lhotari commented on code in PR #25101:
URL: https://github.com/apache/pulsar/pull/25101#discussion_r2638947942


##########
managed-ledger/src/test/java/org/apache/bookkeeper/mledger/impl/ManagedCursorTest.java:
##########
@@ -1260,26 +1263,29 @@ void cursorPersistence() throws Exception {
 
         List<Entry> entries = c1.readEntries(3);
         Position p1 = entries.get(2).getPosition();
+        // Mark delete, create ledger 4 due to cursor ledger state is NoLedger.
         c1.markDelete(p1);
         entries.forEach(Entry::release);
 
         entries = c1.readEntries(4);
         Position p2 = entries.get(2).getPosition();
+        // Mark delete, create ledger 5 due to cursor ledger state is NoLedger.
         c2.markDelete(p2);
         entries.forEach(Entry::release);
 
         // Reopen
-
         @Cleanup("shutdown")
         ManagedLedgerFactory factory2 = new 
ManagedLedgerFactoryImpl(metadataStore, bkc);
-        ledger = factory2.open("my_test_ledger");
+        // Recovery open cursor_persistence_ledger ledger, create ledger 6, 
and move mark delete position to 6:-1.
+        // See PR https://github.com/apache/pulsar/pull/25087.
+        ledger = factory2.open("cursor_persistence_ledger");
         c1 = ledger.openCursor("c1");
         c2 = ledger.openCursor("c2");
 
         assertEquals(c1.getMarkDeletedPosition(), p1);
-        // move mark-delete-position from 3:5 to 6:-1 since all the entries 
have been consumed
         ManagedCursor finalC2 = c2;
-        Awaitility.await().untilAsserted(() -> 
assertNotEquals(finalC2.getMarkDeletedPosition(), p2));
+        Awaitility.await()
+                .untilAsserted(() -> 
assertEquals(finalC2.getMarkDeletedPosition(), new ImmutablePositionImpl(6, 
-1)));

Review Comment:
   `ImmutablePositionImpl` shouldn't be referenced in code directly. For 
creating instances, `PositionFactory.create` is preferred.



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