java.io.IOException: 현재 연결은 원격 호스트에 의해 강제로 끊겼습니다

        at sun.nio.ch.SocketDispatcher.read0(Native Method)

        at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43)

        at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)

        at sun.nio.ch.IOUtil.read(IOUtil.java:192)

        at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380)

        at io.netty.buffer.PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirectByteBuf.java:288)

        at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1100)

        at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:367)

        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:118)

        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:642)

        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:565)

        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:479)

        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:441)

        at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)

        at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)

구글링해봣는데 문제점을 찾지못했습니다요 큭