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[1.13.2] [SOLVED IN 1.14.4] Get a capability with a dead player crashing the game


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Steps:
1- Have a capability.

2 - Get the capability.
Example:

	public static IExample getCapability(Entity entityIn)
	{
		return entityIn.getCapability(CAPABILITY).orElseThrow(NullPointerException::new);
	}

3 - Use an event.

Example:

PlayerTickEvent.

4 - Kill the player. (/ kill)

5 - The game throws NullPointerException.

Edited by Atila1091
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1 hour ago, Atila1091 said:

Steps:

Have you stepped through the code with the debugger?

VANILLA MINECRAFT CLASSES ARE THE BEST RESOURCES WHEN MODDING

I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

Forge and vanilla BlockState generator.

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I already know what causes the problem:
When the player dies the capability is marked invalid and returns: LazyOptional.empty () ;. I am currently using a static internal method: ForgeEventFactory.gatherCapabilities. 

	public static IExample getCapability(Entity entityIn)
	{
		return ForgeEventFactory.gatherCapabilities(Entity.class, entityIn, null).getCapability(CAPABILITY).orElseThrow(NullPointerException::new);
	}

See the CapabilityProvider class to understand the problem.

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44 minutes ago, Atila1091 said:

I already know what causes the problem:
When the player dies the capability is marked invalid and returns: LazyOptional.empty () ;. I am currently using a static internal method: ForgeEventFactory.gatherCapabilities. 


	public static IExample getCapability(Entity entityIn)
	{
		return ForgeEventFactory.gatherCapabilities(Entity.class, entityIn, null).getCapability(CAPABILITY).orElseThrow(NullPointerException::new);
	}

See the CapabilityProvider class to understand the problem.

It was not a good idea to use this internal method. Looks like I'll have to use reflection.

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