Minecraft 1.7 included debugging features that show detailed information about network packets. It was a wonderful feature and we're really thankful for it. However it's not so useful anymore since it only shows packet IDs, not parameters.
It needs to be enabled by specifying a log4j2 configuration file. This can be done through the launcher for clients, or as a commandline parameter for servers, as detailed in this page. This is a vanilla feature so please don't close this ticket for that reason. Thanks.
The output in 1.7 looked like this:
[17:36:51] [Netty Client IO #1/DEBUG]: IN: [PLAY:2] gj[message='TextComponent{text='', siblings=[TextComponent{text='<dequis> have a nice day!', siblings=[], style=Style{hasParent=true, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null}}], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null}}']The output in 1.8 for the same kind of packet (incoming chat) looks like this:
[18:05:22] [Netty Epoll Client IO #0/DEBUG]: IN: [PLAY:2] jaEven packets that have no parameters used to be displayed as "xx[]", now they are just "xx"
This is a regression introduced in snapshot 14w21b. The last working released version is 1.7.10, the last working snapshot is 14w20b (one after 1.7.10). 1.8.1-pre2 is affected too.
Comments 3
It's still an issue but I wouldn't expect mojang to care at all (can't blame them, the fact that this feature existed was unusually generous to begin with), and personally I don't care either. Most people who would care have other tools to replace this functionality.
You can keep it closed (or change the resolution to something else)
Is this still an issue in the current Minecraft Snapshot 15w47c or later? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.