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[fix][ml] Avoid NPE when getCurrentLedger() returns null #24058

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[fix][ml] Avoid NPE when getCurrentLedger() returns null #24058

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3 changes: 2 additions & 1 deletion managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/ManagedCursorImpl.java
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Original file line number Diff line number Diff line change
Expand Up @@ -3826,7 +3826,8 @@ static long estimateEntryCountBySize(long bytesSize, Position readPosition, Mana

while (remainingBytesSize > 0) {
// Last ledger.
if (posToRead.getLedgerId() == ml.getCurrentLedger().getId()) {
LedgerHandle currentLedger = ml.getCurrentLedger();
if (currentLedger != null && posToRead.getLedgerId() == currentLedger.getId()) {
if (ml.getCurrentLedgerSize() == 0 || ml.getCurrentLedgerEntries() == 0) {
// Only read 1 entry if no entries to read.
return 1;
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