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ResolvableType-based matching consistently respects generic factory method return type (even for pre-initialized raw singleton instance)

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Issue: SPR-17524
This commit is contained in:
Juergen Hoeller
2018-11-25 21:27:19 +01:00
parent c2e545776d
commit ebbe14c363
2 changed files with 179 additions and 6 deletions
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15
spring-beans/src/main/java/org/springframework/beans/factory/support/AbstractBeanFactory.java
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@@ -510,12 +510,21 @@ public abstract class AbstractBeanFactory extends FactoryBeanRegistrySupport imp
// Generics potentially only match on the target class, not on the proxy...
RootBeanDefinition mbd = getMergedLocalBeanDefinition(beanName);
Class<?> targetType = mbd.getTargetType();
if (targetType != null && targetType != ClassUtils.getUserClass(beanInstance) &&
typeToMatch.isAssignableFrom(targetType)) {
if (targetType != null && targetType != ClassUtils.getUserClass(beanInstance)) {
// Check raw class match as well, making sure it's exposed on the proxy.
Class<?> classToMatch = typeToMatch.resolve();
return (classToMatch == null || classToMatch.isInstance(beanInstance));
if (classToMatch != null && !classToMatch.isInstance(beanInstance)) {
return false;
}
if (typeToMatch.isAssignableFrom(targetType)) {
return true;
}
}
ResolvableType resolvableType = mbd.targetType;
if (resolvableType == null) {
resolvableType = mbd.factoryMethodReturnType;
}
return (resolvableType != null && typeToMatch.isAssignableFrom(resolvableType));
}
}
return false;