![[Mod] Riley Park](../../../data/avatars/users/81743.png)
[Mod] Riley Park
- kashike
- kashike
- America/Vancouver
- Yes
- No
MC-98180![[Mojang] Grum (Erik Broes)](../../../data/assets/gravatar/grum.png){kind=small}
Sending a null header or footer value when sending packet 0x47 will result in an NPE, due to the value not being checked before being turned into a formatted string:
public void handlePlayerListHeaderFooter(S47PacketPlayerListHeaderFooter packetIn) { this.gameController.ingameGUI.getTabList().setHeader(packetIn.getHeader().getFormattedText().length() == 0 ? null : packetIn.getHeader()); this.gameController.ingameGUI.getTabList().setFooter(packetIn.getFooter().getFormattedText().length() == 0 ? null : packetIn.getFooter()); }The formatted text length is never zero - getFormattedText adds §r even if the provided text is empty - which means that there is no way to remove the header or footer, just make empty text/§r appear. Sending null, if it didn't call getFormattedText first, would work as intended.
This is still an issue as of 17w50a.
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Thank you for your report!
However, this issue has been closed as a Invalid.Bug reports are only accepted in English, sorry.
Feel free to create a new report if you can speak English.Quick Links:
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![[Mod] Pokechu22](../../../data/avatars/users/92931.png){kind=small}
Apparently actually fixed in 1.11.1, and not 1.11.2. [Mod] Riley Park doesn't remember why 1.11.2 was added. (checked and manually confirmed that a fix was present in 1.11.1 and not 1.11.0)
Could you explain why you marked this as invalid? The formatted text length is never zero - getFormattedText adds §r even if the provided text is empty - which means that there is no way to remove the header or footer, just make empty text/§r appear.
This was fixed in 1.11 - I forgot to close this issue.
Starting with Minecraft 1.9 (and most likely 1.9 snapshots) text components are not directly deserialised - instead they pass through a non-lenient `JsonReader`. When sending a `null` header and footer from a server to a vanilla client, this exception occurs:
When using the lenient deserialiser: https://gist.github.com/kashike/ce389d81d105cbf2b1c484e12ab30160
When using the same deserialisation (`GSON.fromJson`) as 1.8: https://gist.github.com/kashike/82489e367750fa70825d3d91f772de48
The issue introduced with 1.9 makes it impossible to send a `null` `Component`, further removing the ability to *remove* the header and/or footer - it is still only possible to make it empty (due to it calling `getFormattedText`, which `isEmpty` is *never* true on), as described earlier in the issue.
The original issue here still remains and is still within the client packet listener, due to it calling `getFormattedText` on a null `Component`:
This is still an issue as of 17w50a.
Confirmed for 1.14 and 1.14.1-pre2.
I've attached two screenshots of this, based on the last screenshot example in https://bugs.mojang.com/browse/MC-48904 (found that issue before this one).
/tellraw @p [{"text":"["},{"text":"Tip","color":"green"},{"text":"] Follow us on "},{"text":"Twitter","color":"aqua"},{"text":" at: "},{"text":"www.twitter.com/SurvivalCraftMS","color":"dark_aqua"},{"text":" for the latest updates to our server!"}]Thank you for your report!
We're actually already tracking this issue in
MCPE-67169, so I've resolved and linked this ticket as a duplicate.If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
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Thank you for your report!
We're actually already tracking this issue in
MCPE-67169, so I've resolved and linked this ticket as a duplicate.If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki
Please keep discussions on-topic. Off-topic comments and chatter may be hidden to avoid clutter, enabling us to focus on the information relevant to the bug.
Thank you for your report!
However, this issue is Incomplete.
Your report does not contain enough information. As such, we're unable to understand or reproduce the problem.
You are welcome to create a new ticket about your issue with more detailed information. In case of a game crash, be sure to attach the crash report from minecraft/crash-reports/crash-<DATE>-client.txt.
However, please review the Bug Tracker Guidelines before creating new reports. Be sure to search for an existing issue as it is likely to have already been reported.
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