diff --git a/client/java-armeria-legacy/src/main/java/com/linecorp/centraldogma/client/armeria/legacy/LegacyCentralDogmaBuilder.java b/client/java-armeria-legacy/src/main/java/com/linecorp/centraldogma/client/armeria/legacy/LegacyCentralDogmaBuilder.java
index 05d6f0175b..c8a2718f69 100644
--- a/client/java-armeria-legacy/src/main/java/com/linecorp/centraldogma/client/armeria/legacy/LegacyCentralDogmaBuilder.java
+++ b/client/java-armeria-legacy/src/main/java/com/linecorp/centraldogma/client/armeria/legacy/LegacyCentralDogmaBuilder.java
@@ -76,7 +76,7 @@ public CentralDogma build() throws UnknownHostException {
 
         final MeterRegistry meterRegistry = meterRegistry().orElse(clientFactory().meterRegistry());
         if (meterRegistry().isPresent() && meterRegistry().get() != clientFactory().meterRegistry()) {
-            logger.info("The specified meterRegistry differs from the meterRegistry from clientFactory.");
+            logger.warn("The specified meterRegistry differs from the meterRegistry from clientFactory.");
         }
 
         final CentralDogma dogma = new LegacyCentralDogma(executor, builder.build(AsyncIface.class),
diff --git a/client/java-armeria/src/main/java/com/linecorp/centraldogma/client/armeria/ArmeriaCentralDogmaBuilder.java b/client/java-armeria/src/main/java/com/linecorp/centraldogma/client/armeria/ArmeriaCentralDogmaBuilder.java
index af5a7e2105..118c966bac 100644
--- a/client/java-armeria/src/main/java/com/linecorp/centraldogma/client/armeria/ArmeriaCentralDogmaBuilder.java
+++ b/client/java-armeria/src/main/java/com/linecorp/centraldogma/client/armeria/ArmeriaCentralDogmaBuilder.java
@@ -54,7 +54,7 @@ public CentralDogma build() throws UnknownHostException {
 
         final MeterRegistry meterRegistry = meterRegistry().orElse(clientFactory().meterRegistry());
         if (meterRegistry().isPresent() && meterRegistry().get() != clientFactory().meterRegistry()) {
-            logger.info("The specified meterRegistry differs from the meterRegistry from clientFactory.");
+            logger.warn("The specified meterRegistry differs from the meterRegistry from clientFactory.");
         }
 
         final CentralDogma dogma = new ArmeriaCentralDogma(executor,
diff --git a/client/java/src/main/java/com/linecorp/centraldogma/client/AbstractCentralDogmaBuilder.java b/client/java/src/main/java/com/linecorp/centraldogma/client/AbstractCentralDogmaBuilder.java
index e649ca96e4..d7655603ab 100644
--- a/client/java/src/main/java/com/linecorp/centraldogma/client/AbstractCentralDogmaBuilder.java
+++ b/client/java/src/main/java/com/linecorp/centraldogma/client/AbstractCentralDogmaBuilder.java
@@ -48,7 +48,6 @@
 import com.linecorp.centraldogma.internal.CsrfToken;
 
 import io.micrometer.core.instrument.MeterRegistry;
-import io.micrometer.core.instrument.Metrics;
 
 /**
  * Builds a {@link CentralDogma} client.