[MC-160102] IllegalArgumentException when being attacked by a weak iron golem

The bug

If an iron golem has high weakness level and if it hits you the game crashes.

To reproduce

Spawn an iron golem
Give it weakness or strength effect lvl 2 or above
Hit it
Wait until it hits you

Or spawn an iron golem using command:

/summon iron_golem ~ ~ ~ {Attributes:[{Name:generic.AttackDamage,Base:0.0}]}

and hit it

Crash report

19w35a: crash-2019-08-30_16.15.51-server.txt

Description: Ticking entity

java.lang.IllegalArgumentException: bound must be positive
	at java.base/java.util.Random.nextInt(Random.java:388)
	at asj.C(SourceFile:154)
	at aon.a(SourceFile:139)
	at aon.e(SourceFile:131)
	at apt.e(SourceFile:55)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
	at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)
	at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
	at aof.a(SourceFile:80)
	at ajy.dh(SourceFile:623)
	at ajx.k(SourceFile:2275)
	at ajy.k(SourceFile:487)
	at asj.k(SourceFile:103)
	at ajx.h(SourceFile:2120)
	at ajy.h(SourceFile:294)
	at wj.a(SourceFile:596)
	at biv.a(SourceFile:656)
	at wj.a(SourceFile:399)
	at net.minecraft.server.MinecraftServer.b(SourceFile:836)
	at net.minecraft.server.MinecraftServer.a(SourceFile:775)
	at ebv.a(SourceFile:128)
	at net.minecraft.server.MinecraftServer.run(SourceFile:643)
	at java.base/java.lang.Thread.run(Thread.java:835)