Fix missing data component in registry

Author: LukynkaCZE

gradle.properties

@@ -1,3 +1,3 @@
 kotlin.daemon.jvmargs=-Xmx3000m
-dockyard.version=0.9.9.4-SNAPSHOT
+dockyard.version=0.9.9.5-SNAPSHOT
 kotlin.code.style=official

src/main/kotlin/io/github/dockyardmc/data/DataComponentRegistry.kt

@@ -70,6 +70,7 @@ object DataComponentRegistry {
     val BLOCK_ENTITY_DATA = register("minecraft:block_entity_data", BlockEntityDataComponent::class)
     val INSTRUMENT = register("minecraft:instrument", InstrumentComponent::class)
     val PROVIDES_TRIM_MATERIAL = register("minecraft:provides_trim_material", ProvidesTrimMaterialComponent::class)
+    val OMINOUS_BOTTLE_AMPLIFIER = register("minecraft:ominous_battle_amplifier", OminousBattleAmplifier::class)
     val JUKEBOX_PLAYABLE = register("minecraft:jukebox_playable", JukeboxPlayableComponent::class)
     val PROVIDES_BANNER_PATTERNS = register("minecraft:provides_banner_patterns", ProvidesBannerPatterns::class)
     val RECIPES = register("minecraft:recipes", RecipesComponent::class)

src/main/kotlin/io/github/dockyardmc/protocol/decoders/PacketLengthDecoder.kt

@@ -18,7 +18,7 @@ class PacketLengthDecoder : ByteToMessageDecoder() {
         val length = buffer.readVarInt()
 
         // reset the reader index if we don't have enough bytes and wait for next part of the message to arrive and check again
-        if(length > buffer.readableBytes()) {
+        if (length > buffer.readableBytes()) {
             buffer.resetReaderIndex()
             return
         }
@@ -32,7 +32,8 @@ class PacketLengthDecoder : ByteToMessageDecoder() {
 
     override fun exceptionCaught(connection: ChannelHandlerContext, cause: Throwable) {
         log("Error occurred while decoding frame: ", LogType.ERROR)
-        log(cause.cause as Exception)
+        val exception = (if (cause.cause == null) cause else cause.cause) as Exception
+        log(exception)
         connection.channel().close().sync()
     }
 }