GeezerVison is showing github.com — Allow empty unions to be completed by extensions by andimarek · Pull Request #4388 · graphql-java/graphql-java
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andimarek
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May 19, 2026
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edited
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Summary
- Allow SDL union definitions with no base members when union extensions provide members
- Keep truly empty unions invalid, including directive-only extensions
- Validate union extension members against the previous effective union so duplicates across the base definition or earlier extensions are rejected
- Add regression coverage for Empty union base definitions rejected before extensions are merged (spec violation) #4200 and additional draft-spec union extension cases
Fixes #4200
Testing
- ./gradlew test --tests graphql.schema.idl.SchemaGeneratorTest --tests graphql.schema.idl.SchemaTypeCheckerTest
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Test Report
Test Results
| Java Version |
Total |
Passed |
Failed |
Errors |
Skipped |
| Java 11 |
5831 (+5 🟢) |
5775 (+5 🟢) |
0 (±0) |
0 (±0) |
56 (±0) |
| Java 17 |
5831 (+5 🟢) |
5774 (+5 🟢) |
0 (±0) |
0 (±0) |
57 (±0) |
| Java 21 |
5831 (+5 🟢) |
5774 (+5 🟢) |
0 (±0) |
0 (±0) |
57 (±0) |
| Java 25 |
5831 (+5 🟢) |
5774 (+5 🟢) |
0 (±0) |
0 (±0) |
57 (±0) |
| jcstress |
32 (±0) |
32 (±0) |
0 (±0) |
0 (±0) |
0 (±0) |
| Total |
23356 (+20 🟢) |
23129 (+20 🟢) |
0 (±0) |
0 (±0) |
227 (±0) |
Code Coverage (Java 25)
| Metric |
Covered |
Missed |
Coverage |
vs Master |
| Lines |
29580 |
3131 |
90.4% |
±0.0% |
| Branches |
8679 |
1533 |
85.0% |
±0.0% |
| Methods |
7905 |
1210 |
86.7% |
±0.0% |
Changed Class Coverage (2 classes)
| Class |
Line |
Branch |
Method |
| g.s.i.SchemaTypeExtensionsChecker |
+0.5% 🟢 |
±0.0% |
+1.9% 🟢 |
| g.s.i.UnionTypesChecker |
±0.0% |
+7.1% 🟢 |
±0.0% |
Full HTML report: build artifact jacoco-html-report
Updated: 2026-05-20 00:51:11 UTC
|
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