Force Mob Spawning Using NMS

I'm trying to make a plugin that uses custom spawning. I decided to completely redo spawning code. It became so complex that I was worried that it would cause a memory leak, and I only checked for a fall damage hazard. (I decided to scrap the code). I want to spawn a mob, but it must ignore hazards like lava, fall damage, cactus, etc... Like normal Minecraft spawning. Is there any way to do this? If I'm not clear, I want this to happen:

Code:

if(spawningconditionsaremet){
    spawnAMobThatIgnoresHazardsUsingNmsSomehow();
}

 

1. Get random location
2. Check to see if it meets your requirements
3. Spawn a mob

 

Is there any other way to do this?

 

@Dsi_Mario What's wrong with doing this?

 

If I wanted to spawn a mob in a 6 block radius of something (excluding y), random would have 9180 blocks to choose from. I would also have less control over when mobs spawn.

 

@Dsi_Mario You still control exactly when they spawn, just not the location... And what's wrong if random has that many options? But how did you get to that number?

 

@Dsi_Mario
Usually you won't get much help with NMS because of how complex it is. I would suggest looking to see how the server itself spawns NPCs.