diff --git a/gradle.properties b/gradle.properties
index 63ba1fe10..68ea555d2 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -3,7 +3,7 @@ kotlin.code.style=official
 # config
 miraiVersion=0.24.1
 miraiConsoleVersion=0.3.2
-miraiConsoleWrapperVersion=0.0.1
+miraiConsoleWrapperVersion=0.1.1
 kotlin.incremental.multiplatform=true
 kotlin.parallel.tasks.in.project=true
 # kotlin
diff --git a/mirai-console-wrapper/src/main/kotlin/net/mamoe/mirai/console/wrapper/ConsoleUpdator.kt b/mirai-console-wrapper/src/main/kotlin/net/mamoe/mirai/console/wrapper/ConsoleUpdator.kt
index b38852936..599b013c2 100644
--- a/mirai-console-wrapper/src/main/kotlin/net/mamoe/mirai/console/wrapper/ConsoleUpdator.kt
+++ b/mirai-console-wrapper/src/main/kotlin/net/mamoe/mirai/console/wrapper/ConsoleUpdator.kt
@@ -68,10 +68,10 @@ object ConsoleUpdator{
             ).asSequence()
                 .map { it.value.drop(1).dropLast(1) }
                 .maxBy {
-                    it.split('.').foldRightIndexed(0) { index: Int, s: String, acc: Int ->
-                        acc + 100.0.pow(2 - index).toInt() * (s.toIntOrNull() ?: 0)
-                    }
-                }!!
+                it.split('.').foldRightIndexed(0) { index: Int, s: String, acc: Int ->
+                    acc + 100.0.pow(2 - index).toInt() * (s.toIntOrNull() ?: 0)
+                }
+            }!!
         } catch (e: Exception) {
             println("Failed to fetch newest Console version, please seek for help")
             e.printStackTrace()
diff --git a/mirai-console-wrapper/src/main/kotlin/net/mamoe/mirai/console/wrapper/Downloader.kt b/mirai-console-wrapper/src/main/kotlin/net/mamoe/mirai/console/wrapper/Downloader.kt
index c28cfe738..f10b1e150 100644
--- a/mirai-console-wrapper/src/main/kotlin/net/mamoe/mirai/console/wrapper/Downloader.kt
+++ b/mirai-console-wrapper/src/main/kotlin/net/mamoe/mirai/console/wrapper/Downloader.kt
@@ -39,7 +39,15 @@ inline fun <R> tryNTimesOrQuit(repeat: Int, errorHint: String, block: (Int) -> R
 
 
 suspend inline fun HttpClient.downloadRequest(url: String): ByteReadChannel {
-    return this.get<HttpResponse>(url).content
+    return with(this.get<HttpResponse>(url)){
+        if(this.status.value == 404 || this.status.value == 403){
+            error("File not found")
+        }
+        if(this.headers["status"] !=null && this.headers["status"] == "404"){
+            error("File not found")
+        }
+        this.content
+    }
 }
 
 private val jcenterPath =  "https://jcenter.bintray.com/{group}/{project}/{version}/:{project}-{version}.{extension}"
@@ -77,7 +85,7 @@ suspend fun HttpClient.downloadMaven(
         )
     }.getOrElse {
         downloadRequest(
-            aliyunPath.buildPath(groupName,projectName,version,extension)
+            jcenterPath.buildPath(groupName,projectName,version,extension)
         )
     }
 }
@@ -104,20 +112,13 @@ suspend fun HttpClient.downloadMavenPomAsString(
     version: String
 ):String{
     return kotlin.runCatching {
-        Http.get<String>(
+        this.get<String>(
             aliyunPath.buildPath(groupName,projectName,version,"pom")
         )
     }.getOrElse {
-       try {
-           Http.get(
-               aliyunPath.buildPath(groupName, projectName, version, "pom")
-           )
-       }catch (e:Exception){
-           if(e.message?.contains("404 Not Found") == true) {
-               return ""
-           }
-           throw e
-       }
+        this.get(
+            aliyunPath.buildPath(groupName, projectName, version, "pom")
+        )
     }
 }
 
diff --git a/mirai-console-wrapper/src/main/kotlin/net/mamoe/mirai/console/wrapper/WrapperMain.kt b/mirai-console-wrapper/src/main/kotlin/net/mamoe/mirai/console/wrapper/WrapperMain.kt
index ee649b342..caee74998 100644
--- a/mirai-console-wrapper/src/main/kotlin/net/mamoe/mirai/console/wrapper/WrapperMain.kt
+++ b/mirai-console-wrapper/src/main/kotlin/net/mamoe/mirai/console/wrapper/WrapperMain.kt
@@ -9,17 +9,10 @@
 @file:Suppress("EXPERIMENTAL_API_USAGE")
 package net.mamoe.mirai.console.wrapper
 
-import io.ktor.client.HttpClient
-import io.ktor.client.engine.cio.CIO
-import io.ktor.client.request.get
-import io.ktor.client.statement.HttpResponse
-import io.ktor.utils.io.ByteReadChannel
-import io.ktor.utils.io.jvm.javaio.copyTo
 import kotlinx.coroutines.*
 import java.io.File
 import java.net.URLClassLoader
 import java.util.*
-import kotlin.system.exitProcess
 
 
 val contentPath by lazy {
@@ -33,6 +26,12 @@ val contentPath by lazy {
 object WrapperMain {
     @JvmStatic
     fun main(args: Array<String>) {
+        GlobalScope.launch{
+            while (true) {
+                delay(1000*60*5)
+                System.gc()
+            }
+        }
         println("You are running Mirai-Console-Wrapper under " + System.getProperty("user.dir"))
 
         var type = WrapperProperties.determineConsoleType(WrapperProperties.content)
diff --git a/mirai-console/src/main/kotlin/net/mamoe/mirai/console/events/Events.java b/mirai-console/src/main/kotlin/net/mamoe/mirai/console/events/Events.java
new file mode 100644
index 000000000..287d1c3a9
--- /dev/null
+++ b/mirai-console/src/main/kotlin/net/mamoe/mirai/console/events/Events.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2020 Mamoe Technologies and contributors.
+ *
+ * 此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证.
+ * Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link.
+ *
+ * https://github.com/mamoe/mirai/blob/master/LICENSE
+ */
+
+package net.mamoe.mirai.console.events;
+
+import kotlinx.coroutines.GlobalScope;
+import net.mamoe.mirai.event.Event;
+import net.mamoe.mirai.event.Listener;
+import net.mamoe.mirai.event.ListeningStatus;
+import net.mamoe.mirai.event.internal.EventInternalJvmKt;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.function.Consumer;
+import java.util.function.Function;
+
+/**
+ * 事件处理
+ */
+public final class Events {
+
+    /**
+     * 监听一个事件, 当 {@code onEvent} 返回 {@link ListeningStatus#STOPPED} 时停止监听.
+     * 机器人离线后不会停止监听.
+     *
+     * @param eventClass 事件类
+     * @param onEvent    事件处理. 返回 {@link ListeningStatus#LISTENING} 时继续监听.
+     * @param <E>        事件类型
+     * @return 事件监听器. 可调用 {@link Listener#complete()} 或 {@link Listener#completeExceptionally(Throwable)} 让监听正常停止或异常停止.
+     */
+    @NotNull
+    public static <E extends Event> Listener<E> subscribe(@NotNull Class<E> eventClass, @NotNull Function<E, ListeningStatus> onEvent) {
+        return EventInternalJvmKt._subscribeEventForJaptOnly(eventClass, GlobalScope.INSTANCE, onEvent);
+    }
+
+    /**
+     * 监听一个事件, 直到手动停止.
+     * 机器人离线后不会停止监听.
+     *
+     * @param eventClass 事件类
+     * @param onEvent    事件处理. 返回 {@link ListeningStatus#LISTENING} 时继续监听.
+     * @param <E>        事件类型
+     * @return 事件监听器. 可调用 {@link Listener#complete()} 或 {@link Listener#completeExceptionally(Throwable)} 让监听正常停止或异常停止.
+     */
+    @NotNull
+    public static <E extends Event> Listener<E> subscribeAlways(@NotNull Class<E> eventClass, @NotNull Consumer<E> onEvent) {
+        return EventInternalJvmKt._subscribeEventForJaptOnly(eventClass, GlobalScope.INSTANCE, onEvent);
+    }
+
+    /**
+     * 阻塞地广播一个事件.
+     *
+     * @param event 事件
+     * @param <E>   事件类型
+     * @return {@code event} 本身
+     */
+    @NotNull
+    public static <E extends Event> E broadcast(@NotNull E event) {
+        return EventsImplKt.broadcast(event);
+    }
+}
\ No newline at end of file
diff --git a/mirai-console/src/main/kotlin/net/mamoe/mirai/console/events/EventsImpl.kt b/mirai-console/src/main/kotlin/net/mamoe/mirai/console/events/EventsImpl.kt
new file mode 100644
index 000000000..baf44f72e
--- /dev/null
+++ b/mirai-console/src/main/kotlin/net/mamoe/mirai/console/events/EventsImpl.kt
@@ -0,0 +1,16 @@
+/*
+ * Copyright 2020 Mamoe Technologies and contributors.
+ *
+ * 此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证.
+ * Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link.
+ *
+ * https://github.com/mamoe/mirai/blob/master/LICENSE
+ */
+
+package net.mamoe.mirai.console.events;
+
+import kotlinx.coroutines.runBlocking
+import net.mamoe.mirai.event.Event
+import net.mamoe.mirai.event.broadcast
+
+internal fun <E : Event> broadcast(e: E): E = runBlocking { e.broadcast() }
\ No newline at end of file
diff --git a/mirai-console/src/main/kotlin/net/mamoe/mirai/console/plugins/PluginBase.kt b/mirai-console/src/main/kotlin/net/mamoe/mirai/console/plugins/PluginBase.kt
index c8bec6dc1..dc8c38066 100644
--- a/mirai-console/src/main/kotlin/net/mamoe/mirai/console/plugins/PluginBase.kt
+++ b/mirai-console/src/main/kotlin/net/mamoe/mirai/console/plugins/PluginBase.kt
@@ -83,7 +83,11 @@ abstract class PluginBase
     @JvmOverloads
     internal fun disable(throwable: CancellationException? = null) {
         this.coroutineContext[Job]!!.cancelChildren(throwable)
-        this.onDisable()
+        try {
+            this.onDisable()
+        }catch (e:Exception){
+            logger.info(e)
+        }
     }
 
     internal var pluginName: String = ""
diff --git a/mirai-console/src/main/kotlin/net/mamoe/mirai/console/plugins/PluginManager.kt b/mirai-console/src/main/kotlin/net/mamoe/mirai/console/plugins/PluginManager.kt
index d8208139f..0359249b8 100644
--- a/mirai-console/src/main/kotlin/net/mamoe/mirai/console/plugins/PluginManager.kt
+++ b/mirai-console/src/main/kotlin/net/mamoe/mirai/console/plugins/PluginManager.kt
@@ -42,7 +42,11 @@ object PluginManager {
 
     fun onCommand(command: Command, sender: CommandSender, args: List<String>) {
         nameToPluginBaseMap.values.forEach {
-            it.onCommand(command, sender, args)
+            try {
+                it.onCommand(command, sender, args)
+            }catch (e:Exception){
+                logger.info(e)
+            }
         }
     }
 
@@ -194,7 +198,27 @@ object PluginManager {
         }
 
         nameToPluginBaseMap.values.forEach {
-            it.enable()
+            try {
+                it.onLoad()
+            }catch (ignored:Exception){
+                if(ignored is CancellationException) {
+                    logger.info(ignored)
+                    logger.info(it.pluginName + "Failed to load, disabling it")
+                    it.disable(ignored)
+                }
+            }
+        }
+
+        nameToPluginBaseMap.values.forEach {
+            try {
+                it.enable()
+            }catch (ignored:Exception){
+                logger.info(ignored)
+                logger.info(it.pluginName + "Failed to enable, disabling it")
+                if(ignored is CancellationException) {
+                    it.disable(ignored)
+                }
+            }
         }
 
         logger.info("""加载了${nameToPluginBaseMap.size}个插件""")
@@ -213,9 +237,9 @@ object PluginManager {
      * 根据插件名字找Jar的文件
      * null => 没找到
      */
-    fun getJarPath(pluginName: String): File? {
+    fun getJarFileByName(pluginName: String): File? {
         File(pluginsPath).listFiles()?.forEach { file ->
-            if (file != null && file.extension == "jar") {
+           if (file != null && file.extension == "jar") {
                 val jar = JarFile(file)
                 val pluginYml =
                     jar.entries().asSequence().filter { it.name.toLowerCase().contains("plugin.yml") }.firstOrNull()
@@ -240,7 +264,7 @@ object PluginManager {
      * null => 没找到
      */
     fun getFileInJarByName(pluginName: String, toFind: String): InputStream? {
-        val jarFile = getJarPath(pluginName) ?: return null
+        val jarFile = getJarFileByName(pluginName) ?: return null
         val jar = JarFile(jarFile)
         val toFindFile =
             jar.entries().asSequence().filter { it.name == toFind }.firstOrNull() ?: return null
diff --git a/mirai-console/src/main/kotlin/net/mamoe/mirai/console/scheduler/SchedulerTask.kt b/mirai-console/src/main/kotlin/net/mamoe/mirai/console/scheduler/SchedulerTask.kt
new file mode 100644
index 000000000..ac145af57
--- /dev/null
+++ b/mirai-console/src/main/kotlin/net/mamoe/mirai/console/scheduler/SchedulerTask.kt
@@ -0,0 +1,69 @@
+package net.mamoe.mirai.console.scheduler
+
+import net.mamoe.mirai.console.plugins.PluginBase
+
+interface SchedulerTask<T:PluginBase>{
+    abstract fun onTick(i:Long)
+    abstract fun onRun()
+}
+
+abstract class RepeatTask<T:PluginBase>(
+    val intervalInMs: Int
+):SchedulerTask<T>{
+
+    override fun onTick(i: Long) {
+        if(i%intervalInMs == 0L){
+            onRun()
+        }
+    }
+
+    companion object{
+        fun <T:PluginBase> of(
+            intervalInMs: Int, runnable: () -> Unit
+        ):RepeatTask<T>{
+            return AnonymousRepeatTask<T>(
+                intervalInMs, runnable
+            )
+        }
+    }
+}
+
+internal class AnonymousRepeatTask<T: PluginBase>(
+    intervalInMs: Int, private val runnable: () -> Unit
+): RepeatTask<T>(intervalInMs){
+    override fun onRun() {
+        runnable.invoke()
+    }
+}
+
+fun <T:PluginBase> T.repeatTask(
+    intervalInMs: Int, runnable: () -> Unit
+):RepeatTask<T>{
+    return AnonymousRepeatTask<T>(
+        intervalInMs, runnable
+    )
+}
+
+
+fun <T> repeatTask(){
+
+}
+
+class X: PluginBase() {
+    override fun onLoad() {
+        //kotlin
+        this.repeatTask(5){
+
+        }
+        //java1
+        RepeatTask.of<X>(5){
+
+        }
+        //java2
+        class Xtask:RepeatTask<X>(5){
+            override fun onRun() {
+
+            }
+        }
+    }
+}
\ No newline at end of file