BookKeeper is not compatible with ZookKeeper 3.6.0

[eolivelli]

in ZKRegistrationManager we are using the Utility function org.apache.zookeeper.ZKUtil.deleteRecursive that has been changed in 3.6.0.

To Reproduce
Use ZooKeeper 3.6.0 in a project that is also using BookKeeper 4.10.0
(like diennea/herddb#581)

BookKeeperAdmin won't be able to work.

java.lang.NoSuchMethodError: org.apache.zookeeper.ZKUtil.deleteRecursive(Lorg/apache/zookeeper/ZooKeeper;Ljava/lang/String;)V
	at org.apache.bookkeeper.discover.ZKRegistrationManager.format(ZKRegistrationManager.java:513)
	at org.apache.bookkeeper.client.BookKeeperAdmin.lambda$format$3(BookKeeperAdmin.java:1194)
	at org.apache.bookkeeper.meta.MetadataDrivers.runFunctionWithMetadataBookieDriver(MetadataDrivers.java:370)
	at org.apache.bookkeeper.client.BookKeeperAdmin.format(BookKeeperAdmin.java:1167)

Expected behavior
BookKeeperAdmin should be able to "format" the cluster

[eolivelli]

I have created an issue in ZooKeeper
https://issues.apache.org/jira/browse/ZOOKEEPER-3763

[eolivelli]

With ZK 3.6.1 we won't have this problem anymore,
see the fix for ZOOKEEPER-3763
apache/zookeeper#1287