aparnasuresh85 commented on code in PR #2585:
URL: https://github.com/apache/solr/pull/2585#discussion_r1690309873


##########
solr/solrj-zookeeper/src/java/org/apache/solr/common/cloud/CollectionPropertiesZkStateReader.java:
##########
@@ -0,0 +1,406 @@
+package org.apache.solr.common.cloud;
+
+import static java.util.Collections.emptyMap;
+
+import java.lang.invoke.MethodHandles;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Future;
+import java.util.concurrent.RejectedExecutionException;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
+import org.apache.solr.common.SolrCloseable;
+import org.apache.solr.common.SolrException;
+import org.apache.solr.common.cloud.ZkStateReader.CollectionWatch;
+import org.apache.solr.common.util.ExecutorUtil;
+import org.apache.solr.common.util.SolrNamedThreadFactory;
+import org.apache.solr.common.util.Utils;
+import org.apache.zookeeper.KeeperException;
+import org.apache.zookeeper.WatchedEvent;
+import org.apache.zookeeper.Watcher;
+import org.apache.zookeeper.data.Stat;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Fetches and manages collection properties from a ZooKeeper ensemble using 
{@link ZkStateReader}
+ * for ZooKeeper client access. Ensures thread safety by synchronizing on the 
update lock provided
+ * by {@link ZkStateReader}
+ */
+public class CollectionPropertiesZkStateReader implements SolrCloseable {
+  private static final Logger log = 
LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
+  private volatile boolean closed = false;

Review Comment:
   I changed CollectionPropertiesZkStateReader to only implement `Closeable`



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