diff --git a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/AbstractRpcBasedConnectionRegistry.java b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/AbstractRpcBasedConnectionRegistry.java
index 0ee374d42c0f..54138d30516c 100644
--- a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/AbstractRpcBasedConnectionRegistry.java
+++ b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/AbstractRpcBasedConnectionRegistry.java
@@ -272,11 +272,6 @@ public CompletableFuture<ServerName> getActiveMaster() {
       getClass().getSimpleName() + ".getActiveMaster");
   }
 
-  @Override
-  public String getConnectionString() {
-    return "unimplemented";
-  }
-
   @Override
   public void close() {
     trace(() -> {
diff --git a/hbase-client/src/test/java/org/apache/hadoop/hbase/client/TestRpcBasedRegistryHedgedReads.java b/hbase-client/src/test/java/org/apache/hadoop/hbase/client/TestRpcBasedRegistryHedgedReads.java
index 29a9c7fcb577..e534ab094d9d 100644
--- a/hbase-client/src/test/java/org/apache/hadoop/hbase/client/TestRpcBasedRegistryHedgedReads.java
+++ b/hbase-client/src/test/java/org/apache/hadoop/hbase/client/TestRpcBasedRegistryHedgedReads.java
@@ -167,6 +167,10 @@ protected Set<ServerName> getBootstrapNodes(Configuration conf) throws IOExcepti
       protected CompletableFuture<Set<ServerName>> fetchEndpoints() {
         return CompletableFuture.completedFuture(BOOTSTRAP_NODES);
       }
+
+      @Override public String getConnectionString() {
+        return "unimplemented";
+      }
     };
   }