zhuzhurk commented on code in PR #20003:
URL: https://github.com/apache/flink/pull/20003#discussion_r907262950
##########
flink-core/src/main/java/org/apache/flink/util/FlinkUserCodeClassLoaders.java:
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@@ -131,8 +130,8 @@ public static class ParentFirstClassLoader extends
FlinkUserCodeClassLoader {
* delegate is nulled and can be garbage collected. Additional class
resolution will be resolved
* solely through the bootstrap classloader and most likely result in
ClassNotFound exceptions.
*/
- @Internal
- public static class SafetyNetWrapperClassLoader extends URLClassLoader
implements Closeable {
+ private static class SafetyNetWrapperClassLoader extends
MutableURLClassLoader
Review Comment:
No need to `implements Closeable` because `URLClassLoader` already
`implements Closeable`.
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