java: Update the comment for testTimeout

This is something that should have been in https://v.io/c/23090.

Change-Id: Ieb65cda7213a253a427f11fdecd1f218c1d17c7b
diff --git a/lib/src/test/java/io/v/v23/VFuturesTest.java b/lib/src/test/java/io/v/v23/VFuturesTest.java
index d245c77..bf91dfe 100644
--- a/lib/src/test/java/io/v/v23/VFuturesTest.java
+++ b/lib/src/test/java/io/v/v23/VFuturesTest.java
@@ -52,8 +52,8 @@
     }
 
     /**
-     * When the context times out while a Vanadium server is handling the request, we expect a
-     * {@link TimeoutException}.
+     * When the context times out while a Vanadium server is handling the request, we expect either
+     * a {@link TimeoutException} or a {@link CanceledException}.
      */
     @Test
     public void testTimeout() throws Exception {