diff --git a/apm-protocol/apm-network/src/main/proto b/apm-protocol/apm-network/src/main/proto
index b66fa070f..c91b65dd8 160000
--- a/apm-protocol/apm-network/src/main/proto
+++ b/apm-protocol/apm-network/src/main/proto
@@ -1 +1 @@
-Subproject commit b66fa070fd647662f06497e4ed3657eb258cb6e9
+Subproject commit c91b65dd8fac2c5866d79834ae73c3c445ce11cf
diff --git a/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/jvm/cpu/CPUMetricAccessor.java b/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/jvm/cpu/CPUMetricAccessor.java
index 8b12dff51..9b6d34561 100644
--- a/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/jvm/cpu/CPUMetricAccessor.java
+++ b/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/jvm/cpu/CPUMetricAccessor.java
@@ -19,6 +19,7 @@
 
 package org.apache.skywalking.apm.agent.core.jvm.cpu;
 
+import org.apache.skywalking.apm.network.common.CPU;
 import org.apache.skywalking.apm.network.language.agent.*;
 
 /**
diff --git a/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/jvm/cpu/CPUProvider.java b/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/jvm/cpu/CPUProvider.java
index 6701b508a..bb9422daf 100644
--- a/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/jvm/cpu/CPUProvider.java
+++ b/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/jvm/cpu/CPUProvider.java
@@ -22,6 +22,7 @@ package org.apache.skywalking.apm.agent.core.jvm.cpu;
 import org.apache.skywalking.apm.agent.core.logging.api.ILog;
 import org.apache.skywalking.apm.agent.core.logging.api.LogManager;
 import org.apache.skywalking.apm.agent.core.os.ProcessorUtil;
+import org.apache.skywalking.apm.network.common.CPU;
 import org.apache.skywalking.apm.network.language.agent.*;
 
 /**
diff --git a/oap-server/server-receiver-plugin/skywalking-jvm-receiver-plugin/src/main/java/org/apache/skywalking/oap/server/receiver/jvm/provider/handler/JVMSourceDispatcher.java b/oap-server/server-receiver-plugin/skywalking-jvm-receiver-plugin/src/main/java/org/apache/skywalking/oap/server/receiver/jvm/provider/handler/JVMSourceDispatcher.java
index a977d1096..51aa69ffd 100644
--- a/oap-server/server-receiver-plugin/skywalking-jvm-receiver-plugin/src/main/java/org/apache/skywalking/oap/server/receiver/jvm/provider/handler/JVMSourceDispatcher.java
+++ b/oap-server/server-receiver-plugin/skywalking-jvm-receiver-plugin/src/main/java/org/apache/skywalking/oap/server/receiver/jvm/provider/handler/JVMSourceDispatcher.java
@@ -19,6 +19,7 @@
 package org.apache.skywalking.oap.server.receiver.jvm.provider.handler;
 
 import java.util.List;
+import org.apache.skywalking.apm.network.common.CPU;
 import org.apache.skywalking.apm.network.language.agent.*;
 import org.apache.skywalking.oap.server.core.*;
 import org.apache.skywalking.oap.server.core.cache.ServiceInstanceInventoryCache;
diff --git a/oap-server/server-receiver-plugin/skywalking-jvm-receiver-plugin/src/test/java/org/apache/skywalking/oap/server/receiver/jvm/provider/handler/JVMMetricsServiceHandlerMainTest.java b/oap-server/server-receiver-plugin/skywalking-jvm-receiver-plugin/src/test/java/org/apache/skywalking/oap/server/receiver/jvm/provider/handler/JVMMetricsServiceHandlerMainTest.java
index 79da3c89c..7410305a1 100644
--- a/oap-server/server-receiver-plugin/skywalking-jvm-receiver-plugin/src/test/java/org/apache/skywalking/oap/server/receiver/jvm/provider/handler/JVMMetricsServiceHandlerMainTest.java
+++ b/oap-server/server-receiver-plugin/skywalking-jvm-receiver-plugin/src/test/java/org/apache/skywalking/oap/server/receiver/jvm/provider/handler/JVMMetricsServiceHandlerMainTest.java
@@ -20,6 +20,7 @@ package org.apache.skywalking.oap.server.receiver.jvm.provider.handler;
 
 import io.grpc.*;
 import java.util.concurrent.*;
+import org.apache.skywalking.apm.network.common.CPU;
 import org.apache.skywalking.apm.network.language.agent.*;
 
 /**