Simplifying ContextManagers and avoid new Lists when creating or reac…

…tivating snapshots. This should be a significant performance improvement. Signed-off-by: Sjoerd Talsma <[email protected]>
talsma-ict · Nov 8, 2024 · d91f37b · d91f37b
1 parent 46680b7
commit d91f37b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/context-propagation-core/src/main/java/nl/talsmasoftware/context/core/ContextManagers.java b/context-propagation-core/src/main/java/nl/talsmasoftware/context/core/ContextManagers.java
@@ -62,7 +62,7 @@ private ContextManagers() {
     @SuppressWarnings("rawtypes")
     public static nl.talsmasoftware.context.api.ContextSnapshot createContextSnapshot() {
         final long start = System.nanoTime();
-        final List<ContextManager> managers = ServiceCache.cached(ContextManager.class);
+        final List<ContextManager> managers = ServiceCache.cached(ContextManager.class); // Cached list is immutable
         final Object[] values = new Object[managers.size()];
 
         for (ListIterator<ContextManager> it = managers.listIterator(); it.hasNext(); ) {