diff --git a/mirai-api-http/src/main/kotlin/net/mamoe/mirai/api/http/MiraiHttpAPIServer.kt b/mirai-api-http/src/main/kotlin/net/mamoe/mirai/api/http/MiraiHttpAPIServer.kt
index 2d4664b2f..651f3ada2 100644
--- a/mirai-api-http/src/main/kotlin/net/mamoe/mirai/api/http/MiraiHttpAPIServer.kt
+++ b/mirai-api-http/src/main/kotlin/net/mamoe/mirai/api/http/MiraiHttpAPIServer.kt
@@ -18,16 +18,11 @@ object MiraiHttpAPIServer {
     @UseExperimental(KtorExperimentalAPI::class)
     fun start(
         port: Int = 8080,
-        authKey: String? = null,
+        authKey: String,
         callback: (() -> Unit)? = null
     ) {
-        authKey?.apply {
-            if (authKey.length in 8..128) {
-                SessionManager.authKey = authKey
-            } else {
-                logger.error("Expected authKey length is between 8 to 128")
-            }
-        }
+        require(authKey.length in 8..128) { "Expected authKey length is between 8 to 128" }
+        SessionManager.authKey = authKey
 
         // TODO: start是无阻塞的，理应获取启动状态后再执行后续代码
         try {
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/ContactImpl.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/ContactImpl.kt
index 6fca26a11..29fa98a9a 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/ContactImpl.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/ContactImpl.kt
@@ -1,6 +1,5 @@
 package net.mamoe.mirai.qqandroid
 
-import kotlinx.coroutines.async
 import kotlinx.coroutines.launch
 import net.mamoe.mirai.contact.*
 import net.mamoe.mirai.data.FriendNameRemark
@@ -60,6 +59,9 @@ internal class QQImpl(bot: QQAndroidBot, override val coroutineContext: Coroutin
         TODO("not implemented")
     }
 
+    override fun equals(other: Any?): Boolean {
+        return other is QQ && other.id == this.id
+    }
 }
 
 
@@ -108,6 +110,9 @@ internal class MemberImpl(
         return mute(0)
     }
 
+    override fun equals(other: Any?): Boolean {
+        return other is Member && other.id == this.id
+    }
 }
 
 
@@ -325,4 +330,8 @@ internal class GroupImpl(
             }
         }
     }
+
+    override fun equals(other: Any?): Boolean {
+        return other is Group && other.id == this.id
+    }
 }
\ No newline at end of file