Include packet class name in packet encoding error messages (#9907)

patches/server/Deobfuscate-stacktraces-in-log-messages-crash-report.patch

@@ -523,6 +523,26 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
      }
  
      protected void channelRead0(ChannelHandlerContext channelhandlercontext, Packet<?> packet) {
+diff --git a/src/main/java/net/minecraft/network/PacketEncoder.java b/src/main/java/net/minecraft/network/PacketEncoder.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/network/PacketEncoder.java
++++ b/src/main/java/net/minecraft/network/PacketEncoder.java
+@@ -0,0 +0,0 @@ public class PacketEncoder extends MessageToByteEncoder<Packet<?>> {
+ 
+                     JvmProfiler.INSTANCE.onPacketSent(codecData.protocol(), i, channelHandlerContext.channel().remoteAddress(), k);
+                 } catch (Throwable var13) {
+-                    LOGGER.error("Packet encoding of packet ID {} threw (skippable? {})", i, packet.isSkippable(), var13); // Paper - Give proper error message
++                    // Paper start - Give proper error message
++                    String packetName = io.papermc.paper.util.ObfHelper.INSTANCE.deobfClassName(packet.getClass().getName());
++                    if (packetName.contains(".")) {
++                        packetName = packetName.substring(packetName.lastIndexOf(".") + 1);
++                    }
++
++                    LOGGER.error("Packet encoding of packet {} (ID: {}) threw (skippable? {})", packetName, i, packet.isSkippable(), var13);
++                    // Paper end
+                     if (packet.isSkippable()) {
+                         throw new SkipPacketException(var13);
+                     }
 diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
 index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
 --- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java