;
 import com.google.gerrit.server.CurrentUser;
 import com.google.gerrit.server.IdentifiedUser;
 import com.google.gerrit.server.PatchSetUtil;
-import com.google.gerrit.server.ProjectUtil;
 import com.google.gerrit.server.account.AccountResolver;
 import com.google.gerrit.server.change.ChangeJson;
 import com.google.gerrit.server.change.ChangeResource;
@@ -198,7 +198,7 @@
     Change change = rsrc.getChange();
     if (!change.isNew()) {
       throw new ResourceConflictException("change is " + ChangeUtil.status(change));
-    } else if (!ProjectUtil.branchExists(repoManager, change.getDest())) {
+    } else if (!BranchUtil.branchExists(repoManager, change.getDest())) {
       throw new ResourceConflictException(
           String.format("destination branch \"%s\" not found.", change.getDest().branch()));
     } else if (!rsrc.getPatchSet().id().equals(change.currentPatchSetId())) {
diff --git a/javatests/com/google/gerrit/acceptance/api/change/ChangeIdIT.java b/javatests/com/google/gerrit/acceptance/api/change/ChangeIdIT.java
index de73c00..1790133 100644
--- a/javatests/com/google/gerrit/acceptance/api/change/ChangeIdIT.java
+++ b/javatests/com/google/gerrit/acceptance/api/change/ChangeIdIT.java
@@ -54,6 +54,28 @@
   }
 
   @Test
+  public void projectChangeNumberReturnsChangeWhenProjectEndsWithSlash() throws Exception {
+    Project.NameKey p = projectOperations.newProject().create();
+    ChangeInfo ci = gApi.changes().create(new ChangeInput(p.get(), "master", "msg")).get();
+
+    ChangeInfo changeInfo = gApi.changes().id(p.get() + "/", ci._number).get();
+
+    assertThat(changeInfo.changeId).isEqualTo(ci.changeId);
+    assertThat(changeInfo.project).isEqualTo(p.get());
+  }
+
+  @Test
+  public void projectChangeNumberReturnsChangeWhenProjectEndsWithDotGit() throws Exception {
+    Project.NameKey p = projectOperations.newProject().create();
+    ChangeInfo ci = gApi.changes().create(new ChangeInput(p.get(), "master", "msg")).get();
+
+    ChangeInfo changeInfo = gApi.changes().id(p.get() + ".git", ci._number).get();
+
+    assertThat(changeInfo.changeId).isEqualTo(ci.changeId);
+    assertThat(changeInfo.project).isEqualTo(p.get());
+  }
+
+  @Test
   public void wrongProjectInProjectChangeNumberReturnsNotFound() throws Exception {
     ResourceNotFoundException thrown =
         assertThrows(