casuallc commented on a change in pull request #11813:
URL: https://github.com/apache/pulsar/pull/11813#discussion_r700700625



##########
File path: 
managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/ManagedCursorImpl.java
##########
@@ -762,6 +764,9 @@ public void asyncReadEntriesOrWait(int maxEntries, long 
maxSizeBytes, ReadEntrie
         } else {
             OpReadEntry op = OpReadEntry.create(this, readPosition, 
numberOfEntriesToRead, callback,
                     ctx, maxPosition);
+            if (op.readPosition == null) {
+                return;

Review comment:
       Do not need call the method here, if `OpReadEntry` init failed, must 
ensure `OpReadEntry->readEntriesFailed` will be called, 
`callback.readEntriesFailed` will be called then.




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