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Attempt to avoid npe during handshake

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This commit is contained in:
Prototik 2015-06-01 18:30:50 +07:00
parent 939bb4b7da
commit 4b0afe6ff9
1 changed files with 8 additions and 7 deletions
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15
patches/cpw/mods/fml/common/network/internal/HandshakeCompletionHandler.java.patch
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@ -1,18 +1,19 @@
--- ../src-base/minecraft/cpw/mods/fml/common/network/internal/HandshakeCompletionHandler.java
+++ ../src-work/minecraft/cpw/mods/fml/common/network/internal/HandshakeCompletionHandler.java
@@ -13,9 +13,15 @@
@@ -13,8 +13,14 @@
@Override
protected void channelRead0(ChannelHandlerContext ctx, CompleteHandshake msg) throws Exception
{
- NetworkDispatcher dispatcher = ctx.channel().attr(NetworkDispatcher.FML_DISPATCHER).getAndRemove();
- dispatcher.completeHandshake(msg.target);
+ // Cauldron start - attempt to fix race condition with attr being null
+ Object attr = ctx.channel().attr(NetworkDispatcher.FML_DISPATCHER);
+ io.netty.util.Attribute<NetworkDispatcher> attr = ctx.channel().attr(NetworkDispatcher.FML_DISPATCHER);
+ if (attr != null)
+ {
NetworkDispatcher dispatcher = ctx.channel().attr(NetworkDispatcher.FML_DISPATCHER).getAndRemove();
dispatcher.completeHandshake(msg.target);
}
+ // Cauldron end
+ NetworkDispatcher dispatcher = attr.getAndRemove();
+ if (dispatcher != null) dispatcher.completeHandshake(msg.target);
+ }
+ // Cauldron end
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception