[GitHub] [ignite-3] denis-chudov commented on a change in pull request #709: Ignite 16433

[GitBox <gi...@apache.org>]

denis-chudov commented on a change in pull request #709:
URL: https://github.com/apache/ignite-3/pull/709#discussion_r823492625



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File path: modules/core/src/main/java/org/apache/ignite/internal/causality/VersionedValue.java
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@@ -228,19 +276,21 @@ public void fail(long causalityToken, Throwable throwable) {
     public T update(long causalityToken, Function<T, T> complete, Function<Throwable, T> fail) {
         long  actualToken0 = actualToken;
 
-        assert actualToken0 + 1 == causalityToken : IgniteStringFormatter.format("Token must be greater than actual by exactly 1 "
-                + "[token={}, actual={}]", causalityToken, actualToken0);
+        assert actualToken0 == NOT_INITIALIZED || actualToken0 + 1 == causalityToken : IgniteStringFormatter.format(
+                "Token must be greater than actual by exactly 1 [token={}, actual={}]", causalityToken, actualToken0);
 
         Entry<Long, CompletableFuture<T>> histEntry = history.floorEntry(actualToken0);
 
-        CompletableFuture<T> previousFuture = histEntry.getValue();
+        CompletableFuture<T> previousFuture = histEntry == null ? CompletableFuture.completedFuture(getDefault()) : histEntry.getValue();

Review comment:
       seems that we need `previousFuture` inly when `hasUpdatedValue == false`




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