tandraschko commented on code in PR #1022:
URL: https://github.com/apache/myfaces/pull/1022#discussion_r3447259382
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impl/src/main/java/org/apache/myfaces/application/ApplicationImplEventManager.java:
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@@ -122,11 +122,11 @@ public void subscribeToEvent(Class<? extends SystemEvent>
systemEventClass, Clas
Assert.notNull(systemEventClass, "systemEventClass");
Assert.notNull(listener, "listener");
- List<EventInfo> eventInfos = globalListeners.get(systemEventClass);
+ // MYFACES-4757 use computeIfAbsent to prevent multiple threads from
creating different lists
+ List eventInfos = globalListeners.get(systemEventClass);
Review Comment:
please readd generics
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