import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import org.slf4j.Logger;
<BUG>import org.slf4j.LoggerFactory;
import tachyon.Constants;
import tachyon.conf.TachyonConf;</BUG>
import tachyon.worker.BlockHandler;
import tachyon.worker.BlocksLocker;

import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.base.Preconditions;
import tachyon.Constants;
import tachyon.worker.BlockHandler;
import tachyon.worker.BlocksLocker;
