[GitHub] [pulsar] liudezhi2098 commented on a diff in pull request #15527: [improve][broker] Make some methods of `ClusterBase` pure async.

[GitBox <gi...@apache.org>]

liudezhi2098 commented on code in PR #15527:
URL: https://github.com/apache/pulsar/pull/15527#discussion_r869769521


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pulsar-broker/src/main/java/org/apache/pulsar/broker/admin/impl/ClustersBase.java:
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@@ -64,12 +65,13 @@
 import org.apache.pulsar.common.policies.impl.NamespaceIsolationPolicies;
 import org.apache.pulsar.common.policies.impl.NamespaceIsolationPolicyImpl;
 import org.apache.pulsar.common.util.FutureUtil;
-import org.apache.pulsar.common.util.ObjectMapperFactory;
 import org.apache.pulsar.metadata.api.MetadataStoreException;
 import org.apache.pulsar.metadata.api.MetadataStoreException.NotFoundException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import static javax.ws.rs.core.Response.Status.PRECONDITION_FAILED;

Review Comment:
   check checkstyle



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