The estimated entry count may be a negative value in some cases, then the read operation will get an empty result.

@gaoran10 Just wondering how it could the result could exceed Integer.MAX_VALUE so that the integer value becomes negative in the current logic. Is it the line result += remainEntriesOfLedger; in estimateEntryCountBySize method that causes it? Could we also improve the existing logic and add some test cases to reproduce and prevent such regressions?

Just wondering how it could the result could exceed Integer.MAX_VALUE so that the integer value becomes negative in the current logic. Is it the line result += remainEntriesOfLedger; in estimateEntryCountBySize method that causes it? Could we also improve the existing logic and add some test cases to reproduce and prevent such regressions?

You can try to use this newly added case in the test, if the bytesSize is a Long max value, the result may beyond the Integer max value.

var ml = (ManagedLedgerImpl) factory.open(mlName);
ml.addEntry(new byte[1000]);
int entryCount11 = ManagedCursorImpl.estimateEntryCountBySize(
        Long.MAX_VALUE, PositionFactory.create(ml.getCurrentLedger().getId(), 0), ml);

Add the same release/xxx labels since it's fixing the regression of #23931