There is no need to copy paste vanilla code when you can just call fetchBlockList asynchronously. This gives much cleaner code and still achieve same effect UrlConversionException doesn't exist in fabric loader <0.12.0, therefore changing the minimum fabric loader version requirement

This mod could only be loaded with fabric-loader 0.12.0+, but in metadata its dependency includes "fabricloader": ">=0.11.3", which is not accurate.

By the way, some 1.16.5 mods (at least those I'm using) are out-of-date and don't support fabric-loader 0.12.x, updating to 0.12.x will cause lots of errors that I'm not able to handle.

Error log:

2022-01-10 12:24:47,991 main ERROR Error processing element Queue ([Appenders: null]): CLASS_NOT_FOUND
2022-01-10 12:24:48,001 main WARN JNDI lookup class is not available because this JRE does not support JNDI. JNDI string lookups will not be available, continuing configuration. Ignoring java.lang.ClassCastException: class org.apache.logging.log4j.core.lookup.JndiLookup
[12:24:48] [main/INFO]: Loading for game Minecraft 1.16.5
[12:24:48] [main/INFO]: [FabricLoader] Loading 4 mods:
	- [email protected]
	- [email protected]
	- java@11
	- [email protected]
[12:24:48] [main/INFO]: SpongePowered MIXIN Subsystem Version=0.8.2 Source=file:/D:/%e6%b8%b8%e6%88%8f/MC/TestEnv/.minecraft/libraries/net/fabricmc/sponge-mixin/0.9.4+mixin.0.8.2/sponge-mixin-0.9.4+mixin.0.8.2.jar Service=Knot/Fabric Env=CLIENT
Exception in thread "main" java.lang.RuntimeException: Could not execute entrypoint stage 'preLaunch' due to errors, provided by 'chatlagfix'!
	at net.fabricmc.loader.entrypoint.minecraft.hooks.EntrypointUtils.invoke0(EntrypointUtils.java:50)
	at net.fabricmc.loader.entrypoint.minecraft.hooks.EntrypointUtils.invoke(EntrypointUtils.java:33)
	at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:143)
	at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:28)
Caused by: java.lang.NoClassDefFoundError: net/fabricmc/loader/impl/util/UrlConversionException
	at java.base/java.lang.Class.forName0(Native Method)
	at java.base/java.lang.Class.forName(Class.java:398)
	at net.fabricmc.loader.util.DefaultLanguageAdapter.create(DefaultLanguageAdapter.java:50)
	at net.fabricmc.loader.EntrypointStorage$NewEntry.lambda$getOrCreate$0(EntrypointStorage.java:106)
	at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1133)
	at net.fabricmc.loader.EntrypointStorage$NewEntry.getOrCreate(EntrypointStorage.java:104)
	at net.fabricmc.loader.EntrypointStorage.lambda$getEntrypointContainers$1(EntrypointStorage.java:191)
	at net.fabricmc.loader.entrypoint.EntrypointContainerImpl.getEntrypoint(EntrypointContainerImpl.java:37)
	at net.fabricmc.loader.entrypoint.minecraft.hooks.EntrypointUtils.invoke0(EntrypointUtils.java:47)
	... 3 more
Caused by: java.lang.ClassNotFoundException: net.fabricmc.loader.impl.util.UrlConversionException
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:583)
	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
	at net.fabricmc.loader.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:175)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
	... 12 more

the creator of an alternate fix mod says that the API is not fixed (https://github.com/KosmX/non-blocking_chat/issues/1), in contradiction with what this mod's modrinth page says. I'm just looking for a quick clarification as to that.

The mod version 2.0.2 still needs java 17, but Minecraft 1.17 crashed with "Java runtime mismatch" when I tried to launch the game with Java 17.