diff --git a/src/main/scala/gitbucket/core/controller/api/ApiRepositoryBranchControllerBase.scala b/src/main/scala/gitbucket/core/controller/api/ApiRepositoryBranchControllerBase.scala
index ac26f3b..6ec5635 100644
--- a/src/main/scala/gitbucket/core/controller/api/ApiRepositoryBranchControllerBase.scala
+++ b/src/main/scala/gitbucket/core/controller/api/ApiRepositoryBranchControllerBase.scala
@@ -1,11 +1,11 @@
 package gitbucket.core.controller.api
-import gitbucket.core.api._
+import gitbucket.core.api.*
 import gitbucket.core.controller.ControllerBase
 import gitbucket.core.service.{AccountService, ProtectedBranchService, RepositoryService}
-import gitbucket.core.util._
-import gitbucket.core.util.Directory._
-import gitbucket.core.util.Implicits._
-import gitbucket.core.util.JGitUtil.getBranches
+import gitbucket.core.util.*
+import gitbucket.core.util.Directory.*
+import gitbucket.core.util.Implicits.*
+import gitbucket.core.util.JGitUtil.getBranchesNoMergeInfo
 import org.eclipse.jgit.api.Git
 import org.scalatra.NoContent
 
@@ -30,10 +30,9 @@
     Using.resource(Git.open(getRepositoryDir(repository.owner, repository.name))) { git =>
       JsonFormat(
         JGitUtil
-          .getBranches(
+          .getBranchesNoMergeInfo(
             git = git,
-            defaultBranch = repository.repository.defaultBranch,
-            origin = repository.repository.originUserName.isEmpty
+            defaultBranch = repository.repository.defaultBranch
           )
           .map { br =>
             ApiBranchForList(br.name, ApiBranchCommit(br.commitId))
@@ -50,10 +49,9 @@
     Using.resource(Git.open(getRepositoryDir(repository.owner, repository.name))) { git =>
       (for {
         branch <- params.get("splat") if repository.branchList.contains(branch)
-        br <- getBranches(
+        br <- getBranchesNoMergeInfo(
           git,
-          repository.repository.defaultBranch,
-          repository.repository.originUserName.isEmpty
+          repository.repository.defaultBranch
         ).find(_.name == branch)
       } yield {
         val protection = getProtectedBranchInfo(repository.owner, repository.name, branch)
@@ -273,15 +271,14 @@
    * https://developer.github.com/v3/repos/#enabling-and-disabling-branch-protection
    */
   patch("/api/v3/repos/:owner/:repository/branches/*")(ownerOnly { repository =>
-    import gitbucket.core.api._
+    import gitbucket.core.api.*
     Using.resource(Git.open(getRepositoryDir(repository.owner, repository.name))) { git =>
       (for {
         branch <- params.get("splat") if repository.branchList.contains(branch)
         protection <- extractFromJsonBody[ApiBranchProtection.EnablingAndDisabling].map(_.protection)
-        br <- getBranches(
+        br <- getBranchesNoMergeInfo(
           git,
-          repository.repository.defaultBranch,
-          repository.repository.originUserName.isEmpty
+          repository.repository.defaultBranch
         ).find(_.name == branch)
       } yield {
         if (protection.enabled) {
diff --git a/src/main/scala/gitbucket/core/controller/api/ApiRepositoryCommitControllerBase.scala b/src/main/scala/gitbucket/core/controller/api/ApiRepositoryCommitControllerBase.scala
index 0022c19..c4c5322 100644
--- a/src/main/scala/gitbucket/core/controller/api/ApiRepositoryCommitControllerBase.scala
+++ b/src/main/scala/gitbucket/core/controller/api/ApiRepositoryCommitControllerBase.scala
@@ -4,28 +4,21 @@
 import gitbucket.core.model.Account
 import gitbucket.core.service.{AccountService, CommitsService, ProtectedBranchService}
 import gitbucket.core.util.Directory.getRepositoryDir
-import gitbucket.core.util.Implicits._
-import gitbucket.core.util.JGitUtil.{CommitInfo, getBranches, getBranchesOfCommit}
+import gitbucket.core.util.Implicits.*
+import gitbucket.core.util.JGitUtil.{CommitInfo, getBranchesNoMergeInfo, getBranchesOfCommit}
 import gitbucket.core.util.{JGitUtil, ReferrerAuthenticator, RepositoryName}
 import org.eclipse.jgit.api.Git
 import org.eclipse.jgit.revwalk.RevWalk
-import org.eclipse.jgit.revwalk.filter.{
-  AndRevFilter,
-  AuthorRevFilter,
-  CommitTimeRevFilter,
-  MaxCountRevFilter,
-  RevFilter,
-  SkipRevFilter
-}
+import org.eclipse.jgit.revwalk.filter.*
 import org.eclipse.jgit.treewalk.filter.{AndTreeFilter, PathFilterGroup, TreeFilter}
-import scala.collection.mutable.ListBuffer
-import scala.jdk.CollectionConverters._
-import scala.util.Using
-import math.min
-import java.time.LocalDateTime
-import java.time.format.DateTimeFormatter._
+
+import java.time.format.DateTimeFormatter.*
+import java.time.{LocalDateTime, ZoneOffset}
 import java.util.Date
-import java.time.ZoneOffset
+import scala.collection.mutable.ListBuffer
+import scala.jdk.CollectionConverters.*
+import scala.math.min
+import scala.util.Using
 
 trait ApiRepositoryCommitControllerBase extends ControllerBase {
   self: AccountService with CommitsService with ProtectedBranchService with ReferrerAuthenticator =>
@@ -166,7 +159,7 @@
     Using.resource(Git.open(getRepositoryDir(repository.owner, repository.name))) { git =>
       val apiBranchForCommits = for {
         branch <- getBranchesOfCommit(git, sha)
-        br <- getBranches(git, branch, repository.repository.originUserName.isEmpty).find(_.name == branch)
+        br <- getBranchesNoMergeInfo(git, branch).find(_.name == branch)
       } yield {
         val protection = getProtectedBranchInfo(repository.owner, repository.name, branch)
         ApiBranchForHeadCommit(branch, ApiBranchCommit(br.commitId), protection.enabled)
diff --git a/src/main/scala/gitbucket/core/service/PullRequestService.scala b/src/main/scala/gitbucket/core/service/PullRequestService.scala
index 7cf6f13..0910e3a 100644
--- a/src/main/scala/gitbucket/core/service/PullRequestService.scala
+++ b/src/main/scala/gitbucket/core/service/PullRequestService.scala
@@ -2,26 +2,26 @@
 
 import com.github.difflib.DiffUtils
 import com.github.difflib.patch.DeltaType
-import gitbucket.core.model.{CommitComments => _, Session => _, _}
-import gitbucket.core.model.Profile._
-import gitbucket.core.model.Profile.profile.blockingApi._
-import gitbucket.core.service.RepositoryService.RepositoryInfo
 import gitbucket.core.api.JsonFormat
 import gitbucket.core.controller.Context
+import gitbucket.core.model.Profile.*
+import gitbucket.core.model.Profile.profile.blockingApi.*
 import gitbucket.core.model.activity.OpenPullRequestInfo
+import gitbucket.core.model.{CommitComments as _, Session as _, *}
 import gitbucket.core.plugin.PluginRegistry
+import gitbucket.core.service.RepositoryService.RepositoryInfo
 import gitbucket.core.service.SystemSettingsService.SystemSettings
-import gitbucket.core.util.Directory._
-import gitbucket.core.util.Implicits._
+import gitbucket.core.util.Directory.*
+import gitbucket.core.util.Implicits.*
 import gitbucket.core.util.JGitUtil
-import gitbucket.core.util.StringUtil._
-import gitbucket.core.util.JGitUtil.{CommitInfo, DiffInfo, getBranches}
+import gitbucket.core.util.JGitUtil.{CommitInfo, DiffInfo, getBranchesNoMergeInfo}
+import gitbucket.core.util.StringUtil.*
 import gitbucket.core.view
 import gitbucket.core.view.helpers
 import org.eclipse.jgit.api.Git
 import org.eclipse.jgit.lib.ObjectId
 
-import scala.jdk.CollectionConverters._
+import scala.jdk.CollectionConverters.*
 import scala.util.Using
 
 trait PullRequestService {
@@ -32,7 +32,7 @@
     with RepositoryService
     with MergeService
     with ActivityService =>
-  import PullRequestService._
+  import PullRequestService.*
 
   def getPullRequest(owner: String, repository: String, issueId: Int)(implicit
     s: Session
@@ -318,7 +318,7 @@
         base.foreach { _base =>
           if (pr.branch != _base) {
             Using.resource(Git.open(getRepositoryDir(repository.owner, repository.name))) { git =>
-              getBranches(git, repository.repository.defaultBranch, origin = true)
+              getBranchesNoMergeInfo(git, repository.repository.defaultBranch)
                 .find(_.name == _base)
                 .foreach(br => updateBaseBranch(repository.owner, repository.name, issueId, br.name, br.commitId))
             }
diff --git a/src/main/scala/gitbucket/core/servlet/GitAuthenticationFilter.scala b/src/main/scala/gitbucket/core/servlet/GitAuthenticationFilter.scala
index 5cbe686..4f6574d 100644
--- a/src/main/scala/gitbucket/core/servlet/GitAuthenticationFilter.scala
+++ b/src/main/scala/gitbucket/core/servlet/GitAuthenticationFilter.scala
@@ -23,9 +23,9 @@
 
   private val logger = LoggerFactory.getLogger(classOf[GitAuthenticationFilter])
 
-  def init(config: FilterConfig) = {}
+  override def init(config: FilterConfig) = {}
 
-  def destroy(): Unit = {}
+  override def destroy(): Unit = {}
 
   def doFilter(req: ServletRequest, res: ServletResponse, chain: FilterChain): Unit = {
     val request = req.asInstanceOf[HttpServletRequest]
diff --git a/src/main/scala/gitbucket/core/servlet/SessionCleanupListener.scala b/src/main/scala/gitbucket/core/servlet/SessionCleanupListener.scala
index 97ab13b..5bf38d8 100644
--- a/src/main/scala/gitbucket/core/servlet/SessionCleanupListener.scala
+++ b/src/main/scala/gitbucket/core/servlet/SessionCleanupListener.scala
@@ -1,17 +1,18 @@
 package gitbucket.core.servlet
 
-import javax.servlet.http.{HttpSessionEvent, HttpSessionListener}
-import gitbucket.core.util.Directory
+import gitbucket.core.util.Directory.*
 import org.apache.commons.io.FileUtils
-import Directory._
+
+import javax.servlet.http.{HttpSessionEvent, HttpSessionListener}
 
 /**
  * Removes session associated temporary files when session is destroyed.
  */
 class SessionCleanupListener extends HttpSessionListener {
 
-  def sessionCreated(se: HttpSessionEvent): Unit = {}
+  override def sessionCreated(se: HttpSessionEvent): Unit = {}
 
-  def sessionDestroyed(se: HttpSessionEvent): Unit = FileUtils.deleteDirectory(getTemporaryDir(se.getSession.getId))
+  override def sessionDestroyed(se: HttpSessionEvent): Unit =
+    FileUtils.deleteDirectory(getTemporaryDir(se.getSession.getId))
 
 }
diff --git a/src/main/scala/gitbucket/core/servlet/TransactionFilter.scala b/src/main/scala/gitbucket/core/servlet/TransactionFilter.scala
index 8c4f335..b640485 100644
--- a/src/main/scala/gitbucket/core/servlet/TransactionFilter.scala
+++ b/src/main/scala/gitbucket/core/servlet/TransactionFilter.scala
@@ -17,9 +17,9 @@
 
   private val logger = LoggerFactory.getLogger(classOf[TransactionFilter])
 
-  def init(config: FilterConfig) = {}
+  override def init(config: FilterConfig): Unit = {}
 
-  def destroy(): Unit = {}
+  override def destroy(): Unit = {}
 
   def doFilter(req: ServletRequest, res: ServletResponse, chain: FilterChain): Unit = {
     val servletPath = req.asInstanceOf[HttpServletRequest].getServletPath()
diff --git a/src/main/scala/gitbucket/core/util/JGitUtil.scala b/src/main/scala/gitbucket/core/util/JGitUtil.scala
index 1f4e501..9affb3e 100644
--- a/src/main/scala/gitbucket/core/util/JGitUtil.scala
+++ b/src/main/scala/gitbucket/core/util/JGitUtil.scala
@@ -248,6 +248,14 @@
 
   case class BranchMergeInfo(ahead: Int, behind: Int, isMerged: Boolean)
 
+  case class BranchInfoSimple(
+    name: String,
+    committerName: String,
+    commitTime: Date,
+    committerEmailAddress: String,
+    commitId: String
+  )
+
   case class BranchInfo(
     name: String,
     committerName: String,
@@ -1244,6 +1252,25 @@
     git.log.add(startCommit).addPath(path).setMaxCount(1).call.iterator.next
   }
 
+  def getBranchesNoMergeInfo(git: Git, defaultBranch: String): Seq[BranchInfoSimple] = {
+    val repo = git.getRepository
+    val defaultObject = repo.resolve(defaultBranch)
+
+    git.branchList.call.asScala.map { ref =>
+      val walk = new RevWalk(repo)
+      try {
+        val branchName = ref.getName.stripPrefix("refs/heads/")
+        val branchCommit = walk.parseCommit(ref.getObjectId)
+        val when = branchCommit.getCommitterIdent.getWhen
+        val committer = branchCommit.getCommitterIdent.getName
+        val committerEmail = branchCommit.getCommitterIdent.getEmailAddress
+        BranchInfoSimple(branchName, committer, when, committerEmail, ref.getObjectId.name)
+      } finally {
+        walk.dispose()
+      }
+    }.toSeq
+  }
+
   def getBranches(git: Git, defaultBranch: String, origin: Boolean): Seq[BranchInfo] = {
     val repo = git.getRepository
     val defaultObject = repo.resolve(defaultBranch)
diff --git a/src/test/scala/gitbucket/core/util/JGitUtilSpec.scala b/src/test/scala/gitbucket/core/util/JGitUtilSpec.scala
index 33664b8..cfeb094 100644
--- a/src/test/scala/gitbucket/core/util/JGitUtilSpec.scala
+++ b/src/test/scala/gitbucket/core/util/JGitUtilSpec.scala
@@ -1,12 +1,13 @@
 package gitbucket.core.util
 
-import GitSpecUtil._
+import gitbucket.core.util.GitSpecUtil.*
+import gitbucket.core.util.JGitUtil.BranchInfoSimple
 import org.apache.commons.io.IOUtils
 import org.eclipse.jgit.diff.DiffEntry.ChangeType
 import org.eclipse.jgit.lib.Constants
 import org.scalatest.funsuite.AnyFunSuite
 
-import scala.jdk.CollectionConverters._
+import scala.jdk.CollectionConverters.*
 
 class JGitUtilSpec extends AnyFunSuite {
 
@@ -173,6 +174,26 @@
     }
   }
 
+  test("getBranchesNoMergeInfo") {
+    withTestRepository { git =>
+      createFile(git, Constants.HEAD, "README.md", "body1", message = "commit1")
+      JGitUtil.createBranch(git, "main", "test1")
+
+      createFile(git, Constants.HEAD, "README.md", "body2", message = "commit2")
+      JGitUtil.createBranch(git, "main", "test2")
+
+      // getBranches
+      val branchesNMI = JGitUtil.getBranchesNoMergeInfo(git, "main")
+      val branches = JGitUtil.getBranches(git, "main", true)
+
+      assert(
+        branches.map(bi =>
+          BranchInfoSimple(bi.name, bi.committerName, bi.commitTime, bi.committerEmailAddress, bi.commitId)
+        ) == branchesNMI
+      )
+    }
+  }
+
   test("createTag, getTagsOfCommit and getTagsOnCommit") {
     withTestRepository { git =>
       createFile(git, Constants.HEAD, "README.md", "body1", message = "commit1")