Solved Checking whether block is collidable

Hello, can I somehow check whether a certain block may be collided with by an entity?

I want to create my own version of World.rayTraceBlocks() that doesn't end on blocks such as signs.
The closest I can get is Material.isSolid() but still signs and some other materials are solid but aren't collidable.

I want to achieve anything that is quicker than listing every blacklisted material and checking whether current block is any of these.

 

I think it is. Never thought that it would be accessible from Block class instead of Material, given that the latter has isSolid, isOccluding etc, thanks!