Throwing a snowball, egg, ender pearl, splash potion, or lingering potion at an ender crystal will not cause it to explode. In the Java edition, all projectiles will cause an end crystal to explode.
Steps to Reproduce
Place/summon an ender crystal.
Throw a snowball, egg, ender pearl, splash potion, or lingering potion at it.
Notice that the ender crystal does not explode like it should.
Bug confirmed on 1.0 final release
Samsung s7 Edge