error in java

[TomCodder]

I am have this error keep show to me in console of Battle ?
what fix for it need some help ?????

Код:

[05:55:10|ERROR|nioEventLoopGroup-2-1    |io.netty.util.ResourceLeakDetector             ] LEAK: ByteBuf.release() was not called before it's garbage-collected.
Recent access records: 1
#1:
    io.netty.buffer.AdvancedLeakAwareByteBuf.writeBytes(AdvancedLeakAwareByteBuf.java:559)
    io.netty.buffer.Unpooled.copiedBuffer(Unpooled.java:421)
    ru.pb.battle.network.client.BattleClientConnection.channelRead0(BattleClientConnection.java:81)
    ru.pb.battle.network.client.BattleClientConnection.channelRead0(BattleClientConnection.java:22)
    io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:103)
    io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:338)
    io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:324)
    io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:785)
    io.netty.channel.nio.AbstractNioMessageChannel$NioMessageUnsafe.read(AbstractNioMessageChannel.java:93)
    io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:485)
    io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:452)
    io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:346)
    io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101)
    java.lang.Thread.run(Unknown Source)
Created at:
    io.netty.util.ResourceLeakDetector.open(ResourceLeakDetector.java:190)
    io.netty.buffer.AbstractByteBufAllocator.toLeakAwareBuffer(AbstractByteBufAllocator.java:42)
    io.netty.buffer.UnpooledByteBufAllocator.newDirectBuffer(UnpooledByteBufAllocator.java:55)
    io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:155)
    io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:146)
    io.netty.buffer.Unpooled.directBuffer(Unpooled.java:127)
    io.netty.buffer.Unpooled.copiedBuffer(Unpooled.java:417)
    ru.pb.battle.network.client.BattleClientConnection.channelRead0(BattleClientConnection.java:81)
    ru.pb.battle.network.client.BattleClientConnection.channelRead0(BattleClientConnection.java:22)
    io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:103)
    io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:338)
    io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:324)
    io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:785)
    io.netty.channel.nio.AbstractNioMessageChannel$NioMessageUnsafe.read(AbstractNioMessageChannel.java:93)
    io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:485)
    io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:452)
    io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:346)
    io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101)
    java.lang.Thread.run(Unknown Source)

[PROGRAMMATOR]

Give me an example of channelRead method.

[TomCodder]

Give me an example of channelRead method.

[SRC="java"]import io.netty.channel.socket.DatagramPacket;

import java.net.InetSocketAddress;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import ru.pb.battle.controllers.RoomController;
import ru.pb.battle.models.Player;
import ru.pb.battle.models.Room;
import ru.pb.battle.utils.ByteBuffer;

/**
* @author DarkSkeleton
*/
public class BattleClientConnection extends SimpleChannelInboundHandler<DatagramPacket> {

private static final Logger log = LoggerFactory.getLogger(BattleClientConnection.class);

@Override
protected void channelRead0(ChannelHandlerContext ctx, DatagramPacket msg) throws Exception {
ByteBuf bb = msg.content();
byte opcode = bb.readByte();
switch(opcode)
{
case 65: {
// ByteBuffer _buffer2 = new ByteBuffer();
// _buffer2.writeC((byte)66);
// _buffer2.writeC((byte) 0);
// _buffer2.writeB(new byte[5]);
// _buffer2.writeC((byte) 0x0b);
// _buffer2.writeB(new byte[3]);
// ctx.writeAndFlush(new DatagramPacket(Unpooled.copiedBuffer(_buffer2.getData(), 0, _buffer2.getData().length), msg.sender()));
Room room = RoomController.getInstance().getRoom(msg.sender().getAddress());
if(room != null) {
if(room.inetAddress.equals(msg.sender().getAddress())) {
ByteBuffer _buffer = new ByteBuffer();
_buffer.writeC((byte) 66);
_buffer.writeC((byte) 0);
_buffer.writeB(new byte[5]);
_buffer.writeC((byte) 0x0b);
_buffer.writeB(new byte[3]);
room.isConnected = true;
room.port = msg.sender().getPort();
ctx.writeAndFlush(new DatagramPacket(Unpooled.copiedBuffer(_buffer.getData(), 0, _buffer.getData().length), msg.sender()));
} else {
Player player = RoomController.getInstance().getPlayer(msg.sender().getAddress());
if(player != null) {
ByteBuffer _buffer = new ByteBuffer();
_buffer.writeC((byte) 66);
_buffer.writeC((byte) 0);
_buffer.writeB(new byte[5]);
_buffer.writeC((byte) 0x0b);
_buffer.writeB(new byte[3]);
player.isConnected = true;
player.playerPort = msg.sender().getPort();
ctx.writeAndFlush(new DatagramPacket(Unpooled.copiedBuffer(_buffer.getData(), 0, _buffer.getData().length), msg.sender()));
}
}
}
break;
}
case (byte) 131:
case (byte) 132:
case 84:
case 97:
case 4:
case 3: {
Room room = RoomController.getInstance().getRoom(msg.sender().getAddress());
if(room != null) {
if(room.inetAddress.equals(msg.sender().getAddress())) {
for(Player player : room.getPlayers().values()) {
if(player.isActive) {
if(player.playerPort > 0) {
ctx.writeAndFlush(new PBUDPServerPacket(opcode, Unpooled.copiedBuffer(msg.content()), new InetSocketAddress(player.playerIP, player.playerPort)).getPacket());
}
}
}
} else {
if(room.isActive) {
if(room.port > 0) {
ctx.writeAndFlush(new PBUDPServerPacket(opcode, Unpooled.copiedBuffer(msg.content()), new InetSocketAddress(room.inetAddress, room.port)).getPacket());
}
}
}
}
break;
}
case 67: {
Player player = RoomController.getInstance().getPlayer(msg.sender().getAddress());
if(player != null) {
player.isActive = false;
player.isConnected = false;
}
break;
}

}
bb.release();
}

@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
cause.printStackTrace();
// We don't close the channel because we can keep serving requests.
}
}
[/SRC]

so what the fix of this error what called JavaLeak ?
@PROGRAMMATOR

[PISTOLA]

Try this code:

Код:

ResourceLeakDetector.setLevel(Level.DISABLED);

If it does not work, try using this:

Код:

if (ResourceLeakDetector.isEnabled())
            ResourceLeakDetector.setEnabled(false);

[TomCodder]

Try this code:

Код:

ResourceLeakDetector.setLevel(Level.DISABLED);

If it does not work, try using this:

Код:

if (ResourceLeakDetector.isEnabled())
            ResourceLeakDetector.setEnabled(false);

Thx but i need to fix java leak not just stop LeakDetector , i enabled it to where is the leak to stop it cause many crashes ,i need some help to fix it PLZ

@PROGRAMMATOR @Awiion

[DarkSkeleton12]

There are 2 ways:

1. Use this after all read operations in the try {} finally{}

Код:

finally {
ReferenceCountUtil.release(msg);
}

2. Use .slice ()

Код:

ByteBuf bb = msg.content().slice();

[TomCodder]

There are 2 ways:

1. Use this after all read operations in the try {} finally{}

Код:

finally {
ReferenceCountUtil.release(msg);
}

2. Use .slice ()

Код:

ByteBuf bb = msg.content().slice();

THX , I will try this fix and I will inform you with the results , but I have Another problem is the disappearance of channels from the servers after running the server for a period of time or the entry of a number of players, and this is one of the worst problems that meet me