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Merge branch '6.2.x'

This commit is contained in:
Juergen Hoeller 2025-02-27 22:54:07 +01:00
parent 7f020118eb 3bb4795d43
commit 03cce13937
2 changed files with 30 additions and 1 deletions
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8
spring-core/src/main/java/org/springframework/core/GenericTypeResolver.java
View File

@ -156,6 +156,9 @@ public final class GenericTypeResolver {
if (genericType instanceof TypeVariable<?> typeVariable) { if (genericType instanceof TypeVariable<?> typeVariable) {
ResolvableType resolvedTypeVariable = resolveVariable( ResolvableType resolvedTypeVariable = resolveVariable(
typeVariable, ResolvableType.forClass(contextClass)); typeVariable, ResolvableType.forClass(contextClass));
if (resolvedTypeVariable == ResolvableType.NONE) {
resolvedTypeVariable = ResolvableType.forVariableBounds(typeVariable);
}
if (resolvedTypeVariable != ResolvableType.NONE) { if (resolvedTypeVariable != ResolvableType.NONE) {
Class<?> resolved = resolvedTypeVariable.resolve(); Class<?> resolved = resolvedTypeVariable.resolve();
if (resolved != null) { if (resolved != null) {
@ -173,6 +176,9 @@ public final class GenericTypeResolver {
Type typeArgument = typeArguments[i]; Type typeArgument = typeArguments[i];
if (typeArgument instanceof TypeVariable<?> typeVariable) { if (typeArgument instanceof TypeVariable<?> typeVariable) {
ResolvableType resolvedTypeArgument = resolveVariable(typeVariable, contextType); ResolvableType resolvedTypeArgument = resolveVariable(typeVariable, contextType);
if (resolvedTypeArgument == ResolvableType.NONE) {
resolvedTypeArgument = ResolvableType.forVariableBounds(typeVariable);
}
if (resolvedTypeArgument != ResolvableType.NONE) { if (resolvedTypeArgument != ResolvableType.NONE) {
generics[i] = resolvedTypeArgument; generics[i] = resolvedTypeArgument;
} }
@ -226,7 +232,7 @@ public final class GenericTypeResolver {
return resolvedType; return resolvedType;
} }
} }
return ResolvableType.forVariableBounds(typeVariable); return ResolvableType.NONE;
} }
/** /**

23
spring-core/src/test/java/org/springframework/core/GenericTypeResolverTests.java
View File

@ -243,6 +243,13 @@ class GenericTypeResolverTests {
assertThat(resolvedType.toString()).isEqualTo("java.util.List<E>"); assertThat(resolvedType.toString()).isEqualTo("java.util.List<E>");
} }
@Test
void resolveTypeFromGenericDefaultMethod() {
Type type = method(InterfaceWithDefaultMethod.class, "get", InheritsDefaultMethod.AbstractType.class).getGenericParameterTypes()[0];
Type resolvedType = resolveType(type, InheritsDefaultMethod.class);
assertThat(resolvedType).isEqualTo(InheritsDefaultMethod.ConcreteType.class);
}
private static Method method(Class<?> target, String methodName, Class<?>... parameterTypes) { private static Method method(Class<?> target, String methodName, Class<?>... parameterTypes) {
Method method = findMethod(target, methodName, parameterTypes); Method method = findMethod(target, methodName, parameterTypes);
assertThat(method).describedAs(target.getName() + "#" + methodName).isNotNull(); assertThat(method).describedAs(target.getName() + "#" + methodName).isNotNull();
@ -454,4 +461,20 @@ class GenericTypeResolverTests {
} }
} }
public interface InterfaceWithDefaultMethod<T extends InheritsDefaultMethod.AbstractType> {
default String get(T input) {
throw new UnsupportedOperationException();
}
interface AbstractType {
}
}
public static class InheritsDefaultMethod implements InterfaceWithDefaultMethod<InheritsDefaultMethod.ConcreteType> {
static class ConcreteType implements AbstractType {
}
}
} }