java.lang.UnsupportedOperationException: This exception has no message.

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at java.util.concurrent.CopyOnWriteArrayList$COWIterator.set(
at java.util.Collections.sort(
at org.apache.bookkeeper.mledger.impl.ManagedLedgerImpl$6.operationComplete(
at org.apache.bookkeeper.mledger.impl.ManagedCursorImpl$2.operationComplete(
at org.apache.bookkeeper.mledger.impl.ManagedCursorImpl$24.operationComplete(
at org.apache.bookkeeper.mledger.impl.ManagedCursorImpl$24.operationComplete(
at org.apache.bookkeeper.mledger.impl.MetaStoreImplZookeeper.lambda$null$66(

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