diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/LfsApiServlet.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/LfsApiServlet.java
index 833515d..4db35a9 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/lfs/LfsApiServlet.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/LfsApiServlet.java
@@ -30,6 +30,7 @@
 import com.google.gerrit.server.project.ProjectState;
 import com.google.inject.Inject;
 import com.google.inject.Singleton;
+import com.googlesource.gerrit.plugins.lfs.auth.LfsAuthUserProvider;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import org.eclipse.jgit.lfs.errors.LfsException;
diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/LfsGson.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/LfsGson.java
new file mode 100644
index 0000000..66398fe
--- /dev/null
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/LfsGson.java
@@ -0,0 +1,49 @@
+// Copyright (C) 2019 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.googlesource.gerrit.plugins.lfs;
+
+import com.google.gson.FieldNamingPolicy;
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonIOException;
+import com.google.gson.JsonSyntaxException;
+import com.google.inject.Singleton;
+import java.io.Reader;
+
+@Singleton
+public class LfsGson {
+  private final Gson gson;
+
+  LfsGson() {
+    this.gson =
+        new GsonBuilder()
+            .setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES)
+            .disableHtmlEscaping()
+            .create();
+  }
+
+  public void toJson(Object src, Appendable writer) throws JsonIOException {
+    gson.toJson(src, writer);
+  }
+
+  public String toJson(Object src) {
+    return gson.toJson(src);
+  }
+
+  public <T> T fromJson(Reader json, Class<T> classOfT)
+      throws JsonSyntaxException, JsonIOException {
+    return gson.fromJson(json, classOfT);
+  }
+}
diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/PutLfsGlobalConfig.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/PutLfsGlobalConfig.java
index 7ebd1ef..20865c3 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/lfs/PutLfsGlobalConfig.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/PutLfsGlobalConfig.java
@@ -49,7 +49,7 @@
 
   private final String pluginName;
   private final AllProjectsName allProjectsName;
-  private final PermissionBackend permissionBackned;
+  private final PermissionBackend permissionBackend;
   private final Provider<CurrentUser> self;
   private final Provider<MetaDataUpdate.User> metaDataUpdateFactory;
   private final LfsConfigurationFactory lfsConfigFactory;
@@ -59,14 +59,14 @@
   PutLfsGlobalConfig(
       @PluginName String pluginName,
       AllProjectsName allProjectsName,
-      PermissionBackend permissionBackned,
+      PermissionBackend permissionBackend,
       Provider<CurrentUser> self,
       Provider<MetaDataUpdate.User> metaDataUpdateFactory,
       LfsConfigurationFactory lfsConfigFactory,
       GetLfsGlobalConfig get) {
     this.pluginName = pluginName;
     this.allProjectsName = allProjectsName;
-    this.permissionBackned = permissionBackned;
+    this.permissionBackend = permissionBackend;
     this.self = self;
     this.metaDataUpdateFactory = metaDataUpdateFactory;
     this.lfsConfigFactory = lfsConfigFactory;
@@ -80,7 +80,7 @@
     Project.NameKey projectName = resource.getNameKey();
 
     if (!(projectName.equals(allProjectsName)
-        && permissionBackned.user(user).testOrFalse(ADMINISTRATE_SERVER))) {
+        && permissionBackend.user(user).testOrFalse(ADMINISTRATE_SERVER))) {
       throw new ResourceNotFoundException();
     }
 
diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/SshModule.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/SshModule.java
index e74e813..931ffce 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/lfs/SshModule.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/SshModule.java
@@ -17,6 +17,7 @@
 import com.google.gerrit.extensions.registration.DynamicItem;
 import com.google.gerrit.sshd.PluginCommandModule;
 import com.google.gerrit.sshd.plugin.LfsPluginAuthCommand;
+import com.googlesource.gerrit.plugins.lfs.auth.LfsSshAuth;
 
 public class SshModule extends PluginCommandModule {
 
diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/AuthInfo.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/auth/AuthInfo.java
similarity index 93%
rename from src/main/java/com/googlesource/gerrit/plugins/lfs/AuthInfo.java
rename to src/main/java/com/googlesource/gerrit/plugins/lfs/auth/AuthInfo.java
index 4336ed5..9b765d2 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/lfs/AuthInfo.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/auth/AuthInfo.java
@@ -12,8 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package com.googlesource.gerrit.plugins.lfs;
+package com.googlesource.gerrit.plugins.lfs.auth;
 
+import com.googlesource.gerrit.plugins.lfs.LfsDateTime;
 import java.time.Instant;
 
 public class AuthInfo {
diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/ExpiringAction.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/auth/ExpiringAction.java
similarity index 95%
rename from src/main/java/com/googlesource/gerrit/plugins/lfs/ExpiringAction.java
rename to src/main/java/com/googlesource/gerrit/plugins/lfs/auth/ExpiringAction.java
index d3255a1..133a386 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/lfs/ExpiringAction.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/auth/ExpiringAction.java
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package com.googlesource.gerrit.plugins.lfs;
+package com.googlesource.gerrit.plugins.lfs.auth;
 
 import static org.eclipse.jgit.util.HttpSupport.HDR_AUTHORIZATION;
 
diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/LfsAuthToken.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/auth/LfsAuthToken.java
similarity index 97%
rename from src/main/java/com/googlesource/gerrit/plugins/lfs/LfsAuthToken.java
rename to src/main/java/com/googlesource/gerrit/plugins/lfs/auth/LfsAuthToken.java
index a603705..7abce2c 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/lfs/LfsAuthToken.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/auth/LfsAuthToken.java
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package com.googlesource.gerrit.plugins.lfs;
+package com.googlesource.gerrit.plugins.lfs.auth;
 
 import com.google.common.base.Joiner;
 import com.google.common.base.Splitter;
diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/LfsAuthUserProvider.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/auth/LfsAuthUserProvider.java
similarity index 93%
rename from src/main/java/com/googlesource/gerrit/plugins/lfs/LfsAuthUserProvider.java
rename to src/main/java/com/googlesource/gerrit/plugins/lfs/auth/LfsAuthUserProvider.java
index fdb89b5..fcd4736 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/lfs/LfsAuthUserProvider.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/auth/LfsAuthUserProvider.java
@@ -12,9 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package com.googlesource.gerrit.plugins.lfs;
+package com.googlesource.gerrit.plugins.lfs.auth;
 
-import static com.googlesource.gerrit.plugins.lfs.LfsSshRequestAuthorizer.SSH_AUTH_PREFIX;
+import static com.googlesource.gerrit.plugins.lfs.auth.LfsSshRequestAuthorizer.SSH_AUTH_PREFIX;
 
 import com.google.common.base.Strings;
 import com.google.gerrit.server.AnonymousUser;
diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/LfsCipher.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/auth/LfsCipher.java
similarity index 98%
rename from src/main/java/com/googlesource/gerrit/plugins/lfs/LfsCipher.java
rename to src/main/java/com/googlesource/gerrit/plugins/lfs/auth/LfsCipher.java
index 2f97695..710b3c1 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/lfs/LfsCipher.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/auth/LfsCipher.java
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package com.googlesource.gerrit.plugins.lfs;
+package com.googlesource.gerrit.plugins.lfs.auth;
 
 import static java.nio.charset.StandardCharsets.UTF_8;
 
diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/LfsSshAuth.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/auth/LfsSshAuth.java
similarity index 84%
rename from src/main/java/com/googlesource/gerrit/plugins/lfs/LfsSshAuth.java
rename to src/main/java/com/googlesource/gerrit/plugins/lfs/auth/LfsSshAuth.java
index 08d7ca7..9fd57b9 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/lfs/LfsSshAuth.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/auth/LfsSshAuth.java
@@ -12,19 +12,17 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package com.googlesource.gerrit.plugins.lfs;
+package com.googlesource.gerrit.plugins.lfs.auth;
 
 import com.google.gerrit.server.CurrentUser;
 import com.google.gerrit.server.config.CanonicalWebUrl;
 import com.google.gerrit.sshd.BaseCommand.Failure;
 import com.google.gerrit.sshd.BaseCommand.UnloggedFailure;
 import com.google.gerrit.sshd.plugin.LfsPluginAuthCommand;
-import com.google.gson.FieldNamingPolicy;
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
 import com.google.inject.Inject;
 import com.google.inject.Provider;
 import com.google.inject.Singleton;
+import com.googlesource.gerrit.plugins.lfs.LfsGson;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.List;
@@ -33,17 +31,16 @@
 public class LfsSshAuth implements LfsPluginAuthCommand.LfsSshPluginAuth {
   private final LfsSshRequestAuthorizer auth;
   private final String canonicalWebUrl;
-  private final Gson gson;
+  private final LfsGson gson;
 
   @Inject
-  LfsSshAuth(LfsSshRequestAuthorizer auth, @CanonicalWebUrl Provider<String> canonicalWebUrl) {
+  LfsSshAuth(
+      LfsSshRequestAuthorizer auth,
+      @CanonicalWebUrl Provider<String> canonicalWebUrl,
+      LfsGson gson) {
     this.auth = auth;
     this.canonicalWebUrl = canonicalWebUrl.get();
-    this.gson =
-        new GsonBuilder()
-            .setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES)
-            .disableHtmlEscaping()
-            .create();
+    this.gson = gson;
   }
 
   @Override
diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/LfsSshRequestAuthorizer.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/auth/LfsSshRequestAuthorizer.java
similarity index 96%
rename from src/main/java/com/googlesource/gerrit/plugins/lfs/LfsSshRequestAuthorizer.java
rename to src/main/java/com/googlesource/gerrit/plugins/lfs/auth/LfsSshRequestAuthorizer.java
index 266d8d0..14803ed 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/lfs/LfsSshRequestAuthorizer.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/auth/LfsSshRequestAuthorizer.java
@@ -12,12 +12,14 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package com.googlesource.gerrit.plugins.lfs;
+package com.googlesource.gerrit.plugins.lfs.auth;
 
 import com.google.common.flogger.FluentLogger;
 import com.google.gerrit.server.CurrentUser;
 import com.google.inject.Inject;
 import com.google.inject.Singleton;
+import com.googlesource.gerrit.plugins.lfs.LfsConfigurationFactory;
+import com.googlesource.gerrit.plugins.lfs.LfsDateTime;
 import java.time.Instant;
 import java.util.ArrayList;
 import java.util.List;
diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/fs/LfsFsRequestAuthorizer.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/fs/LfsFsRequestAuthorizer.java
index 1336884..279217b 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/lfs/fs/LfsFsRequestAuthorizer.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/fs/LfsFsRequestAuthorizer.java
@@ -16,10 +16,10 @@
 
 import com.google.inject.Inject;
 import com.google.inject.Singleton;
-import com.googlesource.gerrit.plugins.lfs.AuthInfo;
-import com.googlesource.gerrit.plugins.lfs.LfsAuthToken;
-import com.googlesource.gerrit.plugins.lfs.LfsCipher;
 import com.googlesource.gerrit.plugins.lfs.LfsDateTime;
+import com.googlesource.gerrit.plugins.lfs.auth.AuthInfo;
+import com.googlesource.gerrit.plugins.lfs.auth.LfsAuthToken;
+import com.googlesource.gerrit.plugins.lfs.auth.LfsCipher;
 import java.time.Instant;
 import java.util.ArrayList;
 import java.util.List;
diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/fs/LocalLargeFileRepository.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/fs/LocalLargeFileRepository.java
index 0a6ef34..f67e0bb 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/lfs/fs/LocalLargeFileRepository.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/fs/LocalLargeFileRepository.java
@@ -22,11 +22,11 @@
 import com.google.gerrit.extensions.annotations.PluginData;
 import com.google.inject.Inject;
 import com.google.inject.assistedinject.Assisted;
-import com.googlesource.gerrit.plugins.lfs.AuthInfo;
-import com.googlesource.gerrit.plugins.lfs.ExpiringAction;
 import com.googlesource.gerrit.plugins.lfs.LfsBackend;
 import com.googlesource.gerrit.plugins.lfs.LfsConfigurationFactory;
 import com.googlesource.gerrit.plugins.lfs.LfsGlobalConfig;
+import com.googlesource.gerrit.plugins.lfs.auth.AuthInfo;
+import com.googlesource.gerrit.plugins.lfs.auth.ExpiringAction;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsGetLocksAction.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsGetLocksAction.java
index b730624..a84d458 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsGetLocksAction.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsGetLocksAction.java
@@ -29,7 +29,7 @@
 import com.google.gerrit.server.project.ProjectState;
 import com.google.inject.Inject;
 import com.google.inject.assistedinject.Assisted;
-import com.googlesource.gerrit.plugins.lfs.LfsAuthUserProvider;
+import com.googlesource.gerrit.plugins.lfs.auth.LfsAuthUserProvider;
 import java.io.IOException;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsLocksAction.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsLocksAction.java
index 6cf43e0..02c77f5 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsLocksAction.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsLocksAction.java
@@ -31,7 +31,7 @@
 import com.google.gerrit.server.permissions.PermissionBackendException;
 import com.google.gerrit.server.project.ProjectCache;
 import com.google.gerrit.server.project.ProjectState;
-import com.googlesource.gerrit.plugins.lfs.LfsAuthUserProvider;
+import com.googlesource.gerrit.plugins.lfs.auth.LfsAuthUserProvider;
 import com.googlesource.gerrit.plugins.lfs.locks.LfsLocksHandler.LfsLockExistsException;
 import java.io.IOException;
 import org.eclipse.jgit.lfs.errors.LfsException;
diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsLocksContext.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsLocksContext.java
index 7ac56c7..5e4094c 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsLocksContext.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsLocksContext.java
@@ -21,9 +21,7 @@
 import com.google.common.base.Supplier;
 import com.google.common.base.Suppliers;
 import com.google.common.flogger.FluentLogger;
-import com.google.gson.FieldNamingPolicy;
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
+import com.googlesource.gerrit.plugins.lfs.LfsGson;
 import java.io.BufferedReader;
 import java.io.BufferedWriter;
 import java.io.IOException;
@@ -43,9 +41,9 @@
   private final HttpServletResponse res;
   private final Supplier<Writer> writer;
   private final Supplier<Reader> reader;
-  private final Gson gson;
+  private final LfsGson gson;
 
-  LfsLocksContext(final HttpServletRequest req, final HttpServletResponse res) {
+  LfsLocksContext(LfsGson gson, final HttpServletRequest req, final HttpServletResponse res) {
     this.path = req.getPathInfo().startsWith("/") ? req.getPathInfo() : "/" + req.getPathInfo();
     this.req = req;
     this.res = res;
@@ -73,7 +71,7 @@
                 }
               }
             });
-    this.gson = createGson();
+    this.gson = gson;
     setLfsResponseType();
   }
 
@@ -118,13 +116,6 @@
     res.setContentType(CONTENTTYPE_VND_GIT_LFS_JSON);
   }
 
-  private Gson createGson() {
-    return new GsonBuilder()
-        .setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES)
-        .disableHtmlEscaping()
-        .create();
-  }
-
   /** copied from org.eclipse.jgit.lfs.server.LfsProtocolServlet.Error */
   static class Error {
     String message;
diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsLocksServlet.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsLocksServlet.java
index 9cdeb62..1e6146d 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsLocksServlet.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsLocksServlet.java
@@ -20,6 +20,7 @@
 
 import com.google.inject.Inject;
 import com.google.inject.Singleton;
+import com.googlesource.gerrit.plugins.lfs.LfsGson;
 import java.io.IOException;
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServlet;
@@ -35,24 +36,27 @@
 
   private final LfsGetLocksAction.Factory getters;
   private final LfsPutLocksAction.Factory putters;
+  private final LfsGson gson;
 
   @Inject
-  LfsLocksServlet(LfsGetLocksAction.Factory getters, LfsPutLocksAction.Factory putters) {
+  LfsLocksServlet(
+      LfsGetLocksAction.Factory getters, LfsPutLocksAction.Factory putters, LfsGson gson) {
     this.getters = getters;
     this.putters = putters;
+    this.gson = gson;
   }
 
   @Override
   protected void doGet(HttpServletRequest req, HttpServletResponse resp)
       throws ServletException, IOException {
-    LfsLocksContext context = new LfsLocksContext(req, resp);
+    LfsLocksContext context = new LfsLocksContext(gson, req, resp);
     getters.create(context).run();
   }
 
   @Override
   protected void doPost(HttpServletRequest req, HttpServletResponse resp)
       throws ServletException, IOException {
-    LfsLocksContext context = new LfsLocksContext(req, resp);
+    LfsLocksContext context = new LfsLocksContext(gson, req, resp);
     putters.create(context).run();
   }
 }
diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsProjectLocks.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsProjectLocks.java
index 4276fba..4526fa4 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsProjectLocks.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsProjectLocks.java
@@ -19,12 +19,10 @@
 import com.google.common.flogger.FluentLogger;
 import com.google.gerrit.reviewdb.client.Project;
 import com.google.gerrit.server.CurrentUser;
-import com.google.gson.FieldNamingPolicy;
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
 import com.google.inject.Inject;
 import com.google.inject.assistedinject.Assisted;
 import com.googlesource.gerrit.plugins.lfs.LfsDateTime;
+import com.googlesource.gerrit.plugins.lfs.LfsGson;
 import com.googlesource.gerrit.plugins.lfs.locks.LfsLocksHandler.LfsLockExistsException;
 import java.io.IOException;
 import java.io.OutputStreamWriter;
@@ -44,11 +42,7 @@
   }
 
   private static final FluentLogger log = FluentLogger.forEnclosingClass();
-  private static final Gson gson =
-      new GsonBuilder()
-          .setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES)
-          .disableHtmlEscaping()
-          .create();
+  private final LfsGson gson;
   private final PathToLockId toLockId;
   private final String project;
   private final Path locksPath;
@@ -56,7 +50,11 @@
 
   @Inject
   LfsProjectLocks(
-      PathToLockId toLockId, LfsLocksPathProvider locksPath, @Assisted Project.NameKey project) {
+      LfsGson gson,
+      PathToLockId toLockId,
+      LfsLocksPathProvider locksPath,
+      @Assisted Project.NameKey project) {
+    this.gson = gson;
     this.toLockId = toLockId;
     this.project = project.get();
     this.locksPath = Paths.get(locksPath.get(), this.project);
diff --git a/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsPutLocksAction.java b/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsPutLocksAction.java
index 39c7861..9e0e23d 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsPutLocksAction.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/lfs/locks/LfsPutLocksAction.java
@@ -29,7 +29,7 @@
 import com.google.gerrit.server.project.ProjectState;
 import com.google.inject.Inject;
 import com.google.inject.assistedinject.Assisted;
-import com.googlesource.gerrit.plugins.lfs.LfsAuthUserProvider;
+import com.googlesource.gerrit.plugins.lfs.auth.LfsAuthUserProvider;
 import java.io.IOException;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
diff --git a/src/test/java/com/googlesource/gerrit/plugins/lfs/LfsAuthTokenTest.java b/src/test/java/com/googlesource/gerrit/plugins/lfs/auth/LfsAuthTokenTest.java
similarity index 96%
rename from src/test/java/com/googlesource/gerrit/plugins/lfs/LfsAuthTokenTest.java
rename to src/test/java/com/googlesource/gerrit/plugins/lfs/auth/LfsAuthTokenTest.java
index 5a72637..bdf7c21 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/lfs/LfsAuthTokenTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/lfs/auth/LfsAuthTokenTest.java
@@ -12,10 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package com.googlesource.gerrit.plugins.lfs;
+package com.googlesource.gerrit.plugins.lfs.auth;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import com.googlesource.gerrit.plugins.lfs.LfsDateTime;
 import java.time.Instant;
 import java.util.ArrayList;
 import java.util.List;
diff --git a/src/test/java/com/googlesource/gerrit/plugins/lfs/LfsCipherTest.java b/src/test/java/com/googlesource/gerrit/plugins/lfs/auth/LfsCipherTest.java
similarity index 97%
rename from src/test/java/com/googlesource/gerrit/plugins/lfs/LfsCipherTest.java
rename to src/test/java/com/googlesource/gerrit/plugins/lfs/auth/LfsCipherTest.java
index b092a48..08d8dc8 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/lfs/LfsCipherTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/lfs/auth/LfsCipherTest.java
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package com.googlesource.gerrit.plugins.lfs;
+package com.googlesource.gerrit.plugins.lfs.auth;
 
 import static com.google.common.truth.Truth.assertThat;
 
diff --git a/src/test/java/com/googlesource/gerrit/plugins/lfs/fs/LfsFsRequestAuthorizerTest.java b/src/test/java/com/googlesource/gerrit/plugins/lfs/fs/LfsFsRequestAuthorizerTest.java
index 8cd7225..d2b38c2 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/lfs/fs/LfsFsRequestAuthorizerTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/lfs/fs/LfsFsRequestAuthorizerTest.java
@@ -17,8 +17,8 @@
 import static com.google.common.truth.Truth.assertThat;
 import static org.eclipse.jgit.lfs.lib.LongObjectId.zeroId;
 
-import com.googlesource.gerrit.plugins.lfs.AuthInfo;
-import com.googlesource.gerrit.plugins.lfs.LfsCipher;
+import com.googlesource.gerrit.plugins.lfs.auth.AuthInfo;
+import com.googlesource.gerrit.plugins.lfs.auth.LfsCipher;
 import com.googlesource.gerrit.plugins.lfs.fs.LfsFsRequestAuthorizer.Processor;
 import java.time.Instant;
 import org.eclipse.jgit.lfs.lib.LongObjectId;