Fix init error

mirai-core/src/androidMain/kotlin/net/mamoe/mirai/message/MessagePacket.kt

@@ -7,6 +7,8 @@
  * https://github.com/mamoe/mirai/blob/master/LICENSE
  */
 
+@file:Suppress("unused")
+
 package net.mamoe.mirai.message
 
 import android.graphics.Bitmap
@@ -28,29 +30,66 @@ import java.net.URL
     replaceWith = ReplaceWith("ContactMessage", "net.mamoe.mirai.message.ContactMessage")
 )
 @OptIn(MiraiInternalAPI::class)
-actual sealed class MessagePacket<TSender : QQ, TSubject : Contact> actual constructor() :
+actual abstract class MessagePacket<TSender : QQ, TSubject : Contact> actual constructor() :
     MessagePacketBase<TSender, TSubject>() {
+
+    @JvmSynthetic
     suspend inline fun uploadImage(image: Bitmap): Image = subject.uploadImage(image)
+
+    @JvmSynthetic
     suspend inline fun uploadImage(image: URL): Image = subject.uploadImage(image)
+
+    @JvmSynthetic
     suspend inline fun uploadImage(image: Input): Image = subject.uploadImage(image)
+
+    @JvmSynthetic
     suspend inline fun uploadImage(image: InputStream): Image = subject.uploadImage(image)
+
+    @JvmSynthetic
     suspend inline fun uploadImage(image: File): Image = subject.uploadImage(image)
 
+    @JvmSynthetic
     suspend inline fun sendImage(image: Bitmap): MessageReceipt<TSubject> = subject.sendImage(image)
+
+    @JvmSynthetic
     suspend inline fun sendImage(image: URL): MessageReceipt<TSubject> = subject.sendImage(image)
+
+    @JvmSynthetic
     suspend inline fun sendImage(image: Input): MessageReceipt<TSubject> = subject.sendImage(image)
+
+    @JvmSynthetic
     suspend inline fun sendImage(image: InputStream): MessageReceipt<TSubject> = subject.sendImage(image)
+
+    @JvmSynthetic
     suspend inline fun sendImage(image: File): MessageReceipt<TSubject> = subject.sendImage(image)
 
+    @JvmSynthetic
     suspend inline fun Bitmap.upload(): Image = upload(subject)
+
+    @JvmSynthetic
     suspend inline fun URL.uploadAsImage(): Image = uploadAsImage(subject)
+
+    @JvmSynthetic
     suspend inline fun Input.uploadAsImage(): Image = uploadAsImage(subject)
+
+    @JvmSynthetic
     suspend inline fun InputStream.uploadAsImage(): Image = uploadAsImage(subject)
+
+    @JvmSynthetic
     suspend inline fun File.uploadAsImage(): Image = uploadAsImage(subject)
 
+    @JvmSynthetic
     suspend inline fun Bitmap.send(): MessageReceipt<TSubject> = sendTo(subject)
+
+    @JvmSynthetic
     suspend inline fun URL.sendAsImage(): MessageReceipt<TSubject> = sendAsImageTo(subject)
+
+    @JvmSynthetic
     suspend inline fun Input.sendAsImage(): MessageReceipt<TSubject> = sendAsImageTo(subject)
+
+    @JvmSynthetic
     suspend inline fun InputStream.sendAsImage(): MessageReceipt<TSubject> = sendAsImageTo(subject)
+
+    @JvmSynthetic
     suspend inline fun File.sendAsImage(): MessageReceipt<TSubject> = sendAsImageTo(subject)
 }
\ No newline at end of file

mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/MessagePacket.kt

@@ -65,7 +65,8 @@ abstract class ContactMessage : MessagePacket<QQ, Contact>(), BotEvent
     message = "use ContactMessage",
     replaceWith = ReplaceWith("ContactMessage", "net.mamoe.mirai.message.ContactMessage")
 )
-expect sealed class MessagePacket<TSender : QQ, TSubject : Contact>() : MessagePacketBase<TSender, TSubject>
+expect abstract class MessagePacket<TSender : QQ, TSubject : Contact> constructor() :
+    MessagePacketBase<TSender, TSubject>
 
 /**
  * 仅内部使用, 请使用 [ContactMessage]

mirai-core/src/jvmMain/kotlin/net/mamoe/mirai/message/MessagePacket.kt

@@ -38,71 +38,99 @@ import java.net.URL
     replaceWith = ReplaceWith("ContactMessage", "net.mamoe.mirai.message.ContactMessage")
 )
 @OptIn(MiraiInternalAPI::class, MiraiExperimentalAPI::class)
-actual sealed class MessagePacket<TSender : QQ, TSubject : Contact> actual constructor() : MessagePacketBase<TSender, TSubject>() {
+actual abstract class MessagePacket<TSender : QQ, TSubject : Contact> actual constructor() :
+    MessagePacketBase<TSender, TSubject>() {
     // region 上传图片
+    @JvmSynthetic
     suspend inline fun uploadImage(image: BufferedImage): Image = subject.uploadImage(image)
 
+    @JvmSynthetic
     suspend inline fun uploadImage(image: URL): Image = subject.uploadImage(image)
+    @JvmSynthetic
     suspend inline fun uploadImage(image: Input): Image = subject.uploadImage(image)
+    @JvmSynthetic
     suspend inline fun uploadImage(image: InputStream): Image = subject.uploadImage(image)
+    @JvmSynthetic
     suspend inline fun uploadImage(image: File): Image = subject.uploadImage(image)
     // endregion
 
     // region 发送图片
+    @JvmSynthetic
     suspend inline fun sendImage(image: BufferedImage): MessageReceipt<TSubject> = subject.sendImage(image)
+    @JvmSynthetic
     suspend inline fun sendImage(image: URL): MessageReceipt<TSubject> = subject.sendImage(image)
+    @JvmSynthetic
     suspend inline fun sendImage(image: Input): MessageReceipt<TSubject> = subject.sendImage(image)
+    @JvmSynthetic
     suspend inline fun sendImage(image: InputStream): MessageReceipt<TSubject> = subject.sendImage(image)
+    @JvmSynthetic
     suspend inline fun sendImage(image: File): MessageReceipt<TSubject> = subject.sendImage(image)
     // endregion
 
     // region 上传图片 (扩展)
+    @JvmSynthetic
     suspend inline fun BufferedImage.upload(): Image = upload(subject)
+    @JvmSynthetic
     suspend inline fun URL.uploadAsImage(): Image = uploadAsImage(subject)
+    @JvmSynthetic
     suspend inline fun Input.uploadAsImage(): Image = uploadAsImage(subject)
+    @JvmSynthetic
     suspend inline fun InputStream.uploadAsImage(): Image = uploadAsImage(subject)
+    @JvmSynthetic
     suspend inline fun File.uploadAsImage(): Image = uploadAsImage(subject)
     // endregion 上传图片 (扩展)
 
     // region 发送图片 (扩展)
+    @JvmSynthetic
     suspend inline fun BufferedImage.send(): MessageReceipt<TSubject> = sendTo(subject)
+    @JvmSynthetic
     suspend inline fun URL.sendAsImage(): MessageReceipt<TSubject> = sendAsImageTo(subject)
+    @JvmSynthetic
     suspend inline fun Input.sendAsImage(): MessageReceipt<TSubject> = sendAsImageTo(subject)
+    @JvmSynthetic
     suspend inline fun InputStream.sendAsImage(): MessageReceipt<TSubject> = sendAsImageTo(subject)
+    @JvmSynthetic
     suspend inline fun File.sendAsImage(): MessageReceipt<TSubject> = sendAsImageTo(subject)
     // endregion 发送图片 (扩展)
 
     // region 下载图片 (扩展)
+    @JvmSynthetic
     suspend inline fun Image.downloadTo(file: File) = file.outputStream().use { downloadTo(it) }
 
     /**
      * 下载图片到 [output] 但不关闭这个 [output]
      */
+    @JvmSynthetic
     suspend inline fun Image.downloadTo(output: OutputStream) = channel().copyTo(output)
 
     /**
      * 下载图片到 [output] 并关闭这个 [output]
      */
+    @JvmSynthetic
     suspend inline fun Image.downloadAndClose(output: OutputStream) = channel().copyAndClose(output)
 
     /**
      * 下载图片到 [output] 但不关闭这个 [output]
      */
+    @JvmSynthetic
     suspend inline fun Image.downloadTo(output: Output) = channel().copyTo(output)
 
     /**
      * 下载图片到 [output] 并关闭这个 [output]
      */
+    @JvmSynthetic
     suspend inline fun Image.downloadAndClose(output: Output) = channel().copyAndClose(output)
 
     /**
      * 下载图片到 [output] 但不关闭这个 [output]
      */
+    @JvmSynthetic
     suspend inline fun Image.downloadTo(output: ByteWriteChannel) = channel().copyTo(output)
 
     /**
      * 下载图片到 [output] 并关闭这个 [output]
      */
+    @JvmSynthetic
     suspend inline fun Image.downloadAndClose(output: ByteWriteChannel) = channel().copyAndClose(output)
 
     /*