diff --git a/mirai-debug/src/main/java/japttest/SuspendTest.java b/mirai-debug/src/main/java/japttest/SuspendTest.java
index 8a8df0f01..df87dd6d4 100644
--- a/mirai-debug/src/main/java/japttest/SuspendTest.java
+++ b/mirai-debug/src/main/java/japttest/SuspendTest.java
@@ -1,28 +1,15 @@
 package japttest;
 
-import kotlinx.coroutines.BuildersKt;
-import kotlinx.coroutines.GlobalScope;
-import net.mamoe.mirai.Bot;
-import net.mamoe.mirai.BotAccount;
 import net.mamoe.mirai.network.protocol.tim.packet.login.LoginResult;
-import net.mamoe.mirai.network.protocol.tim.packet.login.SubmitPasswordPacket;
 import test.JaptTestKt;
 
 @SuppressWarnings("unused")
 public class SuspendTest {
 
-    public static void main(String[] args) throws InterruptedException {
+    public static void main(String[] args) {
         // TODO: 2019/12/6 Kotlin or IDE bug here
         boolean bool = JaptTestKt.getLoginResult() == LoginResult.YOU_CAN_WRITE_ANY_THING;
 
-        BuildersKt.runBlocking(GlobalScope.INSTANCE.getCoroutineContext(), (scope, continuation) -> {
-            Bot bot = new Bot(new BotAccount(1994701021L, ""), scope.getCoroutineContext());
-            if (bot.network.login(continuation) instanceof SubmitPasswordPacket.LoginResponse.Success) {
-                System.out.println("login successful");
-            }
-            return null;
-        });
-
         System.out.println("Hello world finished");
 
     }
diff --git a/mirai-debug/src/main/kotlin/PacketDebuger.kt b/mirai-debug/src/main/kotlin/PacketDebuger.kt
index 3af71e0c6..400d59d1f 100644
--- a/mirai-debug/src/main/kotlin/PacketDebuger.kt
+++ b/mirai-debug/src/main/kotlin/PacketDebuger.kt
@@ -18,6 +18,7 @@ import net.mamoe.mirai.network.protocol.tim.packet.login.LoginResult
 import net.mamoe.mirai.network.protocol.tim.packet.login.ShareKey
 import net.mamoe.mirai.network.protocol.tim.packet.login.TouchKey
 import net.mamoe.mirai.utils.DecryptionFailedException
+import net.mamoe.mirai.utils.MiraiInternalAPI
 import net.mamoe.mirai.utils.decryptBy
 import net.mamoe.mirai.utils.io.*
 import org.pcap4j.core.BpfProgram.BpfCompileMode
@@ -329,6 +330,7 @@ internal object DebugNetworkHandler : BotNetworkHandler<DataPacketSocketAdapter>
 
     override suspend fun login(): LoginResult = LoginResult.SUCCESS
 
+    @UseExperimental(MiraiInternalAPI::class)
     override suspend fun addHandler(temporaryPacketHandler: TemporaryPacketHandler<*, *>) {
     }