chaokunyang opened a new pull request, #4000:
URL: https://github.com/apache/fory/pull/4000
## Why?
Compatible-mode deserialization stopped caching exact-local schema `TypeInfo`
objects in 1.7.0. Multiple sibling struct types then displaced the single
depth-local hint and repeatedly recreated compatible serializers, including
resubmitting code generation on every scoped read.
## What does this PR do?
- Publish exact-local schema owners to the existing resolver header-hash
cache.
- Reuse the cached local `TypeInfo` while keeping shared remote metadata
state
and schema-version accounting unchanged.
- Cover alternating exact-local schemas and the local-over-remote-hint rule.
## Benchmark
Issue reproduction with eight distinct registered field types, 2-second
warmup,
and 3-second measurement on JDK 26 / Apple M4 Pro:
| Compilation | Before | After |
| --- | ---: | ---: |
| Synchronous | 23,492 ops/s | 3,690,749 ops/s |
| Asynchronous | 10,932 ops/s | 3,711,896 ops/s |
The fixed async run produced no compiler task queue flood or rejected-task
warnings.
## Testing
- `ENABLE_FORY_DEBUG_OUTPUT=1 mvn -pl fory-core -Dtest=TypeDefHeaderHashTest
test`
- `mvn -pl fory-core test`
- `mvn -pl fory-core spotless:check`
- `prettier --check AGENTS.md`
Closes #3999
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