NPE exception when calling topic_configuration endpoint

[CCisGG]

2022/08/10 01:57:51.461 ERROR [KafkaCruiseControlServlet] [qtp1636178473-23] [kafka-cruise-control] [] Error processing POST request '/topic_configuration' due to: 'com.linkedin.kafka.cruisecontrol.exception.KafkaCruiseControlException: java.lang.NullPointerException'.
java.util.concurrent.ExecutionException: com.linkedin.kafka.cruisecontrol.exception.KafkaCruiseControlException: java.lang.NullPointerException
        at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:395) ~[?:?]
        at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2022) ~[?:?]
        at com.linkedin.kafka.cruisecontrol.servlet.handler.async.AbstractAsyncRequest.getResponse(AbstractAsyncRequest.java:57) ~[cruise-control-2.5.98.jar:?]
        at com.linkedin.kafka.cruisecontrol.servlet.handler.AbstractRequest.handle(AbstractRequest.java:41) ~[cruise-control-2.5.98.jar:?]
        at com.linkedin.kafka.cruisecontrol.servlet.KafkaCruiseControlServlet.handlePost(KafkaCruiseControlServlet.java:229) ~[cruise-control-2.5.98.jar:?]
        at com.linkedin.kafka.cruisecontrol.servlet.KafkaCruiseControlServlet.doGetOrPost(KafkaCruiseControlServlet.java:127) [cruise-control-2.5.98.jar:?]
        at com.linkedin.kafka.cruisecontrol.servlet.KafkaCruiseControlServlet.doPost(KafkaCruiseControlServlet.java:106) [cruise-control-2.5.98.jar:?]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) [javax.servlet-api-3.1.0.jar:3.1.0]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [javax.servlet-api-3.1.0.jar:3.1.0]
        at org.xeril.util.servlet.ProxyServlet.service(ProxyServlet.java:61) [util-servlet-27.2.32.jar:?]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [javax.servlet-api-3.1.0.jar:3.1.0]
        at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:857) [jetty-servlet-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:535) [jetty-servlet-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) [jetty-security-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1340) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473) [jetty-servlet-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1242) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830]
        at com.linkedin.emweb.ContextBasedHandlerImpl.handle(ContextBasedHandlerImpl.java:73) [emweb-impl-9.2.70.jar:?]
        at com.linkedin.emweb.MapBasedHandlerImpl.handle(MapBasedHandlerImpl.java:480) [emweb-impl-9.2.70.jar:?]
        at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.server.Server.handle(Server.java:503) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:364) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305) [jetty-io-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) [jetty-io-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118) [jetty-io-9.4.12.v20180830.jar:9.4.12.v20180830]
        at com.linkedin.emweb.ThreadPoolWithTracking$QueuedRunnable.run(ThreadPoolWithTracking.java:424) [emweb-impl-9.2.70.jar:?]
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765) [jetty-util-9.4.12.v20180830.jar:9.4.12.v20180830]
        at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683) [jetty-util-9.4.12.v20180830.jar:9.4.12.v20180830]
        at java.lang.Thread.run(Thread.java:829) [?:?]
Caused by: com.linkedin.kafka.cruisecontrol.exception.KafkaCruiseControlException: java.lang.NullPointerException
        at com.linkedin.kafka.cruisecontrol.servlet.handler.async.runnable.GoalBasedOperationRunnable.computeResult(GoalBasedOperationRunnable.java:167) ~[cruise-control-2.5.98.jar:?]
        at com.linkedin.kafka.cruisecontrol.servlet.handler.async.runnable.UpdateTopicConfigurationRunnable.getResult(UpdateTopicConfigurationRunnable.java:149) ~[cruise-control-2.5.98.jar:?]
        at com.linkedin.kafka.cruisecontrol.servlet.handler.async.runnable.UpdateTopicConfigurationRunnable.getResult(UpdateTopicConfigurationRunnable.java:69) ~[cruise-control-2.5.98.jar:?]
        at com.linkedin.kafka.cruisecontrol.servlet.handler.async.runnable.OperationRunnable.run(OperationRunnable.java:45) ~[cruise-control-2.5.98.jar:?]
        at com.linkedin.kafka.cruisecontrol.servlet.handler.async.runnable.GoalBasedOperationRunnable.run(GoalBasedOperationRunnable.java:36) ~[cruise-control-2.5.98.jar:?]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) ~[?:?]
        at java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[?:?]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[?:?]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[?:?]
        ... 1 more
Caused by: java.lang.NullPointerException
        at com.linkedin.kafka.cruisecontrol.model.Host.removeReplica(Host.java:196) ~[cruise-control-2.5.98.jar:?]
        at com.linkedin.kafka.cruisecontrol.model.Rack.removeReplica(Rack.java:167) ~[cruise-control-2.5.98.jar:?]
        at com.linkedin.kafka.cruisecontrol.model.ClusterModel.removeReplica(ClusterModel.java:546) ~[cruise-control-2.5.98.jar:?]
        at com.linkedin.kafka.cruisecontrol.model.ClusterModel.deleteReplica(ClusterModel.java:905) ~[cruise-control-2.5.98.jar:?]
        at com.linkedin.kafka.cruisecontrol.model.ClusterModel.createOrDeleteReplicas(ClusterModel.java:1022) ~[cruise-control-2.5.98.jar:?]
        at com.linkedin.kafka.licruisecontrol.servlet.handler.async.runnable.LiUpdateTopicConfigurationRunnable.workWithClusterModel(LiUpdateTopicConfigurationRunnable.java:78) ~[likafka-cruise-control-impl_2.12-3.2.17.jar:?]
        at com.linkedin.kafka.cruisecontrol.servlet.handler.async.runnable.GoalBasedOperationRunnable.computeResult(GoalBasedOperationRunnable.java:161) ~[cruise-control-2.5.98.jar:?]
        at com.linkedin.kafka.cruisecontrol.servlet.handler.async.runnable.UpdateTopicConfigurationRunnable.getResult(UpdateTopicConfigurationRunnable.java:149) ~[cruise-control-2.5.98.jar:?]
        at com.linkedin.kafka.cruisecontrol.servlet.handler.async.runnable.UpdateTopicConfigurationRunnable.getResult(UpdateTopicConfigurationRunnable.java:69) ~[cruise-control-2.5.98.jar:?]
        at com.linkedin.kafka.cruisecontrol.servlet.handler.async.runnable.OperationRunnable.run(OperationRunnable.java:45) ~[cruise-control-2.5.98.jar:?]
        at com.linkedin.kafka.cruisecontrol.servlet.handler.async.runnable.GoalBasedOperationRunnable.run(GoalBasedOperationRunnable.java:36) ~[cruise-control-2.5.98.jar:?]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) ~[?:?]
        at java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[?:?]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[?:?]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[?:?]