The bug
It appears zombies can no longer break wooden doors. This used to work in 17w46a.
They might very rarely start breaking a door but once they would finish the server crashes:
18w02a: [^crash-2018-01-10_20.57.33-server.txt]
java.lang.IllegalArgumentException: Cannot get property bct{name=open, clazz=class java.lang.Boolean, values=[true, false]} as it does not exist in bci{block=minecraft:air, properties=[]}
at bci$a.c(SourceFile:144)
at abv.f(SourceFile:27)
at abt.b(SourceFile:40)
at ace.a(SourceFile:136)
at ace.a(SourceFile:83)
at aaq.cF(SourceFile:643)
at aap.l(SourceFile:1891)
at aaq.l(SourceFile:503)
at aie.l(SourceFile:42)
at ait.l(SourceFile:217)
at aap.G_(SourceFile:1746)
at aaq.G_(SourceFile:283)
at aie.G_(SourceFile:47)
at asf.a(SourceFile:1565)
at ro.a(SourceFile:704)
at asf.h(SourceFile:1541)
at asf.l(SourceFile:1423)
at ro.l(SourceFile:537)
at net.minecraft.server.MinecraftServer.w(SourceFile:681)
at net.minecraft.server.MinecraftServer.v(SourceFile:606)
at cmj.v(SourceFile:152)
at net.minecraft.server.MinecraftServer.run(SourceFile:511)
at java.lang.Thread.run(Thread.java:745)
How to reproduce
Build a small house with for example an oak door
Spawn a villager inside it
Set the difficulty to hard
/difficulty hard
Summon a zombie outside of it
/summon zombie ~ ~ ~ {CanBreakDoors:1b}
Make sure the gamerule
mobGriefing
is set totrue
/gamerule mobGriefing true
Related issues
is duplicated by
Attachments
Comments


is this only for oak doors, or for all wooden doors?
It affects the all wooden doors.
Also affect the husk and zombie pigman.

Les3awe, I don't think zombie pigmen were ever able to break doors? I don't think they are supposed to be?
"CanBreakDoors" tag also works for zombie pigman.

Tested this a few times in 18w02a, and this is still an issue. However, on one occasion one zombie did start breaking a door, but at the moment the door would have broken, the game crashed. I've attached the crash report for reference, in case this helps narrow down the cause of this bug.
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