Using incremental CMS is deprecated and will likely be removed

[DarkMagic017]

Hi, I'm relatively new to coding mods. I did a lot of coding plugins but wanted a change. Anyway, I was watching a tutorial on how to make a Minecraft 1.12.2 mod and did everything he did and when I went to run my demo, I got an error saying "Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release" I looked up the error and found some solves but none that worked for me. Here is my code. Sorry If this post is messy.

 

package com.DarkMagic017.tutorialmod;

import com.DarkMagic017.tutorialmod.proxy.CommonProxy;
import com.DarkMagic017.tutorialmod.util.Reference;

import net.minecraft.client.main.Main;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventHandler;
import net.minecraftforge.fml.common.Mod.Instance;
import net.minecraftforge.fml.common.SidedProxy;
import net.minecraftforge.fml.common.event.FMLInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPostInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;

@Mod(modid = Reference.MOD_ID, name = Reference.NAME, version = Reference.VERSION)
public class main {

	@Instance
	public static Main instance;
	
	@SidedProxy(clientSide = Reference.CLIENT_PROXY_CLASS, serverSide = Reference.COMMON_PROXY_CLASS)
	public static CommonProxy proxy;
	
	@EventHandler
	public static void PreInit(FMLPreInitializationEvent event) {
		

		
	}
	
	
	@EventHandler
	public static void init(FMLInitializationEvent event) {
		
	
	}
	
	
	@EventHandler
	public static void Postinit(FMLPostInitializationEvent event) {
		
	
	}
	
	
}

package com.DarkMagic017.tutorialmod.util;

public class Reference {

		public static final String MOD_ID = "tm";
	public static final String NAME = "Tutorial Mod";
	public static final String VERSION = "1.0";
	public static final String ACCEPTED_VERSIONS = "[1.12.2]";
	public static final String CLIENT_PROXY_CLASS = "com.DarkMagic017.tutorialmod.client.ClientProxy";
	public static final String COMMON_PROXY_CLASS = "com.DarkMagic017.tutorialmod.common.CommonProxy";
}

package com.DarkMagic017.tutorialmod.proxy;

public class ClientProxy extends CommonProxy {

	
	
}

package com.DarkMagic017.tutorialmod.proxy;

public class CommonProxy {

}

[
{
  "modid": "tm",
  "name": "Tutorial Mod",
  "description": "my very first mod.",
  "version": "1.0",
  "mcversion": "1.12.2",
  "url": "",
  "updateUrl": "",
  "authorList": ["DarkMagic"],
  "credits": "Thanks to loremaster for this awesome tutorial! Sub to him!",
  "logoFile": "",
  "screenshots": [],
  "dependencies": []
}
]

Here is my console output

 

[15:42:47] [main/INFO] [GradleStart]: Extra: []
[15:42:47] [main/INFO] [GradleStart]: Running with arguments: [--userProperties, {}, --assetsDir, C:/Users/Declan/.gradle/caches/minecraft/assets, --assetIndex, 1.12, --accessToken{REDACTED}, --version, 1.12.2, --tweakClass, net.minecraftforge.fml.common.launcher.FMLTweaker, --tweakClass, net.minecraftforge.gradle.tweakers.CoremodTweaker]
[15:42:47] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[15:42:47] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[15:42:47] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.gradle.tweakers.CoremodTweaker
[15:42:47] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[15:42:47] [main/INFO] [FML]: Forge Mod Loader version 14.23.5.2768 for Minecraft 1.12.2 loading
[15:42:47] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_152, running on Windows 10:amd64:10.0, installed at C:\Program Files\Java\jre1.8.0_152
[15:42:47] [main/ERROR] [FML]: Apache Maven library folder was not in the format expected. Using default libraries directory.
[15:42:47] [main/ERROR] [FML]: Full: C:\Users\Declan\.gradle\caches\modules-2\files-2.1\org.apache.maven\maven-artifact\3.5.3\7dc72b6d6d8a6dced3d294ed54c2cc3515ade9f4\maven-artifact-3.5.3.jar
[15:42:47] [main/ERROR] [FML]: Trimmed: c:/users/declan/.gradle/caches/modules-2/files-2.1/org.apache.maven/maven-artifact/3.5.3/
[15:42:47] [main/INFO] [FML]: Managed to load a deobfuscated Minecraft name- we are in a deobfuscated environment. Skipping runtime deobfuscation
[15:42:47] [main/INFO] [FML]: Detected deobfuscated environment, loading log configs for colored console logs.
2019-06-19 15:42:48,080 main WARN Disabling terminal, you're running in an unsupported environment.
[15:42:48] [main/INFO] [FML]: Ignoring missing certificate for coremod FMLCorePlugin (net.minecraftforge.fml.relauncher.FMLCorePlugin), we are in deobf and it's a forge core plugin
[15:42:48] [main/INFO] [FML]: Ignoring missing certificate for coremod FMLForgePlugin (net.minecraftforge.classloading.FMLForgePlugin), we are in deobf and it's a forge core plugin
[15:42:48] [main/INFO] [FML]: Searching C:\Users\Declan\Desktop\Modding\TutorialMod\run\.\mods for mods
[15:42:48] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.gradle.tweakers.CoremodTweaker
[15:42:48] [main/INFO] [GradleStart]: Injecting location in coremod net.minecraftforge.fml.relauncher.FMLCorePlugin
[15:42:48] [main/INFO] [GradleStart]: Injecting location in coremod net.minecraftforge.classloading.FMLForgePlugin
[15:42:48] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[15:42:48] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[15:42:48] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.gradle.tweakers.AccessTransformerTweaker
[15:42:48] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[15:42:48] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[15:42:48] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[15:42:49] [main/ERROR] [FML]: FML appears to be missing any signature data. This is not a good thing
[15:42:49] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[15:42:49] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[15:42:50] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.gradle.tweakers.AccessTransformerTweaker
[15:42:50] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.TerminalTweaker
[15:42:50] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.TerminalTweaker
[15:42:50] [main/INFO] [LaunchWrapper]: Launching wrapped minecraft {net.minecraft.client.main.Main}
[15:42:50] [main/INFO] [minecraft/Minecraft]: Setting user: Player65
[15:42:52] [main/INFO] [minecraft/Minecraft]: LWJGL Version: 2.9.4
[15:42:53] [main/INFO] [FML]: -- System Details --
Details:
	Minecraft Version: 1.12.2
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_152, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 885544560 bytes (844 MB) / 1037959168 bytes (989 MB) up to 1037959168 bytes (989 MB)
	JVM Flags: 3 total; -Xincgc -Xmx1024M -Xms1024M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	FML: 
	Loaded coremods (and transformers): 
	GL info: ' Vendor: 'NVIDIA Corporation' Version: '4.6.0 NVIDIA 425.31' Renderer: 'GeForce GTX 1050 Ti/PCIe/SSE2'
[15:42:53] [main/INFO] [FML]: MinecraftForge v14.23.5.2768 Initialized
[15:42:53] [main/INFO] [FML]: Starts to replace vanilla recipe ingredients with ore ingredients.
[15:42:53] [main/INFO] [FML]: Replaced 1036 ore ingredients
[15:42:54] [main/INFO] [FML]: Searching C:\Users\Declan\Desktop\Modding\TutorialMod\run\.\mods for mods
[15:42:54] [main/INFO] [FML]: Forge Mod Loader has identified 5 mods to load
[15:42:54] [main/INFO] [FML]: Attempting connection with missing mods [minecraft, mcp, FML, forge, tm] at CLIENT
[15:42:54] [main/INFO] [FML]: Attempting connection with missing mods [minecraft, mcp, FML, forge, tm] at SERVER
[15:42:55] [main/ERROR] [FML]: An error occurred trying to load a proxy into proxy.java.lang.ClassNotFoundException: com.DarkMagic017.tutorialmod.client.ClientProxy
[15:42:55] [main/INFO] [STDOUT]: [net.minecraft.init.Bootstrap:printToSYSOUT:629]: ---- Minecraft Crash Report ----
// Who set us up the TNT?

Time: 6/19/19 3:42 PM
Description: There was a severe problem during mod loading that has caused the game to fail

net.minecraftforge.fml.common.LoaderException: java.lang.ClassNotFoundException: com.DarkMagic017.tutorialmod.client.ClientProxy
	at net.minecraftforge.fml.common.ProxyInjector.inject(ProxyInjector.java:102)
	at net.minecraftforge.fml.common.FMLModContainer.constructMod(FMLModContainer.java:600)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
	at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150)
	at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
	at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399)
	at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71)
	at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116)
	at com.google.common.eventbus.EventBus.post(EventBus.java:217)
	at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:218)
	at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:196)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
	at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150)
	at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
	at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399)
	at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71)
	at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116)
	at com.google.common.eventbus.EventBus.post(EventBus.java:217)
	at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:135)
	at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:593)
	at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:232)
	at net.minecraft.client.Minecraft.init(Minecraft.java:513)
	at net.minecraft.client.Minecraft.run(Minecraft.java:421)
	at net.minecraft.client.main.Main.main(Main.java:118)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97)
	at GradleStart.main(GradleStart.java:25)
Caused by: java.lang.ClassNotFoundException: com.DarkMagic017.tutorialmod.client.ClientProxy
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at net.minecraftforge.fml.common.ModClassLoader.loadClass(ModClassLoader.java:75)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Unknown Source)
	at net.minecraftforge.fml.common.ProxyInjector.inject(ProxyInjector.java:85)
	... 43 more
Caused by: java.lang.NullPointerException
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
	... 49 more


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
	Minecraft Version: 1.12.2
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_152, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 830669792 bytes (792 MB) / 1037959168 bytes (989 MB) up to 1037959168 bytes (989 MB)
	JVM Flags: 3 total; -Xincgc -Xmx1024M -Xms1024M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	FML: MCP 9.42 Powered by Forge 14.23.5.2768 5 mods loaded, 5 mods active
	States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

	| State | ID        | Version      | Source                           | Signature |
	|:----- |:--------- |:------------ |:-------------------------------- |:--------- |
	| UC    | minecraft | 1.12.2       | minecraft.jar                    | None      |
	| UC    | mcp       | 9.42         | minecraft.jar                    | None      |
	| UC    | FML       | 8.0.99.99    | forgeSrc-1.12.2-14.23.5.2768.jar | None      |
	| UC    | forge     | 14.23.5.2768 | forgeSrc-1.12.2-14.23.5.2768.jar | None      |
	| UE    | tm        | 1.0          | bin                              | None      |

	Loaded coremods (and transformers): 
	GL info: ' Vendor: 'NVIDIA Corporation' Version: '4.6.0 NVIDIA 425.31' Renderer: 'GeForce GTX 1050 Ti/PCIe/SSE2'
[15:42:55] [main/INFO] [STDOUT]: [net.minecraft.init.Bootstrap:printToSYSOUT:629]: #@!@# Game crashed! Crash report saved to: #@!@# C:\Users\Declan\Desktop\Modding\TutorialMod\run\.\crash-reports\crash-2019-06-19_15.42.55-client.txt
Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release

 

[DaemonUmbra]

Shining example of why these tutorials are so bad.

Do you know why this happened?

[DarkMagic017]

Wow that was quick, um I assume it was because of the proxy stuff?

[DaemonUmbra]

Yes... do you know what each of the values should be and why?

[DarkMagic017]

Nope, the tutorial doesn't explain. Kinda sucks

Edited June 19, 2019 by DarkMagic017

[DaemonUmbra]

This is why these tutorials are so bad, they just say "Do what I do" without telling you why, then they have you use extra things that do nothing to help you and often create issues further down the line.

 

Cadiboo is making a text-based tutorial that in my opinion is a ton much better than most YouTube tutorials and I've only just skimmed it.

[DarkMagic017]

1 minute ago, DaemonUmbra said:

This is why these tutorials are so bad, they just say "Do what I do" without telling you why, then they have you use extra things that do nothing to help you and often create issues further down the line.

 

Cadiboo is making a text-based tutorial that in my opinion is a ton much better than most YouTube tutorials and I've only just skimmed it.

Thanks! But how do I fix my problem?

[DaemonUmbra]

I suggest you start over completely, but if you insist on continuing with what you have you can follow the link I gave you.

[DarkMagic017]

Ok, Thank you for your help.

[Draco18s]

Just so we're clear:

2 hours ago, DarkMagic017 said:

Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release

This is not your error. Its just the last thing the JVM vomits up when shutting down. It will always do this. It will do this even when quitting the game normally when there are no problems. Trying to "solve" this error is pointless. Its not even an error. It says so. It's a warning.

 

This is:

2 hours ago, DarkMagic017 said:

net.minecraftforge.fml.common.LoaderException: java.lang.ClassNotFoundException: com.DarkMagic017.tutorialmod.client.ClientProxy

 

As such, making your thread title a thing that isn't your problem helps no one.

Edited June 19, 2019 by Draco18s