Failed to initialize a channel. Closing: [id: 0x67a4c054, L:/127.0.0.1:8182 - R:/127.0.0.1:47284]
java.lang.NoSuchMethodError: 'void io.netty.handler.codec.DefaultHeadersImpl.<init>(io.netty.util.HashingStrategy, io.netty.handler.codec.ValueConverter, io.netty.handler.codec.DefaultHeaders$NameValidator, int, io.netty.handler.codec.DefaultHeaders$ValueValidator)'
	at io.netty.handler.codec.http.DefaultHttpHeaders.<init>(DefaultHttpHeaders.java:86)
	at io.netty.handler.codec.http.DefaultHttpHeaders.<init>(DefaultHttpHeaders.java:77)
	at io.netty.handler.codec.http.DefaultHttpMessage.<init>(DefaultHttpMessage.java:41)
	at io.netty.handler.codec.http.DefaultHttpResponse.<init>(DefaultHttpResponse.java:64)
	at io.netty.handler.codec.http.DefaultFullHttpResponse.<init>(DefaultFullHttpResponse.java:62)
	at io.netty.handler.codec.http.DefaultFullHttpResponse.<init>(DefaultFullHttpResponse.java:57)
	at io.netty.handler.codec.http.DefaultFullHttpResponse.<init>(DefaultFullHttpResponse.java:43)
	at io.netty.handler.codec.http.HttpObjectAggregator.<clinit>(HttpObjectAggregator.java:89)
	at org.apache.tinkerpop.gremlin.server.channel.WebSocketChannelizer.configure(WebSocketChannelizer.java:100)
	at org.apache.tinkerpop.gremlin.server.AbstractChannelizer.initChannel(AbstractChannelizer.java:176)
	at org.apache.tinkerpop.gremlin.server.AbstractChannelizer.initChannel(AbstractChannelizer.java:80)
	at io.netty.channel.ChannelInitializer.initChannel(ChannelInitializer.java:129)
	at io.netty.channel.ChannelInitializer.handlerAdded(ChannelInitializer.java:112)
	at io.netty.channel.AbstractChannelHandlerContext.callHandlerAdded(AbstractChannelHandlerContext.java:1114)
	at io.netty.channel.DefaultChannelPipeline.callHandlerAdded0(DefaultChannelPipeline.java:609)
	at io.netty.channel.DefaultChannelPipeline.access$100(DefaultChannelPipeline.java:46)
	at io.netty.channel.DefaultChannelPipeline$PendingHandlerAddedTask.execute(DefaultChannelPipeline.java:1463)
	at io.netty.channel.DefaultChannelPipeline.callHandlerAddedForAllHandlers(DefaultChannelPipeline.java:1115)
	at io.netty.channel.DefaultChannelPipeline.invokeHandlerAddedIfNeeded(DefaultChannelPipeline.java:650)
	at io.netty.channel.AbstractChannel$AbstractUnsafe.register0(AbstractChannel.java:514)
	at io.netty.channel.AbstractChannel$AbstractUnsafe.access$200(AbstractChannel.java:429)
	at io.netty.channel.AbstractChannel$AbstractUnsafe$1.run(AbstractChannel.java:486)
	at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:174)
	at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:167)
	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:470)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:569)
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at java.base/java.lang.Thread.run(Thread.java:829)
Failed to initialize a channel. Closing: [id: 0x29f956e1, L:/127.0.0.1:8182 - R:/127.0.0.1:47282]
java.lang.NoClassDefFoundError: Could not initialize class io.netty.handler.codec.http.HttpObjectAggregator
	at org.apache.tinkerpop.gremlin.server.channel.WebSocketChannelizer.configure(WebSocketChannelizer.java:100)
	at org.apache.tinkerpop.gremlin.server.AbstractChannelizer.initChannel(AbstractChannelizer.java:176)
	at org.apache.tinkerpop.gremlin.server.AbstractChannelizer.initChannel(AbstractChannelizer.java:80)
	at io.netty.channel.ChannelInitializer.initChannel(ChannelInitializer.java:129)
	at io.netty.channel.ChannelInitializer.handlerAdded(ChannelInitializer.java:112)
	at io.netty.channel.AbstractChannelHandlerContext.callHandlerAdded(AbstractChannelHandlerContext.java:1114)
	at io.netty.channel.DefaultChannelPipeline.callHandlerAdded0(DefaultChannelPipeline.java:609)
	at io.netty.channel.DefaultChannelPipeline.access$100(DefaultChannelPipeline.java:46)
	at io.netty.channel.DefaultChannelPipeline$PendingHandlerAddedTask.execute(DefaultChannelPipeline.java:1463)
	at io.netty.channel.DefaultChannelPipeline.callHandlerAddedForAllHandlers(DefaultChannelPipeline.java:1115)
	at io.netty.channel.DefaultChannelPipeline.invokeHandlerAddedIfNeeded(DefaultChannelPipeline.java:650)
	at io.netty.channel.AbstractChannel$AbstractUnsafe.register0(AbstractChannel.java:514)
	at io.netty.channel.AbstractChannel$AbstractUnsafe.access$200(AbstractChannel.java:429)
	at io.netty.channel.AbstractChannel$AbstractUnsafe$1.run(AbstractChannel.java:486)
	at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:174)
	at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:167)
	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:470)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:569)
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at java.base/java.lang.Thread.run(Thread.java:829)