From 062ce5f81991cbd0103a081815bd67c64ceed452 Mon Sep 17 00:00:00 2001
From: Stefan Strigler <stefan.strigler@emqx.io>
Date: Thu, 13 Apr 2023 15:02:41 +0200
Subject: [PATCH] refactor: rename emqx_map_lib to emqx_utils_maps

---
 apps/emqx/src/emqx.erl                        | 18 +++---
 apps/emqx/src/emqx_config.erl                 | 64 +++++++++----------
 apps/emqx/src/emqx_config_handler.erl         | 18 +++---
 .../emqx_limiter/src/emqx_limiter_server.erl  |  2 +-
 apps/emqx/src/emqx_listeners.erl              |  6 +-
 apps/emqx/src/emqx_ocsp_cache.erl             |  4 +-
 apps/emqx/src/emqx_schema.erl                 |  2 +-
 apps/emqx/src/emqx_tls_lib.erl                | 20 +++---
 apps/emqx/test/emqx_crl_cache_SUITE.erl       |  4 +-
 apps/emqx/test/emqx_ocsp_cache_SUITE.erl      | 22 ++++---
 apps/emqx/test/emqx_tls_lib_tests.erl         |  6 +-
 apps/emqx_authn/src/emqx_authn_api.erl        |  4 +-
 .../emqx_authz/src/emqx_authz_api_sources.erl |  2 +-
 apps/emqx_authz/src/emqx_authz_schema.erl     |  2 +-
 apps/emqx_bridge/src/emqx_bridge.erl          |  4 +-
 apps/emqx_bridge/src/emqx_bridge_api.erl      |  2 +-
 apps/emqx_bridge/src/emqx_bridge_resource.erl |  4 +-
 .../src/schema/emqx_bridge_schema.erl         |  2 +-
 .../test/emqx_bridge_api_SUITE.erl            |  2 +-
 .../test/emqx_bridge_mqtt_SUITE.erl           |  2 +-
 .../emqx_bridge_kafka_impl_consumer_SUITE.erl |  6 +-
 .../test/emqx_bridge_kafka_tests.erl          |  4 +-
 apps/emqx_conf/src/emqx_conf.erl              | 28 ++++----
 .../src/proto/emqx_conf_proto_v1.erl          |  8 +--
 .../src/proto/emqx_conf_proto_v2.erl          |  8 +--
 .../emqx_connector/src/emqx_connector_ssl.erl |  2 +-
 .../src/mqtt/emqx_connector_mqtt_worker.erl   |  2 +-
 .../src/emqx_dashboard_listener.erl           | 11 ++--
 .../src/emqx_dashboard_swagger.erl            |  2 +-
 apps/emqx_exhook/src/emqx_exhook_mgr.erl      |  8 +--
 .../test/emqx_exhook_api_SUITE.erl            |  2 +-
 .../src/emqx_gateway_api_listeners.erl        |  2 +-
 apps/emqx_gateway/src/emqx_gateway_conf.erl   | 60 ++++++++---------
 apps/emqx_gateway/src/emqx_gateway_http.erl   |  4 +-
 .../test/emqx_gateway_api_SUITE.erl           | 12 ++--
 .../test/emqx_gateway_authn_SUITE.erl         |  2 +-
 .../test/emqx_gateway_conf_SUITE.erl          |  6 +-
 .../test/emqx_gateway_test_utils.erl          |  2 +-
 .../src/emqx_gateway_exproto.erl              |  4 +-
 .../src/emqx_mgmt_api_clients.erl             |  6 +-
 .../src/emqx_mgmt_api_configs.erl             |  4 +-
 .../src/emqx_mgmt_api_listeners.erl           |  2 +-
 .../test/emqx_mgmt_api_configs_SUITE.erl      | 38 ++++++-----
 .../test/emqx_mgmt_api_listeners_SUITE.erl    |  6 +-
 .../test/emqx_mgmt_api_nodes_SUITE.erl        |  6 +-
 .../test/emqx_delayed_api_SUITE.erl           |  2 +-
 .../src/emqx_retainer_dispatcher.erl          |  2 +-
 .../test/emqx_retainer_api_SUITE.erl          |  4 +-
 .../emqx_rule_engine/src/emqx_rule_engine.erl |  2 +-
 .../test/emqx_slow_subs_api_SUITE.erl         |  2 +-
 .../src/emqx_utils_maps.erl}                  |  4 +-
 .../test/emqx_utils_maps_tests.erl}           | 32 +++++-----
 .../test/emqx_ee_bridge_cassa_SUITE.erl       |  2 +-
 .../test/emqx_ee_bridge_dynamo_SUITE.erl      |  2 +-
 .../test/emqx_ee_bridge_gcp_pubsub_SUITE.erl  |  4 +-
 .../test/emqx_ee_bridge_influxdb_SUITE.erl    |  4 +-
 .../test/emqx_ee_bridge_mongodb_SUITE.erl     |  2 +-
 .../test/emqx_ee_bridge_pgsql_SUITE.erl       |  2 +-
 .../test/emqx_ee_bridge_tdengine_SUITE.erl    |  2 +-
 .../src/emqx_ee_schema_registry.erl           |  4 +-
 .../test/emqx_ee_schema_registry_SUITE.erl    |  2 +-
 61 files changed, 256 insertions(+), 241 deletions(-)
 rename apps/{emqx/src/emqx_map_lib.erl => emqx_utils/src/emqx_utils_maps.erl} (99%)
 rename apps/{emqx/test/emqx_map_lib_tests.erl => emqx_utils/test/emqx_utils_maps_tests.erl} (76%)

diff --git a/apps/emqx/src/emqx.erl b/apps/emqx/src/emqx.erl
index 6e4aa9922..ef870685a 100644
--- a/apps/emqx/src/emqx.erl
+++ b/apps/emqx/src/emqx.erl
@@ -164,29 +164,29 @@ run_hook(HookPoint, Args) ->
 run_fold_hook(HookPoint, Args, Acc) ->
     emqx_hooks:run_fold(HookPoint, Args, Acc).
 
--spec get_config(emqx_map_lib:config_key_path()) -> term().
+-spec get_config(emqx_utils_maps:config_key_path()) -> term().
 get_config(KeyPath) ->
     emqx_config:get(KeyPath).
 
--spec get_config(emqx_map_lib:config_key_path(), term()) -> term().
+-spec get_config(emqx_utils_maps:config_key_path(), term()) -> term().
 get_config(KeyPath, Default) ->
     emqx_config:get(KeyPath, Default).
 
--spec get_raw_config(emqx_map_lib:config_key_path()) -> term().
+-spec get_raw_config(emqx_utils_maps:config_key_path()) -> term().
 get_raw_config(KeyPath) ->
     emqx_config:get_raw(KeyPath).
 
--spec get_raw_config(emqx_map_lib:config_key_path(), term()) -> term().
+-spec get_raw_config(emqx_utils_maps:config_key_path(), term()) -> term().
 get_raw_config(KeyPath, Default) ->
     emqx_config:get_raw(KeyPath, Default).
 
--spec update_config(emqx_map_lib:config_key_path(), emqx_config:update_request()) ->
+-spec update_config(emqx_utils_maps:config_key_path(), emqx_config:update_request()) ->
     {ok, emqx_config:update_result()} | {error, emqx_config:update_error()}.
 update_config(KeyPath, UpdateReq) ->
     update_config(KeyPath, UpdateReq, #{}).
 
 -spec update_config(
-    emqx_map_lib:config_key_path(),
+    emqx_utils_maps:config_key_path(),
     emqx_config:update_request(),
     emqx_config:update_opts()
 ) ->
@@ -198,12 +198,12 @@ update_config([RootName | _] = KeyPath, UpdateReq, Opts) ->
         {{update, UpdateReq}, Opts}
     ).
 
--spec remove_config(emqx_map_lib:config_key_path()) ->
+-spec remove_config(emqx_utils_maps:config_key_path()) ->
     {ok, emqx_config:update_result()} | {error, emqx_config:update_error()}.
 remove_config(KeyPath) ->
     remove_config(KeyPath, #{}).
 
--spec remove_config(emqx_map_lib:config_key_path(), emqx_config:update_opts()) ->
+-spec remove_config(emqx_utils_maps:config_key_path(), emqx_config:update_opts()) ->
     {ok, emqx_config:update_result()} | {error, emqx_config:update_error()}.
 remove_config([RootName | _] = KeyPath, Opts) ->
     emqx_config_handler:update_config(
@@ -212,7 +212,7 @@ remove_config([RootName | _] = KeyPath, Opts) ->
         {remove, Opts}
     ).
 
--spec reset_config(emqx_map_lib:config_key_path(), emqx_config:update_opts()) ->
+-spec reset_config(emqx_utils_maps:config_key_path(), emqx_config:update_opts()) ->
     {ok, emqx_config:update_result()} | {error, emqx_config:update_error()}.
 reset_config([RootName | _] = KeyPath, Opts) ->
     case emqx_config:get_default_value(KeyPath) of
diff --git a/apps/emqx/src/emqx_config.erl b/apps/emqx/src/emqx_config.erl
index bf3134568..b7effa240 100644
--- a/apps/emqx/src/emqx_config.erl
+++ b/apps/emqx/src/emqx_config.erl
@@ -142,7 +142,7 @@
 -type app_envs() :: [proplists:property()].
 
 %% @doc For the given path, get root value enclosed in a single-key map.
--spec get_root(emqx_map_lib:config_key_path()) -> map().
+-spec get_root(emqx_utils_maps:config_key_path()) -> map().
 get_root([RootName | _]) ->
     #{RootName => do_get(?CONF, [RootName], #{})}.
 
@@ -153,14 +153,14 @@ get_root_raw([RootName | _]) ->
 
 %% @doc Get a config value for the given path.
 %% The path should at least include root config name.
--spec get(emqx_map_lib:config_key_path()) -> term().
+-spec get(emqx_utils_maps:config_key_path()) -> term().
 get(KeyPath) -> do_get(?CONF, KeyPath).
 
--spec get(emqx_map_lib:config_key_path(), term()) -> term().
+-spec get(emqx_utils_maps:config_key_path(), term()) -> term().
 get(KeyPath, Default) -> do_get(?CONF, KeyPath, Default).
 
--spec find(emqx_map_lib:config_key_path()) ->
-    {ok, term()} | {not_found, emqx_map_lib:config_key_path(), term()}.
+-spec find(emqx_utils_maps:config_key_path()) ->
+    {ok, term()} | {not_found, emqx_utils_maps:config_key_path(), term()}.
 find([]) ->
     Ref = make_ref(),
     case do_get(?CONF, [], Ref) of
@@ -170,12 +170,12 @@ find([]) ->
 find(KeyPath) ->
     atom_conf_path(
         KeyPath,
-        fun(AtomKeyPath) -> emqx_map_lib:deep_find(AtomKeyPath, get_root(KeyPath)) end,
+        fun(AtomKeyPath) -> emqx_utils_maps:deep_find(AtomKeyPath, get_root(KeyPath)) end,
         {return, {not_found, KeyPath}}
     ).
 
--spec find_raw(emqx_map_lib:config_key_path()) ->
-    {ok, term()} | {not_found, emqx_map_lib:config_key_path(), term()}.
+-spec find_raw(emqx_utils_maps:config_key_path()) ->
+    {ok, term()} | {not_found, emqx_utils_maps:config_key_path(), term()}.
 find_raw([]) ->
     Ref = make_ref(),
     case do_get_raw([], Ref) of
@@ -183,9 +183,9 @@ find_raw([]) ->
         Res -> {ok, Res}
     end;
 find_raw(KeyPath) ->
-    emqx_map_lib:deep_find([bin(Key) || Key <- KeyPath], get_root_raw(KeyPath)).
+    emqx_utils_maps:deep_find([bin(Key) || Key <- KeyPath], get_root_raw(KeyPath)).
 
--spec get_zone_conf(atom(), emqx_map_lib:config_key_path()) -> term().
+-spec get_zone_conf(atom(), emqx_utils_maps:config_key_path()) -> term().
 get_zone_conf(Zone, KeyPath) ->
     case find(?ZONE_CONF_PATH(Zone, KeyPath)) of
         %% not found in zones, try to find the global config
@@ -195,7 +195,7 @@ get_zone_conf(Zone, KeyPath) ->
             Value
     end.
 
--spec get_zone_conf(atom(), emqx_map_lib:config_key_path(), term()) -> term().
+-spec get_zone_conf(atom(), emqx_utils_maps:config_key_path(), term()) -> term().
 get_zone_conf(Zone, KeyPath, Default) ->
     case find(?ZONE_CONF_PATH(Zone, KeyPath)) of
         %% not found in zones, try to find the global config
@@ -205,24 +205,24 @@ get_zone_conf(Zone, KeyPath, Default) ->
             Value
     end.
 
--spec put_zone_conf(atom(), emqx_map_lib:config_key_path(), term()) -> ok.
+-spec put_zone_conf(atom(), emqx_utils_maps:config_key_path(), term()) -> ok.
 put_zone_conf(Zone, KeyPath, Conf) ->
     ?MODULE:put(?ZONE_CONF_PATH(Zone, KeyPath), Conf).
 
--spec get_listener_conf(atom(), atom(), emqx_map_lib:config_key_path()) -> term().
+-spec get_listener_conf(atom(), atom(), emqx_utils_maps:config_key_path()) -> term().
 get_listener_conf(Type, Listener, KeyPath) ->
     ?MODULE:get(?LISTENER_CONF_PATH(Type, Listener, KeyPath)).
 
--spec get_listener_conf(atom(), atom(), emqx_map_lib:config_key_path(), term()) -> term().
+-spec get_listener_conf(atom(), atom(), emqx_utils_maps:config_key_path(), term()) -> term().
 get_listener_conf(Type, Listener, KeyPath, Default) ->
     ?MODULE:get(?LISTENER_CONF_PATH(Type, Listener, KeyPath), Default).
 
--spec put_listener_conf(atom(), atom(), emqx_map_lib:config_key_path(), term()) -> ok.
+-spec put_listener_conf(atom(), atom(), emqx_utils_maps:config_key_path(), term()) -> ok.
 put_listener_conf(Type, Listener, KeyPath, Conf) ->
     ?MODULE:put(?LISTENER_CONF_PATH(Type, Listener, KeyPath), Conf).
 
--spec find_listener_conf(atom(), atom(), emqx_map_lib:config_key_path()) ->
-    {ok, term()} | {not_found, emqx_map_lib:config_key_path(), term()}.
+-spec find_listener_conf(atom(), atom(), emqx_utils_maps:config_key_path()) ->
+    {ok, term()} | {not_found, emqx_utils_maps:config_key_path(), term()}.
 find_listener_conf(Type, Listener, KeyPath) ->
     find(?LISTENER_CONF_PATH(Type, Listener, KeyPath)).
 
@@ -241,20 +241,20 @@ erase(RootName) ->
     persistent_term:erase(?PERSIS_KEY(?RAW_CONF, bin(RootName))),
     ok.
 
--spec put(emqx_map_lib:config_key_path(), term()) -> ok.
+-spec put(emqx_utils_maps:config_key_path(), term()) -> ok.
 put(KeyPath, Config) ->
     Putter = fun(Path, Map, Value) ->
-        emqx_map_lib:deep_put(Path, Map, Value)
+        emqx_utils_maps:deep_put(Path, Map, Value)
     end,
     do_put(?CONF, Putter, KeyPath, Config).
 
 %% Puts value into configuration even if path doesn't exist
 %% For paths of non-existing atoms use force_put(KeyPath, Config, unsafe)
--spec force_put(emqx_map_lib:config_key_path(), term()) -> ok.
+-spec force_put(emqx_utils_maps:config_key_path(), term()) -> ok.
 force_put(KeyPath, Config) ->
     force_put(KeyPath, Config, safe).
 
--spec force_put(emqx_map_lib:config_key_path(), term(), safe | unsafe) -> ok.
+-spec force_put(emqx_utils_maps:config_key_path(), term(), safe | unsafe) -> ok.
 force_put(KeyPath0, Config, Safety) ->
     KeyPath =
         case Safety of
@@ -262,19 +262,19 @@ force_put(KeyPath0, Config, Safety) ->
             unsafe -> [unsafe_atom(Key) || Key <- KeyPath0]
         end,
     Putter = fun(Path, Map, Value) ->
-        emqx_map_lib:deep_force_put(Path, Map, Value)
+        emqx_utils_maps:deep_force_put(Path, Map, Value)
     end,
     do_put(?CONF, Putter, KeyPath, Config).
 
--spec get_default_value(emqx_map_lib:config_key_path()) -> {ok, term()} | {error, term()}.
+-spec get_default_value(emqx_utils_maps:config_key_path()) -> {ok, term()} | {error, term()}.
 get_default_value([RootName | _] = KeyPath) ->
     BinKeyPath = [bin(Key) || Key <- KeyPath],
     case find_raw([RootName]) of
         {ok, RawConf} ->
-            RawConf1 = emqx_map_lib:deep_remove(BinKeyPath, #{bin(RootName) => RawConf}),
+            RawConf1 = emqx_utils_maps:deep_remove(BinKeyPath, #{bin(RootName) => RawConf}),
             try fill_defaults(get_schema_mod(RootName), RawConf1, #{}) of
                 FullConf ->
-                    case emqx_map_lib:deep_find(BinKeyPath, FullConf) of
+                    case emqx_utils_maps:deep_find(BinKeyPath, FullConf) of
                         {not_found, _, _} -> {error, no_default_value};
                         {ok, Val} -> {ok, Val}
                     end
@@ -285,10 +285,10 @@ get_default_value([RootName | _] = KeyPath) ->
             {error, {rootname_not_found, RootName}}
     end.
 
--spec get_raw(emqx_map_lib:config_key_path()) -> term().
+-spec get_raw(emqx_utils_maps:config_key_path()) -> term().
 get_raw(KeyPath) -> do_get_raw(KeyPath).
 
--spec get_raw(emqx_map_lib:config_key_path(), term()) -> term().
+-spec get_raw(emqx_utils_maps:config_key_path(), term()) -> term().
 get_raw(KeyPath, Default) -> do_get_raw(KeyPath, Default).
 
 -spec put_raw(map()) -> ok.
@@ -301,10 +301,10 @@ put_raw(Config) ->
         hocon_maps:ensure_plain(Config)
     ).
 
--spec put_raw(emqx_map_lib:config_key_path(), term()) -> ok.
+-spec put_raw(emqx_utils_maps:config_key_path(), term()) -> ok.
 put_raw(KeyPath, Config) ->
     Putter = fun(Path, Map, Value) ->
-        emqx_map_lib:deep_force_put(Path, Map, Value)
+        emqx_utils_maps:deep_force_put(Path, Map, Value)
     end,
     do_put(?RAW_CONF, Putter, KeyPath, Config).
 
@@ -430,7 +430,7 @@ do_check_config(SchemaMod, RawConf, Opts0) ->
     Opts = maps:merge(Opts0, Opts1),
     {AppEnvs, CheckedConf} =
         hocon_tconf:map_translate(SchemaMod, RawConf, Opts),
-    {AppEnvs, emqx_map_lib:unsafe_atom_key_map(CheckedConf)}.
+    {AppEnvs, emqx_utils_maps:unsafe_atom_key_map(CheckedConf)}.
 
 fill_defaults(RawConf) ->
     fill_defaults(RawConf, #{}).
@@ -645,11 +645,11 @@ do_put(Type, Putter, [RootName | KeyPath], DeepValue) ->
 do_deep_get(?CONF, KeyPath, Map, Default) ->
     atom_conf_path(
         KeyPath,
-        fun(AtomKeyPath) -> emqx_map_lib:deep_get(AtomKeyPath, Map, Default) end,
+        fun(AtomKeyPath) -> emqx_utils_maps:deep_get(AtomKeyPath, Map, Default) end,
         {return, Default}
     );
 do_deep_get(?RAW_CONF, KeyPath, Map, Default) ->
-    emqx_map_lib:deep_get([bin(Key) || Key <- KeyPath], Map, Default).
+    emqx_utils_maps:deep_get([bin(Key) || Key <- KeyPath], Map, Default).
 
 do_deep_put(?CONF, Putter, KeyPath, Map, Value) ->
     atom_conf_path(
diff --git a/apps/emqx/src/emqx_config_handler.erl b/apps/emqx/src/emqx_config_handler.erl
index a0a99b62e..b440d2af7 100644
--- a/apps/emqx/src/emqx_config_handler.erl
+++ b/apps/emqx/src/emqx_config_handler.erl
@@ -232,7 +232,7 @@ process_update_request(ConfKeyPath, _Handlers, {remove, Opts}) ->
     BinKeyPath = bin_path(ConfKeyPath),
     case check_permissions(remove, BinKeyPath, OldRawConf, Opts) of
         allow ->
-            NewRawConf = emqx_map_lib:deep_remove(BinKeyPath, OldRawConf),
+            NewRawConf = emqx_utils_maps:deep_remove(BinKeyPath, OldRawConf),
             OverrideConf = remove_from_override_config(BinKeyPath, Opts),
             {ok, NewRawConf, OverrideConf, Opts};
         {deny, Reason} ->
@@ -445,7 +445,7 @@ remove_from_override_config(_BinKeyPath, #{persistent := false}) ->
     undefined;
 remove_from_override_config(BinKeyPath, Opts) ->
     OldConf = emqx_config:read_override_conf(Opts),
-    emqx_map_lib:deep_remove(BinKeyPath, OldConf).
+    emqx_utils_maps:deep_remove(BinKeyPath, OldConf).
 
 %% apply new config on top of override config
 merge_to_override_config(_RawConf, #{persistent := false}) ->
@@ -467,7 +467,7 @@ return_change_result(_ConfKeyPath, {remove, _Opts}) ->
 
 return_rawconf(ConfKeyPath, #{rawconf_with_defaults := true}) ->
     FullRawConf = emqx_config:fill_defaults(emqx_config:get_raw([])),
-    emqx_map_lib:deep_get(bin_path(ConfKeyPath), FullRawConf);
+    emqx_utils_maps:deep_get(bin_path(ConfKeyPath), FullRawConf);
 return_rawconf(ConfKeyPath, _) ->
     emqx_config:get_raw(ConfKeyPath).
 
@@ -485,16 +485,16 @@ atom(Atom) when is_atom(Atom) ->
 
 -dialyzer({nowarn_function, do_remove_handler/2}).
 do_remove_handler(ConfKeyPath, Handlers) ->
-    NewHandlers = emqx_map_lib:deep_remove(ConfKeyPath ++ [?MOD], Handlers),
+    NewHandlers = emqx_utils_maps:deep_remove(ConfKeyPath ++ [?MOD], Handlers),
     remove_empty_leaf(ConfKeyPath, NewHandlers).
 
 remove_empty_leaf([], Handlers) ->
     Handlers;
 remove_empty_leaf(KeyPath, Handlers) ->
-    case emqx_map_lib:deep_find(KeyPath, Handlers) =:= {ok, #{}} of
+    case emqx_utils_maps:deep_find(KeyPath, Handlers) =:= {ok, #{}} of
         %% empty leaf
         true ->
-            Handlers1 = emqx_map_lib:deep_remove(KeyPath, Handlers),
+            Handlers1 = emqx_utils_maps:deep_remove(KeyPath, Handlers),
             SubKeyPath = lists:sublist(KeyPath, length(KeyPath) - 1),
             remove_empty_leaf(SubKeyPath, Handlers1);
         false ->
@@ -511,7 +511,7 @@ assert_callback_function(Mod) ->
     end,
     ok.
 
--spec schema(module(), emqx_map_lib:config_key_path()) -> hocon_schema:schema().
+-spec schema(module(), emqx_utils_maps:config_key_path()) -> hocon_schema:schema().
 schema(SchemaModule, [RootKey | _]) ->
     Roots = hocon_schema:roots(SchemaModule),
     {Field, Translations} =
@@ -550,10 +550,10 @@ save_handlers(Handlers) ->
 check_permissions(_Action, _ConfKeyPath, _NewRawConf, #{override_to := local}) ->
     allow;
 check_permissions(Action, ConfKeyPath, NewRawConf, _Opts) ->
-    case emqx_map_lib:deep_find(ConfKeyPath, NewRawConf) of
+    case emqx_utils_maps:deep_find(ConfKeyPath, NewRawConf) of
         {ok, NewRaw} ->
             LocalOverride = emqx_config:read_override_conf(#{override_to => local}),
-            case emqx_map_lib:deep_find(ConfKeyPath, LocalOverride) of
+            case emqx_utils_maps:deep_find(ConfKeyPath, LocalOverride) of
                 {ok, LocalRaw} ->
                     case is_mutable(Action, NewRaw, LocalRaw) of
                         ok ->
diff --git a/apps/emqx/src/emqx_limiter/src/emqx_limiter_server.erl b/apps/emqx/src/emqx_limiter/src/emqx_limiter_server.erl
index 44663ceeb..f1daeaaeb 100644
--- a/apps/emqx/src/emqx_limiter/src/emqx_limiter_server.erl
+++ b/apps/emqx/src/emqx_limiter/src/emqx_limiter_server.erl
@@ -572,7 +572,7 @@ find_limiter_cfg(Type, #{rate := _} = Cfg) ->
 find_limiter_cfg(Type, Cfg) ->
     {
         maps:get(Type, Cfg, undefined),
-        find_client_cfg(Type, emqx_map_lib:deep_get([client, Type], Cfg, undefined))
+        find_client_cfg(Type, emqx_utils_maps:deep_get([client, Type], Cfg, undefined))
     }.
 
 find_client_cfg(Type, BucketCfg) ->
diff --git a/apps/emqx/src/emqx_listeners.erl b/apps/emqx/src/emqx_listeners.erl
index 96e28b1de..f82aebe7c 100644
--- a/apps/emqx/src/emqx_listeners.erl
+++ b/apps/emqx/src/emqx_listeners.erl
@@ -427,12 +427,12 @@ pre_config_update([listeners, _Type, _Name], {create, _NewConf}, _RawConf) ->
 pre_config_update([listeners, _Type, _Name], {update, _Request}, undefined) ->
     {error, not_found};
 pre_config_update([listeners, Type, Name], {update, Request}, RawConf) ->
-    NewConfT = emqx_map_lib:deep_merge(RawConf, Request),
+    NewConfT = emqx_utils_maps:deep_merge(RawConf, Request),
     NewConf = ensure_override_limiter_conf(NewConfT, Request),
     CertsDir = certs_dir(Type, Name),
     {ok, convert_certs(CertsDir, NewConf)};
 pre_config_update([listeners, _Type, _Name], {action, _Action, Updated}, RawConf) ->
-    NewConf = emqx_map_lib:deep_merge(RawConf, Updated),
+    NewConf = emqx_utils_maps:deep_merge(RawConf, Updated),
     {ok, NewConf};
 pre_config_update(_Path, _Request, RawConf) ->
     {ok, RawConf}.
@@ -500,7 +500,7 @@ esockd_opts(ListenerId, Type, Opts0) ->
 
 ws_opts(Type, ListenerName, Opts) ->
     WsPaths = [
-        {emqx_map_lib:deep_get([websocket, mqtt_path], Opts, "/mqtt"), emqx_ws_connection, #{
+        {emqx_utils_maps:deep_get([websocket, mqtt_path], Opts, "/mqtt"), emqx_ws_connection, #{
             zone => zone(Opts),
             listener => {Type, ListenerName},
             limiter => limiter(Opts),
diff --git a/apps/emqx/src/emqx_ocsp_cache.erl b/apps/emqx/src/emqx_ocsp_cache.erl
index ccf3e0c40..3bb10ee5c 100644
--- a/apps/emqx/src/emqx_ocsp_cache.erl
+++ b/apps/emqx/src/emqx_ocsp_cache.erl
@@ -110,7 +110,7 @@ register_listener(ListenerID, Opts) ->
 -spec inject_sni_fun(emqx_listeners:listener_id(), map()) -> map().
 inject_sni_fun(ListenerID, Conf0) ->
     SNIFun = emqx_const_v1:make_sni_fun(ListenerID),
-    Conf = emqx_map_lib:deep_merge(Conf0, #{ssl_options => #{sni_fun => SNIFun}}),
+    Conf = emqx_utils_maps:deep_merge(Conf0, #{ssl_options => #{sni_fun => SNIFun}}),
     ok = ?MODULE:register_listener(ListenerID, Conf),
     Conf.
 
@@ -149,7 +149,7 @@ handle_call({register_listener, ListenerID, Conf}, _From, State0) ->
         msg => "registering_ocsp_cache",
         listener_id => ListenerID
     }),
-    RefreshInterval0 = emqx_map_lib:deep_get([ssl_options, ocsp, refresh_interval], Conf),
+    RefreshInterval0 = emqx_utils_maps:deep_get([ssl_options, ocsp, refresh_interval], Conf),
     RefreshInterval = max(RefreshInterval0, ?MIN_REFRESH_INTERVAL),
     State = State0#{{refresh_interval, ListenerID} => RefreshInterval},
     %% we need to pass the config along because this might be called
diff --git a/apps/emqx/src/emqx_schema.erl b/apps/emqx/src/emqx_schema.erl
index 96d9aea34..9934e09c9 100644
--- a/apps/emqx/src/emqx_schema.erl
+++ b/apps/emqx/src/emqx_schema.erl
@@ -2348,7 +2348,7 @@ ocsp_outer_validator(_Conf) ->
     ok.
 
 ocsp_inner_validator(#{enable_ocsp_stapling := _} = Conf) ->
-    ocsp_inner_validator(emqx_map_lib:binary_key_map(Conf));
+    ocsp_inner_validator(emqx_utils_maps:binary_key_map(Conf));
 ocsp_inner_validator(#{<<"enable_ocsp_stapling">> := false} = _Conf) ->
     ok;
 ocsp_inner_validator(#{<<"enable_ocsp_stapling">> := true} = Conf) ->
diff --git a/apps/emqx/src/emqx_tls_lib.erl b/apps/emqx/src/emqx_tls_lib.erl
index 47797b326..d1c57bf0d 100644
--- a/apps/emqx/src/emqx_tls_lib.erl
+++ b/apps/emqx/src/emqx_tls_lib.erl
@@ -317,7 +317,9 @@ ensure_ssl_files(Dir, SSL, Opts) ->
 ensure_ssl_files(_Dir, SSL, [], _Opts) ->
     {ok, SSL};
 ensure_ssl_files(Dir, SSL, [KeyPath | KeyPaths], Opts) ->
-    case ensure_ssl_file(Dir, KeyPath, SSL, emqx_map_lib:deep_get(KeyPath, SSL, undefined), Opts) of
+    case
+        ensure_ssl_file(Dir, KeyPath, SSL, emqx_utils_maps:deep_get(KeyPath, SSL, undefined), Opts)
+    of
         {ok, NewSSL} ->
             ensure_ssl_files(Dir, NewSSL, KeyPaths, Opts);
         {error, Reason} ->
@@ -332,7 +334,7 @@ delete_ssl_files(Dir, NewOpts0, OldOpts0) ->
     {ok, OldOpts} = ensure_ssl_files(Dir, OldOpts0, #{dry_run => DryRun}),
     Get = fun
         (_KP, undefined) -> undefined;
-        (KP, Opts) -> emqx_map_lib:deep_get(KP, Opts, undefined)
+        (KP, Opts) -> emqx_utils_maps:deep_get(KP, Opts, undefined)
     end,
     lists:foreach(
         fun(KeyPath) -> delete_old_file(Get(KeyPath, NewOpts), Get(KeyPath, OldOpts)) end,
@@ -372,7 +374,7 @@ do_ensure_ssl_file(Dir, KeyPath, SSL, MaybePem, DryRun) ->
         true ->
             case save_pem_file(Dir, KeyPath, MaybePem, DryRun) of
                 {ok, Path} ->
-                    NewSSL = emqx_map_lib:deep_put(KeyPath, SSL, Path),
+                    NewSSL = emqx_utils_maps:deep_put(KeyPath, SSL, Path),
                     {ok, NewSSL};
                 {error, Reason} ->
                     {error, Reason}
@@ -482,9 +484,9 @@ is_valid_pem_file(Path) ->
 %% so they are forced to upload a cert file, or use an existing file path.
 -spec drop_invalid_certs(map()) -> map().
 drop_invalid_certs(#{enable := False} = SSL) when ?IS_FALSE(False) ->
-    lists:foldl(fun emqx_map_lib:deep_remove/2, SSL, ?SSL_FILE_OPT_PATHS_A);
+    lists:foldl(fun emqx_utils_maps:deep_remove/2, SSL, ?SSL_FILE_OPT_PATHS_A);
 drop_invalid_certs(#{<<"enable">> := False} = SSL) when ?IS_FALSE(False) ->
-    lists:foldl(fun emqx_map_lib:deep_remove/2, SSL, ?SSL_FILE_OPT_PATHS);
+    lists:foldl(fun emqx_utils_maps:deep_remove/2, SSL, ?SSL_FILE_OPT_PATHS);
 drop_invalid_certs(#{enable := True} = SSL) when ?IS_TRUE(True) ->
     do_drop_invalid_certs(?SSL_FILE_OPT_PATHS_A, SSL);
 drop_invalid_certs(#{<<"enable">> := True} = SSL) when ?IS_TRUE(True) ->
@@ -493,7 +495,7 @@ drop_invalid_certs(#{<<"enable">> := True} = SSL) when ?IS_TRUE(True) ->
 do_drop_invalid_certs([], SSL) ->
     SSL;
 do_drop_invalid_certs([KeyPath | KeyPaths], SSL) ->
-    case emqx_map_lib:deep_get(KeyPath, SSL, undefined) of
+    case emqx_utils_maps:deep_get(KeyPath, SSL, undefined) of
         undefined ->
             do_drop_invalid_certs(KeyPaths, SSL);
         PemOrPath ->
@@ -501,7 +503,7 @@ do_drop_invalid_certs([KeyPath | KeyPaths], SSL) ->
                 true ->
                     do_drop_invalid_certs(KeyPaths, SSL);
                 {error, _} ->
-                    do_drop_invalid_certs(KeyPaths, emqx_map_lib:deep_remove(KeyPath, SSL))
+                    do_drop_invalid_certs(KeyPaths, emqx_utils_maps:deep_remove(KeyPath, SSL))
             end
     end.
 
@@ -586,7 +588,9 @@ ensure_ssl_file_key(_SSL, []) ->
     ok;
 ensure_ssl_file_key(SSL, RequiredKeyPaths) ->
     NotFoundRef = make_ref(),
-    Filter = fun(KeyPath) -> NotFoundRef =:= emqx_map_lib:deep_get(KeyPath, SSL, NotFoundRef) end,
+    Filter = fun(KeyPath) ->
+        NotFoundRef =:= emqx_utils_maps:deep_get(KeyPath, SSL, NotFoundRef)
+    end,
     case lists:filter(Filter, RequiredKeyPaths) of
         [] -> ok;
         Miss -> {error, #{reason => ssl_file_option_not_found, which_options => Miss}}
diff --git a/apps/emqx/test/emqx_crl_cache_SUITE.erl b/apps/emqx/test/emqx_crl_cache_SUITE.erl
index 21bfc39df..dd3eb29e7 100644
--- a/apps/emqx/test/emqx_crl_cache_SUITE.erl
+++ b/apps/emqx/test/emqx_crl_cache_SUITE.erl
@@ -997,7 +997,7 @@ do_t_update_listener(Config) ->
                     <<"enable_crl_check">> => true
                 }
         },
-    ListenerData1 = emqx_map_lib:deep_merge(ListenerData0, CRLConfig),
+    ListenerData1 = emqx_utils_maps:deep_merge(ListenerData0, CRLConfig),
     {ok, {_, _, ListenerData2}} = update_listener_via_api(ListenerId, ListenerData1),
     ?assertMatch(
         #{
@@ -1040,7 +1040,7 @@ do_t_validations(_Config) ->
     {ok, {{_, 200, _}, _, ListenerData0}} = get_listener_via_api(ListenerId),
 
     ListenerData1 =
-        emqx_map_lib:deep_merge(
+        emqx_utils_maps:deep_merge(
             ListenerData0,
             #{
                 <<"ssl_options">> =>
diff --git a/apps/emqx/test/emqx_ocsp_cache_SUITE.erl b/apps/emqx/test/emqx_ocsp_cache_SUITE.erl
index a9b80c276..dff8ce5a7 100644
--- a/apps/emqx/test/emqx_ocsp_cache_SUITE.erl
+++ b/apps/emqx/test/emqx_ocsp_cache_SUITE.erl
@@ -143,7 +143,7 @@ init_per_testcase(t_ocsp_responder_error_responses, Config) ->
             }
     },
     Conf = #{listeners => #{Type => #{Name => ListenerOpts}}},
-    ConfBin = emqx_map_lib:binary_key_map(Conf),
+    ConfBin = emqx_utils_maps:binary_key_map(Conf),
     hocon_tconf:check_plain(emqx_schema, ConfBin, #{required => false, atom_keys => false}),
     emqx_config:put_listener_conf(Type, Name, [], ListenerOpts),
     snabbkaffe:start_trace(),
@@ -184,7 +184,7 @@ init_per_testcase(_TestCase, Config) ->
             }
     },
     Conf = #{listeners => #{Type => #{Name => ListenerOpts}}},
-    ConfBin = emqx_map_lib:binary_key_map(Conf),
+    ConfBin = emqx_utils_maps:binary_key_map(Conf),
     hocon_tconf:check_plain(emqx_schema, ConfBin, #{required => false, atom_keys => false}),
     emqx_config:put_listener_conf(Type, Name, [], ListenerOpts),
     snabbkaffe:start_trace(),
@@ -679,7 +679,7 @@ do_t_update_listener(Config) ->
     {ok, {{_, 200, _}, _, ListenerData0}} = get_listener_via_api(ListenerId),
     ?assertEqual(
         undefined,
-        emqx_map_lib:deep_get([<<"ssl_options">>, <<"ocsp">>], ListenerData0, undefined)
+        emqx_utils_maps:deep_get([<<"ssl_options">>, <<"ocsp">>], ListenerData0, undefined)
     ),
     assert_no_http_get(),
 
@@ -702,7 +702,7 @@ do_t_update_listener(Config) ->
                         }
                 }
         },
-    ListenerData1 = emqx_map_lib:deep_merge(ListenerData0, OCSPConfig),
+    ListenerData1 = emqx_utils_maps:deep_merge(ListenerData0, OCSPConfig),
     {ok, {_, _, ListenerData2}} = update_listener_via_api(ListenerId, ListenerData1),
     ?assertMatch(
         #{
@@ -722,14 +722,14 @@ do_t_update_listener(Config) ->
     %% location
     ?assertNotEqual(
         IssuerPemPath,
-        emqx_map_lib:deep_get(
+        emqx_utils_maps:deep_get(
             [<<"ssl_options">>, <<"ocsp">>, <<"issuer_pem">>],
             ListenerData2
         )
     ),
     ?assertNotEqual(
         IssuerPem,
-        emqx_map_lib:deep_get(
+        emqx_utils_maps:deep_get(
             [<<"ssl_options">>, <<"ocsp">>, <<"issuer_pem">>],
             ListenerData2
         )
@@ -818,7 +818,7 @@ do_t_validations(_Config) ->
     {ok, {{_, 200, _}, _, ListenerData0}} = get_listener_via_api(ListenerId),
 
     ListenerData1 =
-        emqx_map_lib:deep_merge(
+        emqx_utils_maps:deep_merge(
             ListenerData0,
             #{
                 <<"ssl_options">> =>
@@ -843,7 +843,7 @@ do_t_validations(_Config) ->
     ),
 
     ListenerData2 =
-        emqx_map_lib:deep_merge(
+        emqx_utils_maps:deep_merge(
             ListenerData0,
             #{
                 <<"ssl_options">> =>
@@ -873,7 +873,7 @@ do_t_validations(_Config) ->
     ),
 
     ListenerData3a =
-        emqx_map_lib:deep_merge(
+        emqx_utils_maps:deep_merge(
             ListenerData0,
             #{
                 <<"ssl_options">> =>
@@ -886,7 +886,9 @@ do_t_validations(_Config) ->
                     }
             }
         ),
-    ListenerData3 = emqx_map_lib:deep_remove([<<"ssl_options">>, <<"certfile">>], ListenerData3a),
+    ListenerData3 = emqx_utils_maps:deep_remove(
+        [<<"ssl_options">>, <<"certfile">>], ListenerData3a
+    ),
     {error, {_, _, ResRaw3}} = update_listener_via_api(ListenerId, ListenerData3),
     #{<<"code">> := <<"BAD_REQUEST">>, <<"message">> := MsgRaw3} =
         emqx_utils_json:decode(ResRaw3, [return_maps]),
diff --git a/apps/emqx/test/emqx_tls_lib_tests.erl b/apps/emqx/test/emqx_tls_lib_tests.erl
index 5510e4027..ad9598107 100644
--- a/apps/emqx/test/emqx_tls_lib_tests.erl
+++ b/apps/emqx/test/emqx_tls_lib_tests.erl
@@ -191,7 +191,7 @@ ssl_files_save_delete_test() ->
     FileKey = maps:get(<<"keyfile">>, SSL),
     ?assertMatch(<<"/tmp/ssl-test-dir/key-", _:16/binary>>, FileKey),
     ?assertEqual({ok, bin(test_key())}, file:read_file(FileKey)),
-    FileIssuerPem = emqx_map_lib:deep_get([<<"ocsp">>, <<"issuer_pem">>], SSL),
+    FileIssuerPem = emqx_utils_maps:deep_get([<<"ocsp">>, <<"issuer_pem">>], SSL),
     ?assertMatch(<<"/tmp/ssl-test-dir/ocsp_issuer_pem-", _:16/binary>>, FileIssuerPem),
     ?assertEqual({ok, bin(test_key())}, file:read_file(FileIssuerPem)),
     %% no old file to delete
@@ -251,8 +251,8 @@ ssl_file_replace_test() ->
     {ok, SSL3} = emqx_tls_lib:ensure_ssl_files(Dir, SSL1),
     File1 = maps:get(<<"keyfile">>, SSL2),
     File2 = maps:get(<<"keyfile">>, SSL3),
-    IssuerPem1 = emqx_map_lib:deep_get([<<"ocsp">>, <<"issuer_pem">>], SSL2),
-    IssuerPem2 = emqx_map_lib:deep_get([<<"ocsp">>, <<"issuer_pem">>], SSL3),
+    IssuerPem1 = emqx_utils_maps:deep_get([<<"ocsp">>, <<"issuer_pem">>], SSL2),
+    IssuerPem2 = emqx_utils_maps:deep_get([<<"ocsp">>, <<"issuer_pem">>], SSL3),
     ?assert(filelib:is_regular(File1)),
     ?assert(filelib:is_regular(File2)),
     ?assert(filelib:is_regular(IssuerPem1)),
diff --git a/apps/emqx_authn/src/emqx_authn_api.erl b/apps/emqx_authn/src/emqx_authn_api.erl
index fc026a671..de856f163 100644
--- a/apps/emqx_authn/src/emqx_authn_api.erl
+++ b/apps/emqx_authn/src/emqx_authn_api.erl
@@ -929,7 +929,7 @@ aggregate_metrics([]) ->
 aggregate_metrics([HeadMetrics | AllMetrics]) ->
     ErrorLogger = fun(Reason) -> ?SLOG(info, #{msg => "bad_metrics_value", error => Reason}) end,
     Fun = fun(ElemMap, AccMap) ->
-        emqx_map_lib:best_effort_recursive_sum(AccMap, ElemMap, ErrorLogger)
+        emqx_utils_maps:best_effort_recursive_sum(AccMap, ElemMap, ErrorLogger)
     end,
     lists:foldl(Fun, HeadMetrics, AllMetrics).
 
@@ -1069,7 +1069,7 @@ update_user(ChainName, AuthenticatorID, UserID, UserInfo0) ->
         true ->
             serialize_error({missing_parameter, password});
         false ->
-            UserInfo = emqx_map_lib:safe_atom_key_map(UserInfo0),
+            UserInfo = emqx_utils_maps:safe_atom_key_map(UserInfo0),
             case emqx_authentication:update_user(ChainName, AuthenticatorID, UserID, UserInfo) of
                 {ok, User} ->
                     {200, User};
diff --git a/apps/emqx_authz/src/emqx_authz_api_sources.erl b/apps/emqx_authz/src/emqx_authz_api_sources.erl
index 0c2dee340..2220e8f6e 100644
--- a/apps/emqx_authz/src/emqx_authz_api_sources.erl
+++ b/apps/emqx_authz/src/emqx_authz_api_sources.erl
@@ -403,7 +403,7 @@ aggregate_metrics([]) ->
 aggregate_metrics([HeadMetrics | AllMetrics]) ->
     ErrorLogger = fun(Reason) -> ?SLOG(info, #{msg => "bad_metrics_value", error => Reason}) end,
     Fun = fun(ElemMap, AccMap) ->
-        emqx_map_lib:best_effort_recursive_sum(AccMap, ElemMap, ErrorLogger)
+        emqx_utils_maps:best_effort_recursive_sum(AccMap, ElemMap, ErrorLogger)
     end,
     lists:foldl(Fun, HeadMetrics, AllMetrics).
 
diff --git a/apps/emqx_authz/src/emqx_authz_schema.erl b/apps/emqx_authz/src/emqx_authz_schema.erl
index 6630ed526..f03ae52a8 100644
--- a/apps/emqx_authz/src/emqx_authz_schema.erl
+++ b/apps/emqx_authz/src/emqx_authz_schema.erl
@@ -337,7 +337,7 @@ check_ssl_opts(Conf) ->
             (#{<<"url">> := Url} = Source) ->
                 case emqx_authz_http:parse_url(Url) of
                     {<<"https", _/binary>>, _, _} ->
-                        case emqx_map_lib:deep_find([<<"ssl">>, <<"enable">>], Source) of
+                        case emqx_utils_maps:deep_find([<<"ssl">>, <<"enable">>], Source) of
                             {ok, true} -> true;
                             {ok, false} -> throw({ssl_not_enable, Url});
                             _ -> throw({ssl_enable_not_found, Url})
diff --git a/apps/emqx_bridge/src/emqx_bridge.erl b/apps/emqx_bridge/src/emqx_bridge.erl
index 087bc6a3f..08b8222f2 100644
--- a/apps/emqx_bridge/src/emqx_bridge.erl
+++ b/apps/emqx_bridge/src/emqx_bridge.erl
@@ -207,7 +207,7 @@ send_message(BridgeId, Message) ->
     end.
 
 query_opts(Config) ->
-    case emqx_map_lib:deep_get([resource_opts, request_timeout], Config, false) of
+    case emqx_utils_maps:deep_get([resource_opts, request_timeout], Config, false) of
         Timeout when is_integer(Timeout) ->
             %% request_timeout is configured
             #{timeout => Timeout};
@@ -367,7 +367,7 @@ perform_bridge_changes([{Action, MapConfs} | Tasks], Result0) ->
     perform_bridge_changes(Tasks, Result).
 
 diff_confs(NewConfs, OldConfs) ->
-    emqx_map_lib:diff_maps(
+    emqx_utils_maps:diff_maps(
         flatten_confs(NewConfs),
         flatten_confs(OldConfs)
     ).
diff --git a/apps/emqx_bridge/src/emqx_bridge_api.erl b/apps/emqx_bridge/src/emqx_bridge_api.erl
index a1841b705..205fcfcf9 100644
--- a/apps/emqx_bridge/src/emqx_bridge_api.erl
+++ b/apps/emqx_bridge/src/emqx_bridge_api.erl
@@ -1029,5 +1029,5 @@ deobfuscate(NewConf, OldConf) ->
 
 map_to_json(M) ->
     emqx_utils_json:encode(
-        emqx_map_lib:jsonable_map(M, fun(K, V) -> {K, emqx_map_lib:binary_string(V)} end)
+        emqx_utils_maps:jsonable_map(M, fun(K, V) -> {K, emqx_utils_maps:binary_string(V)} end)
     ).
diff --git a/apps/emqx_bridge/src/emqx_bridge_resource.erl b/apps/emqx_bridge/src/emqx_bridge_resource.erl
index 903e86443..347f9d973 100644
--- a/apps/emqx_bridge/src/emqx_bridge_resource.erl
+++ b/apps/emqx_bridge/src/emqx_bridge_resource.erl
@@ -186,7 +186,7 @@ update(Type, Name, {OldConf, Conf}, Opts0) ->
     %% without restarting the bridge.
     %%
     Opts = override_start_after_created(Conf, Opts0),
-    case emqx_map_lib:if_only_to_toggle_enable(OldConf, Conf) of
+    case emqx_utils_maps:if_only_to_toggle_enable(OldConf, Conf) of
         false ->
             ?SLOG(info, #{
                 msg => "update bridge",
@@ -238,7 +238,7 @@ recreate(Type, Name, Conf, Opts) ->
 create_dry_run(Type, Conf0) ->
     TmpPath0 = iolist_to_binary([?TEST_ID_PREFIX, emqx_utils:gen_id(8)]),
     TmpPath = emqx_utils:safe_filename(TmpPath0),
-    Conf = emqx_map_lib:safe_atom_key_map(Conf0),
+    Conf = emqx_utils_maps:safe_atom_key_map(Conf0),
     case emqx_connector_ssl:convert_certs(TmpPath, Conf) of
         {error, Reason} ->
             {error, Reason};
diff --git a/apps/emqx_bridge/src/schema/emqx_bridge_schema.erl b/apps/emqx_bridge/src/schema/emqx_bridge_schema.erl
index 52000ba7f..e5def2d64 100644
--- a/apps/emqx_bridge/src/schema/emqx_bridge_schema.erl
+++ b/apps/emqx_bridge/src/schema/emqx_bridge_schema.erl
@@ -251,7 +251,7 @@ do_convert_webhook_config(
     case {MReqTRoot, MReqTResource} of
         {{ok, ReqTRoot}, {ok, ReqTResource}} ->
             {_Parsed, ReqTRaw} = max({ReqTRoot, ReqTRootRaw}, {ReqTResource, ReqTResourceRaw}),
-            Conf1 = emqx_map_lib:deep_merge(
+            Conf1 = emqx_utils_maps:deep_merge(
                 Conf0,
                 #{
                     <<"request_timeout">> => ReqTRaw,
diff --git a/apps/emqx_bridge/test/emqx_bridge_api_SUITE.erl b/apps/emqx_bridge/test/emqx_bridge_api_SUITE.erl
index ef997f7e3..3afe17080 100644
--- a/apps/emqx_bridge/test/emqx_bridge_api_SUITE.erl
+++ b/apps/emqx_bridge/test/emqx_bridge_api_SUITE.erl
@@ -1221,7 +1221,7 @@ t_inconsistent_webhook_request_timeouts(Config) ->
     URL1 = ?URL(Port, "path1"),
     Name = ?BRIDGE_NAME,
     BadBridgeParams =
-        emqx_map_lib:deep_merge(
+        emqx_utils_maps:deep_merge(
             ?HTTP_BRIDGE(URL1, Name),
             #{
                 <<"request_timeout">> => <<"1s">>,
diff --git a/apps/emqx_bridge/test/emqx_bridge_mqtt_SUITE.erl b/apps/emqx_bridge/test/emqx_bridge_mqtt_SUITE.erl
index bd6af9323..ab58ce383 100644
--- a/apps/emqx_bridge/test/emqx_bridge_mqtt_SUITE.erl
+++ b/apps/emqx_bridge/test/emqx_bridge_mqtt_SUITE.erl
@@ -270,7 +270,7 @@ t_mqtt_conn_bridge_ingress_downgrades_qos_2(_) ->
         ?SERVER_CONF(<<"user1">>)#{
             <<"type">> => ?TYPE_MQTT,
             <<"name">> => BridgeName,
-            <<"ingress">> => emqx_map_lib:deep_merge(
+            <<"ingress">> => emqx_utils_maps:deep_merge(
                 ?INGRESS_CONF,
                 #{<<"remote">> => #{<<"qos">> => 2}}
             )
diff --git a/apps/emqx_bridge_kafka/test/emqx_bridge_kafka_impl_consumer_SUITE.erl b/apps/emqx_bridge_kafka/test/emqx_bridge_kafka_impl_consumer_SUITE.erl
index 254284b75..08fbf5e15 100644
--- a/apps/emqx_bridge_kafka/test/emqx_bridge_kafka_impl_consumer_SUITE.erl
+++ b/apps/emqx_bridge_kafka/test/emqx_bridge_kafka_impl_consumer_SUITE.erl
@@ -673,7 +673,7 @@ create_bridge(Config, Overrides) ->
     Type = ?BRIDGE_TYPE_BIN,
     Name = ?config(kafka_name, Config),
     KafkaConfig0 = ?config(kafka_config, Config),
-    KafkaConfig = emqx_map_lib:deep_merge(KafkaConfig0, Overrides),
+    KafkaConfig = emqx_utils_maps:deep_merge(KafkaConfig0, Overrides),
     emqx_bridge:create(Type, Name, KafkaConfig).
 
 delete_bridge(Config) ->
@@ -696,7 +696,7 @@ create_bridge_api(Config, Overrides) ->
     TypeBin = ?BRIDGE_TYPE_BIN,
     Name = ?config(kafka_name, Config),
     KafkaConfig0 = ?config(kafka_config, Config),
-    KafkaConfig = emqx_map_lib:deep_merge(KafkaConfig0, Overrides),
+    KafkaConfig = emqx_utils_maps:deep_merge(KafkaConfig0, Overrides),
     Params = KafkaConfig#{<<"type">> => TypeBin, <<"name">> => Name},
     Path = emqx_mgmt_api_test_util:api_path(["bridges"]),
     AuthHeader = emqx_mgmt_api_test_util:auth_header_(),
@@ -719,7 +719,7 @@ update_bridge_api(Config, Overrides) ->
     TypeBin = ?BRIDGE_TYPE_BIN,
     Name = ?config(kafka_name, Config),
     KafkaConfig0 = ?config(kafka_config, Config),
-    KafkaConfig = emqx_map_lib:deep_merge(KafkaConfig0, Overrides),
+    KafkaConfig = emqx_utils_maps:deep_merge(KafkaConfig0, Overrides),
     BridgeId = emqx_bridge_resource:bridge_id(TypeBin, Name),
     Params = KafkaConfig#{<<"type">> => TypeBin, <<"name">> => Name},
     Path = emqx_mgmt_api_test_util:api_path(["bridges", BridgeId]),
diff --git a/apps/emqx_bridge_kafka/test/emqx_bridge_kafka_tests.erl b/apps/emqx_bridge_kafka/test/emqx_bridge_kafka_tests.erl
index fa352ce89..b16df854f 100644
--- a/apps/emqx_bridge_kafka/test/emqx_bridge_kafka_tests.erl
+++ b/apps/emqx_bridge_kafka/test/emqx_bridge_kafka_tests.erl
@@ -92,7 +92,7 @@ kafka_consumer_test() ->
     ),
 
     %% Bad: can't repeat kafka topics.
-    BadConf1 = emqx_map_lib:deep_put(
+    BadConf1 = emqx_utils_maps:deep_put(
         [<<"bridges">>, <<"kafka_consumer">>, <<"my_consumer">>, <<"topic_mapping">>],
         Conf1,
         [
@@ -121,7 +121,7 @@ kafka_consumer_test() ->
     ),
 
     %% Bad: there must be at least 1 mapping.
-    BadConf2 = emqx_map_lib:deep_put(
+    BadConf2 = emqx_utils_maps:deep_put(
         [<<"bridges">>, <<"kafka_consumer">>, <<"my_consumer">>, <<"topic_mapping">>],
         Conf1,
         []
diff --git a/apps/emqx_conf/src/emqx_conf.erl b/apps/emqx_conf/src/emqx_conf.erl
index d03cf9c27..246875ab6 100644
--- a/apps/emqx_conf/src/emqx_conf.erl
+++ b/apps/emqx_conf/src/emqx_conf.erl
@@ -43,50 +43,50 @@ add_handler(ConfKeyPath, HandlerName) ->
 remove_handler(ConfKeyPath) ->
     emqx_config_handler:remove_handler(ConfKeyPath).
 
--spec get(emqx_map_lib:config_key_path()) -> term().
+-spec get(emqx_utils_maps:config_key_path()) -> term().
 get(KeyPath) ->
     emqx:get_config(KeyPath).
 
--spec get(emqx_map_lib:config_key_path(), term()) -> term().
+-spec get(emqx_utils_maps:config_key_path(), term()) -> term().
 get(KeyPath, Default) ->
     emqx:get_config(KeyPath, Default).
 
--spec get_raw(emqx_map_lib:config_key_path(), term()) -> term().
+-spec get_raw(emqx_utils_maps:config_key_path(), term()) -> term().
 get_raw(KeyPath, Default) ->
     emqx_config:get_raw(KeyPath, Default).
 
--spec get_raw(emqx_map_lib:config_key_path()) -> term().
+-spec get_raw(emqx_utils_maps:config_key_path()) -> term().
 get_raw(KeyPath) ->
     emqx_config:get_raw(KeyPath).
 
 %% @doc Returns all values in the cluster.
--spec get_all(emqx_map_lib:config_key_path()) -> #{node() => term()}.
+-spec get_all(emqx_utils_maps:config_key_path()) -> #{node() => term()}.
 get_all(KeyPath) ->
     {ResL, []} = emqx_conf_proto_v2:get_all(KeyPath),
     maps:from_list(ResL).
 
 %% @doc Returns the specified node's KeyPath, or exception if not found
--spec get_by_node(node(), emqx_map_lib:config_key_path()) -> term().
+-spec get_by_node(node(), emqx_utils_maps:config_key_path()) -> term().
 get_by_node(Node, KeyPath) when Node =:= node() ->
     emqx:get_config(KeyPath);
 get_by_node(Node, KeyPath) ->
     emqx_conf_proto_v2:get_config(Node, KeyPath).
 
 %% @doc Returns the specified node's KeyPath, or the default value if not found
--spec get_by_node(node(), emqx_map_lib:config_key_path(), term()) -> term().
+-spec get_by_node(node(), emqx_utils_maps:config_key_path(), term()) -> term().
 get_by_node(Node, KeyPath, Default) when Node =:= node() ->
     emqx:get_config(KeyPath, Default);
 get_by_node(Node, KeyPath, Default) ->
     emqx_conf_proto_v2:get_config(Node, KeyPath, Default).
 
 %% @doc Returns the specified node's KeyPath, or config_not_found if key path not found
--spec get_node_and_config(emqx_map_lib:config_key_path()) -> term().
+-spec get_node_and_config(emqx_utils_maps:config_key_path()) -> term().
 get_node_and_config(KeyPath) ->
     {node(), emqx:get_config(KeyPath, config_not_found)}.
 
 %% @doc Update all value of key path in cluster-override.conf or local-override.conf.
 -spec update(
-    emqx_map_lib:config_key_path(),
+    emqx_utils_maps:config_key_path(),
     emqx_config:update_request(),
     emqx_config:update_opts()
 ) ->
@@ -97,7 +97,7 @@ update(KeyPath, UpdateReq, Opts) ->
 %% @doc Update the specified node's key path in local-override.conf.
 -spec update(
     node(),
-    emqx_map_lib:config_key_path(),
+    emqx_utils_maps:config_key_path(),
     emqx_config:update_request(),
     emqx_config:update_opts()
 ) ->
@@ -108,13 +108,13 @@ update(Node, KeyPath, UpdateReq, Opts) ->
     emqx_conf_proto_v2:update(Node, KeyPath, UpdateReq, Opts).
 
 %% @doc remove all value of key path in cluster-override.conf or local-override.conf.
--spec remove(emqx_map_lib:config_key_path(), emqx_config:update_opts()) ->
+-spec remove(emqx_utils_maps:config_key_path(), emqx_config:update_opts()) ->
     {ok, emqx_config:update_result()} | {error, emqx_config:update_error()}.
 remove(KeyPath, Opts) ->
     emqx_conf_proto_v2:remove_config(KeyPath, Opts).
 
 %% @doc remove the specified node's key path in local-override.conf.
--spec remove(node(), emqx_map_lib:config_key_path(), emqx_config:update_opts()) ->
+-spec remove(node(), emqx_utils_maps:config_key_path(), emqx_config:update_opts()) ->
     {ok, emqx_config:update_result()} | {error, emqx_config:update_error()}.
 remove(Node, KeyPath, Opts) when Node =:= node() ->
     emqx:remove_config(KeyPath, Opts#{override_to => local});
@@ -122,13 +122,13 @@ remove(Node, KeyPath, Opts) ->
     emqx_conf_proto_v2:remove_config(Node, KeyPath, Opts).
 
 %% @doc reset all value of key path in cluster-override.conf or local-override.conf.
--spec reset(emqx_map_lib:config_key_path(), emqx_config:update_opts()) ->
+-spec reset(emqx_utils_maps:config_key_path(), emqx_config:update_opts()) ->
     {ok, emqx_config:update_result()} | {error, emqx_config:update_error()}.
 reset(KeyPath, Opts) ->
     emqx_conf_proto_v2:reset(KeyPath, Opts).
 
 %% @doc reset the specified node's key path in local-override.conf.
--spec reset(node(), emqx_map_lib:config_key_path(), emqx_config:update_opts()) ->
+-spec reset(node(), emqx_utils_maps:config_key_path(), emqx_config:update_opts()) ->
     {ok, emqx_config:update_result()} | {error, emqx_config:update_error()}.
 reset(Node, KeyPath, Opts) when Node =:= node() ->
     emqx:reset_config(KeyPath, Opts#{override_to => local});
diff --git a/apps/emqx_conf/src/proto/emqx_conf_proto_v1.erl b/apps/emqx_conf/src/proto/emqx_conf_proto_v1.erl
index 84687e314..b66307a1b 100644
--- a/apps/emqx_conf/src/proto/emqx_conf_proto_v1.erl
+++ b/apps/emqx_conf/src/proto/emqx_conf_proto_v1.erl
@@ -38,22 +38,22 @@
 
 -include_lib("emqx/include/bpapi.hrl").
 
--type update_config_key_path() :: [emqx_map_lib:config_key(), ...].
+-type update_config_key_path() :: [emqx_utils_maps:config_key(), ...].
 
 introduced_in() ->
     "5.0.0".
 
--spec get_config(node(), emqx_map_lib:config_key_path()) ->
+-spec get_config(node(), emqx_utils_maps:config_key_path()) ->
     term() | emqx_rpc:badrpc().
 get_config(Node, KeyPath) ->
     rpc:call(Node, emqx, get_config, [KeyPath]).
 
--spec get_config(node(), emqx_map_lib:config_key_path(), _Default) ->
+-spec get_config(node(), emqx_utils_maps:config_key_path(), _Default) ->
     term() | emqx_rpc:badrpc().
 get_config(Node, KeyPath, Default) ->
     rpc:call(Node, emqx, get_config, [KeyPath, Default]).
 
--spec get_all(emqx_map_lib:config_key_path()) -> emqx_rpc:multicall_result().
+-spec get_all(emqx_utils_maps:config_key_path()) -> emqx_rpc:multicall_result().
 get_all(KeyPath) ->
     rpc:multicall(emqx_conf, get_node_and_config, [KeyPath], 5000).
 
diff --git a/apps/emqx_conf/src/proto/emqx_conf_proto_v2.erl b/apps/emqx_conf/src/proto/emqx_conf_proto_v2.erl
index dd8d2fedd..97446ee9f 100644
--- a/apps/emqx_conf/src/proto/emqx_conf_proto_v2.erl
+++ b/apps/emqx_conf/src/proto/emqx_conf_proto_v2.erl
@@ -44,19 +44,19 @@ introduced_in() ->
 -spec sync_data_from_node(node()) -> {ok, binary()} | emqx_rpc:badrpc().
 sync_data_from_node(Node) ->
     rpc:call(Node, emqx_conf_app, sync_data_from_node, [], 20000).
--type update_config_key_path() :: [emqx_map_lib:config_key(), ...].
+-type update_config_key_path() :: [emqx_utils_maps:config_key(), ...].
 
--spec get_config(node(), emqx_map_lib:config_key_path()) ->
+-spec get_config(node(), emqx_utils_maps:config_key_path()) ->
     term() | emqx_rpc:badrpc().
 get_config(Node, KeyPath) ->
     rpc:call(Node, emqx, get_config, [KeyPath]).
 
--spec get_config(node(), emqx_map_lib:config_key_path(), _Default) ->
+-spec get_config(node(), emqx_utils_maps:config_key_path(), _Default) ->
     term() | emqx_rpc:badrpc().
 get_config(Node, KeyPath, Default) ->
     rpc:call(Node, emqx, get_config, [KeyPath, Default]).
 
--spec get_all(emqx_map_lib:config_key_path()) -> emqx_rpc:multicall_result().
+-spec get_all(emqx_utils_maps:config_key_path()) -> emqx_rpc:multicall_result().
 get_all(KeyPath) ->
     rpc:multicall(emqx_conf, get_node_and_config, [KeyPath], 5000).
 
diff --git a/apps/emqx_connector/src/emqx_connector_ssl.erl b/apps/emqx_connector/src/emqx_connector_ssl.erl
index 54dc0e022..e07d95d51 100644
--- a/apps/emqx_connector/src/emqx_connector_ssl.erl
+++ b/apps/emqx_connector/src/emqx_connector_ssl.erl
@@ -74,7 +74,7 @@ new_ssl_config(Config, _NewSSL) ->
 normalize_key_to_bin(undefined) ->
     undefined;
 normalize_key_to_bin(Map) when is_map(Map) ->
-    emqx_map_lib:binary_key_map(Map).
+    emqx_utils_maps:binary_key_map(Map).
 
 try_map_get(Key, Map, Default) when is_map(Map) ->
     maps:get(Key, Map, Default);
diff --git a/apps/emqx_connector/src/mqtt/emqx_connector_mqtt_worker.erl b/apps/emqx_connector/src/mqtt/emqx_connector_mqtt_worker.erl
index 5197a35df..880a99313 100644
--- a/apps/emqx_connector/src/mqtt/emqx_connector_mqtt_worker.erl
+++ b/apps/emqx_connector/src/mqtt/emqx_connector_mqtt_worker.erl
@@ -410,7 +410,7 @@ handle_disconnect(_Reason) ->
     ok.
 
 maybe_publish_local(Msg, Vars, Props) ->
-    case emqx_map_lib:deep_get([local, topic], Vars, undefined) of
+    case emqx_utils_maps:deep_get([local, topic], Vars, undefined) of
         %% local topic is not set, discard it
         undefined ->
             ok;
diff --git a/apps/emqx_dashboard/src/emqx_dashboard_listener.erl b/apps/emqx_dashboard/src/emqx_dashboard_listener.erl
index eac4f845f..01d96bdf0 100644
--- a/apps/emqx_dashboard/src/emqx_dashboard_listener.erl
+++ b/apps/emqx_dashboard/src/emqx_dashboard_listener.erl
@@ -119,7 +119,7 @@ remove_handler() ->
 
 pre_config_update(_Path, UpdateConf0, RawConf) ->
     UpdateConf = remove_sensitive_data(UpdateConf0),
-    NewConf = emqx_map_lib:deep_merge(RawConf, UpdateConf),
+    NewConf = emqx_utils_maps:deep_merge(RawConf, UpdateConf),
     ensure_ssl_cert(NewConf).
 
 -define(SENSITIVE_PASSWORD, <<"******">>).
@@ -134,7 +134,7 @@ remove_sensitive_data(Conf0) ->
         end,
     case Conf1 of
         #{<<"listeners">> := #{<<"https">> := #{<<"password">> := ?SENSITIVE_PASSWORD}}} ->
-            emqx_map_lib:deep_remove([<<"listeners">>, <<"https">>, <<"password">>], Conf1);
+            emqx_utils_maps:deep_remove([<<"listeners">>, <<"https">>, <<"password">>], Conf1);
         _ ->
             Conf1
     end.
@@ -152,7 +152,7 @@ post_config_update(_, _Req, NewConf, OldConf, _AppEnvs) ->
     ok.
 
 get_listener(Type, Conf) ->
-    emqx_map_lib:deep_get([listeners, Type], Conf, undefined).
+    emqx_utils_maps:deep_get([listeners, Type], Conf, undefined).
 
 diff_listeners(_, Listener, Listener) -> {#{}, #{}};
 diff_listeners(Type, undefined, Start) -> {#{}, #{Type => Start}};
@@ -162,13 +162,14 @@ diff_listeners(Type, Stop, Start) -> {#{Type => Stop}, #{Type => Start}}.
 -define(DIR, <<"dashboard">>).
 
 ensure_ssl_cert(#{<<"listeners">> := #{<<"https">> := #{<<"enable">> := true}}} = Conf) ->
-    Https = emqx_map_lib:deep_get([<<"listeners">>, <<"https">>], Conf, undefined),
+    Https = emqx_utils_maps:deep_get([<<"listeners">>, <<"https">>], Conf, undefined),
     Opts = #{required_keys => [[<<"keyfile">>], [<<"certfile">>], [<<"cacertfile">>]]},
     case emqx_tls_lib:ensure_ssl_files(?DIR, Https, Opts) of
         {ok, undefined} ->
             {error, <<"ssl_cert_not_found">>};
         {ok, NewHttps} ->
-            {ok, emqx_map_lib:deep_merge(Conf, #{<<"listeners">> => #{<<"https">> => NewHttps}})};
+            {ok,
+                emqx_utils_maps:deep_merge(Conf, #{<<"listeners">> => #{<<"https">> => NewHttps}})};
         {error, Reason} ->
             ?SLOG(error, Reason#{msg => "bad_ssl_config"}),
             {error, Reason}
diff --git a/apps/emqx_dashboard/src/emqx_dashboard_swagger.erl b/apps/emqx_dashboard/src/emqx_dashboard_swagger.erl
index 22cf484ff..b2ad69997 100644
--- a/apps/emqx_dashboard/src/emqx_dashboard_swagger.erl
+++ b/apps/emqx_dashboard/src/emqx_dashboard_swagger.erl
@@ -474,7 +474,7 @@ maybe_add_summary_from_label(Spec, Hocon) ->
 get_i18n(Key, Struct, Default) ->
     {ok, #{cache := Cache, lang := Lang}} = emqx_dashboard:get_i18n(),
     Desc = hocon_schema:resolve_schema(Struct, Cache),
-    emqx_map_lib:deep_get([Key, Lang], Desc, Default).
+    emqx_utils_maps:deep_get([Key, Lang], Desc, Default).
 
 trans_label(Spec, Hocon, Default) ->
     Label =
diff --git a/apps/emqx_exhook/src/emqx_exhook_mgr.erl b/apps/emqx_exhook/src/emqx_exhook_mgr.erl
index 77937a835..0647c80ea 100644
--- a/apps/emqx_exhook/src/emqx_exhook_mgr.erl
+++ b/apps/emqx_exhook/src/emqx_exhook_mgr.erl
@@ -507,11 +507,11 @@ sort_name_by_order(Names, Orders) ->
     lists:sort(
         fun
             (A, B) when is_binary(A) ->
-                emqx_map_lib:deep_get([A, order], Orders) <
-                    emqx_map_lib:deep_get([B, order], Orders);
+                emqx_utils_maps:deep_get([A, order], Orders) <
+                    emqx_utils_maps:deep_get([B, order], Orders);
             (#{name := A}, #{name := B}) ->
-                emqx_map_lib:deep_get([A, order], Orders) <
-                    emqx_map_lib:deep_get([B, order], Orders)
+                emqx_utils_maps:deep_get([A, order], Orders) <
+                    emqx_utils_maps:deep_get([B, order], Orders)
         end,
         Names
     ).
diff --git a/apps/emqx_exhook/test/emqx_exhook_api_SUITE.erl b/apps/emqx_exhook/test/emqx_exhook_api_SUITE.erl
index 58f2f29b4..c03b3f231 100644
--- a/apps/emqx_exhook/test/emqx_exhook_api_SUITE.erl
+++ b/apps/emqx_exhook/test/emqx_exhook_api_SUITE.erl
@@ -311,7 +311,7 @@ t_update(Cfg) ->
 
 decode_json(Data) ->
     BinJosn = emqx_utils_json:decode(Data, [return_maps]),
-    emqx_map_lib:unsafe_atom_key_map(BinJosn).
+    emqx_utils_maps:unsafe_atom_key_map(BinJosn).
 
 request_api(Method, Url, Auth) ->
     request_api(Method, Url, [], Auth, []).
diff --git a/apps/emqx_gateway/src/emqx_gateway_api_listeners.erl b/apps/emqx_gateway/src/emqx_gateway_api_listeners.erl
index 14b80a500..d90bf3689 100644
--- a/apps/emqx_gateway/src/emqx_gateway_api_listeners.erl
+++ b/apps/emqx_gateway/src/emqx_gateway_api_listeners.erl
@@ -96,7 +96,7 @@ listeners(post, #{bindings := #{name := Name0}, body := LConf}) ->
         LName = binary_to_atom(maps:get(<<"name">>, LConf)),
 
         Path = [listeners, Type, LName],
-        case emqx_map_lib:deep_get(Path, RunningConf, undefined) of
+        case emqx_utils_maps:deep_get(Path, RunningConf, undefined) of
             undefined ->
                 ListenerId = emqx_gateway_utils:listener_id(
                     GwName, Type, LName
diff --git a/apps/emqx_gateway/src/emqx_gateway_conf.erl b/apps/emqx_gateway/src/emqx_gateway_conf.erl
index 07a4c1e2c..56a3e2068 100644
--- a/apps/emqx_gateway/src/emqx_gateway_conf.erl
+++ b/apps/emqx_gateway/src/emqx_gateway_conf.erl
@@ -106,7 +106,7 @@ unconvert_listeners(Ls) when is_list(Ls) ->
             {[Type, Name], Lis1} = maps_key_take([<<"type">>, <<"name">>], Lis),
             _ = vaildate_listener_name(Name),
             NLis1 = maps:without([<<"id">>, <<"running">>], Lis1),
-            emqx_map_lib:deep_merge(Acc, #{Type => #{Name => NLis1}})
+            emqx_utils_maps:deep_merge(Acc, #{Type => #{Name => NLis1}})
         end,
         #{},
         Ls
@@ -160,8 +160,8 @@ gateway(GwName0) ->
     RawConf = emqx_config:fill_defaults(
         emqx_config:get_root_raw(Path)
     ),
-    Confs = emqx_map_lib:jsonable_map(
-        emqx_map_lib:deep_get(Path, RawConf)
+    Confs = emqx_utils_maps:jsonable_map(
+        emqx_utils_maps:deep_get(Path, RawConf)
     ),
     LsConf = maps:get(<<"listeners">>, Confs, #{}),
     Confs#{<<"listeners">> => convert_listeners(GwName, LsConf)}.
@@ -198,8 +198,8 @@ listeners(GwName0) ->
     RawConf = emqx_config:fill_defaults(
         emqx_config:get_root_raw([<<"gateway">>])
     ),
-    Listeners = emqx_map_lib:jsonable_map(
-        emqx_map_lib:deep_get(
+    Listeners = emqx_utils_maps:jsonable_map(
+        emqx_utils_maps:deep_get(
             [<<"gateway">>, GwName, <<"listeners">>], RawConf
         )
     ),
@@ -213,12 +213,12 @@ listener(ListenerId) ->
     ),
     try
         Path = [<<"gateway">>, GwName, <<"listeners">>, Type, LName],
-        LConf = emqx_map_lib:deep_get(Path, RootConf),
+        LConf = emqx_utils_maps:deep_get(Path, RootConf),
         Running = emqx_gateway_utils:is_running(
             binary_to_existing_atom(ListenerId), LConf
         ),
         {ok,
-            emqx_map_lib:jsonable_map(
+            emqx_utils_maps:jsonable_map(
                 LConf#{
                     id => ListenerId,
                     type => Type,
@@ -305,8 +305,8 @@ ret_ok_err({ok, _}) -> ok;
 ret_ok_err(Err) -> Err.
 
 ret_gw(GwName, {ok, #{raw_config := GwConf}}) ->
-    GwConf1 = emqx_map_lib:deep_get([bin(GwName)], GwConf),
-    LsConf = emqx_map_lib:deep_get(
+    GwConf1 = emqx_utils_maps:deep_get([bin(GwName)], GwConf),
+    LsConf = emqx_utils_maps:deep_get(
         [bin(GwName), <<"listeners">>],
         GwConf,
         #{}
@@ -331,7 +331,7 @@ ret_gw(_GwName, Err) ->
     Err.
 
 ret_authn(GwName, {ok, #{raw_config := GwConf}}) ->
-    Authn = emqx_map_lib:deep_get(
+    Authn = emqx_utils_maps:deep_get(
         [bin(GwName), <<"authentication">>],
         GwConf
     ),
@@ -340,7 +340,7 @@ ret_authn(_GwName, Err) ->
     Err.
 
 ret_authn(GwName, {LType, LName}, {ok, #{raw_config := GwConf}}) ->
-    Authn = emqx_map_lib:deep_get(
+    Authn = emqx_utils_maps:deep_get(
         [
             bin(GwName),
             <<"listeners">>,
@@ -355,7 +355,7 @@ ret_authn(_, _, Err) ->
     Err.
 
 ret_listener_or_err(GwName, {LType, LName}, {ok, #{raw_config := GwConf}}) ->
-    LConf = emqx_map_lib:deep_get(
+    LConf = emqx_utils_maps:deep_get(
         [bin(GwName), <<"listeners">>, bin(LType), bin(LName)],
         GwConf
     ),
@@ -377,7 +377,7 @@ pre_config_update(_, {load_gateway, GwName, Conf}, RawConf) ->
     case maps:get(GwName, RawConf, undefined) of
         undefined ->
             NConf = tune_gw_certs(fun convert_certs/2, GwName, Conf),
-            {ok, emqx_map_lib:deep_put([GwName], RawConf, NConf)};
+            {ok, emqx_utils_maps:deep_put([GwName], RawConf, NConf)};
         _ ->
             badres_gateway(already_exist, GwName)
     end;
@@ -389,7 +389,7 @@ pre_config_update(_, {update_gateway, GwName, Conf}, RawConf) ->
             Conf1 = maps:without([<<"listeners">>, ?AUTHN_BIN], Conf),
             NConf = tune_gw_certs(fun convert_certs/2, GwName, Conf1),
             NConf1 = maps:merge(GwRawConf, NConf),
-            {ok, emqx_map_lib:deep_put([GwName], RawConf, NConf1)}
+            {ok, emqx_utils_maps:deep_put([GwName], RawConf, NConf1)}
     end;
 pre_config_update(_, {unload_gateway, GwName}, RawConf) ->
     _ = tune_gw_certs(
@@ -400,7 +400,7 @@ pre_config_update(_, {unload_gateway, GwName}, RawConf) ->
     {ok, maps:remove(GwName, RawConf)};
 pre_config_update(_, {add_listener, GwName, {LType, LName}, Conf}, RawConf) ->
     case
-        emqx_map_lib:deep_get(
+        emqx_utils_maps:deep_get(
             [GwName, <<"listeners">>, LType, LName], RawConf, undefined
         )
     of
@@ -408,7 +408,7 @@ pre_config_update(_, {add_listener, GwName, {LType, LName}, Conf}, RawConf) ->
             NConf = convert_certs(certs_dir(GwName), Conf),
             NListener = #{LType => #{LName => NConf}},
             {ok,
-                emqx_map_lib:deep_merge(
+                emqx_utils_maps:deep_merge(
                     RawConf,
                     #{GwName => #{<<"listeners">> => NListener}}
                 )};
@@ -417,7 +417,7 @@ pre_config_update(_, {add_listener, GwName, {LType, LName}, Conf}, RawConf) ->
     end;
 pre_config_update(_, {update_listener, GwName, {LType, LName}, Conf}, RawConf) ->
     case
-        emqx_map_lib:deep_get(
+        emqx_utils_maps:deep_get(
             [GwName, <<"listeners">>, LType, LName], RawConf, undefined
         )
     of
@@ -425,7 +425,7 @@ pre_config_update(_, {update_listener, GwName, {LType, LName}, Conf}, RawConf) -
             badres_listener(not_found, GwName, LType, LName);
         OldConf ->
             NConf = convert_certs(certs_dir(GwName), Conf, OldConf),
-            NRawConf = emqx_map_lib:deep_put(
+            NRawConf = emqx_utils_maps:deep_put(
                 [GwName, <<"listeners">>, LType, LName],
                 RawConf,
                 NConf
@@ -434,22 +434,22 @@ pre_config_update(_, {update_listener, GwName, {LType, LName}, Conf}, RawConf) -
     end;
 pre_config_update(_, {remove_listener, GwName, {LType, LName}}, RawConf) ->
     Path = [GwName, <<"listeners">>, LType, LName],
-    case emqx_map_lib:deep_get(Path, RawConf, undefined) of
+    case emqx_utils_maps:deep_get(Path, RawConf, undefined) of
         undefined ->
             {ok, RawConf};
         OldConf ->
             clear_certs(certs_dir(GwName), OldConf),
-            {ok, emqx_map_lib:deep_remove(Path, RawConf)}
+            {ok, emqx_utils_maps:deep_remove(Path, RawConf)}
     end;
 pre_config_update(_, {add_authn, GwName, Conf}, RawConf) ->
     case
-        emqx_map_lib:deep_get(
+        emqx_utils_maps:deep_get(
             [GwName, ?AUTHN_BIN], RawConf, undefined
         )
     of
         undefined ->
             {ok,
-                emqx_map_lib:deep_merge(
+                emqx_utils_maps:deep_merge(
                     RawConf,
                     #{GwName => #{?AUTHN_BIN => Conf}}
                 )};
@@ -458,7 +458,7 @@ pre_config_update(_, {add_authn, GwName, Conf}, RawConf) ->
     end;
 pre_config_update(_, {add_authn, GwName, {LType, LName}, Conf}, RawConf) ->
     case
-        emqx_map_lib:deep_get(
+        emqx_utils_maps:deep_get(
             [GwName, <<"listeners">>, LType, LName],
             RawConf,
             undefined
@@ -477,25 +477,25 @@ pre_config_update(_, {add_authn, GwName, {LType, LName}, Conf}, RawConf) ->
                                     #{LType => #{LName => NListener}}
                             }
                     },
-                    {ok, emqx_map_lib:deep_merge(RawConf, NGateway)};
+                    {ok, emqx_utils_maps:deep_merge(RawConf, NGateway)};
                 _ ->
                     badres_listener_authn(already_exist, GwName, LType, LName)
             end
     end;
 pre_config_update(_, {update_authn, GwName, Conf}, RawConf) ->
     case
-        emqx_map_lib:deep_get(
+        emqx_utils_maps:deep_get(
             [GwName, ?AUTHN_BIN], RawConf, undefined
         )
     of
         undefined ->
             badres_authn(not_found, GwName);
         _Authn ->
-            {ok, emqx_map_lib:deep_put([GwName, ?AUTHN_BIN], RawConf, Conf)}
+            {ok, emqx_utils_maps:deep_put([GwName, ?AUTHN_BIN], RawConf, Conf)}
     end;
 pre_config_update(_, {update_authn, GwName, {LType, LName}, Conf}, RawConf) ->
     case
-        emqx_map_lib:deep_get(
+        emqx_utils_maps:deep_get(
             [GwName, <<"listeners">>, LType, LName],
             RawConf,
             undefined
@@ -514,7 +514,7 @@ pre_config_update(_, {update_authn, GwName, {LType, LName}, Conf}, RawConf) ->
                         Listener
                     ),
                     {ok,
-                        emqx_map_lib:deep_put(
+                        emqx_utils_maps:deep_put(
                             [GwName, <<"listeners">>, LType, LName],
                             RawConf,
                             NListener
@@ -523,12 +523,12 @@ pre_config_update(_, {update_authn, GwName, {LType, LName}, Conf}, RawConf) ->
     end;
 pre_config_update(_, {remove_authn, GwName}, RawConf) ->
     {ok,
-        emqx_map_lib:deep_remove(
+        emqx_utils_maps:deep_remove(
             [GwName, ?AUTHN_BIN], RawConf
         )};
 pre_config_update(_, {remove_authn, GwName, {LType, LName}}, RawConf) ->
     Path = [GwName, <<"listeners">>, LType, LName, ?AUTHN_BIN],
-    {ok, emqx_map_lib:deep_remove(Path, RawConf)};
+    {ok, emqx_utils_maps:deep_remove(Path, RawConf)};
 pre_config_update(_, UnknownReq, _RawConf) ->
     logger:error("Unknown configuration update request: ~0p", [UnknownReq]),
     {error, badreq}.
diff --git a/apps/emqx_gateway/src/emqx_gateway_http.erl b/apps/emqx_gateway/src/emqx_gateway_http.erl
index 9bb5821f5..7aaaee9cb 100644
--- a/apps/emqx_gateway/src/emqx_gateway_http.erl
+++ b/apps/emqx_gateway/src/emqx_gateway_http.erl
@@ -240,7 +240,7 @@ authn(GwName) ->
     ChainName = emqx_gateway_utils:global_chain(GwName),
     wrap_chain_name(
         ChainName,
-        emqx_map_lib:jsonable_map(emqx:get_raw_config(Path))
+        emqx_utils_maps:jsonable_map(emqx:get_raw_config(Path))
     ).
 
 -spec authn(gateway_name(), binary()) -> map().
@@ -250,7 +250,7 @@ authn(GwName, ListenerId) ->
     ChainName = emqx_gateway_utils:listener_chain(GwName, Type, Name),
     wrap_chain_name(
         ChainName,
-        emqx_map_lib:jsonable_map(emqx:get_raw_config(Path))
+        emqx_utils_maps:jsonable_map(emqx:get_raw_config(Path))
     ).
 
 wrap_chain_name(ChainName, Conf) ->
diff --git a/apps/emqx_gateway/test/emqx_gateway_api_SUITE.erl b/apps/emqx_gateway/test/emqx_gateway_api_SUITE.erl
index 10adcc428..fb648062a 100644
--- a/apps/emqx_gateway/test/emqx_gateway_api_SUITE.erl
+++ b/apps/emqx_gateway/test/emqx_gateway_api_SUITE.erl
@@ -164,7 +164,7 @@ t_gateway_stomp(_) ->
     {204, _} = request(put, "/gateways/stomp", GwConf),
     {200, ConfResp} = request(get, "/gateways/stomp"),
     assert_confs(GwConf, ConfResp),
-    GwConf2 = emqx_map_lib:deep_merge(GwConf, #{frame => #{max_headers => 10}}),
+    GwConf2 = emqx_utils_maps:deep_merge(GwConf, #{frame => #{max_headers => 10}}),
     {204, _} = request(put, "/gateways/stomp", maps:without([name, listeners], GwConf2)),
     {200, ConfResp2} = request(get, "/gateways/stomp"),
     assert_confs(GwConf2, ConfResp2),
@@ -186,7 +186,7 @@ t_gateway_mqttsn(_) ->
     {204, _} = request(put, "/gateways/mqttsn", GwConf),
     {200, ConfResp} = request(get, "/gateways/mqttsn"),
     assert_confs(GwConf, ConfResp),
-    GwConf2 = emqx_map_lib:deep_merge(GwConf, #{predefined => []}),
+    GwConf2 = emqx_utils_maps:deep_merge(GwConf, #{predefined => []}),
     {204, _} = request(put, "/gateways/mqttsn", maps:without([name, listeners], GwConf2)),
     {200, ConfResp2} = request(get, "/gateways/mqttsn"),
     assert_confs(GwConf2, ConfResp2),
@@ -206,7 +206,7 @@ t_gateway_coap(_) ->
     {204, _} = request(put, "/gateways/coap", GwConf),
     {200, ConfResp} = request(get, "/gateways/coap"),
     assert_confs(GwConf, ConfResp),
-    GwConf2 = emqx_map_lib:deep_merge(GwConf, #{heartbeat => <<"10s">>}),
+    GwConf2 = emqx_utils_maps:deep_merge(GwConf, #{heartbeat => <<"10s">>}),
     {204, _} = request(put, "/gateways/coap", maps:without([name, listeners], GwConf2)),
     {200, ConfResp2} = request(get, "/gateways/coap"),
     assert_confs(GwConf2, ConfResp2),
@@ -244,7 +244,7 @@ t_gateway_lwm2m(_) ->
     {204, _} = request(put, "/gateways/lwm2m", GwConf),
     {200, ConfResp} = request(get, "/gateways/lwm2m"),
     assert_confs(GwConf, ConfResp),
-    GwConf2 = emqx_map_lib:deep_merge(GwConf, #{qmode_time_window => <<"10s">>}),
+    GwConf2 = emqx_utils_maps:deep_merge(GwConf, #{qmode_time_window => <<"10s">>}),
     {204, _} = request(put, "/gateways/lwm2m", maps:without([name, listeners], GwConf2)),
     {200, ConfResp2} = request(get, "/gateways/lwm2m"),
     assert_confs(GwConf2, ConfResp2),
@@ -264,7 +264,7 @@ t_gateway_exproto(_) ->
     {204, _} = request(put, "/gateways/exproto", GwConf),
     {200, ConfResp} = request(get, "/gateways/exproto"),
     assert_confs(GwConf, ConfResp),
-    GwConf2 = emqx_map_lib:deep_merge(GwConf, #{server => #{bind => <<"9200">>}}),
+    GwConf2 = emqx_utils_maps:deep_merge(GwConf, #{server => #{bind => <<"9200">>}}),
     {204, _} = request(put, "/gateways/exproto", maps:without([name, listeners], GwConf2)),
     {200, ConfResp2} = request(get, "/gateways/exproto"),
     assert_confs(GwConf2, ConfResp2),
@@ -293,7 +293,7 @@ t_gateway_exproto_with_ssl(_) ->
     {204, _} = request(put, "/gateways/exproto", GwConf),
     {200, ConfResp} = request(get, "/gateways/exproto"),
     assert_confs(GwConf, ConfResp),
-    GwConf2 = emqx_map_lib:deep_merge(GwConf, #{
+    GwConf2 = emqx_utils_maps:deep_merge(GwConf, #{
         server => #{
             bind => <<"9200">>,
             ssl_options => SslCliOpts
diff --git a/apps/emqx_gateway/test/emqx_gateway_authn_SUITE.erl b/apps/emqx_gateway/test/emqx_gateway_authn_SUITE.erl
index 1ab36f7b8..149e6acd6 100644
--- a/apps/emqx_gateway/test/emqx_gateway_authn_SUITE.erl
+++ b/apps/emqx_gateway/test/emqx_gateway_authn_SUITE.erl
@@ -282,7 +282,7 @@ t_case_exproto(_) ->
 
 disable_authn(GwName, Type, Name) ->
     RawCfg = emqx_conf:get_raw([gateway, GwName], #{}),
-    ListenerCfg = emqx_map_lib:deep_get(
+    ListenerCfg = emqx_utils_maps:deep_get(
         [<<"listeners">>, atom_to_binary(Type), atom_to_binary(Name)], RawCfg
     ),
     {ok, _} = emqx_gateway_conf:update_listener(GwName, {Type, Name}, ListenerCfg#{
diff --git a/apps/emqx_gateway/test/emqx_gateway_conf_SUITE.erl b/apps/emqx_gateway/test/emqx_gateway_conf_SUITE.erl
index 33c307770..1e947e793 100644
--- a/apps/emqx_gateway/test/emqx_gateway_conf_SUITE.erl
+++ b/apps/emqx_gateway/test/emqx_gateway_conf_SUITE.erl
@@ -413,7 +413,7 @@ t_load_gateway_with_certs_content(_) ->
     ),
     {ok, _} = emqx_gateway_conf:load_gateway(<<"stomp">>, StompConf),
     assert_confs(StompConf, emqx:get_raw_config([gateway, stomp])),
-    SslConf = emqx_map_lib:deep_get(
+    SslConf = emqx_utils_maps:deep_get(
         [<<"listeners">>, <<"ssl">>, <<"default">>, <<"ssl_options">>],
         emqx:get_raw_config([gateway, stomp])
     ),
@@ -436,7 +436,7 @@ t_load_gateway_with_certs_content(_) ->
 %                 ),
 %    {ok, _} = emqx_gateway_conf:load_gateway(<<"stomp">>, StompConf),
 %    assert_confs(StompConf, emqx:get_raw_config([gateway, stomp])),
-%    SslConf = emqx_map_lib:deep_get(
+%    SslConf = emqx_utils_maps:deep_get(
 %                [<<"listeners">>, <<"ssl">>, <<"default">>, <<"ssl_options">>],
 %                emqx:get_raw_config([gateway, stomp])
 %               ),
@@ -471,7 +471,7 @@ t_add_listener_with_certs_content(_) ->
         emqx:get_raw_config([gateway, stomp])
     ),
 
-    SslConf = emqx_map_lib:deep_get(
+    SslConf = emqx_utils_maps:deep_get(
         [<<"listeners">>, <<"ssl">>, <<"default">>, <<"ssl_options">>],
         emqx:get_raw_config([gateway, stomp])
     ),
diff --git a/apps/emqx_gateway/test/emqx_gateway_test_utils.erl b/apps/emqx_gateway/test/emqx_gateway_test_utils.erl
index 6d80b63d8..bb378ef10 100644
--- a/apps/emqx_gateway/test/emqx_gateway_test_utils.erl
+++ b/apps/emqx_gateway/test/emqx_gateway_test_utils.erl
@@ -159,7 +159,7 @@ do_request(Mth, Req) ->
                     <<>> ->
                         #{};
                     _ ->
-                        emqx_map_lib:unsafe_atom_key_map(
+                        emqx_utils_maps:unsafe_atom_key_map(
                             emqx_utils_json:decode(Resp, [return_maps])
                         )
                 end,
diff --git a/apps/emqx_gateway_exproto/src/emqx_gateway_exproto.erl b/apps/emqx_gateway_exproto/src/emqx_gateway_exproto.erl
index 7860f1220..ff105b931 100644
--- a/apps/emqx_gateway_exproto/src/emqx_gateway_exproto.erl
+++ b/apps/emqx_gateway_exproto/src/emqx_gateway_exproto.erl
@@ -149,7 +149,7 @@ start_grpc_server(GwName, Options = #{bind := ListenOn}) ->
         }
     },
     SvrOptions =
-        case emqx_map_lib:deep_get([ssl, enable], Options, false) of
+        case emqx_utils_maps:deep_get([ssl, enable], Options, false) of
             false ->
                 [];
             true ->
@@ -201,7 +201,7 @@ start_grpc_client_channel(GwName, Options = #{address := Address}) ->
                     }}
                 )
         end,
-    case emqx_map_lib:deep_get([ssl, enable], Options, false) of
+    case emqx_utils_maps:deep_get([ssl, enable], Options, false) of
         false ->
             SvrAddr = compose_http_uri(http, Host, Port),
             grpc_client_sup:create_channel_pool(GwName, SvrAddr, #{});
diff --git a/apps/emqx_management/src/emqx_mgmt_api_clients.erl b/apps/emqx_management/src/emqx_mgmt_api_clients.erl
index cd4829342..681c851bf 100644
--- a/apps/emqx_management/src/emqx_mgmt_api_clients.erl
+++ b/apps/emqx_management/src/emqx_mgmt_api_clients.erl
@@ -860,8 +860,8 @@ format_channel_info(ChannInfo = {_, _ClientInfo, _ClientStats}) ->
 
 format_channel_info(WhichNode, {_, ClientInfo0, ClientStats}) ->
     Node = maps:get(node, ClientInfo0, WhichNode),
-    ClientInfo1 = emqx_map_lib:deep_remove([conninfo, clientid], ClientInfo0),
-    ClientInfo2 = emqx_map_lib:deep_remove([conninfo, username], ClientInfo1),
+    ClientInfo1 = emqx_utils_maps:deep_remove([conninfo, clientid], ClientInfo0),
+    ClientInfo2 = emqx_utils_maps:deep_remove([conninfo, username], ClientInfo1),
     StatsMap = maps:without(
         [memory, next_pkt_id, total_heap_size],
         maps:from_list(ClientStats)
@@ -958,4 +958,4 @@ format_authz_cache({{PubSub, Topic}, {AuthzResult, Timestamp}}) ->
 
 to_topic_info(Data) ->
     M = maps:with([<<"topic">>, <<"qos">>, <<"nl">>, <<"rap">>, <<"rh">>], Data),
-    emqx_map_lib:safe_atom_key_map(M).
+    emqx_utils_maps:safe_atom_key_map(M).
diff --git a/apps/emqx_management/src/emqx_mgmt_api_configs.erl b/apps/emqx_management/src/emqx_mgmt_api_configs.erl
index 55cc50597..b37a47be6 100644
--- a/apps/emqx_management/src/emqx_mgmt_api_configs.erl
+++ b/apps/emqx_management/src/emqx_mgmt_api_configs.erl
@@ -215,7 +215,7 @@ fields(Field) ->
 %% HTTP API Callbacks
 config(get, _Params, Req) ->
     Path = conf_path(Req),
-    {ok, Conf} = emqx_map_lib:deep_find(Path, get_full_config()),
+    {ok, Conf} = emqx_utils_maps:deep_find(Path, get_full_config()),
     {200, Conf};
 config(put, #{body := Body}, Req) ->
     Path = conf_path(Req),
@@ -349,7 +349,7 @@ gen_schema(_Conf) ->
     #{type => string}.
 
 with_default_value(Type, Value) ->
-    Type#{example => emqx_map_lib:binary_string(Value)}.
+    Type#{example => emqx_utils_maps:binary_string(Value)}.
 
 global_zone_roots() ->
     lists:map(fun({K, _}) -> K end, global_zone_schema()).
diff --git a/apps/emqx_management/src/emqx_mgmt_api_listeners.erl b/apps/emqx_management/src/emqx_mgmt_api_listeners.erl
index c126cfe19..d7f3ff321 100644
--- a/apps/emqx_management/src/emqx_mgmt_api_listeners.erl
+++ b/apps/emqx_management/src/emqx_mgmt_api_listeners.erl
@@ -390,7 +390,7 @@ crud_listeners_by_id(put, #{bindings := #{id := Id}, body := Body0}) ->
                 undefined ->
                     {404, #{code => 'BAD_LISTENER_ID', message => ?LISTENER_NOT_FOUND}};
                 PrevConf ->
-                    MergeConfT = emqx_map_lib:deep_merge(PrevConf, Conf),
+                    MergeConfT = emqx_utils_maps:deep_merge(PrevConf, Conf),
                     MergeConf = emqx_listeners:ensure_override_limiter_conf(MergeConfT, Conf),
                     case update(Path, MergeConf) of
                         {ok, #{raw_config := _RawConf}} ->
diff --git a/apps/emqx_management/test/emqx_mgmt_api_configs_SUITE.erl b/apps/emqx_management/test/emqx_mgmt_api_configs_SUITE.erl
index cc200a4d5..e5704b817 100644
--- a/apps/emqx_management/test/emqx_mgmt_api_configs_SUITE.erl
+++ b/apps/emqx_management/test/emqx_mgmt_api_configs_SUITE.erl
@@ -55,7 +55,7 @@ t_update(_Config) ->
     %% update ok
     {ok, SysMon} = get_config(<<"sysmon">>),
     #{<<"vm">> := #{<<"busy_port">> := BusyPort}} = SysMon,
-    NewSysMon = emqx_map_lib:deep_put([<<"vm">>, <<"busy_port">>], SysMon, not BusyPort),
+    NewSysMon = emqx_utils_maps:deep_put([<<"vm">>, <<"busy_port">>], SysMon, not BusyPort),
     {ok, #{}} = update_config(<<"sysmon">>, NewSysMon),
     {ok, SysMon1} = get_config(<<"sysmon">>),
     #{<<"vm">> := #{<<"busy_port">> := BusyPort1}} = SysMon1,
@@ -63,7 +63,7 @@ t_update(_Config) ->
     assert_busy_port(BusyPort1),
 
     %% update failed
-    ErrorSysMon = emqx_map_lib:deep_put([<<"vm">>, <<"busy_port">>], SysMon, "123"),
+    ErrorSysMon = emqx_utils_maps:deep_put([<<"vm">>, <<"busy_port">>], SysMon, "123"),
     ?assertMatch(
         {error, {"HTTP/1.1", 400, _}},
         update_config(<<"sysmon">>, ErrorSysMon)
@@ -78,7 +78,7 @@ t_update(_Config) ->
     assert_busy_port(true),
 
     %% reset no_default_value config
-    NewSysMon1 = emqx_map_lib:deep_put([<<"vm">>, <<"busy_port">>], SysMon, false),
+    NewSysMon1 = emqx_utils_maps:deep_put([<<"vm">>, <<"busy_port">>], SysMon, false),
     {ok, #{}} = update_config(<<"sysmon">>, NewSysMon1),
     ?assertMatch({error, {"HTTP/1.1", 400, _}}, reset_config(<<"sysmon">>, "")),
     {ok, SysMon4} = get_config(<<"sysmon">>),
@@ -94,27 +94,33 @@ t_log(_Config) ->
     {ok, Log} = get_config("log"),
     File = "log/emqx-test.log",
     %% update handler
-    Log1 = emqx_map_lib:deep_put([<<"file_handlers">>, <<"default">>, <<"enable">>], Log, true),
-    Log2 = emqx_map_lib:deep_put([<<"file_handlers">>, <<"default">>, <<"file">>], Log1, File),
+    Log1 = emqx_utils_maps:deep_put([<<"file_handlers">>, <<"default">>, <<"enable">>], Log, true),
+    Log2 = emqx_utils_maps:deep_put([<<"file_handlers">>, <<"default">>, <<"file">>], Log1, File),
     {ok, #{}} = update_config(<<"log">>, Log2),
     {ok, Log3} = logger:get_handler_config(default),
     ?assertMatch(#{config := #{file := File}}, Log3),
-    ErrLog1 = emqx_map_lib:deep_put([<<"file_handlers">>, <<"default">>, <<"enable">>], Log, 1),
+    ErrLog1 = emqx_utils_maps:deep_put([<<"file_handlers">>, <<"default">>, <<"enable">>], Log, 1),
     ?assertMatch({error, {"HTTP/1.1", 400, _}}, update_config(<<"log">>, ErrLog1)),
-    ErrLog2 = emqx_map_lib:deep_put([<<"file_handlers">>, <<"default">>, <<"enabfe">>], Log, true),
+    ErrLog2 = emqx_utils_maps:deep_put(
+        [<<"file_handlers">>, <<"default">>, <<"enabfe">>], Log, true
+    ),
     ?assertMatch({error, {"HTTP/1.1", 400, _}}, update_config(<<"log">>, ErrLog2)),
 
     %% add new handler
     File1 = "log/emqx-test1.log",
-    Handler = emqx_map_lib:deep_get([<<"file_handlers">>, <<"default">>], Log2),
-    NewLog1 = emqx_map_lib:deep_put([<<"file_handlers">>, <<"new">>], Log2, Handler),
-    NewLog2 = emqx_map_lib:deep_put([<<"file_handlers">>, <<"new">>, <<"file">>], NewLog1, File1),
+    Handler = emqx_utils_maps:deep_get([<<"file_handlers">>, <<"default">>], Log2),
+    NewLog1 = emqx_utils_maps:deep_put([<<"file_handlers">>, <<"new">>], Log2, Handler),
+    NewLog2 = emqx_utils_maps:deep_put(
+        [<<"file_handlers">>, <<"new">>, <<"file">>], NewLog1, File1
+    ),
     {ok, #{}} = update_config(<<"log">>, NewLog2),
     {ok, Log4} = logger:get_handler_config(new),
     ?assertMatch(#{config := #{file := File1}}, Log4),
 
     %% disable new handler
-    Disable = emqx_map_lib:deep_put([<<"file_handlers">>, <<"new">>, <<"enable">>], NewLog2, false),
+    Disable = emqx_utils_maps:deep_put(
+        [<<"file_handlers">>, <<"new">>, <<"enable">>], NewLog2, false
+    ),
     {ok, #{}} = update_config(<<"log">>, Disable),
     ?assertEqual({error, {not_found, new}}, logger:get_handler_config(new)),
     ok.
@@ -125,25 +131,25 @@ t_global_zone(_Config) ->
     ?assertEqual(lists:usort(ZonesKeys), lists:usort(maps:keys(Zones))),
     ?assertEqual(
         emqx_config:get_zone_conf(no_default, [mqtt, max_qos_allowed]),
-        emqx_map_lib:deep_get([<<"mqtt">>, <<"max_qos_allowed">>], Zones)
+        emqx_utils_maps:deep_get([<<"mqtt">>, <<"max_qos_allowed">>], Zones)
     ),
-    NewZones = emqx_map_lib:deep_put([<<"mqtt">>, <<"max_qos_allowed">>], Zones, 1),
+    NewZones = emqx_utils_maps:deep_put([<<"mqtt">>, <<"max_qos_allowed">>], Zones, 1),
     {ok, #{}} = update_global_zone(NewZones),
     ?assertEqual(1, emqx_config:get_zone_conf(no_default, [mqtt, max_qos_allowed])),
 
-    BadZones = emqx_map_lib:deep_put([<<"mqtt">>, <<"max_qos_allowed">>], Zones, 3),
+    BadZones = emqx_utils_maps:deep_put([<<"mqtt">>, <<"max_qos_allowed">>], Zones, 3),
     ?assertMatch({error, {"HTTP/1.1", 400, _}}, update_global_zone(BadZones)),
 
     %% Remove max_qos_allowed from raw config, but we still get default value(2).
     Mqtt0 = emqx_conf:get_raw([<<"mqtt">>]),
-    ?assertEqual(1, emqx_map_lib:deep_get([<<"max_qos_allowed">>], Mqtt0)),
+    ?assertEqual(1, emqx_utils_maps:deep_get([<<"max_qos_allowed">>], Mqtt0)),
     Mqtt1 = maps:remove(<<"max_qos_allowed">>, Mqtt0),
     ok = emqx_config:put_raw([<<"mqtt">>], Mqtt1),
     Mqtt2 = emqx_conf:get_raw([<<"mqtt">>]),
     ?assertNot(maps:is_key(<<"max_qos_allowed">>, Mqtt2), Mqtt2),
     {ok, #{<<"mqtt">> := Mqtt3}} = get_global_zone(),
     %% the default value is 2
-    ?assertEqual(2, emqx_map_lib:deep_get([<<"max_qos_allowed">>], Mqtt3)),
+    ?assertEqual(2, emqx_utils_maps:deep_get([<<"max_qos_allowed">>], Mqtt3)),
     ok = emqx_config:put_raw([<<"mqtt">>], Mqtt0),
     ok.
 
diff --git a/apps/emqx_management/test/emqx_mgmt_api_listeners_SUITE.erl b/apps/emqx_management/test/emqx_mgmt_api_listeners_SUITE.erl
index 90808d4be..62f689a84 100644
--- a/apps/emqx_management/test/emqx_mgmt_api_listeners_SUITE.erl
+++ b/apps/emqx_management/test/emqx_mgmt_api_listeners_SUITE.erl
@@ -193,10 +193,10 @@ t_clear_certs(Config) when is_list(Config) ->
     },
 
     %% create, make sure the cert files are created
-    NewConf = emqx_map_lib:deep_put(
+    NewConf = emqx_utils_maps:deep_put(
         [<<"ssl_options">>, <<"certfile">>], ConfTemp, cert_file("certfile")
     ),
-    NewConf2 = emqx_map_lib:deep_put(
+    NewConf2 = emqx_utils_maps:deep_put(
         [<<"ssl_options">>, <<"keyfile">>], NewConf, cert_file("keyfile")
     ),
 
@@ -205,7 +205,7 @@ t_clear_certs(Config) when is_list(Config) ->
     ?assertMatch({ok, [_, _]}, ListResult1),
 
     %% update
-    UpdateConf = emqx_map_lib:deep_put(
+    UpdateConf = emqx_utils_maps:deep_put(
         [<<"ssl_options">>, <<"keyfile">>], NewConf2, cert_file("keyfile2")
     ),
     _ = request(put, NewPath, [], UpdateConf),
diff --git a/apps/emqx_management/test/emqx_mgmt_api_nodes_SUITE.erl b/apps/emqx_management/test/emqx_mgmt_api_nodes_SUITE.erl
index 7e4ccc541..1f14d075e 100644
--- a/apps/emqx_management/test/emqx_mgmt_api_nodes_SUITE.erl
+++ b/apps/emqx_management/test/emqx_mgmt_api_nodes_SUITE.erl
@@ -34,8 +34,8 @@ init_per_testcase(t_log_path, Config) ->
     emqx_config_logger:add_handler(),
     Log = emqx_conf:get_raw([log], #{}),
     File = "log/emqx-test.log",
-    Log1 = emqx_map_lib:deep_put([<<"file_handlers">>, <<"default">>, <<"enable">>], Log, true),
-    Log2 = emqx_map_lib:deep_put([<<"file_handlers">>, <<"default">>, <<"file">>], Log1, File),
+    Log1 = emqx_utils_maps:deep_put([<<"file_handlers">>, <<"default">>, <<"enable">>], Log, true),
+    Log2 = emqx_utils_maps:deep_put([<<"file_handlers">>, <<"default">>, <<"file">>], Log1, File),
     {ok, #{}} = emqx_conf:update([log], Log2, #{rawconf_with_defaults => true}),
     Config;
 init_per_testcase(_, Config) ->
@@ -43,7 +43,7 @@ init_per_testcase(_, Config) ->
 
 end_per_testcase(t_log_path, Config) ->
     Log = emqx_conf:get_raw([log], #{}),
-    Log1 = emqx_map_lib:deep_put([<<"file_handlers">>, <<"default">>, <<"enable">>], Log, false),
+    Log1 = emqx_utils_maps:deep_put([<<"file_handlers">>, <<"default">>, <<"enable">>], Log, false),
     {ok, #{}} = emqx_conf:update([log], Log1, #{rawconf_with_defaults => true}),
     emqx_config_logger:remove_handler(),
     Config;
diff --git a/apps/emqx_modules/test/emqx_delayed_api_SUITE.erl b/apps/emqx_modules/test/emqx_delayed_api_SUITE.erl
index b2d854d22..4ae3dec88 100644
--- a/apps/emqx_modules/test/emqx_delayed_api_SUITE.erl
+++ b/apps/emqx_modules/test/emqx_delayed_api_SUITE.erl
@@ -230,7 +230,7 @@ t_large_payload(_) ->
 
 decode_json(Data) ->
     BinJson = emqx_utils_json:decode(Data, [return_maps]),
-    emqx_map_lib:unsafe_atom_key_map(BinJson).
+    emqx_utils_maps:unsafe_atom_key_map(BinJson).
 
 clear_all_record() ->
     ets:delete_all_objects(emqx_delayed).
diff --git a/apps/emqx_retainer/src/emqx_retainer_dispatcher.erl b/apps/emqx_retainer/src/emqx_retainer_dispatcher.erl
index 32cbba084..7b0a0dc2a 100644
--- a/apps/emqx_retainer/src/emqx_retainer_dispatcher.erl
+++ b/apps/emqx_retainer/src/emqx_retainer_dispatcher.erl
@@ -156,7 +156,7 @@ handle_cast({dispatch, Context, Pid, Topic}, #{limiter := Limiter} = State) ->
     {ok, Limiter2} = dispatch(Context, Pid, Topic, undefined, Limiter),
     {noreply, State#{limiter := Limiter2}};
 handle_cast({refresh_limiter, Conf}, State) ->
-    BucketCfg = emqx_map_lib:deep_get([flow_control, batch_deliver_limiter], Conf, undefined),
+    BucketCfg = emqx_utils_maps:deep_get([flow_control, batch_deliver_limiter], Conf, undefined),
     {ok, Limiter} = emqx_limiter_server:connect(?APP, internal, BucketCfg),
     {noreply, State#{limiter := Limiter}};
 handle_cast(Msg, State) ->
diff --git a/apps/emqx_retainer/test/emqx_retainer_api_SUITE.erl b/apps/emqx_retainer/test/emqx_retainer_api_SUITE.erl
index 2b92b3f59..61eee0510 100644
--- a/apps/emqx_retainer/test/emqx_retainer_api_SUITE.erl
+++ b/apps/emqx_retainer/test/emqx_retainer_api_SUITE.erl
@@ -257,7 +257,7 @@ t_change_storage_type(_Config) ->
     #{data := Msgs0, meta := _} = decode_json(MsgsJson0),
     ?assertEqual(1, length(Msgs0)),
 
-    ChangedConf = emqx_map_lib:deep_merge(
+    ChangedConf = emqx_utils_maps:deep_merge(
         RawConf,
         #{
             <<"backend">> =>
@@ -312,7 +312,7 @@ t_change_storage_type(_Config) ->
 %%--------------------------------------------------------------------
 decode_json(Data) ->
     BinJson = emqx_utils_json:decode(Data, [return_maps]),
-    emqx_map_lib:unsafe_atom_key_map(BinJson).
+    emqx_utils_maps:unsafe_atom_key_map(BinJson).
 
 %%--------------------------------------------------------------------
 %% Internal funcs
diff --git a/apps/emqx_rule_engine/src/emqx_rule_engine.erl b/apps/emqx_rule_engine/src/emqx_rule_engine.erl
index 44b49a75b..ada52c5aa 100644
--- a/apps/emqx_rule_engine/src/emqx_rule_engine.erl
+++ b/apps/emqx_rule_engine/src/emqx_rule_engine.erl
@@ -115,7 +115,7 @@ start_link() ->
 %%------------------------------------------------------------------------------
 post_config_update(_, _Req, NewRules, OldRules, _AppEnvs) ->
     #{added := Added, removed := Removed, changed := Updated} =
-        emqx_map_lib:diff_maps(NewRules, OldRules),
+        emqx_utils_maps:diff_maps(NewRules, OldRules),
     maps_foreach(
         fun({Id, {_Old, New}}) ->
             {ok, _} = update_rule(New#{id => bin(Id)})
diff --git a/apps/emqx_slow_subs/test/emqx_slow_subs_api_SUITE.erl b/apps/emqx_slow_subs/test/emqx_slow_subs_api_SUITE.erl
index ae74348e0..5196868c7 100644
--- a/apps/emqx_slow_subs/test/emqx_slow_subs_api_SUITE.erl
+++ b/apps/emqx_slow_subs/test/emqx_slow_subs_api_SUITE.erl
@@ -166,7 +166,7 @@ t_settting(_) ->
 
 decode_json(Data) ->
     BinJosn = emqx_utils_json:decode(Data, [return_maps]),
-    emqx_map_lib:unsafe_atom_key_map(BinJosn).
+    emqx_utils_maps:unsafe_atom_key_map(BinJosn).
 
 request_api(Method, Url, Auth) ->
     request_api(Method, Url, [], Auth, []).
diff --git a/apps/emqx/src/emqx_map_lib.erl b/apps/emqx_utils/src/emqx_utils_maps.erl
similarity index 99%
rename from apps/emqx/src/emqx_map_lib.erl
rename to apps/emqx_utils/src/emqx_utils_maps.erl
index 631c3914d..d64075511 100644
--- a/apps/emqx/src/emqx_map_lib.erl
+++ b/apps/emqx_utils/src/emqx_utils_maps.erl
@@ -13,7 +13,7 @@
 %% See the License for the specific language governing permissions and
 %% limitations under the License.
 %%--------------------------------------------------------------------
--module(emqx_map_lib).
+-module(emqx_utils_maps).
 
 -export([
     deep_get/2,
@@ -332,7 +332,7 @@ deep_filter(M, F) when is_map(M) ->
 
 if_only_to_toggle_enable(OldConf, Conf) ->
     #{added := Added, removed := Removed, changed := Updated} =
-        emqx_map_lib:diff_maps(OldConf, Conf),
+        emqx_utils_maps:diff_maps(OldConf, Conf),
     case {Added, Removed, Updated} of
         {Added, Removed, #{enable := _} = Updated} when
             map_size(Added) =:= 0,
diff --git a/apps/emqx/test/emqx_map_lib_tests.erl b/apps/emqx_utils/test/emqx_utils_maps_tests.erl
similarity index 76%
rename from apps/emqx/test/emqx_map_lib_tests.erl
rename to apps/emqx_utils/test/emqx_utils_maps_tests.erl
index 894811d7c..506851f0a 100644
--- a/apps/emqx/test/emqx_map_lib_tests.erl
+++ b/apps/emqx_utils/test/emqx_utils_maps_tests.erl
@@ -14,7 +14,7 @@
 %% limitations under the License.
 %%--------------------------------------------------------------------
 
--module(emqx_map_lib_tests).
+-module(emqx_utils_maps_tests).
 -include_lib("eunit/include/eunit.hrl").
 
 best_effort_recursive_sum_test_() ->
@@ -22,21 +22,21 @@ best_effort_recursive_sum_test_() ->
     [
         ?_assertEqual(
             #{foo => 3},
-            emqx_map_lib:best_effort_recursive_sum(#{foo => 1}, #{foo => 2}, DummyLogger)
+            emqx_utils_maps:best_effort_recursive_sum(#{foo => 1}, #{foo => 2}, DummyLogger)
         ),
         ?_assertEqual(
             #{foo => 3, bar => 6.0},
-            emqx_map_lib:best_effort_recursive_sum(
+            emqx_utils_maps:best_effort_recursive_sum(
                 #{foo => 1, bar => 2.0}, #{foo => 2, bar => 4.0}, DummyLogger
             )
         ),
         ?_assertEqual(
             #{foo => 1, bar => 2},
-            emqx_map_lib:best_effort_recursive_sum(#{foo => 1}, #{bar => 2}, DummyLogger)
+            emqx_utils_maps:best_effort_recursive_sum(#{foo => 1}, #{bar => 2}, DummyLogger)
         ),
         ?_assertEqual(
             #{foo => #{bar => 42}},
-            emqx_map_lib:best_effort_recursive_sum(
+            emqx_utils_maps:best_effort_recursive_sum(
                 #{foo => #{bar => 2}}, #{foo => #{bar => 40}}, DummyLogger
             )
         ),
@@ -45,7 +45,9 @@ best_effort_recursive_sum_test_() ->
             Logger = fun(What) -> Self ! {log, What} end,
             ?assertEqual(
                 #{foo => 1, bar => 2},
-                emqx_map_lib:best_effort_recursive_sum(#{foo => 1, bar => 2}, #{bar => bar}, Logger)
+                emqx_utils_maps:best_effort_recursive_sum(
+                    #{foo => 1, bar => 2}, #{bar => bar}, Logger
+                )
             ),
             receive
                 {log, Log} ->
@@ -55,55 +57,55 @@ best_effort_recursive_sum_test_() ->
         end,
         ?_assertEqual(
             #{},
-            emqx_map_lib:best_effort_recursive_sum(
+            emqx_utils_maps:best_effort_recursive_sum(
                 #{foo => foo}, #{foo => bar}, DummyLogger
             )
         ),
         ?_assertEqual(
             #{foo => 1},
-            emqx_map_lib:best_effort_recursive_sum(
+            emqx_utils_maps:best_effort_recursive_sum(
                 #{foo => 1}, #{foo => bar}, DummyLogger
             )
         ),
         ?_assertEqual(
             #{foo => 1},
-            emqx_map_lib:best_effort_recursive_sum(
+            emqx_utils_maps:best_effort_recursive_sum(
                 #{foo => bar}, #{foo => 1}, DummyLogger
             )
         ),
         ?_assertEqual(
             #{foo => #{bar => 1}},
-            emqx_map_lib:best_effort_recursive_sum(
+            emqx_utils_maps:best_effort_recursive_sum(
                 #{foo => #{bar => 1}}, #{foo => 1}, DummyLogger
             )
         ),
         ?_assertEqual(
             #{foo => #{bar => 1}},
-            emqx_map_lib:best_effort_recursive_sum(
+            emqx_utils_maps:best_effort_recursive_sum(
                 #{foo => 1}, #{foo => #{bar => 1}}, DummyLogger
             )
         ),
         ?_assertEqual(
             #{foo => #{bar => 1}},
-            emqx_map_lib:best_effort_recursive_sum(
+            emqx_utils_maps:best_effort_recursive_sum(
                 #{foo => 1, bar => ignored}, #{foo => #{bar => 1}}, DummyLogger
             )
         ),
         ?_assertEqual(
             #{foo => #{bar => 2}, bar => #{foo => 1}},
-            emqx_map_lib:best_effort_recursive_sum(
+            emqx_utils_maps:best_effort_recursive_sum(
                 #{foo => 1, bar => #{foo => 1}}, #{foo => #{bar => 2}, bar => 2}, DummyLogger
             )
         ),
         ?_assertEqual(
             #{foo => #{bar => 2}, bar => #{foo => 1}},
-            emqx_map_lib:best_effort_recursive_sum(
+            emqx_utils_maps:best_effort_recursive_sum(
                 #{foo => #{bar => 2}, bar => 2}, #{foo => 1, bar => #{foo => 1}}, DummyLogger
             )
         ),
         ?_assertEqual(
             #{foo => #{bar => #{}}},
-            emqx_map_lib:best_effort_recursive_sum(
+            emqx_utils_maps:best_effort_recursive_sum(
                 #{foo => #{bar => #{foo => []}}}, #{foo => 1}, DummyLogger
             )
         )
diff --git a/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_cassa_SUITE.erl b/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_cassa_SUITE.erl
index f37d7fb6a..3e442a926 100644
--- a/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_cassa_SUITE.erl
+++ b/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_cassa_SUITE.erl
@@ -261,7 +261,7 @@ create_bridge(Config, Overrides) ->
     BridgeType = ?config(cassa_bridge_type, Config),
     Name = ?config(cassa_name, Config),
     BridgeConfig0 = ?config(cassa_config, Config),
-    BridgeConfig = emqx_map_lib:deep_merge(BridgeConfig0, Overrides),
+    BridgeConfig = emqx_utils_maps:deep_merge(BridgeConfig0, Overrides),
     emqx_bridge:create(BridgeType, Name, BridgeConfig).
 
 delete_bridge(Config) ->
diff --git a/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_dynamo_SUITE.erl b/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_dynamo_SUITE.erl
index 133ef0430..5ebd9a89d 100644
--- a/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_dynamo_SUITE.erl
+++ b/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_dynamo_SUITE.erl
@@ -193,7 +193,7 @@ create_bridge(Config, Overrides) ->
     BridgeType = ?config(dynamo_bridge_type, Config),
     Name = ?config(dynamo_name, Config),
     DynamoConfig0 = ?config(dynamo_config, Config),
-    DynamoConfig = emqx_map_lib:deep_merge(DynamoConfig0, Overrides),
+    DynamoConfig = emqx_utils_maps:deep_merge(DynamoConfig0, Overrides),
     emqx_bridge:create(BridgeType, Name, DynamoConfig).
 
 delete_all_bridges() ->
diff --git a/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_gcp_pubsub_SUITE.erl b/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_gcp_pubsub_SUITE.erl
index 49bc444c6..a785924d4 100644
--- a/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_gcp_pubsub_SUITE.erl
+++ b/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_gcp_pubsub_SUITE.erl
@@ -181,7 +181,7 @@ create_bridge(Config, GCPPubSubConfigOverrides) ->
     TypeBin = ?BRIDGE_TYPE_BIN,
     Name = ?config(gcp_pubsub_name, Config),
     GCPPubSubConfig0 = ?config(gcp_pubsub_config, Config),
-    GCPPubSubConfig = emqx_map_lib:deep_merge(GCPPubSubConfig0, GCPPubSubConfigOverrides),
+    GCPPubSubConfig = emqx_utils_maps:deep_merge(GCPPubSubConfig0, GCPPubSubConfigOverrides),
     ct:pal("creating bridge: ~p", [GCPPubSubConfig]),
     Res = emqx_bridge:create(TypeBin, Name, GCPPubSubConfig),
     ct:pal("bridge creation result: ~p", [Res]),
@@ -194,7 +194,7 @@ create_bridge_http(Config, GCPPubSubConfigOverrides) ->
     TypeBin = ?BRIDGE_TYPE_BIN,
     Name = ?config(gcp_pubsub_name, Config),
     GCPPubSubConfig0 = ?config(gcp_pubsub_config, Config),
-    GCPPubSubConfig = emqx_map_lib:deep_merge(GCPPubSubConfig0, GCPPubSubConfigOverrides),
+    GCPPubSubConfig = emqx_utils_maps:deep_merge(GCPPubSubConfig0, GCPPubSubConfigOverrides),
     Params = GCPPubSubConfig#{<<"type">> => TypeBin, <<"name">> => Name},
     Path = emqx_mgmt_api_test_util:api_path(["bridges"]),
     AuthHeader = emqx_mgmt_api_test_util:auth_header_(),
diff --git a/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_influxdb_SUITE.erl b/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_influxdb_SUITE.erl
index 4891d5d9b..3def35920 100644
--- a/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_influxdb_SUITE.erl
+++ b/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_influxdb_SUITE.erl
@@ -354,7 +354,7 @@ create_bridge(Config, Overrides) ->
     Type = influxdb_type_bin(?config(influxdb_type, Config)),
     Name = ?config(influxdb_name, Config),
     InfluxDBConfig0 = ?config(influxdb_config, Config),
-    InfluxDBConfig = emqx_map_lib:deep_merge(InfluxDBConfig0, Overrides),
+    InfluxDBConfig = emqx_utils_maps:deep_merge(InfluxDBConfig0, Overrides),
     emqx_bridge:create(Type, Name, InfluxDBConfig).
 
 delete_bridge(Config) ->
@@ -390,7 +390,7 @@ create_rule_and_action_http(Config, Overrides) ->
         sql => <<"SELECT * FROM \"t/topic\"">>,
         actions => [BridgeId]
     },
-    Params = emqx_map_lib:deep_merge(Params0, Overrides),
+    Params = emqx_utils_maps:deep_merge(Params0, Overrides),
     Path = emqx_mgmt_api_test_util:api_path(["rules"]),
     AuthHeader = emqx_mgmt_api_test_util:auth_header_(),
     case emqx_mgmt_api_test_util:request_api(post, Path, "", AuthHeader, Params) of
diff --git a/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_mongodb_SUITE.erl b/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_mongodb_SUITE.erl
index 2d4ee9222..0959e3c78 100644
--- a/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_mongodb_SUITE.erl
+++ b/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_mongodb_SUITE.erl
@@ -245,7 +245,7 @@ create_bridge(Config, Overrides) ->
     Type = mongo_type_bin(?config(mongo_type, Config)),
     Name = ?config(mongo_name, Config),
     MongoConfig0 = ?config(mongo_config, Config),
-    MongoConfig = emqx_map_lib:deep_merge(MongoConfig0, Overrides),
+    MongoConfig = emqx_utils_maps:deep_merge(MongoConfig0, Overrides),
     ct:pal("creating ~p bridge with config:\n ~p", [Type, MongoConfig]),
     emqx_bridge:create(Type, Name, MongoConfig).
 
diff --git a/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_pgsql_SUITE.erl b/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_pgsql_SUITE.erl
index 8f0b9ad9c..d76149b16 100644
--- a/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_pgsql_SUITE.erl
+++ b/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_pgsql_SUITE.erl
@@ -229,7 +229,7 @@ create_bridge(Config, Overrides) ->
     BridgeType = ?config(pgsql_bridge_type, Config),
     Name = ?config(pgsql_name, Config),
     PGConfig0 = ?config(pgsql_config, Config),
-    PGConfig = emqx_map_lib:deep_merge(PGConfig0, Overrides),
+    PGConfig = emqx_utils_maps:deep_merge(PGConfig0, Overrides),
     emqx_bridge:create(BridgeType, Name, PGConfig).
 
 delete_bridge(Config) ->
diff --git a/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_tdengine_SUITE.erl b/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_tdengine_SUITE.erl
index 8e058f2f1..36ed10f38 100644
--- a/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_tdengine_SUITE.erl
+++ b/lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_tdengine_SUITE.erl
@@ -207,7 +207,7 @@ create_bridge(Config, Overrides) ->
     BridgeType = ?config(tdengine_bridge_type, Config),
     Name = ?config(tdengine_name, Config),
     TDConfig0 = ?config(tdengine_config, Config),
-    TDConfig = emqx_map_lib:deep_merge(TDConfig0, Overrides),
+    TDConfig = emqx_utils_maps:deep_merge(TDConfig0, Overrides),
     emqx_bridge:create(BridgeType, Name, TDConfig).
 
 delete_bridge(Config) ->
diff --git a/lib-ee/emqx_ee_schema_registry/src/emqx_ee_schema_registry.erl b/lib-ee/emqx_ee_schema_registry/src/emqx_ee_schema_registry.erl
index 3569b246e..4c00903d5 100644
--- a/lib-ee/emqx_ee_schema_registry/src/emqx_ee_schema_registry.erl
+++ b/lib-ee/emqx_ee_schema_registry/src/emqx_ee_schema_registry.erl
@@ -67,7 +67,7 @@ get_schema(SchemaName) ->
 
 -spec add_schema(schema_name(), schema()) -> ok | {error, term()}.
 add_schema(Name, Schema) ->
-    RawSchema = emqx_map_lib:binary_key_map(Schema),
+    RawSchema = emqx_utils_maps:binary_key_map(Schema),
     Res = emqx_conf:update(
         [?CONF_KEY_ROOT, schemas, Name],
         RawSchema,
@@ -113,7 +113,7 @@ post_config_update(
         added := Added,
         changed := Changed0,
         removed := Removed
-    } = emqx_map_lib:diff_maps(NewSchemas, OldSchemas),
+    } = emqx_utils_maps:diff_maps(NewSchemas, OldSchemas),
     Changed = maps:map(fun(_N, {_Old, New}) -> New end, Changed0),
     RemovedNames = maps:keys(Removed),
     case RemovedNames of
diff --git a/lib-ee/emqx_ee_schema_registry/test/emqx_ee_schema_registry_SUITE.erl b/lib-ee/emqx_ee_schema_registry/test/emqx_ee_schema_registry_SUITE.erl
index 325d3d499..5bfba34b3 100644
--- a/lib-ee/emqx_ee_schema_registry/test/emqx_ee_schema_registry_SUITE.erl
+++ b/lib-ee/emqx_ee_schema_registry/test/emqx_ee_schema_registry_SUITE.erl
@@ -344,7 +344,7 @@ t_decode(Config) ->
 
 t_fail_rollback(Config) ->
     SerdeType = ?config(serde_type, Config),
-    OkSchema = emqx_map_lib:binary_key_map(schema_params(SerdeType)),
+    OkSchema = emqx_utils_maps:binary_key_map(schema_params(SerdeType)),
     BrokenSchema = OkSchema#{<<"source">> := <<"{}">>},
     %% hopefully, for this small map, the key order is used.
     Serdes = #{