what the fuck even is this

gistfile1.txt

[17:55:52] [main/ERROR] [LaunchWrapper]: Unable to launch
java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_131]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_131]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_131]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_131]
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.11.jar:?]
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.11.jar:?]
	at net.minecraftforge.gradle.GradleStartCommon.launch(Unknown Source) [start/:?]
	at GradleStart.main(Unknown Source) [start/:?]
Caused by: java.lang.VerifyError: Expecting a stackmap frame at branch target 72
Exception Details:
  Location:
    net/minecraft/block/BlockSapling.updateTick(Lnet/minecraft/world/World;IIILjava/util/Random;)V @36: if_acmpeq
  Reason:
    Expected stackmap frame at this location.
  Bytecode:
    0x0000000: 2bb4 0031 9a00 642a 2b1c 1d15 0419 05b7
    0x0000010: 0033 2a2b 1c1d 1504 1905 b800 393a 0619
    0x0000020: 06b2 003f a500 2419 06b2 0042 a600 3c2b
    0x0000030: 1c1d 0460 1504 b600 4610 09a1 002d 1905
    0x0000040: 1007 b600 4c9a 0023 2b1c 1d15 04b6 004f
    0x0000050: 3607 2a2b 1c1d 1504 1905 b600 522a 2b1c
    0x0000060: 1d15 0415 07b8 0056 b1                 
  Stackmap Table:
    same_frame_extended(@104)

	at net.minecraft.block.Block.registerBlocks(Block.java:247) ~[Block.class:?]
	at net.minecraft.init.Bootstrap.func_151354_b(Bootstrap.java:457) ~[Bootstrap.class:?]
	at net.minecraft.client.Minecraft.<init>(Minecraft.java:323) ~[Minecraft.class:?]
	at net.minecraft.client.main.Main.main(Main.java:141) ~[Main.class:?]
	... 8 more