[18:40:28 ERROR]: [NeverLag] Unhandled exception occured in onPacketReceiving(PacketEvent) for NeverLag
java.lang.NullPointerException
        at jiongjionger.NeverLag.getMethod(NeverLag.java:616) ~[%5B优化反作弊%5DNeverLag1.3.0_ANSI.jar:?]
        at jiongjionger.NeverLag$1.onPacketReceiving(NeverLag.java:368) ~[%5B优化反作弊%5DNeverLag1.3.0_ANSI.jar:?]
        at com.comphenix.protocol.injector.SortedPacke
tListenerList.invokeReceivingListener(SortedPacketListenerList.java:114) [%5B前置%5DProtocolLib.jar:?]
        at com.comphenix.protocol.injector.SortedPacketListenerList.invokePacketRecieving(SortedPacketListenerList.java:67) [%5B前置%5DProtocolLib.jar:?]
        at com.co
mphenix.protocol.injector.PacketFilterManager.handlePacket(PacketFilterManager.java:639) [%5B前置%5DProtocolLib.jar:?]
        at com.comphenix.protocol.injector.PacketFilterManager.invokePacketRecieving(PacketFilterManager.java:606) [%5B前置%5DProtocolLib.jar:?]
        at
com.comphenix.protocol.compat.netty.independent.NettyProtocolInjector.packetReceived(NettyProtocolInjector.java:332) [%5B前置%5DProtocolLib.jar:?]
        at com.comphenix.protocol.compat.netty.independent.NettyProtocolInjector.onPacketReceiving(NettyProtocolInjecto
r.java:297) [%5B前置%5DProtocolLib.jar:?]
        at com.comphenix.protocol.compat.netty.independent.NettyChannelInjector.decode(NettyChannelInjector.java:546) [%5B前置%5DProtocolLib.jar:?]
        at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecod
er.java:232) [ByteToMessageDecoder.class:?]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:131) [ByteToMessageDecoder.class:?]
        at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerConte
xt.java:337) [DefaultChannelHandlerContext.class:?]
        at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [DefaultChannelHandlerContext.class:?]
        at com.comphenix.protocol.compat.netty.independent.NettyChannel
Injector$4.channelRead(NettyChannelInjector.java:278) [%5B前置%5DProtocolLib.jar:?]
        at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [DefaultChannelHandlerContext.class:?]
        at io.netty.channel.DefaultCh
annelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [DefaultChannelHandlerContext.class:?]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:173) [ByteToMessageDecoder.class:?]
        at io.netty.channel.Def
aultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [DefaultChannelHandlerContext.class:?]
        at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [DefaultChannelHandlerContext.cla
ss:?]
        at io.netty.handler.timeout.ReadTimeoutHandler.channelRead(ReadTimeoutHandler.java:149) [ReadTimeoutHandler.class:?]
        at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [DefaultChannelHandlerContext
.class:?]
        at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [DefaultChannelHandlerContext.class:?]
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:785) [DefaultChann
elPipeline.class:?]
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:100) [AbstractNioByteChannel$NioByteUnsafe.class:?]
        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:480) [NioEventLoop
.class:?]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:447) [NioEventLoop.class:?]
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:341) [NioEventLoop.class:?]
        at io.netty.util.concurrent.SingleThreadEventExe
cutor$2.run(SingleThreadEventExecutor.java:101) [SingleThreadEventExecutor$2.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_211]
[18:40:28 ERROR]: Parameters:
  net.minecraft.network.play.client.C10PacketCreativeInventoryAction@2d37cab[
    field_149629_a=44
    field_149628_b=<null>

    timestamp=1568025628161


好像是反作弊NeverLag跟DProtocolLib这个前置有啥冲突了
NeverLag每次执行某个操作时会这样一下，玩家也没啥反应，就后台会过一阵子弹出来一次，有时好几遍！
大佬看看这是咋了！？

相似的原因，https://www.mcbbs.net/thread-792019-1-1.html

建议删除 NeverLag 直接更换其他优化插件

NeverLag插件中onPacketReceiving错误  先转码看看问题还会不会出现

NeverLag里没找到onPacketReceiving呢。。

NeverLag
onPacketReceiving方法错误

就是插件本身的错误...可能和你的版本不兼容

1.如果不影响使用请使用本插件屏蔽
http://www.mcbbs.net/thread-813418-1-1.html
http://dev.bukkit.org/bukkit-plugins/console-spam-fix/

2.你也可以换用其他清理插件
https://www.mcbbs.net/thread-715006-1-1.html
https://www.mcbbs.net/thread-173758-1-1.html
等等

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