java 21 no such method error

I tried to obfuscate the fabric mod and launched it, but there is a no such method error. 

```
Caused by: java.lang.NoSuchMethodError: 'ru.mandarin.utils.render.animation.SpringConfig ru.mandarin.utils.render.animation.SpringConfig.of(float, float)'
	at knot//ru.mandarin.screen.oldmenu.MenuAnimations$PanelAnimator.<clinit>(MenuAnimations.java)
	at knot//ru.mandarin.screen.oldmenu.MenuAnimations.<init>(MenuAnimations.java)
	at knot//ru.mandarin.screen.oldmenu.MenuAnimations$Holder.<clinit>(MenuAnimations.java)
	at knot//ru.mandarin.screen.oldmenu.MenuAnimations.getInstance(MenuAnimations.java)
	at knot//ru.mandarin.screen.oldmenu.PanelComponent.<clinit>(PanelComponent.java)
	at knot//ru.mandarin.screen.oldmenu.MenuManager.<clinit>(MenuManager.java)
	at knot//ru.mandarin.Mandarin.<clinit>(Mandarin.java)
	at java.base/java.lang.Class.forName0(Native Method)
	at java.base/java.lang.Class.forName(Class.java:534)
	at java.base/java.lang.Class.forName(Class.java:513)
	at net.fabricmc.loader.impl.util.DefaultLanguageAdapter.create(DefaultLanguageAdapter.java:50)
	at net.fabricmc.loader.impl.entrypoint.EntrypointStorage$NewEntry.getOrCreate(EntrypointStorage.java:124)
	at net.fabricmc.loader.impl.entrypoint.EntrypointContainerImpl.getEntrypoint(EntrypointContainerImpl.java:53)
	at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:405)
	... 6 more
```

I assume that if you add something to an exception, it doesn't touch what it contains at all, even if the function signature has changed during obfuscation.

<img width="1889" height="765" alt="Image" src="https://github.com/user-attachments/assets/29082399-a456-4be0-8d3b-181515a7de5f" />
on the right is not obfuscated decompiled code, and on the left is obfuscated


config:

```
exempt: [
  "class{^org\\/json\\/.*}",
  "class{^net\\/fabricmc\\/.*}",
  "class{^net\\/minecraft\\/.*}",
  "class{^org\\/spongepowered\\/.*}",
  "class{^space\\/akaruineko\\/cap\\/.*}",
  "class{^ru\\/mandarin\\/event\\/.*}",
  "class{^ru\\/mandarin\\/api\\/mixin\\/.*}",
  "class{^org\\/jetbrains\\/annotations\\/.*}",
  "method{^main}",
  "method{^onInit}",
  "method{^initialize}",
  "method{^onInitializeClient}",
  "method{^onRender}"
]

stringEncryption {
  enabled: true
  type: STANDARD
  exempt: ${exempt}
}

flowCondition {
  enabled: true
  exempt: ${exempt}
}

flowException {
  enabled: false
  strength: AGGRESSIVE
  exempt: ${exempt}
}

flowRange {
  enabled: false
  exempt: ${exempt}
}

flowFactoryMaker {
  enabled: false
  exempt: ${exempt}
}

flowSwitch {
  enabled: true
  exempt: ${exempt}
}

numberEncryption {
  enabled: false
  exempt: ${exempt}
}

exceptionReturn {
  enabled: false
  exempt: ${exempt}
}

classRenamer {
  enabled: false
}

methodRenamer {
  enabled: false
}

fieldRenamer {
  enabled: false
}
```

and logs:


```
  /$$$$$$  /$$       /$$       /$$  /$$$$$$                                           /$$
 /$$__  $$| $$      |__/      | $$ /$$__  $$                                         | $$
| $$  \__/| $$   /$$ /$$  /$$$$$$$| $$  \__//$$   /$$  /$$$$$$$  /$$$$$$$  /$$$$$$  /$$$$$$    /$$$$$$   /$$$$$$
|  $$$$$$ | $$  /$$/| $$ /$$__  $$| $$$$   | $$  | $$ /$$_____/ /$$_____/ |____  $$|_  $$_/   /$$__  $$ /$$__  $$
 \____  $$| $$$$$$/ | $$| $$  | $$| $$_/   | $$  | $$|  $$$$$$ | $$        /$$$$$$$  | $$    | $$  \ $$| $$  \__/
 /$$  \ $$| $$_  $$ | $$| $$  | $$| $$     | $$  | $$ \____  $$| $$       /$$__  $$  | $$ /$$| $$  | $$| $$
|  $$$$$$/| $$ \  $$| $$|  $$$$$$$| $$     |  $$$$$$/ /$$$$$$$/|  $$$$$$$|  $$$$$$$  |  $$$$/|  $$$$$$/| $$
 \______/ |__/  \__/|__/ \_______/|__/      \______/ |_______/  \_______/ \_______/   \___/   \______/ |__/

                               ?????????????????????????????????????????????
                               ?         Processors:   12 cores            ?
                               ?     Current Memory:   531mb               ?
                               ?         Max Memory:   8565mb              ?
                               ?????????????????????????????????????????????

                      Author: Ghast     Version: 2.0.11     Today: 8 ����. 2026?�., 01:32:59

 ?  Executing... [>-------------------------------------] 0/1 [00:00:00] (537 / 8565mb)
?  Imported configuration

 ?  Executing... [>-------------------------------------] 0/13 [00:00:00] (537 / 8565mb)
?  Imported 13 exclusions

 ?  Executing... [>-------------------------------------] 0/238 [00:00:00] (537 / 8565mb)
?  Imported 238 classes from D:\idea\MandarinClient\build\libs\Mandarin-1.0.0.jar

 ?  Executing... [>-------------------------------------] 0/70 [00:00:00] (1082 / 8565mb)
 ?  Executing... [>-------------------------------------] 0/70 [00:00:00] (1082 / 8565mb)
 ?  Executing... [###########>--------------------------] 21/70 [00:00:00] (1082 / 8565mb)
 ?  Executing... [########################>-------------] 46/70 [00:00:00] (1082 / 8565mb)
?  Imported the JVM JDK (> 9) [x70]

 ?  Executing... [#####>--------------------------------] 35/238 [00:00:00] (1082 / 8565mb)
?  Verified classpath for 238 classes

 ?  Executing... [>-------------------------------------] 0/1 [00:00:00] (1082 / 8565mb)
?  Resolved context analysis

 ?  Executing... [>-------------------------------------] 0/208 [00:00:00] (1082 / 8565mb)
?  Cached over 208 classes!

 ?  Executing... [>-------------------------------------] 0/201 [00:00:00] (1082 / 8565mb)
 ?  Executing... [>-------------------------------------] 0/201 [00:00:00] (1082 / 8565mb)
 ?  Executing... [>-------------------------------------] 5/201 [00:00:00] (2286 / 8565mb)
 ?  Executing... [#>------------------------------------] 9/201 [00:00:00] (2286 / 8565mb)
 ?  Executing... [##>-----------------------------------] 14/201 [00:00:00] (2286 / 8565mb)
 ?  Executing... [#####>--------------------------------] 31/201 [00:00:00] (2286 / 8565mb)
 ?  Executing... [#######>------------------------------] 39/201 [00:00:00] (2286 / 8565mb)
 ?  Executing... [############>-------------------------] 68/201 [00:00:00] (2286 / 8565mb)
 ?  Executing... [##################>-------------------] 97/201 [00:00:00] (2286 / 8565mb)
 ?  Executing... [#####################>----------------] 112/201 [00:00:00] (2286 / 8565mb)
 ?  Executing... [#######################>--------------] 125/201 [00:00:01] (2286 / 8565mb)
 ?  Executing... [###########################>----------] 148/201 [00:00:01] (2286 / 8565mb)
 ?  Executing... [##################################>---] 182/201 [00:00:01] (2286 / 8565mb)
?  Established inheritance for 201 nodes

 ?  Executing... [>-------------------------------------] 0/201 [00:00:00] (2286 / 8565mb)
?  Resolved invocation path for 201 nodes

 ?  Executing... [>-------------------------------------] 0/7 [00:00:00] (2286 / 8565mb)
?  Loaded 7 transformers!

?  Hot-loaded 201 classes

????????????????????????????[ Transform ]????????????????????????????

java.lang.reflect.InvocationTargetException
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:118)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)
	at dev.skidfuscator.obfuscator.event.EventBus$EventListener.callUnsafe(EventBus.java:203)
	at dev.skidfuscator.obfuscator.event.EventBus.call(EventBus.java:91)
	at dev.skidfuscator.obfuscator.Skidfuscator.run(Skidfuscator.java:886)
	at dev.skidfuscator.obfuscator.Skidfuscator.init(Skidfuscator.java:1047)
	at dev.skidfuscator.obfuscator.Skidfuscator.run(Skidfuscator.java:309)
	at dev.skidfuscator.obfuscator.command.ObfuscateCommand.call(ObfuscateCommand.java:156)
	at dev.skidfuscator.obfuscator.command.ObfuscateCommand.call(ObfuscateCommand.java:23)
	at picocli.CommandLine.executeUserObject(CommandLine.java:1953)
	at picocli.CommandLine.access$1300(CommandLine.java:145)
	at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2358)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2352)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2314)
	at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2179)
	at picocli.CommandLine$RunLast.execute(CommandLine.java:2316)
	at picocli.CommandLine.execute(CommandLine.java:2078)
	at dev.skidfuscator.obfuscator.SkidfuscatorMain.main(SkidfuscatorMain.java:79)
Caused by: java.lang.IllegalStateException: VM initialization failed
	at dev.xdark.ssvm.VirtualMachine.init(VirtualMachine.java:611)
	at dev.xdark.ssvm.VirtualMachine.tryInitialize(VirtualMachine.java:619)
	at dev.xdark.ssvm.VirtualMachine.bootstrap(VirtualMachine.java:265)
	at dev.skidfuscator.obfuscator.number.pure.VmHashTransformer.init(VmHashTransformer.java:244)
	at dev.skidfuscator.obfuscator.number.pure.VmHashTransformer.<init>(VmHashTransformer.java:47)
	at dev.skidfuscator.obfuscator.transform.impl.pure.PureHashTransformer.handle(PureHashTransformer.java:17)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
Caused by: java.lang.IllegalStateException: VM initialization failed

	... 17 more
Caused by: dev.xdark.ssvm.execution.VMException: java/lang/UnsatisfiedLinkError: java/lang/Class.registerNatives()V
	at dev.xdark.ssvm.operation.DefaultExceptionOperations.throwException(DefaultExceptionOperations.java:62)
	at dev.xdark.ssvm.operation.ExceptionOperations.throwException(ExceptionOperations.java:79)
	at dev.xdark.ssvm.operation.ExceptionOperations.throwException(ExceptionOperations.java:89)
	at dev.xdark.ssvm.operation.VMOperations.throwException(VMOperations.java:42)
	at dev.xdark.ssvm.api.SimpleVMInterface.handleLinkageError0(SimpleVMInterface.java:161)
	at dev.xdark.ssvm.api.SimpleVMInterface.handleLinkageError(SimpleVMInterface.java:146)
	at dev.xdark.ssvm.execution.InterpretedInvoker.intercept(InterpretedInvoker.java:22)
	at dev.xdark.ssvm.execution.SimpleExecutionEngine.execute(SimpleExecutionEngine.java:58)
	at dev.xdark.ssvm.operation.DefaultInvocationOperations.invoke(DefaultInvocationOperations.java:30)
	at dev.xdark.ssvm.operation.VMOperations.invoke(VMOperations.java:46)
	at dev.xdark.ssvm.execution.rewrite.method.AbstractVMCallProcessor.execute(AbstractVMCallProcessor.java:35)
	at dev.xdark.ssvm.execution.rewrite.method.AbstractVMCallProcessor.execute(AbstractVMCallProcessor.java:18)
	at dev.xdark.ssvm.execution.Interpreter.execute(Interpreter.java:57)
	at dev.xdark.ssvm.execution.InterpretedInvoker.intercept(InterpretedInvoker.java:36)
	at dev.xdark.ssvm.execution.SimpleExecutionEngine.execute(SimpleExecutionEngine.java:58)
	at dev.xdark.ssvm.operation.DefaultInvocationOperations.invoke(DefaultInvocationOperations.java:30)
	at dev.xdark.ssvm.operation.DefaultInvocationOperations.invokeVoid(DefaultInvocationOperations.java:36)
	at dev.xdark.ssvm.operation.VMOperations.invokeVoid(VMOperations.java:46)
	at dev.xdark.ssvm.operation.DefaultClassOperations.initialize(DefaultClassOperations.java:226)
	at dev.xdark.ssvm.operation.VMOperations.initialize(VMOperations.java:56)
	at dev.xdark.ssvm.execution.rewrite.method.AbstractVMCallProcessor.execute(AbstractVMCallProcessor.java:28)
	at dev.xdark.ssvm.execution.rewrite.method.AbstractVMCallProcessor.execute(AbstractVMCallProcessor.java:18)
	at dev.xdark.ssvm.execution.Interpreter.execute(Interpreter.java:57)
	at dev.xdark.ssvm.execution.InterpretedInvoker.intercept(InterpretedInvoker.java:36)
	at dev.xdark.ssvm.execution.SimpleExecutionEngine.execute(SimpleExecutionEngine.java:58)
	at dev.xdark.ssvm.operation.DefaultInvocationOperations.invoke(DefaultInvocationOperations.java:30)
	at dev.xdark.ssvm.operation.DefaultInvocationOperations.invokeVoid(DefaultInvocationOperations.java:36)
	at dev.xdark.ssvm.operation.VMOperations.invokeVoid(VMOperations.java:46)
	at dev.xdark.ssvm.operation.DefaultClassOperations.initialize(DefaultClassOperations.java:226)
	at dev.xdark.ssvm.operation.DefaultClassOperations.initialize(DefaultClassOperations.java:219)
	at dev.xdark.ssvm.operation.DefaultClassOperations.initialize(DefaultClassOperations.java:219)
	at dev.xdark.ssvm.operation.DefaultClassOperations.initialize(DefaultClassOperations.java:219)
	at dev.xdark.ssvm.operation.DefaultClassOperations.initialize(DefaultClassOperations.java:219)
	at dev.xdark.ssvm.operation.VMOperations.initialize(VMOperations.java:56)
	at dev.xdark.ssvm.operation.DefaultExceptionOperations.newException(DefaultExceptionOperations.java:68)
	at dev.xdark.ssvm.operation.ExceptionOperations.throwException(ExceptionOperations.java:79)
	at dev.xdark.ssvm.operation.ExceptionOperations.throwException(ExceptionOperations.java:89)
	at dev.xdark.ssvm.operation.VMOperations.throwException(VMOperations.java:42)
	at dev.xdark.ssvm.LinkHelper.checkField(LinkHelper.java:41)
	at dev.xdark.ssvm.LinkResolver.resolveVirtualField(LinkResolver.java:57)
	at dev.xdark.ssvm.operation.DefaultFieldOperations.getFieldOffsetForInstance(DefaultFieldOperations.java:354)
	at dev.xdark.ssvm.operation.DefaultFieldOperations.putInt(DefaultFieldOperations.java:58)
	at dev.xdark.ssvm.operation.DefaultFieldOperations.putInt(DefaultFieldOperations.java:64)
	at dev.xdark.ssvm.operation.VMOperations.putInt(VMOperations.java:44)
	at dev.xdark.ssvm.thread.virtual.VirtualThreadManager.attachCurrentThread(VirtualThreadManager.java:157)
	at dev.xdark.ssvm.VirtualMachine.init(VirtualMachine.java:580)
	... 23 more
Caused by: java/lang/UnsatisfiedLinkError: java/lang/Class.registerNatives()V
	at dev.xdark.ssvm.operation.DefaultExceptionOperations.toJavaException(DefaultExceptionOperations.java:88)
	at dev.xdark.ssvm.operation.VMOperations.toJavaException(VMOperations.java:42)
	at dev.xdark.ssvm.execution.VMException.<init>(VMException.java:19)
	... 69 more
 ?  Executing... [>-------------------------------------] 0/201 [00:00:00] (2286 / 8565mb)
Caused by: dev.xdark.ssvm.execution.VMException: java/lang/UnsatisfiedLinkError: java/lang/Class.registerNatives()V

Caused by: java/lang/UnsatisfiedLinkError: java/lang/Class.registerNatives()V

 ?  Executing... [################>---------------------] 85/201 [00:00:00] (2286 / 8565mb)
?  ?  Running phase [Init] on 201 classes                           ?

 ?  Executing... [>-------------------------------------] 0/1595 [00:00:00] (2286 / 8565mb)
 ?  Executing... [#########>----------------------------] 378/1595 [00:00:00] (2013 / 8565mb)
 ?  Executing... [###############################>------] 1325/1595 [00:00:00] (2013 / 8565mb)
?  ?  Running phase [Init] on 1595 method groups                    ?

 ?  Executing... [>-------------------------------------] 0/1976 [00:00:00] (2013 / 8565mb)
?  ?  Running phase [Init] on 1976 methods                          ?

?  Found 0 issues |  Modified 0                                     ?
?????????????????????????????????????????????????????????????????????

 ?  Executing... [######>-------------------------------] 35/201 [00:00:00] (2013 / 8565mb)
?  ?  Running phase [Pre-Transform] on 201 classes                  ?

 ?  Executing... [>-------------------------------------] 1/1595 [00:00:00] (2013 / 8565mb)
?  ?  Running phase [Pre-Transform] on 1595 method groups           ?

 ?  Executing... [>-------------------------------------] 2/1976 [00:00:00] (2013 / 8565mb)
?  ?  Running phase [Pre-Transform] on 1976 methods                 ?

?  Found 0 issues |  Modified 0                                     ?
?????????????????????????????????????????????????????????????????????

 ?  Executing... [########>-----------------------------] 47/201 [00:00:00] (2013 / 8565mb)
?  ?  Running phase [Transform] on 201 classes                      ?

 ?  Executing... [>-------------------------------------] 1/1595 [00:00:00] (2013 / 8565mb)
?  ?  Running phase [Transform] on 1595 method groups               ?

 ?  Executing... [>-------------------------------------] 0/1976 [00:00:00] (2013 / 8565mb)
 ?  Executing... [######>-------------------------------] 318/1976 [00:00:00] (2013 / 8565mb)
 ?  Executing... [##############>-----------------------] 772/1976 [00:00:00] (2013 / 8565mb)
 ?  Executing... [#######################>--------------] 1247/1976 [00:00:00] (2013 / 8565mb)
 ?  Executing... [################################>-----] 1666/1976 [00:00:00] (2013 / 8565mb)
?  ?  Running phase [Transform] on 1976 methods                     ?

?  Found 0 issues |  Modified 0                                     ?
?????????????????????????????????????????????????????????????????????

 ?  Executing... [#######>------------------------------] 43/201 [00:00:00] (2013 / 8565mb)
?  ?  Running phase [Post-Transform] on 201 classes                 ?

 ?  Executing... [>-------------------------------------] 1/1595 [00:00:00] (2013 / 8565mb)
?  ?  Running phase [Post-Transform] on 1595 method groups          ?

 ?  Executing... [>-------------------------------------] 0/1976 [00:00:00] (2013 / 8565mb)
 ?  Executing... [####>---------------------------------] 213/1976 [00:00:00] (2013 / 8565mb)
 ?  Executing... [##########>---------------------------] 558/1976 [00:00:00] (2013 / 8565mb)
 ?  Executing... [#######################>--------------] 1210/1976 [00:00:00] (2013 / 8565mb)
 ?  Executing... [###############################>------] 1655/1976 [00:00:00] (2013 / 8565mb)
?  ?  Running phase [Post-Transform] on 1976 methods                ?

?  Found 0 issues |  Modified 0                                     ?
?????????????????????????????????????????????????????????????????????

 ?  Executing... [>-------------------------------------] 0/201 [00:00:00] (2013 / 8565mb)
?  ?  Running phase [Finalize] on 201 classes                       ?

 ?  Executing... [>-------------------------------------] 1/1756 [00:00:00] (2013 / 8565mb)
?  ?  Running phase [Finalize] on 1756 method groups                ?

 ?  Executing... [>-------------------------------------] 1/2137 [00:00:00] (2013 / 8565mb)
?  ?  Running phase [Finalize] on 2137 methods                      ?

?  Found 0 issues |  Modified 0                                     ?

?????????????????????????????????????????????????????????????????????

?????????????????????????????[ Results ]?????????????????????????????
?  Executed String Encryption [Success: 1725 Skipped: 195 Failed: 0]?
?  Executed Interprocedural Harden [Success: 0 Skipped: 22 Failed: 0]?
?  Executed Interprocedural [Success: 0 Skipped: 0 Failed: 0]       ?
?  Executed Flow Switch [Success: 1725 Skipped: 195 Failed: 0]      ?
?  Executed Flow Condition [Success: 1725 Skipped: 195 Failed: 0]   ?
?  Executed Pure Encryption [Success: 0 Skipped: 0 Failed: 0]       ?
?  Executed Ahegao [Success: 179 Skipped: 22 Failed: 0]             ?
?????????????????????????????????????????????????????????????????????


 ?  Executing... [>-------------------------------------] 0/3463 [00:00:00] (2013 / 8565mb)
 ?  Executing... [########>-----------------------------] 800/3463 [00:00:00] (2013 / 8565mb)
 ?  Executing... [##################>-------------------] 1685/3463 [00:00:00] (2013 / 8565mb)
 ?  Executing... [##############################>-------] 2824/3463 [00:00:00] (2013 / 8565mb)
?  Dumped 3463 classes

 ?  Executing... [>-------------------------------------] 0/326 [00:00:00] (2013 / 8565mb)
 ?  Executing... [##>-----------------------------------] 23/326 [00:00:00] (2013 / 8565mb)
 ?  Executing... [######>-------------------------------] 55/326 [00:00:00] (2013 / 8565mb)
 ?  Executing... [##########>---------------------------] 94/326 [00:00:00] (2013 / 8565mb)
 ?  Executing... [##############>-----------------------] 127/326 [00:00:00] (2013 / 8565mb)
 ?  Executing... [#####################>----------------] 183/326 [00:00:00] (2013 / 8565mb)
 ?  Executing... [#########################>------------] 220/326 [00:00:00] (2013 / 8565mb)
 ?  Executing... [############################>---------] 247/326 [00:00:00] (2013 / 8565mb)
 ?  Executing... [#############################>--------] 249/326 [00:00:00] (2013 / 8565mb)
 ?  Executing... [#############################>--------] 249/326 [00:00:00] (2013 / 8565mb)
 ?  Executing... [################################>-----] 277/326 [00:00:01] (2013 / 8565mb)
 ?  Executing... [################################>-----] 277/326 [00:00:01] (2013 / 8565mb)
 ?  Executing... [####################################>-] 309/326 [00:00:01] (2013 / 8565mb)
?  Outputting 239 classes to D:\idea\MandarinClient\build\libs\Mandarin-final-obf.jar

```

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java 21 no such method error #86

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java 21 no such method error #86

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