Pankraz76 commented on code in PR #2428:
URL: https://github.com/apache/maven/pull/2428#discussion_r2125897223
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impl/maven-di/src/main/java/org/apache/maven/di/impl/InjectorImpl.java:
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@@ -426,29 +425,14 @@ private void removeFromResolutionStack(Key<?> key) {
}
private static class SingletonScope implements Scope {
- Map<Key<?>, java.util.function.Supplier<?>> cache = new
ConcurrentHashMap<>();
+ final Map<Key<?>, java.util.function.Supplier<?>> cache = new
ConcurrentHashMap<>();
@Nonnull
@SuppressWarnings("unchecked")
@Override
public <T> java.util.function.Supplier<T> scope(
@Nonnull Key<T> key, @Nonnull java.util.function.Supplier<T>
unscoped) {
- return (java.util.function.Supplier<T>)
- cache.computeIfAbsent(key, k -> new
java.util.function.Supplier<T>() {
- volatile T instance;
-
- @Override
- public T get() {
- if (instance == null) {
- synchronized (this) {
- if (instance == null) {
- instance = unscoped.get();
- }
- }
- }
- return instance;
- }
- });
+ return (java.util.function.Supplier<T>) cache.computeIfAbsent(key,
k -> unscoped);
Review Comment:
ide suggestion.
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