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Do not fail if COMMAND command fails on startup

See original GitHub issue

hello,i use lettuce to connect to tile38,but there is some exception. i can use normal with the tile38-cli. my tile38 version is 1.10.0, lettuce version is lettuce-core 5.0.1.RELEASE. my java code is

package com.hdnav;
import io.lettuce.core.dynamic.Commands;

public interface KeyCommands extends Commands{
	String get(String key);
}


package com.hdnav;
import io.lettuce.core.RedisClient;
import io.lettuce.core.dynamic.RedisCommandFactory;

public class Tile{
	public static void main(String[] args) {
		RedisClient client = RedisClient.create("redis://190.0.0.35:9851");
		RedisCommandFactory factory = new RedisCommandFactory(client.connect());
	        KeyCommands commands  = factory.getCommands(KeyCommands.class);
		String value = commands.get("Walter");
		System.out.println(value);
	}

}

my log is

Exception in thread "main" io.lettuce.core.RedisCommandExecutionException: ERR unknown command 'COMMAND'
	at io.lettuce.core.LettuceFutures.awaitOrCancel(LettuceFutures.java:122)
	at io.lettuce.core.FutureSyncInvocationHandler.handleInvocation(FutureSyncInvocationHandler.java:62)
	at io.lettuce.core.internal.AbstractInvocationHandler.invoke(AbstractInvocationHandler.java:80)
	at com.sun.proxy.$Proxy0.command(Unknown Source)
	at io.lettuce.core.dynamic.RedisCommandFactory.getCommands(RedisCommandFactory.java:129)
	at io.lettuce.core.dynamic.RedisCommandFactory.<init>(RedisCommandFactory.java:121)
	at io.lettuce.core.dynamic.RedisCommandFactory.<init>(RedisCommandFactory.java:104)
	at com.hdnav.Tile.main(Tile.java:16)
Caused by: io.lettuce.core.RedisCommandExecutionException: ERR unknown command 'COMMAND'
	at io.lettuce.core.protocol.AsyncCommand.completeResult(AsyncCommand.java:118)
	at io.lettuce.core.protocol.AsyncCommand.complete(AsyncCommand.java:109)
	at io.lettuce.core.protocol.CommandHandler.decode(CommandHandler.java:558)
	at io.lettuce.core.protocol.CommandHandler.channelRead(CommandHandler.java:511)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
	at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
	at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1359)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:935)
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:138)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:645)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:580)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:497)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:459)
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
	at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:138)
	at java.lang.Thread.run(Thread.java:745)

the exception run at this line RedisCommandFactory factory = new RedisCommandFactory(client.connect());