Cannot invoke "com.comphenix.protocol.wrappers.WrappedGameProfile.getName()" because "gameProfile" is null

Question

Cannot invoke "com.comphenix.protocol.wrappers.WrappedGameProfile.getName()" because "gameProfile" is null

3cxc opened this issue 2 months ago · 0 comments

Make sure you're doing the following

You're using the latest build for your server version
This isn't an issue caused by another plugin
You've checked for duplicate issues
You didn't use /reload

Describe the question
I'm speaking through a translator, so it might be awkward.
I used packet.getGameProfiles().readSafely(0); to retrieve logged-in player profiles, but in version 1.21.6, I got null.
I tested with the same plugin in version 1.18.2(git-Paper-388) and found that this method works normally.

Paper version: 1.21.6-48
ProtocolLib version: 5.4.0
Plugins: ProtocolLib , OfflineWhitelist

API method(s) used
WrappedGameProfile gameProfile = packet.getGameProfiles().readSafely(0);

Expected behavior
logged-in player profiles

Code

   public void addListener(){
        pm.addPacketListener(new PacketAdapter(
                plugin,
                ListenerPriority.HIGHEST,
                PacketType.Login.Client.START

        ) {
            @Override
            public void onPacketReceiving(PacketEvent event) {
                PacketContainer packet = event.getPacket();
                //get GameProfile
                WrappedGameProfile gameProfile = packet.getGameProfiles().readSafely(0);// <- NPE

                if (!Player_Whitelist.contains(gameProfile.getName()) && proxy_mode){
                    PacketContainer disconnectPacket = new PacketContainer(PacketType.Login.Server.DISCONNECT);
                    WrappedChatComponent component = WrappedChatComponent.fromText(KickMessage);
                    disconnectPacket.getChatComponents().write(0, component);

                    ProtocolLibrary.getProtocolManager().sendServerPacket(event.getPlayer(), disconnectPacket);

                    event.getPlayer().kickPlayer("No Whitelist");
                    event.setCancelled(true);
                }
            }
        });
    }

Additional context
error log(1.21):

[OfflineWhitelist] Unhandled exception occurred in onPacketReceiving(PacketEvent) for OfflineWhitelist
java.lang.NullPointerException: Cannot invoke "com.comphenix.protocol.wrappers.WrappedGameProfile.getName()" because "gameProfile" is null
at OfflineWhitelist-3.0.jar/com.github.offlineWhitelist.Packets.LoginPacketListener$1.onPacketReceiving(LoginPacketListener.java:30) ~[OfflineWhitelist-3.0.jar:?]
at ProtocolLib.jar/com.comphenix.protocol.injector.collection.InboundPacketListenerSet.invokeListener(InboundPacketListenerSet.java:25) ~[ProtocolLib.jar:?]
at ProtocolLib.jar/com.comphenix.protocol.injector.collection.PacketListenerSet.lambda$invoke$0(PacketListenerSet.java:123) ~[ProtocolLib.jar:?]
at ProtocolLib.jar/com.comphenix.protocol.timing.TimingTracker.lambda$static$0(TimingTracker.java:7) ~[ProtocolLib.jar:?]
at ProtocolLib.jar/com.comphenix.protocol.injector.collection.PacketListenerSet.invoke(PacketListenerSet.java:123) ~[ProtocolLib.jar:?]
at ProtocolLib.jar/com.comphenix.protocol.injector.collection.PacketListenerSet.invoke(PacketListenerSet.java:102) ~[ProtocolLib.jar:?]
at ProtocolLib.jar/com.comphenix.protocol.injector.PacketFilterManager.postPacketToListeners(PacketFilterManager.java:528) ~[ProtocolLib.jar:?]
at ProtocolLib.jar/com.comphenix.protocol.injector.PacketFilterManager.invokeInboundPacketListeners(PacketFilterManager.java:509) ~[ProtocolLib.jar:?]
at ProtocolLib.jar/com.comphenix.protocol.injector.netty.channel.NettyChannelInjector.processInboundInternal(NettyChannelInjector.java:455) ~[ProtocolLib.jar:?]
at ProtocolLib.jar/com.comphenix.protocol.injector.netty.channel.NettyChannelInjector.processInbound(NettyChannelInjector.java:439) ~[ProtocolLib.jar:?]
at ProtocolLib.jar/com.comphenix.protocol.injector.netty.channel.InboundPacketInterceptor.channelRead(InboundPacketInterceptor.java:47) ~[ProtocolLib.jar:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346) ~[netty-codec-4.1.118.Final.jar:4.1.118.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318) ~[netty-codec-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at ProtocolLib.jar/com.comphenix.protocol.injector.netty.channel.InboundProtocolReader.channelRead(InboundProtocolReader.java:25) ~[ProtocolLib.jar:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.handler.flow.FlowControlHandler.dequeue(FlowControlHandler.java:202) ~[netty-handler-4.1.118.Final.jar:4.1.118.Final]
at io.netty.handler.flow.FlowControlHandler.channelRead(FlowControlHandler.java:164) ~[netty-handler-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346) ~[netty-codec-4.1.118.Final.jar:4.1.118.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318) ~[netty-codec-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:289) ~[netty-handler-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.handler.flush.FlushConsolidationHandler.channelRead(FlushConsolidationHandler.java:152) ~[netty-handler-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1357) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:868) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:796) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:732) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:658) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562) ~[netty-transport-4.1.118.Final.jar:4.1.118.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:998) ~[netty-common-4.1.118.Final.jar:4.1.118.Final]
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.118.Final.jar:4.1.118.Final]
at java.base/java.lang.Thread.run(Thread.java:1570) ~[?:?]
[17:50:40 ERROR]: Parameters:
net.minecraft.network.protocol.login.ServerboundHelloPacket@2539be50[
name=cai_zi_you
profileId=00000000-0000-300a-9d82-345e629b4a31
]

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