sashapolo commented on a change in pull request #174:
URL: https://github.com/apache/ignite-3/pull/174#discussion_r659691498
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File path:
modules/core/src/main/java/org/apache/ignite/internal/util/IgniteUtils.java
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@@ -328,14 +334,7 @@ public static ClassLoader igniteClassLoader() {
if (ldr == null)
ldr = igniteClassLoader;
- ConcurrentMap<String, Class<?>> ldrMap = classCache.get(ldr);
-
- if (ldrMap == null) {
- ConcurrentMap<String, Class<?>> old = classCache.putIfAbsent(ldr,
ldrMap = new ConcurrentHashMap<>());
-
- if (old != null)
- ldrMap = old;
- }
+ ConcurrentMap<String, Class<?>> ldrMap =
classCache.computeIfAbsent(ldr, k -> new ConcurrentHashMap<>());
Review comment:
https://bugs.openjdk.java.net/browse/JDK-8161372 - is this related?
Which article showed you that it might be a bottleneck? Anyway, I will rollback
this change since, strictly speaking, it is not required by this PR
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