[GitHub] [flink] AHeise commented on a change in pull request #13031: [FLINK-18773][runtime] Enables parallel user-code and plugin class loader.

[GitBox <gi...@apache.org>]

AHeise commented on a change in pull request #13031:
URL: https://github.com/apache/flink/pull/13031#discussion_r466992670



##########
File path: flink-core/src/main/java/org/apache/flink/util/ChildFirstClassLoader.java
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@@ -73,9 +71,7 @@ public ChildFirstClassLoader(
 				// let URLClassLoader do it, which will eventually call the parent
 				c = super.loadClassWithoutExceptionHandling(name, resolve);
 			}
-		}
-
-		if (resolve) {
+		} else if (resolve) {

Review comment:
       It's a small performance optimization (should probably go in a separate hotfix commit). The typical class loading pattern indeed has this trailing resolution with an if, but in `ChildFirstClassLoader`, the resolution already happens at `super.loadClassWithoutExceptionHandling(name, resolve)`. So it should never be necessary to resolve it additionally.




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