Zookeeper : java.lang.ClassNotFoundException: org.apache.zookeeper.admin.ZooKeeperAdmin after updating spring boot - spring-boot

Question

I am trying to update an springboot application which uses org.apache.zookeeper.zookeeper.
After updating the spring boot version. I am getting one of the two errors given below depending upon the version used.
Error 1 - (For new version provided below)
Caused by: org.apache.zookeeper.KeeperException$UnimplementedException: KeeperErrorCode = Unimplemented for /service/**/test/**/************
at org.apache.zookeeper.KeeperException.create(KeeperException.java:106)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:1836)
at org.apache.curator.framework.imps.CreateBuilderImpl$16.call(CreateBuilderImpl.java:1131)
at org.apache.curator.framework.imps.CreateBuilderImpl$16.call(CreateBuilderImpl.java:1113)
at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:93)
at org.apache.curator.framework.imps.CreateBuilderImpl.pathInForeground(CreateBuilderImpl.java:1110)
at org.apache.curator.framework.imps.CreateBuilderImpl.protectedPathInForeground(CreateBuilderImpl.java:593)
at org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:583)
at org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:48)
at org.apache.curator.x.discovery.details.ServiceDiscoveryImpl.internalRegisterService(ServiceDiscoveryImpl.java:237)
at org.apache.curator.x.discovery.details.ServiceDiscoveryImpl.registerService(ServiceDiscoveryImpl.java:192)
at org.springframework.cloud.zookeeper.serviceregistry.ZookeeperServiceRegistry.register(ZookeeperServiceRegistry.java:71)
... 63 more
or
Error 2 - (For some other versions of zookeeper and curator provided in thread 1 provided below)
Caused by: java.lang.ClassNotFoundException: org.apache.zookeeper.admin.ZooKeeperAdmin
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
... 109 more
Old versions: (Working good)
Java - 8
SpringBoot - 2.3.3.RELEASE
Zookeeper - 3.4.12
Curator - 4.0.1
New version: (Spring managed versions)
Java - 8
SpringBoot - 2.7.4
Zookeeper - 3.6.0
Curator - 5.1.0
Many threads mentions that the issue is because of incompatible zookeeper and curator versions.
There are some threads already available regarding the issue
Zookeeper : java.lang.ClassNotFoundException: org.apache.zookeeper.admin.ZooKeeperAdminI tried every solution provided in the this thread and also some other combinations but none seems to work. I tried to use the old version and updating the rest. This too didn't work.
Apache Curator Unimplemented Errors When Trying to Create zNodesI am not accessing the curator directly as provided in this thread and I believe the zookeeper internally uses curator.
Is there any other dependency I need to upgrade? or Do I need to upgrade the java?
Please mention if you need some more info.