[MC-248842] Old caves, ravines, noodle caves, and underground structures don't generate properly above layer 0

I wonder If Java Edition has the same issue as Bedrock edition (https://bugs.mojang.com/browse/MCPE-121708, in which they appear inconsistent before caves and cliffs.

(Copied From Gruntastic's report above)

Create a new world with experimental features enabled
Run the following command as you move around the world:
```
/fill ~-1 -63 ~-1 ~1 ~ ~1 air
```

Caves will only generate properly below layer 0 and less commonly above layer 0.
1. The caves will also not generate through any custom blocks
Expected Results:

- The cave carver feature works

Actual Results:

- Caves don't generate

Attachments

Comments 6

anthony cicinelli 2022-02-28T02:00:29Z

Did you test if this was an issue in Java Edition?

William Lapointe 2022-02-28T13:42:11Z

No I didn't. I am just assuming based on the comment of a user named @Brent on MCPE-121708. However I can still see canyons at the surface, sometimes with aquifers in them. I'll compare how it is generated between Java and Bedrock.

bemoty 2022-02-28T14:22:03Z

Please post another comment once you have confirmed that this is also an issue in Java Edition.

William Lapointe 2022-03-03T21:26:23Z

Those are screenshots of caves in a meadow biome. They seem to be all noodle caves instead of old caves. Then compare the last one taken from 1.17.

William Lapointe 2022-03-09T17:56:02Z

jave you reproduced my issue yet?

wobst.michael 2023-02-16T16:11:45Z

Please check if this is an issue in the JAVA version of the game in 1.19.3 or later