Before the 1.8.9 update we simply created new ItemStacks by:

 

new ItemStack(world.getBlock(x,y,z)

 

now when I try

 

new ItemStack(world.getBlockState(x,y,z).getBlock()

 

the ItemStacks do not contain the necessary metadata (all slabs are always stone slabs etc)

 

and

 

 

ItemStack stack = new ItemStack(metadata.getBlock(), 1);
            stack.setItemDamage(block.getMetaFromState(metadata));

 

leads to crashes for BlockDoor and probably other blocks as well.

 

and If I don't have the worldBlock? If I only have the IBlockState?

Thank you.

 

What is "MovingObjectPosition" for. What do I enter in this field?

I was able to use the "getItem(block)  method inside the block class, the same method Block#getPickBlock uses.

But when I tested my mod in smp it crashed since the getItem method is Clientside only.

So how may I get the item correctly on the server (getPickBlock also will need that getItem method) ?

 

Items.getItemFromBlock(block)

This also guarantees plantpots and doors?

So there is no way to get the item on the server since getPickBlock, like I said earlier, calls a client only method.

When I connect drops with silk touch it should work?

Which method does it use (serverside)

That's onBlockHarvested, I believe. Which is called from onBlockRemoved (by player).