Garbage accumulating and not being cleared

[Gabo6480]

Server version

Paper 1.19.2

TAB version

3.1.4

Describe the bug

I'm having a problem in my server where when I install TAB, garbage keeps accumulating until the whole ram gets filled. The only way I can clear this ram is either restarting or using spark's /spark heapsummary command which trigger the GarbageCollector manually.

I should note that I'm using quite a lot of Relational Papi placeholders and custom JavaScript placeholders on the player's nametag, and it apparently becomes more severe when loading more chunks and when there are more players online.

Expected behavior

Garbage not being able to be cleared

Steps to reproduce

Step 1: Install TAB with PAPI
Step 2: Use placeholders that produce a lot of garbage internally in the player's nametag?
Step 3: Play with many players.
Step 4: Flying around generating chunks seems to make it worse.
Step 5: Not profit.

Additional info

Plugin Info:
Auto-Tune [Version: 0.14.0]
BalancedVillagerTrades [Version: 2.0-beta7]
BedrockPlayerManager [Version: 1.4]
ChatInjector [Version: 1.0.6]
CoreProtect [Version: 21.2]
Corpses [Version: 2022.10]
CraniumCollection [Version: 1.1]
DeathMessages [Version: 1.4.15]
DiscordSRV [Version: 1.26.0-SNAPSHOT]
EmojiReplacer [Version: 1.0]
Essentials [Version: 2.19.7]
EssentialsAntiBuild [Version: 2.19.7]
EssentialsChat [Version: 2.19.7]
EssentialsSpawn [Version: 2.19.7]
Factions [Version: 1.6.9.5-3.0.5-RC]
Geyser-Spigot [Version: 2.0.7-SNAPSHOT]
Harbor [Version: 1.6.3]
InteractiveChat [Version: 4.2.3.1]
InteractiveChatDiscordSrvAddon [Version: 4.2.3.1]
ItemsAdder [Version: 3.2.3m]
LoneLibs [Version: 1.0.21]
LuckPerms [Version: 5.4.46]
PickMeUp [Version: 1.3.7]
PlaceholderAPI [Version: 2.11.2]
PlayerNPC [Version: 2022.8]
ProtocolLib [Version: 5.0.0-SNAPSHOT-b600]
ReviveMe [Version: 2.3.3]
ServerBooster [Version: 1.1.3]
SkinsRestorer [Version: 14.2.3]
StreamingDrops [Version: 10.6]
TAB [Version: 3.1.4]
Vault [Version: 1.7.3-b131]
ViaBackwards [Version: 4.4.2]
ViaVersion [Version: 4.4.2]
ViaVersionStatus [Version: 3.11]
WhitelistPlayers [Version: 1.0.3]
WorldEdit [Version: 7.2.12+6240-87f4ae1]
emotecraft [Version: 2.2.0]
floodgate [Version: 2.2.0-SNAPSHOT (b73-4f36112)]
nLogin [Version: 10.1.7]
spark [Version: 1.9.25]
voicechat [Version: 1.19.2-2.3.6]
voicechat_interaction [Version: 1.1.0]

Papi Expansions:
changeoutput [Author: Kaliber, Version: 1.2.2]
deathmessages [Author: [Joshb_, MrShawn], Version: 1.4.15]
discordsrv [Author: [Scarsz, Androkai, Vankka], Version: 1.26.0-SNAPSHOT]
factionsuuid [Author: drtshock, Version: 1.6.9.5-3.0.5-RC]
iaplayerstat [Author: LoneDev, Version: 1.0.1]
img [Author: LoneDev, Version: 1.0.1]
interactivechat [Author: loohp, Version: 1.0.0]
javascript [Author: clip, Version: 2.1.0]
luckperms [Author: Luck, Version: 5.1-R2]
player [Author: clip, Version: 2.0.3]
playerlist [Author: Tanguygab, Version: 2.1]
relcon [Author: aBooDyy, Version: 1.1]
releval [Author: Gabo6480, Version: 1.1]
reviveme [Author: FavioMC19, Version: 2.3.3]
servertime [Author: GoldenGamerZone, Version: 1.0]
spark [Author: Luck, Version: 1.9.25]
streamingdrops [Author: [Morelaid], Version: 10.6]
string [Author: BlitzOffline, Version: 1.0.0]
tab [Author: NEZNAMY, Version: 3.1.4]
vault [Author: clip, Version: 1.7.1]
voicechat [Author: Max Henkel, Matthew Wells, Version: 1.19.2-2.3.6]

https://spark.lucko.me/Hn62WMKB4y

Checklist

• I am running latest version of the plugin
• I have read the wiki to make sure it's not an issue with configuration
• I have read the Compatibility wiki page and am not trying to run the plugin on an unsupported server version / platform

[NEZNAMY]

Send heap dump if you think TAB has a memory leak.

[Gabo6480]

https://drive.google.com/file/d/1R-6Xk9q4tP6X-SqmNaBEyGaw85qm-5Jr/view?usp=sharing

[NEZNAMY]

While the first object references the second one, so that would be a total of something over 20MB. Far from 5GB.

Only 2 player objects are in the memory, assuming you had 2 online players, no memory leak is present.

[Gabo6480]

Then what is filling that much space?

[NEZNAMY]

Chunks and other things not related to TAB.

[Gabo6480]

What tool are you using to visualize the heapdump?

[Gabo6480]

Then again, It might be that TAB is not the direct culprit, but an interaction between TAB and something else. Because the garbage problem only happens when I have TAB present.

[NEZNAMY]

I used YourKit.

[Gabo6480]

Or what do you think could be going on? If it isn't TAB or a negative interaction of it, then either PAPI or the placeholders could be at fault.

[Gabo6480]

Alright, the first suspect has appeared PlaceholderAPI/Javascript-Expansion#61

[NEZNAMY]

Perfect, can we close this? Or can you try without javascript placeholders?