diff --git a/.gitignore b/.gitignore
index 741d6ed..3983cd5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,4 +8,6 @@ source/python/dist
 source/rust/polaris-specification/target
 venv
 debug/
-target/
\ No newline at end of file
+target/
+# Maven ignore
+.flattened-pom.xml
\ No newline at end of file
diff --git a/api/v1/fault_tolerance/circuitbreaker.proto b/api/v1/fault_tolerance/circuitbreaker.proto
index b1d23bd..4852142 100644
--- a/api/v1/fault_tolerance/circuitbreaker.proto
+++ b/api/v1/fault_tolerance/circuitbreaker.proto
@@ -286,7 +286,7 @@ message CircuitBreakerRule {
   // priority rules priority
   uint32 priority = 30 [ json_name = "priority" ];
   // 熔断规则标签数据
-  map<string, string> metadata = 31;
+  map<string, string> metadata = 31 [ json_name = "metadata" ];
 }
 
 // the condition to judge an input invocation as an error
@@ -336,4 +336,21 @@ message BlockConfig {
   repeated ErrorCondition error_conditions = 3 [ json_name = "error_conditions" ];
   // trigger condition to trigger circuitbreaking
   repeated TriggerCondition trigger_conditions = 4 [ json_name = "trigger_conditions" ];
+}
+
+// fallback config
+message FallbackConfig {
+  bool enable = 1;
+  FallbackResponse response = 2;
+}
+
+// fallback response
+message FallbackResponse {
+  int32 code = 1;
+  message MessageHeader {
+    string key = 1;
+    string value = 2;
+  }
+  repeated MessageHeader headers = 2;
+  string body = 3;
 }
\ No newline at end of file
diff --git a/api/v1/model/model.proto b/api/v1/model/model.proto
index d31ab78..b24d854 100644
--- a/api/v1/model/model.proto
+++ b/api/v1/model/model.proto
@@ -68,21 +68,4 @@ message API {
   string method = 2 [ json_name = "method" ];
   // API的路径，支持多种匹配方式
   MatchString path = 3 [ json_name = "path" ];
-}
-
-// fallback config
-message FallbackConfig {
-  bool enable = 1;
-  FallbackResponse response = 2;
-}
-
-// fallback response
-message FallbackResponse {
-  int32 code = 1;
-  message MessageHeader {
-    string key = 1;
-    string value = 2;
-  }
-  repeated MessageHeader headers = 2;
-  string body = 3;
 }
\ No newline at end of file
diff --git a/api/v1/traffic_manage/lossless.proto b/api/v1/traffic_manage/lossless.proto
index 92d793e..624c10b 100644
--- a/api/v1/traffic_manage/lossless.proto
+++ b/api/v1/traffic_manage/lossless.proto
@@ -18,20 +18,18 @@ message LosslessRule {
   string service = 2 [ json_name = "service" ];
   // namespace for rule belongs to
   string namespace = 3 [ json_name = "namespace" ];
-  // match rules by labels
-  map<string, MatchString> labels = 4 [ json_name = "labels" ];
   // revision routing version
-  string revision = 5 [ json_name = "revision" ];
+  string revision = 4 [ json_name = "revision" ];
   // ctime create time of the rules
-  string ctime = 6 [ json_name = "ctime" ];
+  string ctime = 5 [ json_name = "ctime" ];
   // mtime modify time of the rules
-  string mtime = 7 [ json_name = "mtime" ];
+  string mtime = 6 [ json_name = "mtime" ];
   // configuration for lossless online
-  LosslessOnline losslessOnline = 8 [ json_name = "lossless_online" ];
+  LosslessOnline losslessOnline = 7 [ json_name = "lossless_online" ];
   // configuration for lossless offline
-  LosslessOffline losslessOffline = 9 [ json_name = "lossless_offline" ];
+  LosslessOffline losslessOffline = 8 [ json_name = "lossless_offline" ];
   // rule labels
-  map<string, string> metadata = 10;
+  map<string, string> metadata = 9 [ json_name = "metadata" ];
 }
 
 message LosslessOnline {
diff --git a/api/v1/traffic_manage/ratelimit.proto b/api/v1/traffic_manage/ratelimit.proto
index bc83cad..8ac3bd9 100644
--- a/api/v1/traffic_manage/ratelimit.proto
+++ b/api/v1/traffic_manage/ratelimit.proto
@@ -97,9 +97,9 @@ message Rule {
   // amount for concurrency rate-limit
   ConcurrencyAmount concurrencyAmount = 27 [ json_name = "concurrency_amount" ];
   // fallback configuration
-  FallbackConfig fallbackConfig = 28 [ json_name = "fallback_config" ];
+  CustomResponse customResponse = 28 [ json_name = "custom_response" ];
   // 限流规则标签数据
-  map<string, string> metadata = 29;
+  map<string, string> metadata = 29 [ json_name = "metadata" ];
 }
 
 message MatchArgument {
@@ -132,6 +132,11 @@ message ConcurrencyAmount {
   uint32 maxAmount = 1 [ json_name = "max_amount" ];
 }
 
+// custom response text when limited
+message CustomResponse {
+  string body = 3 [ json_name = "body" ];
+}
+
 // 分布式限流服务集群
 message RateLimitCluster {
   google.protobuf.StringValue service = 1;
diff --git a/source/java/build-mac.sh b/source/java/build-mac.sh
index b5495c9..e883d73 100644
--- a/source/java/build-mac.sh
+++ b/source/java/build-mac.sh
@@ -26,7 +26,6 @@ traffic_manage_dir=${workdir}/api/v1/traffic_manage
 fault_tolerance_dir=${workdir}/api/v1/fault_tolerance
 config_manage_dir=${workdir}/api/v1/config_manage
 security_dir=${workdir}/api/v1/security
-
 java_root_dir=${workdir}/source/java/polaris-specification
 java_test_root_dir=${workdir}/source/java/polaris-specification-test
 java_source_dir=${java_root_dir}/src/main
@@ -45,8 +44,17 @@ cp ${traffic_manage_dir}/ratelimiter/*.proto ${java_source_dir}/proto/
 version=`cat ${workdir}/VERSION`
 echo $version
 pushd ${java_root_dir}
+cp pom.xml pom.xml.bak
 sed -i "" "s/##VERSION##/${version}/g" pom.xml
+mvn clean install
+mv pom.xml.bak pom.xml
 popd
 pushd ${java_test_root_dir}
+cp pom.xml pom.xml.bak
 sed -i "" "s/##VERSION##/${version}/g" pom.xml
-popd
\ No newline at end of file
+mvn clean install
+mv pom.xml.bak pom.xml
+popd
+
+rm -rf ${java_source_dir}/proto
+
diff --git a/source/java/polaris-specification-test/pom.xml b/source/java/polaris-specification-test/pom.xml
index 37e5159..4642814 100644
--- a/source/java/polaris-specification-test/pom.xml
+++ b/source/java/polaris-specification-test/pom.xml
@@ -14,7 +14,7 @@
 	</modules>
 
 	<properties>
-		<revision>2.0.0.0-SNAPSHOT</revision>
+		<revision>##VERSION##</revision>
 		<maven.compiler.source>8</maven.compiler.source>
 		<maven.compiler.target>8</maven.compiler.target>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>