Client side NullPointerException in case of empty Multi operation

Caused by: java.lang.NullPointerExceptionCaused by: java.lang.NullPointerException at org.apache.zookeeper.ZooKeeper.multiInternal(ZooKeeper.java:2105) at org.apache.zookeeper.ZooKeeper.multi(ZooKeeper.java:2050) at org.apache.bookkeeper.zookeeper.ZooKeeperClient.access$1101(ZooKeeperClient.java:70) at org.apache.bookkeeper.zookeeper.ZooKeeperClient$3.zkRun(ZooKeeperClient.java:498) at org.apache.bookkeeper.zookeeper.ZooKeeperClient$ZkRetryRunnable.run(ZooKeeperClient.java:389) at org.apache.bookkeeper.zookeeper.ZooKeeperClient.multi(ZooKeeperClient.java:510) at org.apache.distributedlog.zk.ZKTransaction.execute(ZKTransaction.java:67) at org.apache.distributedlog.BKLogWriteHandler.setLogSegmentTruncationStatus(BKLogWriteHandler.java:1223) at org.apache.distributedlog.BKLogWriteHandler.setLogSegmentsOlderThanDLSNTruncated(BKLogWriteHandler.java:1117) at org.apache.distributedlog.BKLogWriteHandler.lambda$setLogSegmentsOlderThanDLSNTruncated$0(BKLogWriteHandler.java:1083) at java.base/java.util.concurrent.CompletableFuture.uniComposeStage(CompletableFuture.java:1183) at java.base/java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:2299) at org.apache.distributedlog.BKLogWriteHandler.setLogSegmentsOlderThanDLSNTruncated(BKLogWriteHandler.java:1082) at org.apache.distributedlog.BKAsyncLogWriter.truncate(BKAsyncLogWriter.java:449)