diff --git a/java/com/google/gerrit/acceptance/testsuite/account/AccountOperationsImpl.java b/java/com/google/gerrit/acceptance/testsuite/account/AccountOperationsImpl.java
index 0228bac..ec2d75e 100644
--- a/java/com/google/gerrit/acceptance/testsuite/account/AccountOperationsImpl.java
+++ b/java/com/google/gerrit/acceptance/testsuite/account/AccountOperationsImpl.java
@@ -61,9 +61,9 @@
   private Account.Id createAccount(TestAccountCreation accountCreation) throws Exception {
     AccountsUpdate.AccountUpdater accountUpdater =
         (account, updateBuilder) ->
-            fillBuilder(updateBuilder, accountCreation, account.getAccount().getId());
+            fillBuilder(updateBuilder, accountCreation, account.getAccount().id());
     AccountState createdAccount = createAccount(accountUpdater);
-    return createdAccount.getAccount().getId();
+    return createdAccount.getAccount().id();
   }
 
   private AccountState createAccount(AccountsUpdate.AccountUpdater accountUpdater)
@@ -131,9 +131,9 @@
     private TestAccount toTestAccount(AccountState accountState) {
       Account account = accountState.getAccount();
       return TestAccount.builder()
-          .accountId(account.getId())
-          .preferredEmail(Optional.ofNullable(account.getPreferredEmail()))
-          .fullname(Optional.ofNullable(account.getFullName()))
+          .accountId(account.id())
+          .preferredEmail(Optional.ofNullable(account.preferredEmail()))
+          .fullname(Optional.ofNullable(account.fullName()))
           .username(accountState.getUserName())
           .active(accountState.getAccount().isActive())
           .build();
diff --git a/java/com/google/gerrit/elasticsearch/ElasticAccountIndex.java b/java/com/google/gerrit/elasticsearch/ElasticAccountIndex.java
index 60cdb64..10ecd68 100644
--- a/java/com/google/gerrit/elasticsearch/ElasticAccountIndex.java
+++ b/java/com/google/gerrit/elasticsearch/ElasticAccountIndex.java
@@ -85,7 +85,7 @@
       throw new StorageException(
           String.format(
               "Failed to replace account %s in index %s: %s",
-              as.getAccount().getId(), indexName, statusCode));
+              as.getAccount().id(), indexName, statusCode));
     }
   }
 
@@ -108,7 +108,7 @@
 
   @Override
   protected String getId(AccountState as) {
-    return as.getAccount().getId().toString();
+    return as.getAccount().id().toString();
   }
 
   @Override
diff --git a/java/com/google/gerrit/gpg/server/DeleteGpgKey.java b/java/com/google/gerrit/gpg/server/DeleteGpgKey.java
index a1217b3..24bfd4f 100644
--- a/java/com/google/gerrit/gpg/server/DeleteGpgKey.java
+++ b/java/com/google/gerrit/gpg/server/DeleteGpgKey.java
@@ -105,7 +105,7 @@
           } catch (EmailException e) {
             logger.atSevere().withCause(e).log(
                 "Cannot send GPG key deletion message to %s",
-                rsrc.getUser().getAccount().getPreferredEmail());
+                rsrc.getUser().getAccount().preferredEmail());
           }
           break;
         case FORCED:
diff --git a/java/com/google/gerrit/gpg/server/PostGpgKeys.java b/java/com/google/gerrit/gpg/server/PostGpgKeys.java
index 986d5ff..526a834 100644
--- a/java/com/google/gerrit/gpg/server/PostGpgKeys.java
+++ b/java/com/google/gerrit/gpg/server/PostGpgKeys.java
@@ -137,7 +137,7 @@
         ExternalId.Key extIdKey = toExtIdKey(key.getFingerprint());
         Account account = getAccountByExternalId(extIdKey);
         if (account != null) {
-          if (!account.getId().equals(rsrc.getUser().getAccountId())) {
+          if (!account.id().equals(rsrc.getUser().getAccountId())) {
             throw new ResourceConflictException("GPG key already associated with another account");
           }
         } else {
@@ -257,7 +257,7 @@
             } catch (EmailException e) {
               logger.atSevere().withCause(e).log(
                   "Cannot send GPG key added message to %s",
-                  rsrc.getUser().getAccount().getPreferredEmail());
+                  rsrc.getUser().getAccount().preferredEmail());
             }
           }
           if (!toRemove.isEmpty()) {
@@ -267,8 +267,7 @@
                   .send();
             } catch (EmailException e) {
               logger.atSevere().withCause(e).log(
-                  "Cannot send GPG key deleted message to %s",
-                  user.getAccount().getPreferredEmail());
+                  "Cannot send GPG key deleted message to %s", user.getAccount().preferredEmail());
             }
           }
           break;
@@ -304,7 +303,7 @@
       String msg = "GPG key " + extIdKey.get() + " associated with multiple accounts: [";
       msg =
           accountStates.stream()
-              .map(a -> a.getAccount().getId().toString())
+              .map(a -> a.getAccount().id().toString())
               .collect(joining(", ", msg, "]"));
       throw new IllegalStateException(msg);
     }
diff --git a/java/com/google/gerrit/httpd/ContainerAuthFilter.java b/java/com/google/gerrit/httpd/ContainerAuthFilter.java
index d13f2f6..03ed90d 100644
--- a/java/com/google/gerrit/httpd/ContainerAuthFilter.java
+++ b/java/com/google/gerrit/httpd/ContainerAuthFilter.java
@@ -118,7 +118,7 @@
       return false;
     }
     WebSession ws = session.get();
-    ws.setUserAccountId(who.get().getAccount().getId());
+    ws.setUserAccountId(who.get().getAccount().id());
     ws.setAccessPathOk(AccessPath.GIT, true);
     ws.setAccessPathOk(AccessPath.REST_API, true);
     return true;
diff --git a/java/com/google/gerrit/httpd/ProjectBasicAuthFilter.java b/java/com/google/gerrit/httpd/ProjectBasicAuthFilter.java
index 818827c..e3ab70d 100644
--- a/java/com/google/gerrit/httpd/ProjectBasicAuthFilter.java
+++ b/java/com/google/gerrit/httpd/ProjectBasicAuthFilter.java
@@ -177,7 +177,7 @@
   }
 
   private boolean succeedAuthentication(AccountState who) {
-    setUserIdentified(who.getAccount().getId());
+    setUserIdentified(who.getAccount().id());
     return true;
   }
 
diff --git a/java/com/google/gerrit/httpd/ProjectOAuthFilter.java b/java/com/google/gerrit/httpd/ProjectOAuthFilter.java
index 30ebe6e..3bb728f 100644
--- a/java/com/google/gerrit/httpd/ProjectOAuthFilter.java
+++ b/java/com/google/gerrit/httpd/ProjectOAuthFilter.java
@@ -163,8 +163,8 @@
 
     Account account = who.get().getAccount();
     AuthRequest authRequest = AuthRequest.forExternalUser(authInfo.username);
-    authRequest.setEmailAddress(account.getPreferredEmail());
-    authRequest.setDisplayName(account.getFullName());
+    authRequest.setEmailAddress(account.preferredEmail());
+    authRequest.setDisplayName(account.fullName());
     authRequest.setPassword(authInfo.tokenOrSecret);
     authRequest.setAuthPlugin(authInfo.pluginName);
     authRequest.setAuthProvider(authInfo.exportName);
diff --git a/java/com/google/gerrit/httpd/RunAsFilter.java b/java/com/google/gerrit/httpd/RunAsFilter.java
index 15dbcab..0055fc7 100644
--- a/java/com/google/gerrit/httpd/RunAsFilter.java
+++ b/java/com/google/gerrit/httpd/RunAsFilter.java
@@ -105,7 +105,7 @@
 
       Account.Id target;
       try {
-        target = accountResolver.resolve(runas).asUnique().getAccount().getId();
+        target = accountResolver.resolve(runas).asUnique().getAccount().id();
       } catch (UnprocessableEntityException e) {
         replyError(req, res, SC_FORBIDDEN, "no account matches " + RUN_AS, null);
         return;
diff --git a/java/com/google/gerrit/httpd/auth/become/BecomeAnyAccountLoginServlet.java b/java/com/google/gerrit/httpd/auth/become/BecomeAnyAccountLoginServlet.java
index 552e667..3eb4bcc 100644
--- a/java/com/google/gerrit/httpd/auth/become/BecomeAnyAccountLoginServlet.java
+++ b/java/com/google/gerrit/httpd/auth/become/BecomeAnyAccountLoginServlet.java
@@ -157,16 +157,16 @@
       String displayName;
       if (accountState.get().getUserName().isPresent()) {
         displayName = accountState.get().getUserName().get();
-      } else if (account.getFullName() != null && !account.getFullName().isEmpty()) {
-        displayName = account.getFullName();
-      } else if (account.getPreferredEmail() != null) {
-        displayName = account.getPreferredEmail();
+      } else if (account.fullName() != null && !account.fullName().isEmpty()) {
+        displayName = account.fullName();
+      } else if (account.preferredEmail() != null) {
+        displayName = account.preferredEmail();
       } else {
         displayName = accountId.toString();
       }
 
       Element linkElement = doc.createElement("a");
-      linkElement.setAttribute("href", "?account_id=" + account.getId().toString());
+      linkElement.setAttribute("href", "?account_id=" + account.id().toString());
       linkElement.setTextContent(displayName);
       userlistElement.appendChild(linkElement);
       userlistElement.appendChild(doc.createElement("br"));
@@ -176,7 +176,7 @@
   }
 
   private Optional<AuthResult> auth(Optional<AccountState> account) {
-    return account.map(a -> new AuthResult(a.getAccount().getId(), null, false));
+    return account.map(a -> new AuthResult(a.getAccount().id(), null, false));
   }
 
   private AuthResult auth(Account.Id account) {
@@ -196,7 +196,7 @@
       getServletContext().log("Multiple accounts with username " + userName + " found");
       return null;
     }
-    return auth(accountStates.get(0).getAccount().getId());
+    return auth(accountStates.get(0).getAccount().id());
   }
 
   private Optional<AuthResult> byPreferredEmail(String email) {
diff --git a/java/com/google/gerrit/lucene/LuceneAccountIndex.java b/java/com/google/gerrit/lucene/LuceneAccountIndex.java
index 41d16aa2..8e67fda 100644
--- a/java/com/google/gerrit/lucene/LuceneAccountIndex.java
+++ b/java/com/google/gerrit/lucene/LuceneAccountIndex.java
@@ -62,7 +62,7 @@
   private static final String ID_SORT_FIELD = sortFieldName(ID);
 
   private static Term idTerm(AccountState as) {
-    return idTerm(as.getAccount().getId());
+    return idTerm(as.getAccount().id());
   }
 
   private static Term idTerm(Account.Id id) {
diff --git a/java/com/google/gerrit/pgm/init/AccountsOnInit.java b/java/com/google/gerrit/pgm/init/AccountsOnInit.java
index ff94905..595e4fd 100644
--- a/java/com/google/gerrit/pgm/init/AccountsOnInit.java
+++ b/java/com/google/gerrit/pgm/init/AccountsOnInit.java
@@ -15,6 +15,7 @@
 package com.google.gerrit.pgm.init;
 
 import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkState;
 import static java.nio.charset.StandardCharsets.UTF_8;
 
 import com.google.gerrit.pgm.init.api.AllUsersNameOnInitProvider;
@@ -60,63 +61,59 @@
     this.allUsers = allUsers.get();
   }
 
-  public void insert(Account account) throws IOException {
+  public Account insert(Account.Builder account) throws IOException {
     File path = getPath();
-    if (path != null) {
-      try (Repository repo = new FileRepository(path);
-          ObjectInserter oi = repo.newObjectInserter()) {
-        PersonIdent ident =
-            new PersonIdent(
-                new GerritPersonIdentProvider(flags.cfg).get(), account.getRegisteredOn());
+    try (Repository repo = new FileRepository(path);
+        ObjectInserter oi = repo.newObjectInserter()) {
+      PersonIdent ident =
+          new PersonIdent(new GerritPersonIdentProvider(flags.cfg).get(), account.registeredOn());
 
-        Config accountConfig = new Config();
-        AccountProperties.writeToAccountConfig(
-            InternalAccountUpdate.builder()
-                .setActive(account.isActive())
-                .setFullName(account.getFullName())
-                .setPreferredEmail(account.getPreferredEmail())
-                .setStatus(account.getStatus())
-                .build(),
-            accountConfig);
+      Config accountConfig = new Config();
+      AccountProperties.writeToAccountConfig(
+          InternalAccountUpdate.builder()
+              .setActive(!account.inactive())
+              .setFullName(account.fullName())
+              .setPreferredEmail(account.preferredEmail())
+              .setStatus(account.status())
+              .build(),
+          accountConfig);
 
-        DirCache newTree = DirCache.newInCore();
-        DirCacheEditor editor = newTree.editor();
-        final ObjectId blobId =
-            oi.insert(Constants.OBJ_BLOB, accountConfig.toText().getBytes(UTF_8));
-        editor.add(
-            new PathEdit(AccountProperties.ACCOUNT_CONFIG) {
-              @Override
-              public void apply(DirCacheEntry ent) {
-                ent.setFileMode(FileMode.REGULAR_FILE);
-                ent.setObjectId(blobId);
-              }
-            });
-        editor.finish();
+      DirCache newTree = DirCache.newInCore();
+      DirCacheEditor editor = newTree.editor();
+      final ObjectId blobId = oi.insert(Constants.OBJ_BLOB, accountConfig.toText().getBytes(UTF_8));
+      editor.add(
+          new PathEdit(AccountProperties.ACCOUNT_CONFIG) {
+            @Override
+            public void apply(DirCacheEntry ent) {
+              ent.setFileMode(FileMode.REGULAR_FILE);
+              ent.setObjectId(blobId);
+            }
+          });
+      editor.finish();
 
-        ObjectId treeId = newTree.writeTree(oi);
+      ObjectId treeId = newTree.writeTree(oi);
 
-        CommitBuilder cb = new CommitBuilder();
-        cb.setTreeId(treeId);
-        cb.setCommitter(ident);
-        cb.setAuthor(ident);
-        cb.setMessage("Create Account");
-        ObjectId id = oi.insert(cb);
-        oi.flush();
+      CommitBuilder cb = new CommitBuilder();
+      cb.setTreeId(treeId);
+      cb.setCommitter(ident);
+      cb.setAuthor(ident);
+      cb.setMessage("Create Account");
+      ObjectId id = oi.insert(cb);
+      oi.flush();
 
-        String refName = RefNames.refsUsers(account.getId());
-        RefUpdate ru = repo.updateRef(refName);
-        ru.setExpectedOldObjectId(ObjectId.zeroId());
-        ru.setNewObjectId(id);
-        ru.setRefLogIdent(ident);
-        ru.setRefLogMessage("Create Account", false);
-        Result result = ru.update();
-        if (result != Result.NEW) {
-          throw new IOException(
-              String.format("Failed to update ref %s: %s", refName, result.name()));
-        }
-        account.setMetaId(id.name());
+      String refName = RefNames.refsUsers(account.id());
+      RefUpdate ru = repo.updateRef(refName);
+      ru.setExpectedOldObjectId(ObjectId.zeroId());
+      ru.setNewObjectId(id);
+      ru.setRefLogIdent(ident);
+      ru.setRefLogMessage("Create Account", false);
+      Result result = ru.update();
+      if (result != Result.NEW) {
+        throw new IOException(String.format("Failed to update ref %s: %s", refName, result.name()));
       }
+      account.setMetaId(id.name()).build();
     }
+    return account.build();
   }
 
   public boolean hasAnyAccount() throws IOException {
@@ -133,6 +130,8 @@
   private File getPath() {
     Path basePath = site.resolve(flags.cfg.getString("gerrit", null, "basePath"));
     checkArgument(basePath != null, "gerrit.basePath must be configured");
-    return FileKey.resolve(basePath.resolve(allUsers).toFile(), FS.DETECTED);
+    File file = FileKey.resolve(basePath.resolve(allUsers).toFile(), FS.DETECTED);
+    checkState(file != null, "%s does not exist", file.getAbsolutePath());
+    return file;
   }
 }
diff --git a/java/com/google/gerrit/pgm/init/GroupsOnInit.java b/java/com/google/gerrit/pgm/init/GroupsOnInit.java
index 273ebfb..eaeeb67 100644
--- a/java/com/google/gerrit/pgm/init/GroupsOnInit.java
+++ b/java/com/google/gerrit/pgm/init/GroupsOnInit.java
@@ -155,7 +155,7 @@
 
   private static InternalGroupUpdate getMemberAdditionUpdate(Account account) {
     return InternalGroupUpdate.builder()
-        .setMemberModification(members -> Sets.union(members, ImmutableSet.of(account.getId())))
+        .setMemberModification(members -> Sets.union(members, ImmutableSet.of(account.id())))
         .build();
   }
 
diff --git a/java/com/google/gerrit/pgm/init/InitAdminUser.java b/java/com/google/gerrit/pgm/init/InitAdminUser.java
index 45c5ea6..0af83c5 100644
--- a/java/com/google/gerrit/pgm/init/InitAdminUser.java
+++ b/java/com/google/gerrit/pgm/init/InitAdminUser.java
@@ -111,11 +111,9 @@
         }
         externalIds.insert("Add external IDs for initial admin user", extIds);
 
-        Account a = new Account(id, TimeUtil.nowTs());
-        a.setFullName(name);
-        a.setPreferredEmail(email);
-        accounts.insert(a);
-
+        Account persistedAccount =
+            accounts.insert(
+                Account.builder(id, TimeUtil.nowTs()).setFullName(name).setPreferredEmail(email));
         // Only two groups should exist at this point in time and hence iterating over all of them
         // is cheap.
         Optional<GroupReference> adminGroupReference =
@@ -127,7 +125,7 @@
           throw new NoSuchGroupException("Administrators");
         }
         GroupReference adminGroup = adminGroupReference.get();
-        groupsOnInit.addGroupMember(adminGroup.getUUID(), a);
+        groupsOnInit.addGroupMember(adminGroup.getUUID(), persistedAccount);
 
         if (sshKey != null) {
           VersionedAuthorizedKeysOnInit authorizedKeys = authorizedKeysFactory.create(id).load();
@@ -135,7 +133,7 @@
           authorizedKeys.save("Add SSH key for initial admin user\n");
         }
 
-        AccountState as = AccountState.forAccount(a, extIds);
+        AccountState as = AccountState.forAccount(persistedAccount, extIds);
         for (AccountIndex accountIndex : accountIndexCollection.getWriteIndexes()) {
           accountIndex.replace(as);
         }
diff --git a/java/com/google/gerrit/reviewdb/client/Account.java b/java/com/google/gerrit/reviewdb/client/Account.java
index cb7e957..a26f3be 100644
--- a/java/com/google/gerrit/reviewdb/client/Account.java
+++ b/java/com/google/gerrit/reviewdb/client/Account.java
@@ -20,6 +20,7 @@
 
 import com.google.auto.value.AutoValue;
 import com.google.common.primitives.Ints;
+import com.google.gerrit.common.Nullable;
 import com.google.gerrit.extensions.client.DiffPreferencesInfo;
 import java.sql.Timestamp;
 import java.util.Optional;
@@ -43,7 +44,8 @@
  *   <li>{@link DiffPreferencesInfo}: user's preferences for rendering side-to-side and unified diff
  * </ul>
  */
-public final class Account {
+@AutoValue
+public abstract class Account {
   public static Id id(int id) {
     return new AutoValue_Account_Id(id);
   }
@@ -118,30 +120,32 @@
     }
   }
 
-  private Id accountId;
+  public abstract Id id();
 
   /** Date and time the user registered with the review server. */
-  private Timestamp registeredOn;
+  public abstract Timestamp registeredOn();
 
   /** Full name of the user ("Given-name Surname" style). */
-  private String fullName;
+  @Nullable
+  public abstract String fullName();
 
   /** Email address the user prefers to be contacted through. */
-  private String preferredEmail;
+  @Nullable
+  public abstract String preferredEmail();
 
   /**
    * Is this user inactive? This is used to avoid showing some users (eg. former employees) in
    * auto-suggest.
    */
-  private boolean inactive;
+  public abstract boolean inactive();
 
   /** The user-settable status of this account (e.g. busy, OOO, available) */
-  private String status;
+  @Nullable
+  public abstract String status();
 
   /** ID of the user branch from which the account was read. */
-  private String metaId;
-
-  protected Account() {}
+  @Nullable
+  public abstract String metaId();
 
   /**
    * Create a new account.
@@ -149,38 +153,11 @@
    * @param newId unique id, see {@link com.google.gerrit.server.notedb.Sequences#nextAccountId()}.
    * @param registeredOn when the account was registered.
    */
-  public Account(Account.Id newId, Timestamp registeredOn) {
-    this.accountId = newId;
-    this.registeredOn = registeredOn;
-  }
-
-  /** Get local id of this account, to link with in other entities */
-  public Account.Id getId() {
-    return accountId;
-  }
-
-  /** Get the full name of the user ("Given-name Surname" style). */
-  public String getFullName() {
-    return fullName;
-  }
-
-  /** Set the full name of the user ("Given-name Surname" style). */
-  public void setFullName(String name) {
-    if (name != null && !name.trim().isEmpty()) {
-      fullName = name.trim();
-    } else {
-      fullName = null;
-    }
-  }
-
-  /** Email address the user prefers to be contacted through. */
-  public String getPreferredEmail() {
-    return preferredEmail;
-  }
-
-  /** Set the email address the user prefers to be contacted through. */
-  public void setPreferredEmail(String addr) {
-    preferredEmail = addr;
+  public static Account.Builder builder(Account.Id newId, Timestamp registeredOn) {
+    return new AutoValue_Account.Builder()
+        .setInactive(false)
+        .setId(newId)
+        .setRegisteredOn(registeredOn);
   }
 
   /**
@@ -196,13 +173,13 @@
    *     generic string containing the accountId.
    */
   public String getName() {
-    if (fullName != null) {
-      return fullName;
+    if (fullName() != null) {
+      return fullName();
     }
-    if (preferredEmail != null) {
-      return preferredEmail;
+    if (preferredEmail() != null) {
+      return preferredEmail();
     }
-    return getName(accountId);
+    return getName(id());
   }
 
   public static String getName(Account.Id accountId) {
@@ -222,57 +199,65 @@
    * </ul>
    */
   public String getNameEmail(String anonymousCowardName) {
-    String name = fullName != null ? fullName : anonymousCowardName;
+    String name = fullName() != null ? fullName() : anonymousCowardName;
     StringBuilder b = new StringBuilder();
     b.append(name);
-    if (preferredEmail != null) {
+    if (preferredEmail() != null) {
       b.append(" <");
-      b.append(preferredEmail);
+      b.append(preferredEmail());
       b.append(">");
     } else {
       b.append(" (");
-      b.append(accountId.get());
+      b.append(id().get());
       b.append(")");
     }
     return b.toString();
   }
 
-  /** Get the date and time the user first registered. */
-  public Timestamp getRegisteredOn() {
-    return registeredOn;
-  }
-
-  public String getMetaId() {
-    return metaId;
-  }
-
-  public void setMetaId(String metaId) {
-    this.metaId = metaId;
-  }
-
   public boolean isActive() {
-    return !inactive;
+    return !inactive();
   }
 
-  public void setActive(boolean active) {
-    inactive = !active;
-  }
+  public abstract Builder toBuilder();
 
-  public String getStatus() {
-    return status;
-  }
+  @AutoValue.Builder
+  public abstract static class Builder {
+    public abstract Id id();
 
-  public void setStatus(String status) {
-    this.status = status;
-  }
+    abstract Builder setId(Id id);
 
-  @Override
-  public boolean equals(Object o) {
-    return o instanceof Account && ((Account) o).getId().equals(getId());
-  }
+    public abstract Timestamp registeredOn();
 
-  @Override
-  public int hashCode() {
-    return getId().get();
+    abstract Builder setRegisteredOn(Timestamp registeredOn);
+
+    @Nullable
+    public abstract String fullName();
+
+    public abstract Builder setFullName(String fullName);
+
+    @Nullable
+    public abstract String preferredEmail();
+
+    public abstract Builder setPreferredEmail(String preferredEmail);
+
+    public abstract boolean inactive();
+
+    public abstract Builder setInactive(boolean inactive);
+
+    public Builder setActive(boolean active) {
+      return setInactive(!active);
+    }
+
+    @Nullable
+    public abstract String status();
+
+    public abstract Builder setStatus(String status);
+
+    @Nullable
+    public abstract String metaId();
+
+    public abstract Builder setMetaId(@Nullable String metaId);
+
+    public abstract Account build();
   }
 }
diff --git a/java/com/google/gerrit/server/IdentifiedUser.java b/java/com/google/gerrit/server/IdentifiedUser.java
index e65f562..7e18280 100644
--- a/java/com/google/gerrit/server/IdentifiedUser.java
+++ b/java/com/google/gerrit/server/IdentifiedUser.java
@@ -234,7 +234,7 @@
         groupBackend,
         enableReverseDnsLookup,
         remotePeerProvider,
-        state.getAccount().getId(),
+        state.getAccount().id(),
         realUser);
     this.state = state;
   }
@@ -330,8 +330,7 @@
   @Override
   public String getLoggableName() {
     return getUserName()
-        .orElseGet(
-            () -> firstNonNull(getAccount().getPreferredEmail(), "a/" + getAccountId().get()));
+        .orElseGet(() -> firstNonNull(getAccount().preferredEmail(), "a/" + getAccountId().get()));
   }
 
   /**
@@ -403,29 +402,29 @@
   public PersonIdent newRefLogIdent(Date when, TimeZone tz) {
     final Account ua = getAccount();
 
-    String name = ua.getFullName();
+    String name = ua.fullName();
     if (name == null || name.isEmpty()) {
-      name = ua.getPreferredEmail();
+      name = ua.preferredEmail();
     }
     if (name == null || name.isEmpty()) {
       name = anonymousCowardName;
     }
 
-    String user = getUserName().orElse("") + "|account-" + ua.getId().toString();
+    String user = getUserName().orElse("") + "|account-" + ua.id().toString();
     return new PersonIdent(name, user + "@" + guessHost(), when, tz);
   }
 
   public PersonIdent newCommitterIdent(Date when, TimeZone tz) {
     final Account ua = getAccount();
-    String name = ua.getFullName();
-    String email = ua.getPreferredEmail();
+    String name = ua.fullName();
+    String email = ua.preferredEmail();
 
     if (email == null || email.isEmpty()) {
       // No preferred email is configured. Use a generic identity so we
       // don't leak an address the user may have given us, but doesn't
       // necessarily want to publish through Git records.
       //
-      String user = getUserName().orElseGet(() -> "account-" + ua.getId().toString());
+      String user = getUserName().orElseGet(() -> "account-" + ua.id().toString());
 
       String host;
       if (canonicalUrl.get() != null) {
diff --git a/java/com/google/gerrit/server/account/AccountCacheImpl.java b/java/com/google/gerrit/server/account/AccountCacheImpl.java
index 3d81052..5a3c774 100644
--- a/java/com/google/gerrit/server/account/AccountCacheImpl.java
+++ b/java/com/google/gerrit/server/account/AccountCacheImpl.java
@@ -129,7 +129,7 @@
     }
     for (Future<Optional<AccountState>> f : futures) {
       try {
-        f.get().ifPresent(s -> accountStates.put(s.getAccount().getId(), s));
+        f.get().ifPresent(s -> accountStates.put(s.getAccount().id(), s));
       } catch (InterruptedException | ExecutionException e) {
         logger.atSevere().withCause(e).log("Cannot load AccountState");
       }
@@ -165,9 +165,9 @@
   }
 
   private AccountState missing(Account.Id accountId) {
-    Account account = new Account(accountId, TimeUtil.nowTs());
+    Account.Builder account = Account.builder(accountId, TimeUtil.nowTs());
     account.setActive(false);
-    return AccountState.forAccount(account);
+    return AccountState.forAccount(account.build());
   }
 
   static class ByIdLoader extends CacheLoader<Account.Id, Optional<AccountState>> {
diff --git a/java/com/google/gerrit/server/account/AccountConfig.java b/java/com/google/gerrit/server/account/AccountConfig.java
index 06f7a08..5263bad 100644
--- a/java/com/google/gerrit/server/account/AccountConfig.java
+++ b/java/com/google/gerrit/server/account/AccountConfig.java
@@ -184,14 +184,14 @@
     checkLoaded();
     this.loadedAccountProperties =
         Optional.of(
-            new AccountProperties(account.getId(), account.getRegisteredOn(), new Config(), null));
+            new AccountProperties(account.id(), account.registeredOn(), new Config(), null));
     this.accountUpdate =
         Optional.of(
             InternalAccountUpdate.builder()
                 .setActive(account.isActive())
-                .setFullName(account.getFullName())
-                .setPreferredEmail(account.getPreferredEmail())
-                .setStatus(account.getStatus())
+                .setFullName(account.fullName())
+                .setPreferredEmail(account.preferredEmail())
+                .setStatus(account.status())
                 .build());
     return this;
   }
diff --git a/java/com/google/gerrit/server/account/AccountControl.java b/java/com/google/gerrit/server/account/AccountControl.java
index 4b8be81..fc0bfd0 100644
--- a/java/com/google/gerrit/server/account/AccountControl.java
+++ b/java/com/google/gerrit/server/account/AccountControl.java
@@ -133,7 +133,7 @@
         new OtherUser() {
           @Override
           Account.Id getId() {
-            return otherUser.getAccount().getId();
+            return otherUser.getAccount().id();
           }
 
           @Override
diff --git a/java/com/google/gerrit/server/account/AccountDeactivator.java b/java/com/google/gerrit/server/account/AccountDeactivator.java
index b0dc527..1bd17bc 100644
--- a/java/com/google/gerrit/server/account/AccountDeactivator.java
+++ b/java/com/google/gerrit/server/account/AccountDeactivator.java
@@ -108,7 +108,7 @@
     logger.atFine().log("processing account %s", userName);
     try {
       if (realm.accountBelongsToRealm(accountState.getExternalIds()) && !realm.isActive(userName)) {
-        sif.deactivate(accountState.getAccount().getId());
+        sif.deactivate(accountState.getAccount().id());
         logger.atInfo().log("deactivated account %s", userName);
         return true;
       }
@@ -117,7 +117,7 @@
     } catch (Exception e) {
       logger.atSevere().withCause(e).log(
           "Error deactivating account: %s (%s) %s",
-          userName, accountState.getAccount().getId(), e.getMessage());
+          userName, accountState.getAccount().id(), e.getMessage());
     }
     return false;
   }
diff --git a/java/com/google/gerrit/server/account/AccountManager.java b/java/com/google/gerrit/server/account/AccountManager.java
index 7e49c10..7fb9997 100644
--- a/java/com/google/gerrit/server/account/AccountManager.java
+++ b/java/com/google/gerrit/server/account/AccountManager.java
@@ -195,18 +195,18 @@
 
     if (authRequest.isActive()) {
       try {
-        setInactiveFlag.activate(account.getId());
+        setInactiveFlag.activate(account.id());
       } catch (Exception e) {
-        throw new AccountException("Unable to activate account " + account.getId(), e);
+        throw new AccountException("Unable to activate account " + account.id(), e);
       }
     } else {
       try {
-        setInactiveFlag.deactivate(account.getId());
+        setInactiveFlag.deactivate(account.id());
       } catch (Exception e) {
-        throw new AccountException("Unable to deactivate account " + account.getId(), e);
+        throw new AccountException("Unable to deactivate account " + account.id(), e);
       }
     }
-    return byIdCache.get(account.getId()).map(AccountState::getAccount);
+    return byIdCache.get(account.id()).map(AccountState::getAccount);
   }
 
   private boolean shouldUpdateActiveStatus(AuthRequest authRequest) {
@@ -229,20 +229,20 @@
       checkEmailNotUsed(extIdWithNewEmail);
       accountUpdates.add(u -> u.replaceExternalId(extId, extIdWithNewEmail));
 
-      if (oldEmail != null && oldEmail.equals(user.getAccount().getPreferredEmail())) {
+      if (oldEmail != null && oldEmail.equals(user.getAccount().preferredEmail())) {
         accountUpdates.add(u -> u.setPreferredEmail(newEmail));
       }
     }
 
     if (!Strings.isNullOrEmpty(who.getDisplayName())
-        && !Objects.equals(user.getAccount().getFullName(), who.getDisplayName())) {
+        && !Objects.equals(user.getAccount().fullName(), who.getDisplayName())) {
       accountUpdates.add(u -> u.setFullName(who.getDisplayName()));
       if (realm.allowsEdit(AccountFieldName.FULL_NAME)) {
         accountUpdates.add(a -> a.setFullName(who.getDisplayName()));
       } else {
         logger.atWarning().log(
             "Not changing already set display name '%s' to '%s'",
-            user.getAccount().getFullName(), who.getDisplayName());
+            user.getAccount().fullName(), who.getDisplayName());
       }
     }
 
@@ -420,7 +420,7 @@
               to,
               (a, u) -> {
                 u.addExternalId(newExtId);
-                if (who.getEmailAddress() != null && a.getAccount().getPreferredEmail() == null) {
+                if (who.getEmailAddress() != null && a.getAccount().preferredEmail() == null) {
                   u.setPreferredEmail(who.getEmailAddress());
                 }
               });
@@ -511,9 +511,9 @@
             from,
             (a, u) -> {
               u.deleteExternalIds(extIds);
-              if (a.getAccount().getPreferredEmail() != null
+              if (a.getAccount().preferredEmail() != null
                   && extIds.stream()
-                      .anyMatch(e -> a.getAccount().getPreferredEmail().equals(e.email()))) {
+                      .anyMatch(e -> a.getAccount().preferredEmail().equals(e.email()))) {
                 u.setPreferredEmail(null);
               }
             });
diff --git a/java/com/google/gerrit/server/account/AccountProperties.java b/java/com/google/gerrit/server/account/AccountProperties.java
index 6fcf56d..17b2bad 100644
--- a/java/com/google/gerrit/server/account/AccountProperties.java
+++ b/java/com/google/gerrit/server/account/AccountProperties.java
@@ -88,15 +88,16 @@
   }
 
   private void parse() {
-    account = new Account(accountId, registeredOn);
-    account.setActive(accountConfig.getBoolean(ACCOUNT, null, KEY_ACTIVE, true));
-    account.setFullName(get(accountConfig, KEY_FULL_NAME));
+    Account.Builder accountBuilder = Account.builder(accountId, registeredOn);
+    accountBuilder.setActive(accountConfig.getBoolean(ACCOUNT, null, KEY_ACTIVE, true));
+    accountBuilder.setFullName(get(accountConfig, KEY_FULL_NAME));
 
     String preferredEmail = get(accountConfig, KEY_PREFERRED_EMAIL);
-    account.setPreferredEmail(preferredEmail);
+    accountBuilder.setPreferredEmail(preferredEmail);
 
-    account.setStatus(get(accountConfig, KEY_STATUS));
-    account.setMetaId(metaId != null ? metaId.name() : null);
+    accountBuilder.setStatus(get(accountConfig, KEY_STATUS));
+    accountBuilder.setMetaId(metaId != null ? metaId.name() : null);
+    account = accountBuilder.build();
   }
 
   Config save(InternalAccountUpdate accountUpdate) {
diff --git a/java/com/google/gerrit/server/account/AccountResolver.java b/java/com/google/gerrit/server/account/AccountResolver.java
index 2ac7147..244bb9e 100644
--- a/java/com/google/gerrit/server/account/AccountResolver.java
+++ b/java/com/google/gerrit/server/account/AccountResolver.java
@@ -113,7 +113,7 @@
   }
 
   private static String formatForException(Result result, AccountState state) {
-    return state.getAccount().getId()
+    return state.getAccount().id()
         + ": "
         + state.getAccount().getNameEmail(result.accountResolver().anonymousCowardName);
   }
@@ -135,7 +135,7 @@
     }
 
     private ImmutableList<AccountState> canonicalize(List<AccountState> list) {
-      TreeSet<AccountState> set = new TreeSet<>(comparing(a -> a.getAccount().getId().get()));
+      TreeSet<AccountState> set = new TreeSet<>(comparing(a -> a.getAccount().id().get()));
       set.addAll(requireNonNull(list));
       return ImmutableList.copyOf(set);
     }
@@ -160,7 +160,7 @@
     }
 
     public ImmutableSet<Account.Id> asIdSet() {
-      return list.stream().map(a -> a.getAccount().getId()).collect(toImmutableSet());
+      return list.stream().map(a -> a.getAccount().id()).collect(toImmutableSet());
     }
 
     public AccountState asUnique() throws UnresolvableAccountException {
@@ -192,7 +192,7 @@
         return self.get().asIdentifiedUser();
       }
       return userFactory.runAs(
-          null, list.get(0).getAccount().getId(), requireNonNull(caller).getRealUser());
+          null, list.get(0).getAccount().id(), requireNonNull(caller).getRealUser());
     }
 
     @VisibleForTesting
@@ -349,7 +349,7 @@
       String name = nameOrEmail.substring(0, lt - 1);
       ImmutableList<AccountState> nameMatches =
           allMatches.stream()
-              .filter(a -> name.equals(a.getAccount().getFullName()))
+              .filter(a -> name.equals(a.getAccount().fullName()))
               .collect(toImmutableList());
       return !nameMatches.isEmpty() ? nameMatches.stream() : allMatches.stream();
     }
diff --git a/java/com/google/gerrit/server/account/AccountState.java b/java/com/google/gerrit/server/account/AccountState.java
index 556185e..4a04f01 100644
--- a/java/com/google/gerrit/server/account/AccountState.java
+++ b/java/com/google/gerrit/server/account/AccountState.java
@@ -95,7 +95,7 @@
             : accountConfig.getExternalIdsRev();
     ImmutableSet<ExternalId> extIds =
         extIdsRev.isPresent()
-            ? ImmutableSet.copyOf(externalIds.byAccount(account.getId(), extIdsRev.get()))
+            ? ImmutableSet.copyOf(externalIds.byAccount(account.id(), extIdsRev.get()))
             : ImmutableSet.of();
 
     // Don't leak references to AccountConfig into the AccountState, since it holds a reference to
@@ -292,7 +292,7 @@
   @Override
   public String toString() {
     MoreObjects.ToStringHelper h = MoreObjects.toStringHelper(this);
-    h.addValue(getAccount().getId());
+    h.addValue(getAccount().id());
     return h.toString();
   }
 }
diff --git a/java/com/google/gerrit/server/account/AccountsConsistencyChecker.java b/java/com/google/gerrit/server/account/AccountsConsistencyChecker.java
index 6873f92..6ec3a05 100644
--- a/java/com/google/gerrit/server/account/AccountsConsistencyChecker.java
+++ b/java/com/google/gerrit/server/account/AccountsConsistencyChecker.java
@@ -36,13 +36,13 @@
 
     for (AccountState accountState : accounts.all()) {
       Account account = accountState.getAccount();
-      if (account.getPreferredEmail() != null) {
+      if (account.preferredEmail() != null) {
         if (!accountState.getExternalIds().stream()
-            .anyMatch(e -> account.getPreferredEmail().equals(e.email()))) {
+            .anyMatch(e -> account.preferredEmail().equals(e.email()))) {
           addError(
               String.format(
                   "Account '%s' has no external ID for its preferred email '%s'",
-                  account.getId().get(), account.getPreferredEmail()),
+                  account.id().get(), account.preferredEmail()),
               problems);
         }
       }
diff --git a/java/com/google/gerrit/server/account/Emails.java b/java/com/google/gerrit/server/account/Emails.java
index 426d6ea..14f279b 100644
--- a/java/com/google/gerrit/server/account/Emails.java
+++ b/java/com/google/gerrit/server/account/Emails.java
@@ -73,7 +73,7 @@
     return Streams.concat(
             externalIds.byEmail(email).stream().map(ExternalId::accountId),
             executeIndexQuery(() -> queryProvider.get().byPreferredEmail(email).stream())
-                .map(a -> a.getAccount().getId()))
+                .map(a -> a.getAccount().id()))
         .collect(toImmutableSet());
   }
 
@@ -88,7 +88,7 @@
     externalIds.byEmails(emails).entries().stream()
         .forEach(e -> builder.put(e.getKey(), e.getValue().accountId()));
     executeIndexQuery(() -> queryProvider.get().byPreferredEmail(emails).entries().stream())
-        .forEach(e -> builder.put(e.getKey(), e.getValue().getAccount().getId()));
+        .forEach(e -> builder.put(e.getKey(), e.getValue().getAccount().id()));
     return builder.build();
   }
 
diff --git a/java/com/google/gerrit/server/account/InternalAccountDirectory.java b/java/com/google/gerrit/server/account/InternalAccountDirectory.java
index 99ad570..8062eaf 100644
--- a/java/com/google/gerrit/server/account/InternalAccountDirectory.java
+++ b/java/com/google/gerrit/server/account/InternalAccountDirectory.java
@@ -105,7 +105,7 @@
       AccountState state = accountStates.get(id);
       if (state != null) {
         if (!options.contains(FillOptions.SECONDARY_EMAILS)
-            || Objects.equals(currentUserId, state.getAccount().getId())
+            || Objects.equals(currentUserId, state.getAccount().id())
             || canModifyAccount) {
           fill(info, accountStates.get(id), options);
         } else {
@@ -122,19 +122,19 @@
   private void fill(AccountInfo info, AccountState accountState, Set<FillOptions> options) {
     Account account = accountState.getAccount();
     if (options.contains(FillOptions.ID)) {
-      info._accountId = account.getId().get();
+      info._accountId = account.id().get();
     } else {
       // Was previously set to look up account for filling.
       info._accountId = null;
     }
     if (options.contains(FillOptions.NAME)) {
-      info.name = Strings.emptyToNull(account.getFullName());
+      info.name = Strings.emptyToNull(account.fullName());
       if (info.name == null) {
         info.name = accountState.getUserName().orElse(null);
       }
     }
     if (options.contains(FillOptions.EMAIL)) {
-      info.email = account.getPreferredEmail();
+      info.email = account.preferredEmail();
     }
     if (options.contains(FillOptions.SECONDARY_EMAILS)) {
       info.secondaryEmails = getSecondaryEmails(account, accountState.getExternalIds());
@@ -144,14 +144,14 @@
     }
 
     if (options.contains(FillOptions.STATUS)) {
-      info.status = account.getStatus();
+      info.status = account.status();
     }
 
     if (options.contains(FillOptions.AVATARS)) {
       AvatarProvider ap = avatar.get();
       if (ap != null) {
         info.avatars = new ArrayList<>();
-        IdentifiedUser user = userFactory.create(account.getId());
+        IdentifiedUser user = userFactory.create(account.id());
 
         // PolyGerrit UI uses the following sizes for avatars:
         // - 32px for avatars next to names e.g. on the dashboard. This is also Gerrit's default.
@@ -170,7 +170,7 @@
 
   public List<String> getSecondaryEmails(Account account, Collection<ExternalId> externalIds) {
     return ExternalId.getEmails(externalIds)
-        .filter(e -> !e.equals(account.getPreferredEmail()))
+        .filter(e -> !e.equals(account.preferredEmail()))
         .sorted()
         .collect(toList());
   }
diff --git a/java/com/google/gerrit/server/api/groups/GroupsImpl.java b/java/com/google/gerrit/server/api/groups/GroupsImpl.java
index bae75db..8c67633 100644
--- a/java/com/google/gerrit/server/api/groups/GroupsImpl.java
+++ b/java/com/google/gerrit/server/api/groups/GroupsImpl.java
@@ -141,7 +141,7 @@
 
     if (req.getUser() != null) {
       try {
-        list.setUser(accountResolver.resolve(req.getUser()).asUnique().getAccount().getId());
+        list.setUser(accountResolver.resolve(req.getUser()).asUnique().getAccount().id());
       } catch (Exception e) {
         throw asRestApiException("Error looking up user " + req.getUser(), e);
       }
diff --git a/java/com/google/gerrit/server/args4j/AccountIdHandler.java b/java/com/google/gerrit/server/args4j/AccountIdHandler.java
index efc1866..36ae88a 100644
--- a/java/com/google/gerrit/server/args4j/AccountIdHandler.java
+++ b/java/com/google/gerrit/server/args4j/AccountIdHandler.java
@@ -62,7 +62,7 @@
     Account.Id accountId;
     try {
       try {
-        accountId = accountResolver.resolve(token).asUnique().getAccount().getId();
+        accountId = accountResolver.resolve(token).asUnique().getAccount().id();
       } catch (UnprocessableEntityException e) {
         switch (authType) {
           case HTTP_LDAP:
diff --git a/java/com/google/gerrit/server/auth/ldap/LdapRealm.java b/java/com/google/gerrit/server/auth/ldap/LdapRealm.java
index 3b84fb8..22f4002 100644
--- a/java/com/google/gerrit/server/auth/ldap/LdapRealm.java
+++ b/java/com/google/gerrit/server/auth/ldap/LdapRealm.java
@@ -302,7 +302,7 @@
 
   @Override
   public void onCreateAccount(AuthRequest who, Account account) {
-    usernameCache.put(who.getLocalUser(), Optional.of(account.getId()));
+    usernameCache.put(who.getLocalUser(), Optional.of(account.id()));
   }
 
   @Override
diff --git a/java/com/google/gerrit/server/change/AbandonOp.java b/java/com/google/gerrit/server/change/AbandonOp.java
index 5ee5bc7..31332ec 100644
--- a/java/com/google/gerrit/server/change/AbandonOp.java
+++ b/java/com/google/gerrit/server/change/AbandonOp.java
@@ -112,7 +112,7 @@
     try {
       ReplyToChangeSender cm = abandonedSenderFactory.create(ctx.getProject(), change.getId());
       if (accountState != null) {
-        cm.setFrom(accountState.getAccount().getId());
+        cm.setFrom(accountState.getAccount().id());
       }
       cm.setChangeMessage(message.getMessage(), ctx.getWhen());
       cm.setNotify(notify);
diff --git a/java/com/google/gerrit/server/change/ChangeResource.java b/java/com/google/gerrit/server/change/ChangeResource.java
index 19a4e5c..c86e0bb 100644
--- a/java/com/google/gerrit/server/change/ChangeResource.java
+++ b/java/com/google/gerrit/server/change/ChangeResource.java
@@ -211,9 +211,9 @@
   }
 
   private void hashAccount(Hasher h, AccountState accountState, byte[] buf) {
-    h.putInt(accountState.getAccount().getId().get());
+    h.putInt(accountState.getAccount().id().get());
     h.putString(
-        MoreObjects.firstNonNull(accountState.getAccount().getMetaId(), ZERO_ID_STRING), UTF_8);
+        MoreObjects.firstNonNull(accountState.getAccount().metaId(), ZERO_ID_STRING), UTF_8);
     accountState.getExternalIds().stream().forEach(e -> hashObjectId(h, e.blobId(), buf));
   }
 }
diff --git a/java/com/google/gerrit/server/change/DeleteReviewerOp.java b/java/com/google/gerrit/server/change/DeleteReviewerOp.java
index de5c4bd..4cb06ba 100644
--- a/java/com/google/gerrit/server/change/DeleteReviewerOp.java
+++ b/java/com/google/gerrit/server/change/DeleteReviewerOp.java
@@ -108,7 +108,7 @@
   @Override
   public boolean updateChange(ChangeContext ctx)
       throws AuthException, ResourceNotFoundException, PermissionBackendException, IOException {
-    Account.Id reviewerId = reviewer.getAccount().getId();
+    Account.Id reviewerId = reviewer.getAccount().id();
     // Check of removing this reviewer (even if there is no vote processed by the loop below) is OK
     removeReviewerControl.checkRemoveReviewer(ctx.getNotes(), ctx.getUser(), reviewerId);
 
@@ -125,7 +125,7 @@
     }
 
     StringBuilder msg = new StringBuilder();
-    msg.append("Removed reviewer " + reviewer.getAccount().getFullName());
+    msg.append("Removed reviewer " + reviewer.getAccount().fullName());
     StringBuilder removedVotesMsg = new StringBuilder();
     removedVotesMsg.append(" with the following votes:\n\n");
     List<PatchSetApproval> del = new ArrayList<>();
@@ -212,13 +212,13 @@
       NotifyResolver.Result notify)
       throws EmailException {
     Account.Id userId = user.get().getAccountId();
-    if (userId.equals(reviewer.getAccount().getId())) {
+    if (userId.equals(reviewer.getAccount().id())) {
       // The user knows they removed themselves, don't bother emailing them.
       return;
     }
     DeleteReviewerSender cm = deleteReviewerSenderFactory.create(projectName, change.getId());
     cm.setFrom(userId);
-    cm.addReviewers(Collections.singleton(reviewer.getAccount().getId()));
+    cm.addReviewers(Collections.singleton(reviewer.getAccount().id()));
     cm.setChangeMessage(changeMessage.getMessage(), changeMessage.getWrittenOn());
     cm.setNotify(notify);
     cm.send();
diff --git a/java/com/google/gerrit/server/change/NotifyResolver.java b/java/com/google/gerrit/server/change/NotifyResolver.java
index 724ef48..7879580 100644
--- a/java/com/google/gerrit/server/change/NotifyResolver.java
+++ b/java/com/google/gerrit/server/change/NotifyResolver.java
@@ -100,7 +100,7 @@
     List<String> problems = new ArrayList<>(inputs.size());
     for (String nameOrEmail : inputs) {
       try {
-        r.add(accountResolver.resolve(nameOrEmail).asUnique().getAccount().getId());
+        r.add(accountResolver.resolve(nameOrEmail).asUnique().getAccount().id());
       } catch (UnprocessableEntityException e) {
         problems.add(e.getMessage());
       }
diff --git a/java/com/google/gerrit/server/change/ReviewerAdder.java b/java/com/google/gerrit/server/change/ReviewerAdder.java
index 95cd5f1..1c4f63c 100644
--- a/java/com/google/gerrit/server/change/ReviewerAdder.java
+++ b/java/com/google/gerrit/server/change/ReviewerAdder.java
@@ -340,7 +340,7 @@
 
     for (Account member : members) {
       if (isValidReviewer(notes.getChange().getDest(), member)) {
-        reviewers.add(member.getId());
+        reviewers.add(member.id());
       }
     }
 
@@ -375,7 +375,7 @@
       // Check ref permission instead of change permission, since change permissions take into
       // account the private bit, whereas adding a user as a reviewer is explicitly allowing them to
       // see private changes.
-      permissionBackend.absentUser(member.getId()).ref(branch).check(RefPermission.READ);
+      permissionBackend.absentUser(member.id()).ref(branch).check(RefPermission.READ);
       return true;
     } catch (AuthException e) {
       return false;
diff --git a/java/com/google/gerrit/server/events/EventFactory.java b/java/com/google/gerrit/server/events/EventFactory.java
index b57dacb..bc91807 100644
--- a/java/com/google/gerrit/server/events/EventFactory.java
+++ b/java/com/google/gerrit/server/events/EventFactory.java
@@ -571,8 +571,8 @@
    */
   public AccountAttribute asAccountAttribute(AccountState accountState) {
     AccountAttribute who = new AccountAttribute();
-    who.name = accountState.getAccount().getFullName();
-    who.email = accountState.getAccount().getPreferredEmail();
+    who.name = accountState.getAccount().fullName();
+    who.email = accountState.getAccount().preferredEmail();
     who.username = accountState.getUserName().orElse(null);
     return who;
   }
diff --git a/java/com/google/gerrit/server/extensions/events/EventUtil.java b/java/com/google/gerrit/server/extensions/events/EventUtil.java
index 7122a4c..8b58f4f 100644
--- a/java/com/google/gerrit/server/extensions/events/EventUtil.java
+++ b/java/com/google/gerrit/server/extensions/events/EventUtil.java
@@ -89,13 +89,13 @@
   }
 
   public AccountInfo accountInfo(AccountState accountState) {
-    if (accountState == null || accountState.getAccount().getId() == null) {
+    if (accountState == null || accountState.getAccount().id() == null) {
       return null;
     }
     Account account = accountState.getAccount();
-    AccountInfo accountInfo = new AccountInfo(account.getId().get());
-    accountInfo.email = account.getPreferredEmail();
-    accountInfo.name = account.getFullName();
+    AccountInfo accountInfo = new AccountInfo(account.id().get());
+    accountInfo.email = account.preferredEmail();
+    accountInfo.name = account.fullName();
     accountInfo.username = accountState.getUserName().orElse(null);
     return accountInfo;
   }
@@ -107,7 +107,7 @@
       Integer value = e.getValue() != null ? Integer.valueOf(e.getValue()) : null;
       result.put(
           e.getKey(),
-          new ApprovalInfo(accountState.getAccount().getId().get(), value, null, null, ts));
+          new ApprovalInfo(accountState.getAccount().id().get(), value, null, null, ts));
     }
     return result;
   }
diff --git a/java/com/google/gerrit/server/git/MergeUtil.java b/java/com/google/gerrit/server/git/MergeUtil.java
index e464e81..9766b92 100644
--- a/java/com/google/gerrit/server/git/MergeUtil.java
+++ b/java/com/google/gerrit/server/git/MergeUtil.java
@@ -539,21 +539,21 @@
 
       final Account acc = identifiedUserFactory.create(a.accountId()).getAccount();
       final StringBuilder identbuf = new StringBuilder();
-      if (acc.getFullName() != null && acc.getFullName().length() > 0) {
+      if (acc.fullName() != null && acc.fullName().length() > 0) {
         if (identbuf.length() > 0) {
           identbuf.append(' ');
         }
-        identbuf.append(acc.getFullName());
+        identbuf.append(acc.fullName());
       }
-      if (acc.getPreferredEmail() != null && acc.getPreferredEmail().length() > 0) {
-        if (isSignedOffBy(footers, acc.getPreferredEmail())) {
+      if (acc.preferredEmail() != null && acc.preferredEmail().length() > 0) {
+        if (isSignedOffBy(footers, acc.preferredEmail())) {
           continue;
         }
         if (identbuf.length() > 0) {
           identbuf.append(' ');
         }
         identbuf.append('<');
-        identbuf.append(acc.getPreferredEmail());
+        identbuf.append(acc.preferredEmail());
         identbuf.append('>');
       }
       if (identbuf.length() == 0) {
diff --git a/java/com/google/gerrit/server/git/receive/ReplaceOp.java b/java/com/google/gerrit/server/git/receive/ReplaceOp.java
index e839400..05a0e0d 100644
--- a/java/com/google/gerrit/server/git/receive/ReplaceOp.java
+++ b/java/com/google/gerrit/server/git/receive/ReplaceOp.java
@@ -543,7 +543,7 @@
       try {
         ReplacePatchSetSender cm =
             replacePatchSetFactory.create(projectState.getNameKey(), notes.getChangeId());
-        cm.setFrom(ctx.getAccount().getAccount().getId());
+        cm.setFrom(ctx.getAccount().getAccount().id());
         cm.setPatchSet(newPatchSet, info);
         cm.setChangeMessage(msg.getMessage(), ctx.getWhen());
         cm.setNotify(ctx.getNotify(notes.getChangeId()));
diff --git a/java/com/google/gerrit/server/git/validators/AccountValidator.java b/java/com/google/gerrit/server/git/validators/AccountValidator.java
index 08870d3..cc4a7ec 100644
--- a/java/com/google/gerrit/server/git/validators/AccountValidator.java
+++ b/java/com/google/gerrit/server/git/validators/AccountValidator.java
@@ -87,10 +87,10 @@
       messages.add("cannot deactivate own account");
     }
 
-    String newPreferredEmail = newAccount.get().getPreferredEmail();
+    String newPreferredEmail = newAccount.get().preferredEmail();
     if (newPreferredEmail != null
         && (!oldAccount.isPresent()
-            || !newPreferredEmail.equals(oldAccount.get().getPreferredEmail()))) {
+            || !newPreferredEmail.equals(oldAccount.get().preferredEmail()))) {
       if (!emailValidator.isValid(newPreferredEmail)) {
         messages.add(
             String.format(
diff --git a/java/com/google/gerrit/server/group/db/AuditLogFormatter.java b/java/com/google/gerrit/server/group/db/AuditLogFormatter.java
index 508f5ef..454ce68 100644
--- a/java/com/google/gerrit/server/group/db/AuditLogFormatter.java
+++ b/java/com/google/gerrit/server/group/db/AuditLogFormatter.java
@@ -72,7 +72,7 @@
   }
 
   private static Optional<Account> getAccount(ImmutableSet<Account> accounts, Account.Id id) {
-    return accounts.stream().filter(account -> account.getId().equals(id)).findAny();
+    return accounts.stream().filter(account -> account.id().equals(id)).findAny();
   }
 
   public static AuditLogFormatter createPartiallyWorkingFallBack() {
@@ -119,7 +119,7 @@
    * @return a {@code PersonIdent} which can be used for the author of a commit
    */
   public PersonIdent getParsableAuthorIdent(Account account, PersonIdent personIdent) {
-    return getParsableAuthorIdent(account.getName(), account.getId(), personIdent);
+    return getParsableAuthorIdent(account.getName(), account.id(), personIdent);
   }
 
   /**
diff --git a/java/com/google/gerrit/server/index/account/AccountField.java b/java/com/google/gerrit/server/index/account/AccountField.java
index b881a35..f425339 100644
--- a/java/com/google/gerrit/server/index/account/AccountField.java
+++ b/java/com/google/gerrit/server/index/account/AccountField.java
@@ -44,7 +44,7 @@
 /** Secondary index schemas for accounts. */
 public class AccountField {
   public static final FieldDef<AccountState, Integer> ID =
-      integer("id").stored().build(a -> a.getAccount().getId().get());
+      integer("id").stored().build(a -> a.getAccount().id().get());
 
   /**
    * External IDs.
@@ -77,10 +77,10 @@
    */
   public static final FieldDef<AccountState, Iterable<String>> NAME_PART_NO_SECONDARY_EMAIL =
       prefix("name2")
-          .buildRepeatable(a -> getNameParts(a, Arrays.asList(a.getAccount().getPreferredEmail())));
+          .buildRepeatable(a -> getNameParts(a, Arrays.asList(a.getAccount().preferredEmail())));
 
   public static final FieldDef<AccountState, String> FULL_NAME =
-      exact("full_name").build(a -> a.getAccount().getFullName());
+      exact("full_name").build(a -> a.getAccount().fullName());
 
   public static final FieldDef<AccountState, String> ACTIVE =
       exact("inactive").build(a -> a.getAccount().isActive() ? "1" : "0");
@@ -97,7 +97,7 @@
               a ->
                   FluentIterable.from(a.getExternalIds())
                       .transform(ExternalId::email)
-                      .append(Collections.singleton(a.getAccount().getPreferredEmail()))
+                      .append(Collections.singleton(a.getAccount().preferredEmail()))
                       .filter(Objects::nonNull)
                       .transform(String::toLowerCase)
                       .toSet());
@@ -106,15 +106,15 @@
       prefix("preferredemail")
           .build(
               a -> {
-                String preferredEmail = a.getAccount().getPreferredEmail();
+                String preferredEmail = a.getAccount().preferredEmail();
                 return preferredEmail != null ? preferredEmail.toLowerCase() : null;
               });
 
   public static final FieldDef<AccountState, String> PREFERRED_EMAIL_EXACT =
-      exact("preferredemail_exact").build(a -> a.getAccount().getPreferredEmail());
+      exact("preferredemail_exact").build(a -> a.getAccount().preferredEmail());
 
   public static final FieldDef<AccountState, Timestamp> REGISTERED =
-      timestamp("registered").build(a -> a.getAccount().getRegisteredOn());
+      timestamp("registered").build(a -> a.getAccount().registeredOn());
 
   public static final FieldDef<AccountState, String> USERNAME =
       exact("username").build(a -> a.getUserName().map(String::toLowerCase).orElse(""));
@@ -138,14 +138,14 @@
       storedOnly("ref_state")
           .buildRepeatable(
               a -> {
-                if (a.getAccount().getMetaId() == null) {
+                if (a.getAccount().metaId() == null) {
                   return ImmutableList.of();
                 }
 
                 return ImmutableList.of(
                     RefState.create(
-                            RefNames.refsUsers(a.getAccount().getId()),
-                            ObjectId.fromString(a.getAccount().getMetaId()))
+                            RefNames.refsUsers(a.getAccount().id()),
+                            ObjectId.fromString(a.getAccount().metaId()))
                         // We use the default AllUsers name to avoid having to pass around that
                         // variable just for indexing.
                         // This field is only used for staleness detection which will discover the
@@ -169,7 +169,7 @@
                       .collect(toSet()));
 
   private static final Set<String> getNameParts(AccountState a, Iterable<String> emails) {
-    String fullName = a.getAccount().getFullName();
+    String fullName = a.getAccount().fullName();
     Set<String> parts = SchemaUtil.getNameParts(fullName, emails);
 
     // Additional values not currently added by getPersonParts.
diff --git a/java/com/google/gerrit/server/mail/MailUtil.java b/java/com/google/gerrit/server/mail/MailUtil.java
index 4afcc7b..26ebb5c 100644
--- a/java/com/google/gerrit/server/mail/MailUtil.java
+++ b/java/com/google/gerrit/server/mail/MailUtil.java
@@ -62,7 +62,7 @@
   @SuppressWarnings("deprecation")
   private static Account.Id toAccountId(AccountResolver accountResolver, String nameOrEmail)
       throws UnprocessableEntityException, IOException, ConfigInvalidException {
-    return accountResolver.resolveByNameOrEmail(nameOrEmail).asUnique().getAccount().getId();
+    return accountResolver.resolveByNameOrEmail(nameOrEmail).asUnique().getAccount().id();
   }
 
   private static boolean isReviewer(FooterLine candidateFooterLine) {
diff --git a/java/com/google/gerrit/server/mail/send/AddKeySender.java b/java/com/google/gerrit/server/mail/send/AddKeySender.java
index 6a4918c..013b4bb 100644
--- a/java/com/google/gerrit/server/mail/send/AddKeySender.java
+++ b/java/com/google/gerrit/server/mail/send/AddKeySender.java
@@ -79,7 +79,7 @@
   }
 
   public String getEmail() {
-    return user.getAccount().getPreferredEmail();
+    return user.getAccount().preferredEmail();
   }
 
   public String getUserNameEmail() {
diff --git a/java/com/google/gerrit/server/mail/send/DeleteKeySender.java b/java/com/google/gerrit/server/mail/send/DeleteKeySender.java
index 39e21a5..f0acbed 100644
--- a/java/com/google/gerrit/server/mail/send/DeleteKeySender.java
+++ b/java/com/google/gerrit/server/mail/send/DeleteKeySender.java
@@ -75,7 +75,7 @@
   }
 
   public String getEmail() {
-    return user.getAccount().getPreferredEmail();
+    return user.getAccount().preferredEmail();
   }
 
   public String getUserNameEmail() {
diff --git a/java/com/google/gerrit/server/mail/send/FromAddressGeneratorProvider.java b/java/com/google/gerrit/server/mail/send/FromAddressGeneratorProvider.java
index b77909e..c5f0257 100644
--- a/java/com/google/gerrit/server/mail/send/FromAddressGeneratorProvider.java
+++ b/java/com/google/gerrit/server/mail/send/FromAddressGeneratorProvider.java
@@ -124,8 +124,8 @@
       String senderName;
       if (fromId != null) {
         Optional<Account> a = accountCache.get(fromId).map(AccountState::getAccount);
-        String fullName = a.map(Account::getFullName).orElse(null);
-        String userEmail = a.map(Account::getPreferredEmail).orElse(null);
+        String fullName = a.map(Account::fullName).orElse(null);
+        String userEmail = a.map(Account::preferredEmail).orElse(null);
         if (canRelay(userEmail)) {
           return new Address(fullName, userEmail);
         }
@@ -208,8 +208,7 @@
       final String senderName;
 
       if (fromId != null) {
-        String fullName =
-            accountCache.get(fromId).map(a -> a.getAccount().getFullName()).orElse(null);
+        String fullName = accountCache.get(fromId).map(a -> a.getAccount().fullName()).orElse(null);
         if (fullName == null || "".equals(fullName)) {
           fullName = anonymousCowardName;
         }
diff --git a/java/com/google/gerrit/server/mail/send/HttpPasswordUpdateSender.java b/java/com/google/gerrit/server/mail/send/HttpPasswordUpdateSender.java
index ca332ff..3c62aa1 100644
--- a/java/com/google/gerrit/server/mail/send/HttpPasswordUpdateSender.java
+++ b/java/com/google/gerrit/server/mail/send/HttpPasswordUpdateSender.java
@@ -59,7 +59,7 @@
   }
 
   public String getEmail() {
-    return user.getAccount().getPreferredEmail();
+    return user.getAccount().preferredEmail();
   }
 
   public String getUserNameEmail() {
diff --git a/java/com/google/gerrit/server/mail/send/OutgoingEmail.java b/java/com/google/gerrit/server/mail/send/OutgoingEmail.java
index e56a38f..37d2125 100644
--- a/java/com/google/gerrit/server/mail/send/OutgoingEmail.java
+++ b/java/com/google/gerrit/server/mail/send/OutgoingEmail.java
@@ -144,7 +144,7 @@
           } else if (useHtml() && prefs.getEmailFormat() == EmailFormat.PLAINTEXT) {
             removeUser(thisUserAccount);
             smtpRcptToPlaintextOnly.add(
-                new Address(thisUserAccount.getFullName(), thisUserAccount.getPreferredEmail()));
+                new Address(thisUserAccount.fullName(), thisUserAccount.preferredEmail()));
           }
         }
         if (smtpRcptTo.isEmpty() && smtpRcptToPlaintextOnly.isEmpty()) {
@@ -250,8 +250,8 @@
     StringBuilder f = new StringBuilder();
     Optional<Account> account = args.accountCache.get(fromId).map(AccountState::getAccount);
     if (account.isPresent()) {
-      String name = account.get().getFullName();
-      String email = account.get().getPreferredEmail();
+      String name = account.get().fullName();
+      String email = account.get().preferredEmail();
       if ((name != null && !name.isEmpty()) || (email != null && !email.isEmpty())) {
         f.append("From");
         if (name != null && !name.isEmpty()) {
@@ -327,9 +327,9 @@
     Optional<Account> account = args.accountCache.get(accountId).map(AccountState::getAccount);
     String name = null;
     if (account.isPresent()) {
-      name = account.get().getFullName();
+      name = account.get().fullName();
       if (name == null) {
-        name = account.get().getPreferredEmail();
+        name = account.get().preferredEmail();
       }
     }
     if (name == null) {
@@ -348,8 +348,8 @@
   protected String getNameEmailFor(Account.Id accountId) {
     Optional<Account> account = args.accountCache.get(accountId).map(AccountState::getAccount);
     if (account.isPresent()) {
-      String name = account.get().getFullName();
-      String email = account.get().getPreferredEmail();
+      String name = account.get().fullName();
+      String email = account.get().preferredEmail();
       if (name != null && email != null) {
         return name + " <" + email + ">";
       } else if (name != null) {
@@ -375,8 +375,8 @@
     }
 
     Account account = accountState.get().getAccount();
-    String name = account.getFullName();
-    String email = account.getPreferredEmail();
+    String name = account.fullName();
+    String email = account.preferredEmail();
     if (name != null && email != null) {
       return name + " <" + email + ">";
     } else if (email != null) {
@@ -511,11 +511,11 @@
     }
 
     Account account = accountState.get();
-    String e = account.getPreferredEmail();
+    String e = account.preferredEmail();
     if (!account.isActive() || e == null) {
       return null;
     }
-    return new Address(account.getFullName(), e);
+    return new Address(account.fullName(), e);
   }
 
   protected void setupSoyContext() {
@@ -553,7 +553,7 @@
   }
 
   protected void removeUser(Account user) {
-    String fromEmail = user.getPreferredEmail();
+    String fromEmail = user.preferredEmail();
     for (Iterator<Address> j = smtpRcptTo.iterator(); j.hasNext(); ) {
       if (j.next().getEmail().equals(fromEmail)) {
         j.remove();
diff --git a/java/com/google/gerrit/server/mail/send/ProjectWatch.java b/java/com/google/gerrit/server/mail/send/ProjectWatch.java
index eb3b831..8b426ac 100644
--- a/java/com/google/gerrit/server/mail/send/ProjectWatch.java
+++ b/java/com/google/gerrit/server/mail/send/ProjectWatch.java
@@ -66,7 +66,7 @@
     Set<Account.Id> projectWatchers = new HashSet<>();
 
     for (AccountState a : args.accountQueryProvider.get().byWatchedProject(project)) {
-      Account.Id accountId = a.getAccount().getId();
+      Account.Id accountId = a.getAccount().id();
       for (Map.Entry<ProjectWatchKey, ImmutableSet<NotifyType>> e :
           a.getProjectWatches().entrySet()) {
         if (project.equals(e.getKey().project())
@@ -81,7 +81,7 @@
       for (Map.Entry<ProjectWatchKey, ImmutableSet<NotifyType>> e :
           a.getProjectWatches().entrySet()) {
         if (args.allProjectsName.equals(e.getKey().project())) {
-          Account.Id accountId = a.getAccount().getId();
+          Account.Id accountId = a.getAccount().id();
           if (!projectWatchers.contains(accountId)) {
             add(matching, accountId, e.getKey(), e.getValue(), type);
           }
diff --git a/java/com/google/gerrit/server/notedb/ChangeNoteUtil.java b/java/com/google/gerrit/server/notedb/ChangeNoteUtil.java
index 628dfd2..1ccd52f 100644
--- a/java/com/google/gerrit/server/notedb/ChangeNoteUtil.java
+++ b/java/com/google/gerrit/server/notedb/ChangeNoteUtil.java
@@ -96,8 +96,8 @@
   @VisibleForTesting
   public PersonIdent newIdent(Account author, Date when, PersonIdent serverIdent) {
     return new PersonIdent(
-        "Gerrit User " + author.getId(),
-        author.getId().get() + "@" + serverId,
+        "Gerrit User " + author.id(),
+        author.id().get() + "@" + serverId,
         when,
         serverIdent.getTimeZone());
   }
diff --git a/java/com/google/gerrit/server/notedb/LegacyChangeNoteWrite.java b/java/com/google/gerrit/server/notedb/LegacyChangeNoteWrite.java
index 1e6e9e8..604a211 100644
--- a/java/com/google/gerrit/server/notedb/LegacyChangeNoteWrite.java
+++ b/java/com/google/gerrit/server/notedb/LegacyChangeNoteWrite.java
@@ -58,7 +58,7 @@
   @VisibleForTesting
   public PersonIdent newIdent(Account author, Date when, PersonIdent serverIdent) {
     return new PersonIdent(
-        author.toString(), author.getId().get() + "@" + serverId, when, serverIdent.getTimeZone());
+        author.toString(), author.id().get() + "@" + serverId, when, serverIdent.getTimeZone());
   }
 
   public String getServerId() {
diff --git a/java/com/google/gerrit/server/query/account/AccountQueryProcessor.java b/java/com/google/gerrit/server/query/account/AccountQueryProcessor.java
index 7a7381d..19d2215 100644
--- a/java/com/google/gerrit/server/query/account/AccountQueryProcessor.java
+++ b/java/com/google/gerrit/server/query/account/AccountQueryProcessor.java
@@ -77,6 +77,6 @@
 
   @Override
   protected String formatForLogging(AccountState accountState) {
-    return accountState.getAccount().getId().toString();
+    return accountState.getAccount().id().toString();
   }
 }
diff --git a/java/com/google/gerrit/server/query/account/CanSeeChangePredicate.java b/java/com/google/gerrit/server/query/account/CanSeeChangePredicate.java
index 8bbeb24..c2d8de9 100644
--- a/java/com/google/gerrit/server/query/account/CanSeeChangePredicate.java
+++ b/java/com/google/gerrit/server/query/account/CanSeeChangePredicate.java
@@ -37,7 +37,7 @@
   public boolean match(AccountState accountState) {
     try {
       permissionBackend
-          .absentUser(accountState.getAccount().getId())
+          .absentUser(accountState.getAccount().id())
           .change(changeNotes)
           .check(ChangePermission.READ);
       return true;
diff --git a/java/com/google/gerrit/server/query/account/InternalAccountQuery.java b/java/com/google/gerrit/server/query/account/InternalAccountQuery.java
index 490991a..0253ede 100644
--- a/java/com/google/gerrit/server/query/account/InternalAccountQuery.java
+++ b/java/com/google/gerrit/server/query/account/InternalAccountQuery.java
@@ -82,7 +82,7 @@
     }
 
     return query(AccountPredicates.preferredEmail(email)).stream()
-        .filter(a -> a.getAccount().getPreferredEmail().equals(email))
+        .filter(a -> a.getAccount().preferredEmail().equals(email))
         .collect(toList());
   }
 
@@ -117,7 +117,7 @@
       String email = emailList.get(i);
       Set<AccountState> matchingAccounts =
           r.get(i).stream()
-              .filter(a -> a.getAccount().getPreferredEmail().equals(email))
+              .filter(a -> a.getAccount().preferredEmail().equals(email))
               .collect(toSet());
       accountsByEmail.putAll(email, matchingAccounts);
     }
diff --git a/java/com/google/gerrit/server/query/change/ChangeQueryBuilder.java b/java/com/google/gerrit/server/query/change/ChangeQueryBuilder.java
index db91bb2..2f722d3 100644
--- a/java/com/google/gerrit/server/query/change/ChangeQueryBuilder.java
+++ b/java/com/google/gerrit/server/query/change/ChangeQueryBuilder.java
@@ -1326,7 +1326,7 @@
   private Set<Account.Id> getMembers(AccountGroup.UUID g) throws IOException {
     Set<Account.Id> accounts;
     Set<Account.Id> allMembers =
-        args.groupMembers.listAccounts(g).stream().map(Account::getId).collect(toSet());
+        args.groupMembers.listAccounts(g).stream().map(Account::id).collect(toSet());
     int maxTerms = args.indexConfig.maxTerms();
     if (allMembers.size() > maxTerms) {
       // limit the number of query terms otherwise Gerrit will barf
diff --git a/java/com/google/gerrit/server/restapi/account/AddSshKey.java b/java/com/google/gerrit/server/restapi/account/AddSshKey.java
index 7c05f4e..1fcf0bd 100644
--- a/java/com/google/gerrit/server/restapi/account/AddSshKey.java
+++ b/java/com/google/gerrit/server/restapi/account/AddSshKey.java
@@ -104,7 +104,7 @@
         addKeyFactory.create(user, sshKey).send();
       } catch (EmailException e) {
         logger.atSevere().withCause(e).log(
-            "Cannot send SSH key added message to %s", user.getAccount().getPreferredEmail());
+            "Cannot send SSH key added message to %s", user.getAccount().preferredEmail());
       }
 
       user.getUserName().ifPresent(sshKeyCache::evict);
diff --git a/java/com/google/gerrit/server/restapi/account/DeleteSshKey.java b/java/com/google/gerrit/server/restapi/account/DeleteSshKey.java
index 054f4bc..b470be8 100644
--- a/java/com/google/gerrit/server/restapi/account/DeleteSshKey.java
+++ b/java/com/google/gerrit/server/restapi/account/DeleteSshKey.java
@@ -74,7 +74,7 @@
       deleteKeySenderFactory.create(user, rsrc.getSshKey()).send();
     } catch (EmailException e) {
       logger.atSevere().withCause(e).log(
-          "Cannot send SSH key deletion message to %s", user.getAccount().getPreferredEmail());
+          "Cannot send SSH key deletion message to %s", user.getAccount().preferredEmail());
     }
     user.getUserName().ifPresent(sshKeyCache::evict);
 
diff --git a/java/com/google/gerrit/server/restapi/account/EmailsCollection.java b/java/com/google/gerrit/server/restapi/account/EmailsCollection.java
index 434b9d6..7a498f4 100644
--- a/java/com/google/gerrit/server/restapi/account/EmailsCollection.java
+++ b/java/com/google/gerrit/server/restapi/account/EmailsCollection.java
@@ -63,7 +63,7 @@
     }
 
     if ("preferred".equals(id.get())) {
-      String email = rsrc.getUser().getAccount().getPreferredEmail();
+      String email = rsrc.getUser().getAccount().preferredEmail();
       if (Strings.isNullOrEmpty(email)) {
         throw new ResourceNotFoundException(id);
       }
diff --git a/java/com/google/gerrit/server/restapi/account/GetDetail.java b/java/com/google/gerrit/server/restapi/account/GetDetail.java
index 72044c4..b940e07 100644
--- a/java/com/google/gerrit/server/restapi/account/GetDetail.java
+++ b/java/com/google/gerrit/server/restapi/account/GetDetail.java
@@ -38,8 +38,8 @@
   @Override
   public AccountDetailInfo apply(AccountResource rsrc) throws PermissionBackendException {
     Account a = rsrc.getUser().getAccount();
-    AccountDetailInfo info = new AccountDetailInfo(a.getId().get());
-    info.registeredOn = a.getRegisteredOn();
+    AccountDetailInfo info = new AccountDetailInfo(a.id().get());
+    info.registeredOn = a.registeredOn();
     info.inactive = !a.isActive() ? true : null;
     directory.fillAccountInfo(Collections.singleton(info), EnumSet.allOf(FillOptions.class));
     return info;
diff --git a/java/com/google/gerrit/server/restapi/account/GetEmail.java b/java/com/google/gerrit/server/restapi/account/GetEmail.java
index 3118380..b050003 100644
--- a/java/com/google/gerrit/server/restapi/account/GetEmail.java
+++ b/java/com/google/gerrit/server/restapi/account/GetEmail.java
@@ -29,7 +29,7 @@
   public EmailInfo apply(AccountResource.Email rsrc) {
     EmailInfo e = new EmailInfo();
     e.email = rsrc.getEmail();
-    e.preferred(rsrc.getUser().getAccount().getPreferredEmail());
+    e.preferred(rsrc.getUser().getAccount().preferredEmail());
     return e;
   }
 }
diff --git a/java/com/google/gerrit/server/restapi/account/GetEmails.java b/java/com/google/gerrit/server/restapi/account/GetEmails.java
index 8c21536..ffda7fb 100644
--- a/java/com/google/gerrit/server/restapi/account/GetEmails.java
+++ b/java/com/google/gerrit/server/restapi/account/GetEmails.java
@@ -58,7 +58,7 @@
   private static EmailInfo toEmailInfo(AccountResource rsrc, String email) {
     EmailInfo e = new EmailInfo();
     e.email = email;
-    e.preferred(rsrc.getUser().getAccount().getPreferredEmail());
+    e.preferred(rsrc.getUser().getAccount().preferredEmail());
     return e;
   }
 }
diff --git a/java/com/google/gerrit/server/restapi/account/GetName.java b/java/com/google/gerrit/server/restapi/account/GetName.java
index bdf379e..743ed4d 100644
--- a/java/com/google/gerrit/server/restapi/account/GetName.java
+++ b/java/com/google/gerrit/server/restapi/account/GetName.java
@@ -23,6 +23,6 @@
 public class GetName implements RestReadView<AccountResource> {
   @Override
   public String apply(AccountResource rsrc) {
-    return Strings.nullToEmpty(rsrc.getUser().getAccount().getFullName());
+    return Strings.nullToEmpty(rsrc.getUser().getAccount().fullName());
   }
 }
diff --git a/java/com/google/gerrit/server/restapi/account/GetStatus.java b/java/com/google/gerrit/server/restapi/account/GetStatus.java
index bc7094f..6abc46d 100644
--- a/java/com/google/gerrit/server/restapi/account/GetStatus.java
+++ b/java/com/google/gerrit/server/restapi/account/GetStatus.java
@@ -23,6 +23,6 @@
 public class GetStatus implements RestReadView<AccountResource> {
   @Override
   public String apply(AccountResource rsrc) {
-    return Strings.nullToEmpty(rsrc.getUser().getAccount().getStatus());
+    return Strings.nullToEmpty(rsrc.getUser().getAccount().status());
   }
 }
diff --git a/java/com/google/gerrit/server/restapi/account/PutAgreement.java b/java/com/google/gerrit/server/restapi/account/PutAgreement.java
index 7bac359..5985e17 100644
--- a/java/com/google/gerrit/server/restapi/account/PutAgreement.java
+++ b/java/com/google/gerrit/server/restapi/account/PutAgreement.java
@@ -93,7 +93,7 @@
 
     AccountState accountState = self.get().state();
     try {
-      addMembers.addMembers(uuid, ImmutableSet.of(accountState.getAccount().getId()));
+      addMembers.addMembers(uuid, ImmutableSet.of(accountState.getAccount().id()));
     } catch (NoSuchGroupException e) {
       throw new ResourceConflictException("autoverify group not found");
     }
diff --git a/java/com/google/gerrit/server/restapi/account/PutHttpPassword.java b/java/com/google/gerrit/server/restapi/account/PutHttpPassword.java
index 62bb0cd..7b89b9c 100644
--- a/java/com/google/gerrit/server/restapi/account/PutHttpPassword.java
+++ b/java/com/google/gerrit/server/restapi/account/PutHttpPassword.java
@@ -131,7 +131,7 @@
           .send();
     } catch (EmailException e) {
       logger.atSevere().withCause(e).log(
-          "Cannot send HttpPassword update message to %s", user.getAccount().getPreferredEmail());
+          "Cannot send HttpPassword update message to %s", user.getAccount().preferredEmail());
     }
 
     return Strings.isNullOrEmpty(newPassword) ? Response.none() : Response.ok(newPassword);
diff --git a/java/com/google/gerrit/server/restapi/account/PutName.java b/java/com/google/gerrit/server/restapi/account/PutName.java
index 30dfc66..9e8f5be 100644
--- a/java/com/google/gerrit/server/restapi/account/PutName.java
+++ b/java/com/google/gerrit/server/restapi/account/PutName.java
@@ -84,8 +84,8 @@
             .get()
             .update("Set Full Name via API", user.getAccountId(), u -> u.setFullName(newName))
             .orElseThrow(() -> new ResourceNotFoundException("account not found"));
-    return Strings.isNullOrEmpty(accountState.getAccount().getFullName())
+    return Strings.isNullOrEmpty(accountState.getAccount().fullName())
         ? Response.none()
-        : Response.ok(accountState.getAccount().getFullName());
+        : Response.ok(accountState.getAccount().fullName());
   }
 }
diff --git a/java/com/google/gerrit/server/restapi/account/PutPreferred.java b/java/com/google/gerrit/server/restapi/account/PutPreferred.java
index b8edec3..3799b24 100644
--- a/java/com/google/gerrit/server/restapi/account/PutPreferred.java
+++ b/java/com/google/gerrit/server/restapi/account/PutPreferred.java
@@ -85,7 +85,7 @@
             "Set Preferred Email via API",
             user.getAccountId(),
             (a, u) -> {
-              if (preferredEmail.equals(a.getAccount().getPreferredEmail())) {
+              if (preferredEmail.equals(a.getAccount().preferredEmail())) {
                 alreadyPreferred.set(true);
               } else {
                 // check if the user has a matching email
@@ -128,7 +128,7 @@
                     }
 
                     // claim the email now
-                    u.addExternalId(ExternalId.createEmail(a.getAccount().getId(), preferredEmail));
+                    u.addExternalId(ExternalId.createEmail(a.getAccount().id(), preferredEmail));
                     matchingEmail = preferredEmail;
                   } else {
                     // Realm says that the email doesn't belong to the user. This can only happen as
diff --git a/java/com/google/gerrit/server/restapi/account/PutStatus.java b/java/com/google/gerrit/server/restapi/account/PutStatus.java
index 4f1128d..29f69ab 100644
--- a/java/com/google/gerrit/server/restapi/account/PutStatus.java
+++ b/java/com/google/gerrit/server/restapi/account/PutStatus.java
@@ -73,8 +73,8 @@
             .get()
             .update("Set Status via API", user.getAccountId(), u -> u.setStatus(newStatus))
             .orElseThrow(() -> new ResourceNotFoundException("account not found"));
-    return Strings.isNullOrEmpty(accountState.getAccount().getStatus())
+    return Strings.isNullOrEmpty(accountState.getAccount().status())
         ? Response.none()
-        : Response.ok(accountState.getAccount().getStatus());
+        : Response.ok(accountState.getAccount().status());
   }
 }
diff --git a/java/com/google/gerrit/server/restapi/account/QueryAccounts.java b/java/com/google/gerrit/server/restapi/account/QueryAccounts.java
index e10d8bf..d7bece3 100644
--- a/java/com/google/gerrit/server/restapi/account/QueryAccounts.java
+++ b/java/com/google/gerrit/server/restapi/account/QueryAccounts.java
@@ -209,7 +209,7 @@
       }
       QueryResult<AccountState> result = queryProcessor.query(queryPred);
       for (AccountState accountState : result.entities()) {
-        Account.Id id = accountState.getAccount().getId();
+        Account.Id id = accountState.getAccount().id();
         matches.put(id, accountLoader.get(id));
       }
 
diff --git a/java/com/google/gerrit/server/restapi/change/DeleteAssignee.java b/java/com/google/gerrit/server/restapi/change/DeleteAssignee.java
index 02387be..2bddb1f 100644
--- a/java/com/google/gerrit/server/restapi/change/DeleteAssignee.java
+++ b/java/com/google/gerrit/server/restapi/change/DeleteAssignee.java
@@ -105,7 +105,7 @@
     }
 
     public Account.Id getDeletedAssignee() {
-      return deletedAssignee != null ? deletedAssignee.getAccount().getId() : null;
+      return deletedAssignee != null ? deletedAssignee.getAccount().id() : null;
     }
 
     private void addMessage(
diff --git a/java/com/google/gerrit/server/restapi/change/DeleteVote.java b/java/com/google/gerrit/server/restapi/change/DeleteVote.java
index 0c8240a..442e99a 100644
--- a/java/com/google/gerrit/server/restapi/change/DeleteVote.java
+++ b/java/com/google/gerrit/server/restapi/change/DeleteVote.java
@@ -170,7 +170,7 @@
       boolean found = false;
       LabelTypes labelTypes = projectState.getLabelTypes(ctx.getNotes());
 
-      Account.Id accountId = accountState.getAccount().getId();
+      Account.Id accountId = accountState.getAccount().id();
 
       for (PatchSetApproval a :
           approvalsUtil.byPatchSetUser(
diff --git a/java/com/google/gerrit/server/restapi/change/ReviewersUtil.java b/java/com/google/gerrit/server/restapi/change/ReviewersUtil.java
index d8a6fe8..d2725c1 100644
--- a/java/com/google/gerrit/server/restapi/change/ReviewersUtil.java
+++ b/java/com/google/gerrit/server/restapi/change/ReviewersUtil.java
@@ -405,7 +405,7 @@
 
       // require that at least one member in the group can see the change
       for (Account account : members) {
-        if (visibilityControl.isVisibleTo(account.getId())) {
+        if (visibilityControl.isVisibleTo(account.id())) {
           if (needsConfirmation) {
             result.allowedWithConfirmation = true;
           } else {
diff --git a/java/com/google/gerrit/server/restapi/group/AddMembers.java b/java/com/google/gerrit/server/restapi/group/AddMembers.java
index a841897..2b4b4b1 100644
--- a/java/com/google/gerrit/server/restapi/group/AddMembers.java
+++ b/java/com/google/gerrit/server/restapi/group/AddMembers.java
@@ -130,7 +130,7 @@
         throw new UnprocessableEntityException(
             String.format("Account Inactive: %s", nameOrEmailOrId));
       }
-      newMemberIds.add(a.getId());
+      newMemberIds.add(a.id());
     }
 
     AccountGroup.UUID groupUuid = internalGroup.getGroupUUID();
diff --git a/java/com/google/gerrit/server/restapi/group/CreateGroup.java b/java/com/google/gerrit/server/restapi/group/CreateGroup.java
index 043bbd9..8c1be49 100644
--- a/java/com/google/gerrit/server/restapi/group/CreateGroup.java
+++ b/java/com/google/gerrit/server/restapi/group/CreateGroup.java
@@ -148,7 +148,7 @@
           throw new UnprocessableEntityException(
               String.format("Account Inactive: %s", nameOrEmailOrId));
         }
-        members.add(a.getId());
+        members.add(a.id());
       }
       args.initialMembers = members;
     } else {
diff --git a/java/com/google/gerrit/server/restapi/group/DeleteMembers.java b/java/com/google/gerrit/server/restapi/group/DeleteMembers.java
index b448631..5d1d447 100644
--- a/java/com/google/gerrit/server/restapi/group/DeleteMembers.java
+++ b/java/com/google/gerrit/server/restapi/group/DeleteMembers.java
@@ -68,7 +68,7 @@
 
     Set<Account.Id> membersToRemove = new HashSet<>();
     for (String nameOrEmail : input.members) {
-      membersToRemove.add(accountResolver.resolve(nameOrEmail).asUnique().getAccount().getId());
+      membersToRemove.add(accountResolver.resolve(nameOrEmail).asUnique().getAccount().id());
     }
     AccountGroup.UUID groupUuid = internalGroup.getGroupUUID();
     try {
diff --git a/java/com/google/gerrit/server/restapi/project/CheckAccess.java b/java/com/google/gerrit/server/restapi/project/CheckAccess.java
index 41bcbb8..ac1494e 100644
--- a/java/com/google/gerrit/server/restapi/project/CheckAccess.java
+++ b/java/com/google/gerrit/server/restapi/project/CheckAccess.java
@@ -72,7 +72,7 @@
       throw new BadRequestException("input requires 'account'");
     }
 
-    Account.Id match = accountResolver.resolve(input.account).asUnique().getAccount().getId();
+    Account.Id match = accountResolver.resolve(input.account).asUnique().getAccount().id();
 
     AccessCheckInfo info = new AccessCheckInfo();
     try {
diff --git a/java/com/google/gerrit/server/submit/SubmitStrategyOp.java b/java/com/google/gerrit/server/submit/SubmitStrategyOp.java
index b1c7dd9..ce6862f 100644
--- a/java/com/google/gerrit/server/submit/SubmitStrategyOp.java
+++ b/java/com/google/gerrit/server/submit/SubmitStrategyOp.java
@@ -387,8 +387,8 @@
     requireNonNull(submitter, "getByAccountName called before submitter populated");
     Optional<Account> account =
         args.accountCache.get(submitter.accountId()).map(AccountState::getAccount);
-    if (account.isPresent() && account.get().getFullName() != null) {
-      return " by " + account.get().getFullName();
+    if (account.isPresent() && account.get().fullName() != null) {
+      return " by " + account.get().fullName();
     }
     return "";
   }
diff --git a/java/com/google/gerrit/sshd/GerritGSSAuthenticator.java b/java/com/google/gerrit/sshd/GerritGSSAuthenticator.java
index adb5085..01a8cb6 100644
--- a/java/com/google/gerrit/sshd/GerritGSSAuthenticator.java
+++ b/java/com/google/gerrit/sshd/GerritGSSAuthenticator.java
@@ -77,6 +77,6 @@
         sshScope,
         sshLog,
         sd,
-        SshUtil.createUser(sd, userFactory, account.get().getId()));
+        SshUtil.createUser(sd, userFactory, account.get().id()));
   }
 }
diff --git a/java/com/google/gerrit/sshd/NoShell.java b/java/com/google/gerrit/sshd/NoShell.java
index 5aaa647..d61d6f7 100644
--- a/java/com/google/gerrit/sshd/NoShell.java
+++ b/java/com/google/gerrit/sshd/NoShell.java
@@ -145,7 +145,7 @@
       msg.append("\r\n");
 
       Account account = user.getAccount();
-      String name = account.getFullName();
+      String name = account.fullName();
       if (name == null || name.isEmpty()) {
         name = user.getUserName().orElse(anonymousCowardName);
       }
diff --git a/java/com/google/gerrit/sshd/commands/LsUserRefs.java b/java/com/google/gerrit/sshd/commands/LsUserRefs.java
index 1f991e0..eb94044 100644
--- a/java/com/google/gerrit/sshd/commands/LsUserRefs.java
+++ b/java/com/google/gerrit/sshd/commands/LsUserRefs.java
@@ -76,7 +76,7 @@
   protected void run() throws Failure {
     Account.Id userAccountId;
     try {
-      userAccountId = accountResolver.resolve(userName).asUnique().getAccount().getId();
+      userAccountId = accountResolver.resolve(userName).asUnique().getAccount().id();
     } catch (UnprocessableEntityException e) {
       stdout.println(e.getMessage());
       stdout.flush();
diff --git a/java/com/google/gerrit/sshd/commands/SetMembersCommand.java b/java/com/google/gerrit/sshd/commands/SetMembersCommand.java
index 324257b..578f6fe 100644
--- a/java/com/google/gerrit/sshd/commands/SetMembersCommand.java
+++ b/java/com/google/gerrit/sshd/commands/SetMembersCommand.java
@@ -140,7 +140,7 @@
                     return "n/a";
                   }
                   return MoreObjects.firstNonNull(
-                      accountState.get().getAccount().getPreferredEmail(), "n/a");
+                      accountState.get().getAccount().preferredEmail(), "n/a");
                 })
             .collect(joining(", "));
     out.write(
diff --git a/java/com/google/gerrit/testing/FakeAccountCache.java b/java/com/google/gerrit/testing/FakeAccountCache.java
index c86bcf4..1850182 100644
--- a/java/com/google/gerrit/testing/FakeAccountCache.java
+++ b/java/com/google/gerrit/testing/FakeAccountCache.java
@@ -40,7 +40,10 @@
     if (state != null) {
       return state;
     }
-    return newState(new Account(accountId, TimeUtil.nowTs()));
+    return newState(
+        Account.builder(accountId, TimeUtil.nowTs())
+            .setMetaId("1234567812345678123456781234567812345678")
+            .build());
   }
 
   @Override
@@ -72,7 +75,7 @@
 
   public synchronized void put(Account account) {
     AccountState state = newState(account);
-    byId.put(account.getId(), state);
+    byId.put(account.id(), state);
   }
 
   private static AccountState newState(Account account) {
diff --git a/javatests/com/google/gerrit/acceptance/api/accounts/AccountIT.java b/javatests/com/google/gerrit/acceptance/api/accounts/AccountIT.java
index 5b6acfe..6990ab5 100644
--- a/javatests/com/google/gerrit/acceptance/api/accounts/AccountIT.java
+++ b/javatests/com/google/gerrit/acceptance/api/accounts/AccountIT.java
@@ -417,7 +417,7 @@
                   "Create Account Atomically",
                   accountId,
                   u -> u.setFullName(fullName).addExternalId(extId));
-      assertThat(accountState.getAccount().getFullName()).isEqualTo(fullName);
+      assertThat(accountState.getAccount().fullName()).isEqualTo(fullName);
 
       AccountInfo info = gApi.accounts().id(accountId.get()).get();
       assertThat(info.name).isEqualTo(fullName);
@@ -461,8 +461,8 @@
             .update("Set status", anonymousCoward.id(), u -> u.setStatus(status));
     assertThat(accountState).isPresent();
     Account account = accountState.get().getAccount();
-    assertThat(account.getFullName()).isNull();
-    assertThat(account.getStatus()).isEqualTo(status);
+    assertThat(account.fullName()).isNull();
+    assertThat(account.status()).isEqualTo(status);
     assertUserBranch(anonymousCoward.id(), null, status);
   }
 
@@ -479,7 +479,7 @@
       assertThat(ref).isNotNull();
       RevCommit c = rw.parseCommit(ref.getObjectId());
       long timestampDiffMs =
-          Math.abs(c.getCommitTime() * 1000L - getAccount(accountId).getRegisteredOn().getTime());
+          Math.abs(c.getCommitTime() * 1000L - getAccount(accountId).registeredOn().getTime());
       assertThat(timestampDiffMs).isAtMost(SECONDS.toMillis(1));
 
       // Check the 'account.config' file.
@@ -565,7 +565,7 @@
             new AccountActivationValidationListener() {
               @Override
               public void validateActivation(AccountState account) throws ValidationException {
-                String preferredEmail = account.getAccount().getPreferredEmail();
+                String preferredEmail = account.getAccount().preferredEmail();
                 if (preferredEmail == null || !preferredEmail.endsWith("@activatable.com")) {
                   throw new ValidationException("not allowed to active account");
                 }
@@ -573,7 +573,7 @@
 
               @Override
               public void validateDeactivation(AccountState account) throws ValidationException {
-                String preferredEmail = account.getAccount().getPreferredEmail();
+                String preferredEmail = account.getAccount().preferredEmail();
                 if (preferredEmail == null || !preferredEmail.endsWith("@deactivatable.com")) {
                   throw new ValidationException("not allowed to deactive account");
                 }
@@ -876,7 +876,7 @@
     assertThat(detail.email).isEqualTo(email);
     assertThat(detail.secondaryEmails).containsExactly(secondaryEmail);
     assertThat(detail.status).isEqualTo(status);
-    assertThat(detail.registeredOn).isEqualTo(getAccount(foo.id()).getRegisteredOn());
+    assertThat(detail.registeredOn).isEqualTo(getAccount(foo.id()).registeredOn());
     assertThat(detail.inactive).isNull();
     assertThat(detail._moreAccounts).isNull();
   }
@@ -2430,22 +2430,22 @@
   @Test
   public void checkMetaId() throws Exception {
     // metaId is set when account is loaded
-    assertThat(accounts.get(admin.id()).get().getAccount().getMetaId())
+    assertThat(accounts.get(admin.id()).get().getAccount().metaId())
         .isEqualTo(getMetaId(admin.id()));
 
     // metaId is set when account is created
     AccountsUpdate au = accountsUpdateProvider.get();
     Account.Id accountId = Account.id(seq.nextAccountId());
     AccountState accountState = au.insert("Create Test Account", accountId, u -> {});
-    assertThat(accountState.getAccount().getMetaId()).isEqualTo(getMetaId(accountId));
+    assertThat(accountState.getAccount().metaId()).isEqualTo(getMetaId(accountId));
 
     // metaId is set when account is updated
     Optional<AccountState> updatedAccountState =
         au.update("Set Full Name", accountId, u -> u.setFullName("foo"));
     assertThat(updatedAccountState).isPresent();
     Account updatedAccount = updatedAccountState.get().getAccount();
-    assertThat(accountState.getAccount().getMetaId()).isNotEqualTo(updatedAccount.getMetaId());
-    assertThat(updatedAccount.getMetaId()).isEqualTo(getMetaId(accountId));
+    assertThat(accountState.getAccount().metaId()).isNotEqualTo(updatedAccount.metaId());
+    assertThat(updatedAccount.metaId()).isEqualTo(getMetaId(accountId));
   }
 
   private EmailInput newEmailInput(String email, boolean noConfirmation) {
@@ -2587,8 +2587,8 @@
 
     assertThat(updatedAccountState).isPresent();
     Account updatedAccount = updatedAccountState.get().getAccount();
-    assertThat(updatedAccount.getStatus()).isEqualTo(status);
-    assertThat(updatedAccount.getFullName()).isEqualTo(fullName);
+    assertThat(updatedAccount.status()).isEqualTo(status);
+    assertThat(updatedAccount.fullName()).isEqualTo(fullName);
 
     accountInfo = gApi.accounts().id(admin.id().get()).get();
     assertThat(accountInfo.status).isEqualTo(status);
@@ -2643,8 +2643,8 @@
     assertThat(bgCounter.get()).isEqualTo(status.size());
 
     Account updatedAccount = accounts.get(admin.id()).get().getAccount();
-    assertThat(updatedAccount.getStatus()).isEqualTo(Iterables.getLast(status));
-    assertThat(updatedAccount.getFullName()).isEqualTo(admin.fullName());
+    assertThat(updatedAccount.status()).isEqualTo(Iterables.getLast(status));
+    assertThat(updatedAccount.fullName()).isEqualTo(admin.fullName());
 
     accountInfo = gApi.accounts().id(admin.id().get()).get();
     assertThat(accountInfo.status).isEqualTo(Iterables.getLast(status));
@@ -2690,12 +2690,12 @@
             "Set Status",
             admin.id(),
             (a, u) -> {
-              if ("A-1".equals(a.getAccount().getStatus())) {
+              if ("A-1".equals(a.getAccount().status())) {
                 bgCounterA1.getAndIncrement();
                 u.setStatus("B-1");
               }
 
-              if ("A-2".equals(a.getAccount().getStatus())) {
+              if ("A-2".equals(a.getAccount().status())) {
                 bgCounterA2.getAndIncrement();
                 u.setStatus("B-2");
               }
@@ -2705,8 +2705,8 @@
     assertThat(bgCounterA2.get()).isEqualTo(1);
 
     assertThat(updatedAccountState).isPresent();
-    assertThat(updatedAccountState.get().getAccount().getStatus()).isEqualTo("B-2");
-    assertThat(accounts.get(admin.id()).get().getAccount().getStatus()).isEqualTo("B-2");
+    assertThat(updatedAccountState.get().getAccount().status()).isEqualTo("B-2");
+    assertThat(accounts.get(admin.id()).get().getAccount().status()).isEqualTo("B-2");
     assertThat(gApi.accounts().id(admin.id().get()).get().status).isEqualTo("B-2");
   }
 
diff --git a/javatests/com/google/gerrit/acceptance/api/accounts/AccountIndexerIT.java b/javatests/com/google/gerrit/acceptance/api/accounts/AccountIndexerIT.java
index 7b20dbb..75a727d 100644
--- a/javatests/com/google/gerrit/acceptance/api/accounts/AccountIndexerIT.java
+++ b/javatests/com/google/gerrit/acceptance/api/accounts/AccountIndexerIT.java
@@ -66,7 +66,7 @@
     List<AccountState> matchedAccountStates =
         accountQueryProvider.get().byPreferredEmail(preferredEmail);
     assertThat(matchedAccountStates).hasSize(1);
-    assertThat(matchedAccountStates.get(0).getAccount().getId()).isEqualTo(accountId);
+    assertThat(matchedAccountStates.get(0).getAccount().id()).isEqualTo(accountId);
   }
 
   @Test
@@ -82,7 +82,7 @@
     List<AccountState> matchedAccountStates =
         accountQueryProvider.get().byPreferredEmail(preferredEmail);
     assertThat(matchedAccountStates).hasSize(1);
-    assertThat(matchedAccountStates.get(0).getAccount().getId()).isEqualTo(accountId);
+    assertThat(matchedAccountStates.get(0).getAccount().id()).isEqualTo(accountId);
   }
 
   @Test
@@ -91,10 +91,10 @@
     loadAccountToCache(accountId);
     String status = "ooo";
     updateAccountWithoutCacheOrIndex(accountId, newAccountUpdate().setStatus(status).build());
-    assertThat(accountCache.get(accountId).get().getAccount().getStatus()).isNull();
+    assertThat(accountCache.get(accountId).get().getAccount().status()).isNull();
 
     accountIndexer.index(accountId);
-    assertThat(accountCache.get(accountId).get().getAccount().getStatus()).isEqualTo(status);
+    assertThat(accountCache.get(accountId).get().getAccount().status()).isEqualTo(status);
   }
 
   @Test
@@ -109,7 +109,7 @@
     List<AccountState> matchedAccountStates =
         accountQueryProvider.get().byPreferredEmail(preferredEmail);
     assertThat(matchedAccountStates).hasSize(1);
-    assertThat(matchedAccountStates.get(0).getAccount().getId()).isEqualTo(accountId);
+    assertThat(matchedAccountStates.get(0).getAccount().id()).isEqualTo(accountId);
   }
 
   @Test
diff --git a/javatests/com/google/gerrit/acceptance/api/accounts/AccountManagerIT.java b/javatests/com/google/gerrit/acceptance/api/accounts/AccountManagerIT.java
index 8730486..c48ee9d 100644
--- a/javatests/com/google/gerrit/acceptance/api/accounts/AccountManagerIT.java
+++ b/javatests/com/google/gerrit/acceptance/api/accounts/AccountManagerIT.java
@@ -192,7 +192,7 @@
 
     Optional<AccountState> accountState = accounts.get(accountId);
     assertThat(accountState).isPresent();
-    assertThat(accountState.get().getAccount().getPreferredEmail()).isEqualTo(newEmail);
+    assertThat(accountState.get().getAccount().preferredEmail()).isEqualTo(newEmail);
   }
 
   @Test
@@ -217,7 +217,7 @@
 
     Optional<AccountState> accountState = accounts.get(accountId);
     assertThat(accountState).isPresent();
-    assertThat(accountState.get().getAccount().getFullName()).isEqualTo(newName);
+    assertThat(accountState.get().getAccount().fullName()).isEqualTo(newName);
   }
 
   @Test
@@ -433,7 +433,7 @@
     // Verify that the preferred email was not updated.
     Optional<AccountState> accountState = accounts.get(accountId);
     assertThat(accountState).isPresent();
-    assertThat(accountState.get().getAccount().getPreferredEmail()).isEqualTo(email);
+    assertThat(accountState.get().getAccount().preferredEmail()).isEqualTo(email);
   }
 
   @Test
diff --git a/javatests/com/google/gerrit/acceptance/rest/account/GetAccountDetailIT.java b/javatests/com/google/gerrit/acceptance/rest/account/GetAccountDetailIT.java
index 27ae8b12..0751a8b 100644
--- a/javatests/com/google/gerrit/acceptance/rest/account/GetAccountDetailIT.java
+++ b/javatests/com/google/gerrit/acceptance/rest/account/GetAccountDetailIT.java
@@ -30,6 +30,6 @@
     AccountDetailInfo info = newGson().fromJson(r.getReader(), AccountDetailInfo.class);
     assertAccountInfo(admin, info);
     Account account = getAccount(admin.id());
-    assertThat(info.registeredOn).isEqualTo(account.getRegisteredOn());
+    assertThat(info.registeredOn).isEqualTo(account.registeredOn());
   }
 }
diff --git a/javatests/com/google/gerrit/acceptance/server/account/AccountResolverIT.java b/javatests/com/google/gerrit/acceptance/server/account/AccountResolverIT.java
index 4aebbad..7627e65 100644
--- a/javatests/com/google/gerrit/acceptance/server/account/AccountResolverIT.java
+++ b/javatests/com/google/gerrit/acceptance/server/account/AccountResolverIT.java
@@ -340,6 +340,6 @@
         accountsUpdateProvider
             .get()
             .update("Force set preferred email", id, (s, u) -> u.setPreferredEmail(email));
-    assertThat(result.map(a -> a.getAccount().getPreferredEmail())).hasValue(email);
+    assertThat(result.map(a -> a.getAccount().preferredEmail())).hasValue(email);
   }
 }
diff --git a/javatests/com/google/gerrit/server/IdentifiedUserTest.java b/javatests/com/google/gerrit/server/IdentifiedUserTest.java
index d6fb5d9..eaddbff 100644
--- a/javatests/com/google/gerrit/server/IdentifiedUserTest.java
+++ b/javatests/com/google/gerrit/server/IdentifiedUserTest.java
@@ -98,8 +98,11 @@
     Injector injector = Guice.createInjector(mod);
     injector.injectMembers(this);
 
-    Account account = new Account(Account.id(1), TimeUtil.nowTs());
-    Account.Id ownerId = account.getId();
+    Account account =
+        Account.builder(Account.id(1), TimeUtil.nowTs())
+            .setMetaId("1234567812345678123456781234567812345678")
+            .build();
+    Account.Id ownerId = account.id();
 
     identifiedUser = identifiedUserFactory.create(ownerId);
 
diff --git a/javatests/com/google/gerrit/server/account/AccountResolverTest.java b/javatests/com/google/gerrit/server/account/AccountResolverTest.java
index 5470e3c..14e6876 100644
--- a/javatests/com/google/gerrit/server/account/AccountResolverTest.java
+++ b/javatests/com/google/gerrit/server/account/AccountResolverTest.java
@@ -84,7 +84,7 @@
     @Override
     public String toString() {
       return accounts.stream()
-          .map(a -> a.getAccount().getId().toString())
+          .map(a -> a.getAccount().id().toString())
           .collect(joining(",", pattern + "(", ")"));
     }
   }
@@ -238,8 +238,8 @@
     AccountState account = newAccount(1);
     ImmutableList<Searcher<?>> searchers =
         ImmutableList.of(new TestSearcher("foo", false, account));
-    assertThat(search("foo", searchers, allVisible()).asUnique().getAccount().getId())
-        .isEqualTo(account.getAccount().getId());
+    assertThat(search("foo", searchers, allVisible()).asUnique().getAccount().id())
+        .isEqualTo(account.getAccount().id());
   }
 
   @Test
@@ -328,13 +328,16 @@
   }
 
   private AccountState newAccount(int id) {
-    return AccountState.forAccount(new Account(Account.id(id), TimeUtil.nowTs()));
+    return AccountState.forAccount(
+        Account.builder(Account.id(id), TimeUtil.nowTs())
+            .setMetaId("1234567812345678123456781234567812345678")
+            .build());
   }
 
   private AccountState newInactiveAccount(int id) {
-    Account a = new Account(Account.id(id), TimeUtil.nowTs());
+    Account.Builder a = Account.builder(Account.id(id), TimeUtil.nowTs());
     a.setActive(false);
-    return AccountState.forAccount(a);
+    return AccountState.forAccount(a.build());
   }
 
   private static ImmutableSet<Account.Id> ids(int... ids) {
@@ -348,12 +351,12 @@
   private static Supplier<Predicate<AccountState>> only(int... ids) {
     ImmutableSet<Account.Id> idSet =
         Arrays.stream(ids).mapToObj(Account::id).collect(toImmutableSet());
-    return () -> a -> idSet.contains(a.getAccount().getId());
+    return () -> a -> idSet.contains(a.getAccount().id());
   }
 
   private static ImmutableSet<Account.Id> filteredInactiveIds(Result result) {
     return result.filteredInactive().stream()
-        .map(a -> a.getAccount().getId())
+        .map(a -> a.getAccount().id())
         .collect(toImmutableSet());
   }
 }
diff --git a/javatests/com/google/gerrit/server/group/db/AbstractGroupTest.java b/javatests/com/google/gerrit/server/group/db/AbstractGroupTest.java
index 2acc7dcf..c605e86 100644
--- a/javatests/com/google/gerrit/server/group/db/AbstractGroupTest.java
+++ b/javatests/com/google/gerrit/server/group/db/AbstractGroupTest.java
@@ -123,9 +123,9 @@
   }
 
   private static Optional<Account> getAccount(Account.Id id) {
-    Account account = new Account(id, TimeUtil.nowTs());
+    Account.Builder account = Account.builder(id, TimeUtil.nowTs());
     account.setFullName("Account " + id);
-    return Optional.of(account);
+    return Optional.of(account.build());
   }
 
   private Optional<GroupDescription.Basic> getGroup(AccountGroup.UUID uuid) {
diff --git a/javatests/com/google/gerrit/server/group/db/GroupConfigTest.java b/javatests/com/google/gerrit/server/group/db/GroupConfigTest.java
index 1d75229..d092eed 100644
--- a/javatests/com/google/gerrit/server/group/db/GroupConfigTest.java
+++ b/javatests/com/google/gerrit/server/group/db/GroupConfigTest.java
@@ -1275,7 +1275,7 @@
         getPrefilledGroupCreationBuilder().setGroupUUID(groupUuid).build();
     InternalGroupUpdate groupUpdate =
         InternalGroupUpdate.builder()
-            .setMemberModification(members -> ImmutableSet.of(account13.getId(), account7.getId()))
+            .setMemberModification(members -> ImmutableSet.of(account13.id(), account7.id()))
             .build();
 
     GroupConfig groupConfig = GroupConfig.createForNewGroup(projectName, repository, groupCreation);
@@ -1325,7 +1325,7 @@
 
     InternalGroupUpdate groupUpdate =
         InternalGroupUpdate.builder()
-            .setMemberModification(members -> ImmutableSet.of(account13.getId(), account7.getId()))
+            .setMemberModification(members -> ImmutableSet.of(account13.id(), account7.id()))
             .build();
     updateGroup(groupUuid, groupUpdate, auditLogFormatter);
 
@@ -1347,13 +1347,13 @@
 
     InternalGroupUpdate groupUpdate1 =
         InternalGroupUpdate.builder()
-            .setMemberModification(members -> ImmutableSet.of(account13.getId(), account7.getId()))
+            .setMemberModification(members -> ImmutableSet.of(account13.id(), account7.id()))
             .build();
     updateGroup(groupUuid, groupUpdate1, auditLogFormatter);
 
     InternalGroupUpdate groupUpdate2 =
         InternalGroupUpdate.builder()
-            .setMemberModification(members -> ImmutableSet.of(account7.getId()))
+            .setMemberModification(members -> ImmutableSet.of(account7.id()))
             .build();
     updateGroup(groupUuid, groupUpdate2, auditLogFormatter);
 
@@ -1447,7 +1447,7 @@
     InternalGroupUpdate groupUpdate1 =
         InternalGroupUpdate.builder()
             .setName(AccountGroup.nameKey("Old name"))
-            .setMemberModification(members -> ImmutableSet.of(account7.getId()))
+            .setMemberModification(members -> ImmutableSet.of(account7.id()))
             .setSubgroupModification(subgroups -> ImmutableSet.of(group2.getGroupUUID()))
             .build();
     updateGroup(groupUuid, groupUpdate1, auditLogFormatter);
@@ -1455,7 +1455,7 @@
     InternalGroupUpdate groupUpdate2 =
         InternalGroupUpdate.builder()
             .setName(AccountGroup.nameKey("New name"))
-            .setMemberModification(members -> ImmutableSet.of(account13.getId()))
+            .setMemberModification(members -> ImmutableSet.of(account13.id()))
             .setSubgroupModification(subgroups -> ImmutableSet.of(group1.getGroupUUID()))
             .build();
     updateGroup(groupUuid, groupUpdate2, auditLogFormatter);
@@ -1581,9 +1581,9 @@
   }
 
   private static Account createAccount(Account.Id id, String name) {
-    Account account = new Account(id, TimeUtil.nowTs());
+    Account.Builder account = Account.builder(id, TimeUtil.nowTs());
     account.setFullName(name);
-    return account;
+    return account.build();
   }
 
   private static GroupDescription.Basic createGroup(AccountGroup.UUID uuid, String name) {
diff --git a/javatests/com/google/gerrit/server/index/account/AccountFieldTest.java b/javatests/com/google/gerrit/server/index/account/AccountFieldTest.java
index 0f73cc5..e4f8078 100644
--- a/javatests/com/google/gerrit/server/index/account/AccountFieldTest.java
+++ b/javatests/com/google/gerrit/server/index/account/AccountFieldTest.java
@@ -36,20 +36,24 @@
   @Test
   public void refStateFieldValues() throws Exception {
     AllUsersName allUsersName = new AllUsersName(AllUsersNameProvider.DEFAULT);
-    Account account = new Account(Account.id(1), TimeUtil.nowTs());
+    Account.Builder account = Account.builder(Account.id(1), TimeUtil.nowTs());
     String metaId = "0e39795bb25dc914118224995c53c5c36923a461";
     account.setMetaId(metaId);
-    List<String> values = toStrings(AccountField.REF_STATE.get(AccountState.forAccount(account)));
+    List<String> values =
+        toStrings(AccountField.REF_STATE.get(AccountState.forAccount(account.build())));
     assertThat(values).hasSize(1);
     String expectedValue =
-        allUsersName.get() + ":" + RefNames.refsUsers(account.getId()) + ":" + metaId;
+        allUsersName.get() + ":" + RefNames.refsUsers(account.id()) + ":" + metaId;
     assertThat(Iterables.getOnlyElement(values)).isEqualTo(expectedValue);
   }
 
   @Test
   public void externalIdStateFieldValues() throws Exception {
     Account.Id id = Account.id(1);
-    Account account = new Account(id, TimeUtil.nowTs());
+    Account account =
+        Account.builder(id, TimeUtil.nowTs())
+            .setMetaId("1234567812345678123456781234567812345678")
+            .build();
     ExternalId extId1 =
         ExternalId.create(
             ExternalId.Key.create(ExternalId.SCHEME_MAILTO, "foo.bar@example.com"),
diff --git a/javatests/com/google/gerrit/server/mail/send/FromAddressGeneratorProviderTest.java b/javatests/com/google/gerrit/server/mail/send/FromAddressGeneratorProviderTest.java
index 0e04739..ff114fa7 100644
--- a/javatests/com/google/gerrit/server/mail/send/FromAddressGeneratorProviderTest.java
+++ b/javatests/com/google/gerrit/server/mail/send/FromAddressGeneratorProviderTest.java
@@ -367,20 +367,20 @@
 
   private Account.Id user(String name, String email) {
     final AccountState s = makeUser(name, email);
-    expect(accountCache.get(eq(s.getAccount().getId()))).andReturn(Optional.of(s));
-    return s.getAccount().getId();
+    expect(accountCache.get(eq(s.getAccount().id()))).andReturn(Optional.of(s));
+    return s.getAccount().id();
   }
 
   private Account.Id userNoLookup(String name, String email) {
     final AccountState s = makeUser(name, email);
-    return s.getAccount().getId();
+    return s.getAccount().id();
   }
 
   private AccountState makeUser(String name, String email) {
     final Account.Id userId = Account.id(42);
-    final Account account = new Account(userId, TimeUtil.nowTs());
+    final Account.Builder account = Account.builder(userId, TimeUtil.nowTs());
     account.setFullName(name);
     account.setPreferredEmail(email);
-    return AccountState.forAccount(account);
+    return AccountState.forAccount(account.build());
   }
 }
diff --git a/javatests/com/google/gerrit/server/notedb/AbstractChangeNotesTest.java b/javatests/com/google/gerrit/server/notedb/AbstractChangeNotesTest.java
index 032b141..58697ad 100644
--- a/javatests/com/google/gerrit/server/notedb/AbstractChangeNotesTest.java
+++ b/javatests/com/google/gerrit/server/notedb/AbstractChangeNotesTest.java
@@ -120,14 +120,14 @@
     tr = new TestRepository<>(repo);
     rw = tr.getRevWalk();
     accountCache = new FakeAccountCache();
-    Account co = new Account(Account.id(1), TimeUtil.nowTs());
+    Account.Builder co = Account.builder(Account.id(1), TimeUtil.nowTs());
     co.setFullName("Change Owner");
     co.setPreferredEmail("change@owner.com");
-    accountCache.put(co);
-    Account ou = new Account(Account.id(2), TimeUtil.nowTs());
+    accountCache.put(co.build());
+    Account.Builder ou = Account.builder(Account.id(2), TimeUtil.nowTs());
     ou.setFullName("Other Account");
     ou.setPreferredEmail("other@account.com");
-    accountCache.put(ou);
+    accountCache.put(ou.build());
     assertableFanOutExecutor = new AssertableExecutorService();
 
     injector =
@@ -169,8 +169,8 @@
 
     injector.injectMembers(this);
     repoManager.createRepository(allUsers);
-    changeOwner = userFactory.create(co.getId());
-    otherUser = userFactory.create(ou.getId());
+    changeOwner = userFactory.create(co.id());
+    otherUser = userFactory.create(ou.id());
     otherUserId = otherUser.getAccountId();
     internalUser = new InternalUser();
   }
diff --git a/javatests/com/google/gerrit/server/notedb/ChangeNotesTest.java b/javatests/com/google/gerrit/server/notedb/ChangeNotesTest.java
index 1e970a1..de1e4e7 100644
--- a/javatests/com/google/gerrit/server/notedb/ChangeNotesTest.java
+++ b/javatests/com/google/gerrit/server/notedb/ChangeNotesTest.java
@@ -515,8 +515,8 @@
   public void multipleReviewers() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
-    update.putReviewer(changeOwner.getAccount().getId(), REVIEWER);
-    update.putReviewer(otherUser.getAccount().getId(), REVIEWER);
+    update.putReviewer(changeOwner.getAccount().id(), REVIEWER);
+    update.putReviewer(otherUser.getAccount().id(), REVIEWER);
     update.commit();
 
     ChangeNotes notes = newNotes(c);
@@ -534,8 +534,8 @@
   public void reviewerTypes() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
-    update.putReviewer(changeOwner.getAccount().getId(), REVIEWER);
-    update.putReviewer(otherUser.getAccount().getId(), CC);
+    update.putReviewer(changeOwner.getAccount().id(), REVIEWER);
+    update.putReviewer(otherUser.getAccount().id(), CC);
     update.commit();
 
     ChangeNotes notes = newNotes(c);
@@ -553,7 +553,7 @@
   public void oneReviewerMultipleTypes() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
-    update.putReviewer(otherUser.getAccount().getId(), REVIEWER);
+    update.putReviewer(otherUser.getAccount().id(), REVIEWER);
     update.commit();
 
     ChangeNotes notes = newNotes(c);
@@ -562,7 +562,7 @@
         .isEqualTo(ReviewerSet.fromTable(ImmutableTable.of(REVIEWER, Account.id(2), ts)));
 
     update = newUpdate(c, otherUser);
-    update.putReviewer(otherUser.getAccount().getId(), CC);
+    update.putReviewer(otherUser.getAccount().id(), CC);
     update.commit();
 
     notes = newNotes(c);
@@ -575,7 +575,7 @@
   public void removeReviewer() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
-    update.putReviewer(otherUser.getAccount().getId(), REVIEWER);
+    update.putReviewer(otherUser.getAccount().id(), REVIEWER);
     update.commit();
 
     update = newUpdate(c, changeOwner);
@@ -589,17 +589,17 @@
     ChangeNotes notes = newNotes(c);
     List<PatchSetApproval> psas = notes.getApprovals().get(c.currentPatchSetId());
     assertThat(psas).hasSize(2);
-    assertThat(psas.get(0).accountId()).isEqualTo(changeOwner.getAccount().getId());
-    assertThat(psas.get(1).accountId()).isEqualTo(otherUser.getAccount().getId());
+    assertThat(psas.get(0).accountId()).isEqualTo(changeOwner.getAccount().id());
+    assertThat(psas.get(1).accountId()).isEqualTo(otherUser.getAccount().id());
 
     update = newUpdate(c, changeOwner);
-    update.removeReviewer(otherUser.getAccount().getId());
+    update.removeReviewer(otherUser.getAccount().id());
     update.commit();
 
     notes = newNotes(c);
     psas = notes.getApprovals().get(c.currentPatchSetId());
     assertThat(psas).hasSize(1);
-    assertThat(psas.get(0).accountId()).isEqualTo(changeOwner.getAccount().getId());
+    assertThat(psas.get(0).accountId()).isEqualTo(changeOwner.getAccount().id());
   }
 
   @Test
@@ -1211,11 +1211,11 @@
     List<PatchSetApproval> psas = notes.getApprovals().get(c.currentPatchSetId());
     assertThat(psas).hasSize(2);
 
-    assertThat(psas.get(0).accountId()).isEqualTo(changeOwner.getAccount().getId());
+    assertThat(psas.get(0).accountId()).isEqualTo(changeOwner.getAccount().id());
     assertThat(psas.get(0).label()).isEqualTo("Verified");
     assertThat(psas.get(0).value()).isEqualTo((short) 1);
 
-    assertThat(psas.get(1).accountId()).isEqualTo(otherUser.getAccount().getId());
+    assertThat(psas.get(1).accountId()).isEqualTo(otherUser.getAccount().id());
     assertThat(psas.get(1).label()).isEqualTo("Code-Review");
     assertThat(psas.get(1).value()).isEqualTo((short) 2);
   }
@@ -1336,14 +1336,14 @@
   public void changeMessageOnePatchSet() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
-    update.putReviewer(changeOwner.getAccount().getId(), REVIEWER);
+    update.putReviewer(changeOwner.getAccount().id(), REVIEWER);
     update.setChangeMessage("Just a little code change.\n");
     update.commit();
 
     ChangeNotes notes = newNotes(c);
     ChangeMessage cm = Iterables.getOnlyElement(notes.getChangeMessages());
     assertThat(cm.getMessage()).isEqualTo("Just a little code change.\n");
-    assertThat(cm.getAuthor()).isEqualTo(changeOwner.getAccount().getId());
+    assertThat(cm.getAuthor()).isEqualTo(changeOwner.getAccount().id());
     assertThat(cm.getPatchSetId()).isEqualTo(c.currentPatchSetId());
   }
 
@@ -1351,7 +1351,7 @@
   public void noChangeMessage() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
-    update.putReviewer(changeOwner.getAccount().getId(), REVIEWER);
+    update.putReviewer(changeOwner.getAccount().id(), REVIEWER);
     update.commit();
 
     ChangeNotes notes = newNotes(c);
@@ -1368,7 +1368,7 @@
     ChangeNotes notes = newNotes(c);
     ChangeMessage cm1 = Iterables.getOnlyElement(notes.getChangeMessages());
     assertThat(cm1.getMessage()).isEqualTo("Testing trailing double newline\n\n");
-    assertThat(cm1.getAuthor()).isEqualTo(changeOwner.getAccount().getId());
+    assertThat(cm1.getAuthor()).isEqualTo(changeOwner.getAccount().id());
   }
 
   @Test
@@ -1387,14 +1387,14 @@
                 + "Testing paragraph 2\n"
                 + "\n"
                 + "Testing paragraph 3");
-    assertThat(cm1.getAuthor()).isEqualTo(changeOwner.getAccount().getId());
+    assertThat(cm1.getAuthor()).isEqualTo(changeOwner.getAccount().id());
   }
 
   @Test
   public void changeMessagesMultiplePatchSets() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
-    update.putReviewer(changeOwner.getAccount().getId(), REVIEWER);
+    update.putReviewer(changeOwner.getAccount().id(), REVIEWER);
     update.setChangeMessage("This is the change message for the first PS.");
     update.commit();
     PatchSet.Id ps1 = c.currentPatchSetId();
@@ -1412,12 +1412,12 @@
     ChangeMessage cm1 = notes.getChangeMessages().get(0);
     assertThat(cm1.getPatchSetId()).isEqualTo(ps1);
     assertThat(cm1.getMessage()).isEqualTo("This is the change message for the first PS.");
-    assertThat(cm1.getAuthor()).isEqualTo(changeOwner.getAccount().getId());
+    assertThat(cm1.getAuthor()).isEqualTo(changeOwner.getAccount().id());
 
     ChangeMessage cm2 = notes.getChangeMessages().get(1);
     assertThat(cm2.getPatchSetId()).isEqualTo(ps2);
     assertThat(cm2.getMessage()).isEqualTo("This is the change message for the second PS.");
-    assertThat(cm2.getAuthor()).isEqualTo(changeOwner.getAccount().getId());
+    assertThat(cm2.getAuthor()).isEqualTo(changeOwner.getAccount().id());
     assertThat(cm2.getPatchSetId()).isEqualTo(ps2);
   }
 
@@ -1425,14 +1425,14 @@
   public void changeMessageMultipleInOnePatchSet() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
-    update.putReviewer(changeOwner.getAccount().getId(), REVIEWER);
+    update.putReviewer(changeOwner.getAccount().id(), REVIEWER);
     update.setChangeMessage("First change message.\n");
     update.commit();
 
     PatchSet.Id ps1 = c.currentPatchSetId();
 
     update = newUpdate(c, changeOwner);
-    update.putReviewer(changeOwner.getAccount().getId(), REVIEWER);
+    update.putReviewer(changeOwner.getAccount().id(), REVIEWER);
     update.setChangeMessage("Second change message.\n");
     update.commit();
 
@@ -1441,10 +1441,10 @@
     List<ChangeMessage> cm = notes.getChangeMessages();
     assertThat(cm).hasSize(2);
     assertThat(cm.get(0).getMessage()).isEqualTo("First change message.\n");
-    assertThat(cm.get(0).getAuthor()).isEqualTo(changeOwner.getAccount().getId());
+    assertThat(cm.get(0).getAuthor()).isEqualTo(changeOwner.getAccount().id());
     assertThat(cm.get(0).getPatchSetId()).isEqualTo(ps1);
     assertThat(cm.get(1).getMessage()).isEqualTo("Second change message.\n");
-    assertThat(cm.get(1).getAuthor()).isEqualTo(changeOwner.getAccount().getId());
+    assertThat(cm.get(1).getAuthor()).isEqualTo(changeOwner.getAccount().id());
     assertThat(cm.get(1).getPatchSetId()).isEqualTo(ps1);
   }
 
@@ -1681,11 +1681,11 @@
 
   @Test
   public void patchLineCommentNotesFormatWeirdUser() throws Exception {
-    Account account = new Account(Account.id(3), TimeUtil.nowTs());
+    Account.Builder account = Account.builder(Account.id(3), TimeUtil.nowTs());
     account.setFullName("Weird\n\u0002<User>\n");
     account.setPreferredEmail(" we\r\nird@ex>ample<.com");
-    accountCache.put(account);
-    IdentifiedUser user = userFactory.create(account.getId());
+    accountCache.put(account.build());
+    IdentifiedUser user = userFactory.create(Account.id(3));
 
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, user);
@@ -2936,8 +2936,8 @@
   public void pendingReviewers() throws Exception {
     Address adr1 = new Address("Foo Bar1", "foo.bar1@gerritcodereview.com");
     Address adr2 = new Address("Foo Bar2", "foo.bar2@gerritcodereview.com");
-    Account.Id ownerId = changeOwner.getAccount().getId();
-    Account.Id otherUserId = otherUser.getAccount().getId();
+    Account.Id ownerId = changeOwner.getAccount().id();
+    Account.Id otherUserId = otherUser.getAccount().id();
 
     ChangeNotes notes = newNotes(newChange());
     assertThat(notes.getPendingReviewers().asTable()).isEmpty();
diff --git a/javatests/com/google/gerrit/server/notedb/CommitMessageOutputTest.java b/javatests/com/google/gerrit/server/notedb/CommitMessageOutputTest.java
index 24d098e..eb8d4c2 100644
--- a/javatests/com/google/gerrit/server/notedb/CommitMessageOutputTest.java
+++ b/javatests/com/google/gerrit/server/notedb/CommitMessageOutputTest.java
@@ -44,8 +44,8 @@
     ChangeUpdate update = newUpdateForNewChange(c, changeOwner);
     update.putApproval("Verified", (short) 1);
     update.putApproval("Code-Review", (short) -1);
-    update.putReviewer(changeOwner.getAccount().getId(), REVIEWER);
-    update.putReviewer(otherUser.getAccount().getId(), CC);
+    update.putReviewer(changeOwner.getAccount().id(), REVIEWER);
+    update.putReviewer(otherUser.getAccount().id(), CC);
     update.commit();
     assertThat(update.getRefName()).isEqualTo("refs/changes/01/1/meta");
 
@@ -199,10 +199,13 @@
 
   @Test
   public void anonymousUser() throws Exception {
-    Account anon = new Account(Account.id(3), TimeUtil.nowTs());
+    Account anon =
+        Account.builder(Account.id(3), TimeUtil.nowTs())
+            .setMetaId("1234567812345678123456781234567812345678")
+            .build();
     accountCache.put(anon);
     Change c = newChange();
-    ChangeUpdate update = newUpdate(c, userFactory.create(anon.getId()));
+    ChangeUpdate update = newUpdate(c, userFactory.create(anon.id()));
     update.setChangeMessage("Comment on the change.");
     update.commit();
 
@@ -241,7 +244,7 @@
   public void noChangeMessage() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
-    update.putReviewer(changeOwner.getAccount().getId(), REVIEWER);
+    update.putReviewer(changeOwner.getAccount().id(), REVIEWER);
     update.commit();
 
     assertBodyEquals(
diff --git a/javatests/com/google/gerrit/server/query/account/AbstractQueryAccountsTest.java b/javatests/com/google/gerrit/server/query/account/AbstractQueryAccountsTest.java
index 2a7523b..33f47b2 100644
--- a/javatests/com/google/gerrit/server/query/account/AbstractQueryAccountsTest.java
+++ b/javatests/com/google/gerrit/server/query/account/AbstractQueryAccountsTest.java
@@ -816,7 +816,7 @@
   }
 
   protected void assertAccounts(List<AccountState> accounts, AccountInfo... expectedAccounts) {
-    assertThat(accounts.stream().map(a -> a.getAccount().getId().get()).collect(toList()))
+    assertThat(accounts.stream().map(a -> a.getAccount().id().get()).collect(toList()))
         .containsExactlyElementsIn(
             Arrays.asList(expectedAccounts).stream().map(a -> a._accountId).collect(toList()));
   }
diff --git a/plugins/reviewnotes b/plugins/reviewnotes
index 4365294..3667220 160000
--- a/plugins/reviewnotes
+++ b/plugins/reviewnotes
@@ -1 +1 @@
-Subproject commit 436529473abb0f7921a1c2b732577a0a955cddc9
+Subproject commit 3667220b860d444406ca5fa5cc27d87858642596
diff --git a/plugins/singleusergroup b/plugins/singleusergroup
index ce8b761..db53979 160000
--- a/plugins/singleusergroup
+++ b/plugins/singleusergroup
@@ -1 +1 @@
-Subproject commit ce8b76168588c0ee5fbb04bee31ba89088957c86
+Subproject commit db5397931ed05e9aedd385d3ec1511b4a64d3ddc