Dropping a GlobalRef in a detached thread

### Describe the bug

When running benchmarks with reduced off-heap memory allocated, I see these warnings. I am not sure if this is something we can fix, or is just the result of a drop happening after a panic, but I'd like to understand what is going on.

```
comet-benchmark-derived-from-tpch-08872799821543de-exec-6 spark-kubernetes-executor 25/09/25 18:45:19 WARN /root/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/jni-0.21.1/src/wrapper/objects/global_ref.rs: Dropping a GlobalRef in a detached thread. Fix your code if this message appears frequently (see the GlobalRef docs).
```

### Steps to reproduce

_No response_

### Expected behavior

_No response_

### Additional context

_No response_