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daim pushed a commit to branch OAK-11923
in repository https://gitbox.apache.org/repos/asf/jackrabbit-oak.git

commit a2a1cd6e6f6bd9edb1d02c7a70e3026e36d3b393
Author: rishabhdaim <[email protected]>
AuthorDate: Tue Dec 2 21:56:19 2025 +0530

    OAK-11923 : replaced Guava's ForwardingListenableFuture
---
 .../oak/jcr/observation/ExpectationListener.java   | 25 ++++++++--------------
 1 file changed, 9 insertions(+), 16 deletions(-)

diff --git 
a/oak-jcr/src/test/java/org/apache/jackrabbit/oak/jcr/observation/ExpectationListener.java
 
b/oak-jcr/src/test/java/org/apache/jackrabbit/oak/jcr/observation/ExpectationListener.java
index 6303982c4a..f728e1479d 100644
--- 
a/oak-jcr/src/test/java/org/apache/jackrabbit/oak/jcr/observation/ExpectationListener.java
+++ 
b/oak-jcr/src/test/java/org/apache/jackrabbit/oak/jcr/observation/ExpectationListener.java
@@ -18,6 +18,8 @@
  */
 package org.apache.jackrabbit.oak.jcr.observation;
 
+import org.apache.jackrabbit.oak.commons.internal.concurrent.FutureUtils;
+
 import static java.util.Collections.synchronizedList;
 
 import static java.util.Collections.synchronizedSet;
@@ -33,6 +35,7 @@ import java.util.Arrays;
 import java.util.List;
 import java.util.Objects;
 import java.util.Set;
+import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.concurrent.CopyOnWriteArraySet;
 import java.util.concurrent.ExecutionException;
@@ -49,11 +52,6 @@ import javax.jcr.observation.Event;
 import javax.jcr.observation.EventIterator;
 import javax.jcr.observation.EventListener;
 
-import 
org.apache.jackrabbit.guava.common.util.concurrent.ForwardingListenableFuture;
-import org.apache.jackrabbit.guava.common.util.concurrent.Futures;
-import org.apache.jackrabbit.guava.common.util.concurrent.ListenableFuture;
-import org.apache.jackrabbit.guava.common.util.concurrent.SettableFuture;
-
 import static 
org.apache.jackrabbit.oak.jcr.observation.EventFactory.AFTERVALUE;
 import static 
org.apache.jackrabbit.oak.jcr.observation.EventFactory.BEFOREVALUE;
 
@@ -183,7 +181,7 @@ public class ExpectationListener implements EventListener {
             throws ExecutionException, InterruptedException {
         List<Expectation> missing = new ArrayList<>();
         try {
-            Futures.allAsList(expected).get(time, timeUnit);
+            FutureUtils.allAsList(expected).get(time, timeUnit);
         }
         catch (TimeoutException e) {
             for (Expectation exp : expected) {
@@ -230,8 +228,8 @@ public class ExpectationListener implements EventListener {
         }
     }
 
-    public static class Expectation extends ForwardingListenableFuture<Event> {
-        private final SettableFuture<Event> future = SettableFuture.create();
+    public static class Expectation extends CompletableFuture<Event> {
+        private final CompletableFuture<Event> future = new 
CompletableFuture<>();
         private final String name;
 
         private volatile boolean enabled = true;
@@ -245,11 +243,6 @@ public class ExpectationListener implements EventListener {
             this(name, true);
         }
 
-        @Override
-        protected ListenableFuture<Event> delegate() {
-            return future;
-        }
-
         public void enable(boolean enabled) {
             this.enabled = enabled;
         }
@@ -258,8 +251,8 @@ public class ExpectationListener implements EventListener {
             return enabled;
         }
 
-        public void complete(Event event) {
-            future.set(event);
+        public boolean complete(Event event) {
+            return future.complete(event);
         }
 
         public boolean isComplete() {
@@ -267,7 +260,7 @@ public class ExpectationListener implements EventListener {
         }
 
         public void fail(Exception e) {
-            future.setException(e);
+            future.completeExceptionally(e);
         }
 
         public boolean wait(long timeout, TimeUnit unit) {

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