[1.10.2] TestDummy crashes when damaged by Reliquary's Holy Hand Grenade

[dualmoon]

Relevant crashlog is here for versions and whatnot, (I know this isn't too useful for tracing the actual problem): https://paste.ee/p/s6GwH

I have, amongst other mods, MmmMmmMmmMmm loaded alongside Reliquary: http://minecraft.curseforge.com/projects/reliquary-v1-3

When testing the DPS of various items I found that the Holy Hand Grenade item will crash the server when thrown at the Dummy. I assume this is due to the way damage is calculated vs. the way the Holy Hand Grenade is some sort of explosion damage.

I did find the following:

-- Head --
Thread: Client thread
Stacktrace:
    at boni.dummy.EntityDummy.func_70097_a(EntityDummy.java:155)
    at xreliquary.entities.ConcussiveExplosion.func_77278_a(ConcussiveExplosion.java:117)
    at xreliquary.entities.ConcussiveExplosion.customConcussiveExplosion(ConcussiveExplosion.java:156)
    at xreliquary.entities.EntityHolyHandGrenade.func_70184_a(EntityHolyHandGrenade.java:65)
    at net.minecraft.entity.projectile.EntityThrowable.func_70071_h_(EntityThrowable.java:250)
    at xreliquary.entities.EntityHolyHandGrenade.func_70071_h_(EntityHolyHandGrenade.java:47)
    at net.minecraft.world.World.func_72866_a(World.java:1962)
    at net.minecraft.world.World.func_72870_g(World.java:1932)

-- Entity being ticked --
Details:
    Entity Type: xreliquary.entityHGrenade (xreliquary.entities.EntityHolyHandGrenade)
    Entity ID: 74622
    Entity Name: entity.xreliquary.entityHGrenade.name
    Entity's Exact location: -1196.43, 4.19, -916.47
    Entity's Block location: World: (-1197,4,-917), Chunk: (at 3,0,11 in -75,-58; contains blocks -1200,0,-928 to -1185,255,-913), Region: (-3,-2; contains chunks -96,-64 to -65,-33, blocks -1536,0,-1024 to -1025,255,-513)
    Entity's Momentum: -0.71, -0.39, -0.17
    Entity's Passengers: []
    Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
    at net.minecraft.world.World.func_72939_s(World.java:1748)