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MultiMC version: 0.6.12-develop-2166 Launched instance in online mode Authentication server is online authserver.mojang.com resolves to: [13.35.195.68] session.minecraft.net resolves to: [34.192.50.106, 52.44.210.220, 3.234.0.54] textures.minecraft.net resolves to: [13.35.242.128, 13.35.242.12, 13.35.242.83, 13.35.242.16] api.mojang.com resolves to: [13.35.247.180] Minecraft folder is: D:/multi/MultiMC/instances/1.8.9/.minecraft Java path is: D:/ADoptr/bin/javaw.exe Checking Java version... Java is version 16.0.1, using 64-bit architecture, from AdoptOpenJDK. Main Class: net.minecraft.launchwrapper.Launch Native path: D:/multi/MultiMC/instances/1.8.9/natives Libraries: D:/multi/MultiMC/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar D:/multi/MultiMC/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar D:/multi/MultiMC/libraries/org/lwjgl/lwjgl/lwjgl/2.9.4-nightly-20150209/lwjgl-2.9.4-nightly-20150209.jar D:/multi/MultiMC/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.4-nightly-20150209/lwjgl_util-2.9.4-nightly-20150209.jar D:/multi/MultiMC/libraries/com/mojang/netty/1.6/netty-1.6.jar D:/multi/MultiMC/libraries/oshi-project/oshi-core/1.1/oshi-core-1.1.jar D:/multi/MultiMC/libraries/net/java/dev/jna/jna/3.4.0/jna-3.4.0.jar D:/multi/MultiMC/libraries/net/java/dev/jna/platform/3.4.0/platform-3.4.0.jar D:/multi/MultiMC/libraries/com/ibm/icu/icu4j-core-mojang/51.2/icu4j-core-mojang-51.2.jar D:/multi/MultiMC/libraries/net/sf/jopt-simple/jopt-simple/4.6/jopt-simple-4.6.jar D:/multi/MultiMC/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar D:/multi/MultiMC/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar D:/multi/MultiMC/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar D:/multi/MultiMC/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar D:/multi/MultiMC/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar D:/multi/MultiMC/libraries/io/netty/netty-all/4.0.23.Final/netty-all-4.0.23.Final.jar D:/multi/MultiMC/libraries/com/google/guava/guava/17.0/guava-17.0.jar D:/multi/MultiMC/libraries/org/apache/commons/commons-lang3/3.3.2/commons-lang3-3.3.2.jar D:/multi/MultiMC/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar D:/multi/MultiMC/libraries/commons-codec/commons-codec/1.9/commons-codec-1.9.jar D:/multi/MultiMC/libraries/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar D:/multi/MultiMC/libraries/com/mojang/authlib/1.5.21/authlib-1.5.21.jar D:/multi/MultiMC/libraries/com/mojang/realms/1.7.59/realms-1.7.59.jar D:/multi/MultiMC/libraries/org/apache/commons/commons-compress/1.8.1/commons-compress-1.8.1.jar D:/multi/MultiMC/libraries/org/apache/httpcomponents/httpclient/4.3.3/httpclient-4.3.3.jar D:/multi/MultiMC/libraries/commons-logging/commons-logging/1.1.3/commons-logging-1.1.3.jar D:/multi/MultiMC/libraries/org/apache/httpcomponents/httpcore/4.3.2/httpcore-4.3.2.jar D:/multi/MultiMC/libraries/org/apache/logging/log4j/log4j-api/2.0-beta9/log4j-api-2.0-beta9.jar D:/multi/MultiMC/libraries/org/apache/logging/log4j/log4j-core/2.0-beta9/log4j-core-2.0-beta9.jar D:/multi/MultiMC/libraries/tv/twitch/twitch/6.5/twitch-6.5.jar D:/multi/MultiMC/libraries/net/minecraftforge/forge/1.8.9-11.15.1.2318-1.8.9/forge-1.8.9-11.15.1.2318-1.8.9-universal.jar D:/multi/MultiMC/libraries/net/minecraft/launchwrapper/1.12/launchwrapper-1.12.jar D:/multi/MultiMC/libraries/org/ow2/asm/asm-all/5.0.3/asm-all-5.0.3.jar D:/multi/MultiMC/libraries/jline/jline/2.13/jline-2.13.jar D:/multi/MultiMC/libraries/com/typesafe/akka/akka-actor_2.11/2.3.3/akka-actor_2.11-2.3.3.jar D:/multi/MultiMC/libraries/com/typesafe/config/1.2.1/config-1.2.1.jar D:/multi/MultiMC/libraries/org/scala-lang/scala-actors-migration_2.11/1.1.0/scala-actors-migration_2.11-1.1.0.jar D:/multi/MultiMC/libraries/org/scala-lang/scala-compiler/2.11.1/scala-compiler-2.11.1.jar D:/multi/MultiMC/libraries/org/scala-lang/plugins/scala-continuations-library_2.11/1.0.2/scala-continuations-library_2.11-1.0.2.jar D:/multi/MultiMC/libraries/org/scala-lang/plugins/scala-continuations-plugin_2.11.1/1.0.2/scala-continuations-plugin_2.11.1-1.0.2.jar D:/multi/MultiMC/libraries/org/scala-lang/scala-library/2.11.1/scala-library-2.11.1.jar D:/multi/MultiMC/libraries/org/scala-lang/scala-parser-combinators_2.11/1.0.1/scala-parser-combinators_2.11-1.0.1.jar D:/multi/MultiMC/libraries/org/scala-lang/scala-reflect/2.11.1/scala-reflect-2.11.1.jar D:/multi/MultiMC/libraries/org/scala-lang/scala-swing_2.11/1.0.1/scala-swing_2.11-1.0.1.jar D:/multi/MultiMC/libraries/org/scala-lang/scala-xml_2.11/1.0.2/scala-xml_2.11-1.0.2.jar D:/multi/MultiMC/libraries/lzma/lzma/0.0.1/lzma-0.0.1.jar D:/multi/MultiMC/libraries/java3d/vecmath/1.5.2/vecmath-1.5.2.jar D:/multi/MultiMC/libraries/net/sf/trove4j/trove4j/3.0.3/trove4j-3.0.3.jar D:/multi/MultiMC/libraries/com/mojang/minecraft/1.8.9/minecraft-1.8.9-client.jar Native libraries: D:/multi/MultiMC/libraries/net/java/jinput/jinput-platform/2.0.5/jinput-platform-2.0.5-natives-windows.jar D:/multi/MultiMC/libraries/org/lwjgl/lwjgl/lwjgl-platform/2.9.4-nightly-20150209/lwjgl-platform-2.9.4-nightly-20150209-natives-windows.jar D:/multi/MultiMC/libraries/tv/twitch/twitch-platform/6.5/twitch-platform-6.5-natives-windows-64.jar D:/multi/MultiMC/libraries/tv/twitch/twitch-external-platform/4.5/twitch-external-platform-4.5-natives-windows-64.jar Mods: [✔️] [1.8.9] Powns ToggleSneak - 3.0 [✔️] [1.8.9] Sidebar Mod Revamp [✔️] ctjs-0.18.4-SNAPSHOT-1.8.9 [✔️] NotEnoughUpdates-2.0-PRE28.1 [✔️] OldAnimationsMod-Animations & Cosmetics_2.6.5-mc_Forge1.8.9 (1) [✔️] OpenEye [✔️] OptiFine_1.8.9_HD_U_I7 [✔️] Patcher-1.5.1 (1.8.9) [✔️] ProjectL-0.2 [✔️] replaymod-1.8.9-2.5.2 [✔️] TcpNoDelayMod-2.0 Params: --username --version MultiMC5 --gameDir D:/multi/MultiMC/instances/1.8.9/.minecraft --assetsDir D:/multi/MultiMC/assets --assetIndex 1.8 --uuid --accessToken --userProperties --userType --tweakClass net.minecraftforge.fml.common.launcher.FMLTweaker Window size: 854 x 480 Java Arguments: [-XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump, -Xms512m, -Xmx4000m, -Duser.language=en] Minecraft process ID: 17436 Using onesix launcher. Failed to start Minecraft: java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:567) at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:210) at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:245) at org.multimc.EntryPoint.listen(EntryPoint.java:143) at org.multimc.EntryPoint.main(EntryPoint.java:34) Caused by: java.lang.ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and java.net.URLClassLoader are in module java.base of loader 'bootstrap') at net.minecraft.launchwrapper.Launch.<init>(Launch.java:34) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) ... 8 more Exiting with -1 Process exited with code -1.

So recently i updated my java to java 16 and when i try to load 1.8.9 forge it now crashes for some reason and its really confusing me since i can load 1.8.9 vanilla but not with Forge Can someone please help