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Cache hasUnresolvableGenerics result for repeated checks

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Closes gh-30713
This commit is contained in:
Juergen Hoeller
2023-06-21 13:16:04 +02:00
parent 714c3c59eb
commit 93218a06ba
1 changed files with 12 additions and 0 deletions
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spring-core/src/main/java/org/springframework/core/ResolvableType.java
+12
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@@ -133,6 +133,9 @@ public class ResolvableType implements Serializable {
@Nullable
private volatile ResolvableType[] generics;
@Nullable
private volatile Boolean unresolvableGenerics;
/**
* Private constructor used to create a new {@link ResolvableType} for cache key purposes,
@@ -544,6 +547,15 @@ public class ResolvableType implements Serializable {
if (this == NONE) {
return false;
}
Boolean unresolvableGenerics = this.unresolvableGenerics;
if (unresolvableGenerics == null) {
unresolvableGenerics = determineUnresolvableGenerics();
this.unresolvableGenerics = unresolvableGenerics;
}
return unresolvableGenerics;
}
private boolean determineUnresolvableGenerics() {
ResolvableType[] generics = getGenerics();
for (ResolvableType generic : generics) {
if (generic.isUnresolvableTypeVariable() || generic.isWildcardWithoutBounds()) {