cowwoc opened a new pull request, #391:
URL: https://github.com/apache/maven-build-cache-extension/pull/391
Fixes #375
## Problem
Maven 4 auto-injects `--module-version ${project.version}` to `compilerArgs`
during cache storage but not during validation, causing parameter mismatches
and forcing rebuilds on every invocation for modules with `module-info.java`.
## Solution
Add `ignorePattern` attribute to `TrackedProperty` that filters array
elements using regex before comparison.
## Changes
1. **MDO Model** (`build-cache-config.mdo`): Add `ignorePattern` field to
`TrackedProperty`
2. **Reconciliation Logic** (`BuildCacheMojosExecutionStrategy.java`):
- `filterAndStringifyArray()` - filters runtime array values before
stringification
- `filterArrayString()` - filters cached string representations
- Apply filtering to both current and expected values before comparison
## Configuration Example
```xml
<reconcile propertyName="compilerArgs" ignorePattern="--module-version"/>
```
## Testing
Tested with multi-module JPMS project using Maven 4.0.0-rc-4:
- ✅ No parameter mismatches with `--module-version` present
- ✅ Cache correctly reused across builds
- ✅ Legitimate `compilerArgs` changes still invalidate cache
## Related Issues
- #375 - Maven 4 --module-version causes cache mismatches
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