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Infer reflection hints for Jackson annotations `builder` attributes 

This notably enables Jackson to reflectively call a user-provided
builder class and invoke its declared methods (setters and build) in
a native app.

Closes gh-32238
This commit is contained in:
Simon Baslé 2024-02-13 15:13:53 +01:00
parent abe381488a
commit 9b93c948a7
2 changed files with 10 additions and 3 deletions
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10
spring-core/src/main/java/org/springframework/aot/hint/BindingReflectionHintsRegistrar.java
View File

@ -200,9 +200,15 @@ public class BindingReflectionHintsRegistrar {
}
private void registerHintsForClassAttributes(ReflectionHints hints, MergedAnnotation<Annotation> annotation) {
annotation.getRoot().asMap().values().forEach(value -> {
annotation.getRoot().asMap().forEach((key,value) -> {
if (value instanceof Class<?> classValue && value != Void.class) {
hints.registerType(classValue, MemberCategory.INVOKE_DECLARED_CONSTRUCTORS);
if (key.equals("builder")) {
hints.registerType(classValue, MemberCategory.INVOKE_DECLARED_CONSTRUCTORS,
MemberCategory.INVOKE_DECLARED_METHODS);
}
else {
hints.registerType(classValue, MemberCategory.INVOKE_DECLARED_CONSTRUCTORS);
}
}
});
}

3
spring-core/src/test/java/org/springframework/aot/hint/BindingReflectionHintsRegistrarTests.java
View File

@ -287,7 +287,8 @@ class BindingReflectionHintsRegistrarTests {
bindingRegistrar.registerReflectionHints(this.hints.reflection(), SampleRecordWithJacksonCustomStrategy.class);
assertThat(RuntimeHintsPredicates.reflection().onType(PropertyNamingStrategies.UpperSnakeCaseStrategy.class).withMemberCategory(MemberCategory.INVOKE_DECLARED_CONSTRUCTORS))
.accepts(this.hints);
assertThat(RuntimeHintsPredicates.reflection().onType(SampleRecordWithJacksonCustomStrategy.Builder.class).withMemberCategory(MemberCategory.INVOKE_DECLARED_CONSTRUCTORS))
assertThat(RuntimeHintsPredicates.reflection().onType(SampleRecordWithJacksonCustomStrategy.Builder.class)
.withMemberCategories(MemberCategory.INVOKE_DECLARED_CONSTRUCTORS, MemberCategory.INVOKE_DECLARED_METHODS))
.accepts(this.hints);
}